Merge tag 'drm-misc-next-2024-02-29' of...

Merge tag 'drm-misc-next-2024-02-29' of https://anongit.freedesktop.org/git/drm/drm-misc into drm-next

drm-misc-next for v6.9:

UAPI Changes:

Cross-subsystem Changes:

backlight:
- corgi: include backlight header

fbdev:
- Cleanup includes in public header file
- fbtft: Include backlight header

Core Changes:

edid:
- Remove built-in EDID data

dp:
- Avoid AUX transfers on powered-down displays
- Add VSC SDP helpers

modesetting:
- Add sanity checks for polling
- Cleanups

scheduler:
- Cleanups

tests:
- Add helpers for mode-setting tests

Driver Changes:

i915:
- Use shared VSC SDP helper

mgag200:
- Work around PCI write bursts

mxsfb:
- Use managed mode config

nouveau:
- Include backlight header where necessary

qiac:
- Cleanups

sun4:
- HDMI: updates to atomic mode setting

tegra:
- Fix GEM refounting in error paths

tidss:
- Fix multi display
- Fix initial Z position

v3d:
- Support display MMU page size
Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20240229084806.GA21616@localhost.localdomain

Documentation/admin-guide/edid.rst

@@ -24,37 +24,4 @@ restrictions later on.
 As a remedy for such situations, the kernel configuration item
 CONFIG_DRM_LOAD_EDID_FIRMWARE was introduced. It allows to provide an
 individually prepared or corrected EDID data set in the /lib/firmware
-directory from where it is loaded via the firmware interface. The code
-(see drivers/gpu/drm/drm_edid_load.c) contains built-in data sets for
-commonly used screen resolutions (800x600, 1024x768, 1280x1024, 1600x1200,
-1680x1050, 1920x1080) as binary blobs, but the kernel source tree does
-not contain code to create these data. In order to elucidate the origin
-of the built-in binary EDID blobs and to facilitate the creation of
-individual data for a specific misbehaving monitor, commented sources
-and a Makefile environment are given here.
-
-To create binary EDID and C source code files from the existing data
-material, simply type "make" in tools/edid/.
-
-If you want to create your own EDID file, copy the file 1024x768.S,
-replace the settings with your own data and add a new target to the
-Makefile. Please note that the EDID data structure expects the timing
-values in a different way as compared to the standard X11 format.
-
-X11:
-  HTimings:
-    hdisp hsyncstart hsyncend htotal
-  VTimings:
-    vdisp vsyncstart vsyncend vtotal
-
-EDID::
-
-  #define XPIX hdisp
-  #define XBLANK htotal-hdisp
-  #define XOFFSET hsyncstart-hdisp
-  #define XPULSE hsyncend-hsyncstart
-
-  #define YPIX vdisp
-  #define YBLANK vtotal-vdisp
-  #define YOFFSET vsyncstart-vdisp
-  #define YPULSE vsyncend-vsyncstart
+directory from where it is loaded via the firmware interface.

Documentation/admin-guide/kernel-parameters.txt

@@ -1162,16 +1162,10 @@
 			panels may send no or incorrect EDID data sets.
 			This parameter allows to specify an EDID data sets
 			in the /lib/firmware directory that are used instead.
-			Generic built-in EDID data sets are used, if one of
-			edid/1024x768.bin, edid/1280x1024.bin,
-			edid/1680x1050.bin, or edid/1920x1080.bin is given
-			and no file with the same name exists. Details and
-			instructions how to build your own EDID data are
-			available in Documentation/admin-guide/edid.rst. An EDID
-			data set will only be used for a particular connector,
-			if its name and a colon are prepended to the EDID
-			name. Each connector may use a unique EDID data
-			set by separating the files with a comma.  An EDID
+			An EDID data set will only be used for a particular
+			connector, if its name and a colon are prepended to
+			the EDID name. Each connector may use a unique EDID
+			data set by separating the files with a comma. An EDID
 			data set with no connector name will be used for
 			any connectors not explicitly specified.
 

drivers/accel/qaic/mhi_controller.c

@@ -20,7 +20,7 @@ static unsigned int mhi_timeout_ms = 2000; /* 2 sec default */
 module_param(mhi_timeout_ms, uint, 0600);
 MODULE_PARM_DESC(mhi_timeout_ms, "MHI controller timeout value");
 
-static struct mhi_channel_config aic100_channels[] = {
+static const struct mhi_channel_config aic100_channels[] = {
 	{
 		.name = "QAIC_LOOPBACK",
 		.num = 0,

drivers/gpu/drm/display/drm_dp_helper.c

@@ -532,6 +532,15 @@ static int drm_dp_dpcd_access(struct drm_dp_aux *aux, u8 request,
 
 	mutex_lock(&aux->hw_mutex);
 
+	/*
+	 * If the device attached to the aux bus is powered down then there's
+	 * no reason to attempt a transfer. Error out immediately.
+	 */
+	if (aux->powered_down) {
+		ret = -EBUSY;
+		goto unlock;
+	}
+
 	/*
 	 * The specification doesn't give any recommendation on how often to
 	 * retry native transactions. We used to retry 7 times like for
@@ -599,6 +608,29 @@ int drm_dp_dpcd_probe(struct drm_dp_aux *aux, unsigned int offset)
 }
 EXPORT_SYMBOL(drm_dp_dpcd_probe);
 
+/**
+ * drm_dp_dpcd_set_powered() - Set whether the DP device is powered
+ * @aux: DisplayPort AUX channel; for convenience it's OK to pass NULL here
+ *       and the function will be a no-op.
+ * @powered: true if powered; false if not
+ *
+ * If the endpoint device on the DP AUX bus is known to be powered down
+ * then this function can be called to make future transfers fail immediately
+ * instead of needing to time out.
+ *
+ * If this function is never called then a device defaults to being powered.
+ */
+void drm_dp_dpcd_set_powered(struct drm_dp_aux *aux, bool powered)
+{
+	if (!aux)
+		return;
+
+	mutex_lock(&aux->hw_mutex);
+	aux->powered_down = !powered;
+	mutex_unlock(&aux->hw_mutex);
+}
+EXPORT_SYMBOL(drm_dp_dpcd_set_powered);
+
 /**
  * drm_dp_dpcd_read() - read a series of bytes from the DPCD
  * @aux: DisplayPort AUX channel (SST or MST)
@@ -1858,6 +1890,9 @@ static int drm_dp_i2c_xfer(struct i2c_adapter *adapter, struct i2c_msg *msgs,
 	struct drm_dp_aux_msg msg;
 	int err = 0;
 
+	if (aux->powered_down)
+		return -EBUSY;
+
 	dp_aux_i2c_transfer_size = clamp(dp_aux_i2c_transfer_size, 1, DP_AUX_MAX_PAYLOAD_BYTES);
 
 	memset(&msg, 0, sizeof(msg));
@@ -2913,6 +2948,103 @@ void drm_dp_vsc_sdp_log(struct drm_printer *p, const struct drm_dp_vsc_sdp *vsc)
 }
 EXPORT_SYMBOL(drm_dp_vsc_sdp_log);
 
+/**
+ * drm_dp_vsc_sdp_supported() - check if vsc sdp is supported
+ * @aux: DisplayPort AUX channel
+ * @dpcd: DisplayPort configuration data
+ *
+ * Returns true if vsc sdp is supported, else returns false
+ */
+bool drm_dp_vsc_sdp_supported(struct drm_dp_aux *aux, const u8 dpcd[DP_RECEIVER_CAP_SIZE])
+{
+	u8 rx_feature;
+
+	if (dpcd[DP_DPCD_REV] < DP_DPCD_REV_13)
+		return false;
+
+	if (drm_dp_dpcd_readb(aux, DP_DPRX_FEATURE_ENUMERATION_LIST, &rx_feature) != 1) {
+		drm_dbg_dp(aux->drm_dev, "failed to read DP_DPRX_FEATURE_ENUMERATION_LIST\n");
+		return false;
+	}
+
+	return (rx_feature & DP_VSC_SDP_EXT_FOR_COLORIMETRY_SUPPORTED);
+}
+EXPORT_SYMBOL(drm_dp_vsc_sdp_supported);
+
+/**
+ * drm_dp_vsc_sdp_pack() - pack a given vsc sdp into generic dp_sdp
+ * @vsc: vsc sdp initialized according to its purpose as defined in
+ *       table 2-118 - table 2-120 in DP 1.4a specification
+ * @sdp: valid handle to the generic dp_sdp which will be packed
+ *
+ * Returns length of sdp on success and error code on failure
+ */
+ssize_t drm_dp_vsc_sdp_pack(const struct drm_dp_vsc_sdp *vsc,
+			    struct dp_sdp *sdp)
+{
+	size_t length = sizeof(struct dp_sdp);
+
+	memset(sdp, 0, sizeof(struct dp_sdp));
+
+	/*
+	 * Prepare VSC Header for SU as per DP 1.4a spec, Table 2-119
+	 * VSC SDP Header Bytes
+	 */
+	sdp->sdp_header.HB0 = 0; /* Secondary-Data Packet ID = 0 */
+	sdp->sdp_header.HB1 = vsc->sdp_type; /* Secondary-data Packet Type */
+	sdp->sdp_header.HB2 = vsc->revision; /* Revision Number */
+	sdp->sdp_header.HB3 = vsc->length; /* Number of Valid Data Bytes */
+
+	if (vsc->revision == 0x6) {
+		sdp->db[0] = 1;
+		sdp->db[3] = 1;
+	}
+
+	/*
+	 * Revision 0x5 and revision 0x7 supports Pixel Encoding/Colorimetry
+	 * Format as per DP 1.4a spec and DP 2.0 respectively.
+	 */
+	if (!(vsc->revision == 0x5 || vsc->revision == 0x7))
+		goto out;
+
+	/* VSC SDP Payload for DB16 through DB18 */
+	/* Pixel Encoding and Colorimetry Formats  */
+	sdp->db[16] = (vsc->pixelformat & 0xf) << 4; /* DB16[7:4] */
+	sdp->db[16] |= vsc->colorimetry & 0xf; /* DB16[3:0] */
+
+	switch (vsc->bpc) {
+	case 6:
+		/* 6bpc: 0x0 */
+		break;
+	case 8:
+		sdp->db[17] = 0x1; /* DB17[3:0] */
+		break;
+	case 10:
+		sdp->db[17] = 0x2;
+		break;
+	case 12:
+		sdp->db[17] = 0x3;
+		break;
+	case 16:
+		sdp->db[17] = 0x4;
+		break;
+	default:
+		WARN(1, "Missing case %d\n", vsc->bpc);
+		return -EINVAL;
+	}
+
+	/* Dynamic Range and Component Bit Depth */
+	if (vsc->dynamic_range == DP_DYNAMIC_RANGE_CTA)
+		sdp->db[17] |= 0x80;  /* DB17[7] */
+
+	/* Content Type */
+	sdp->db[18] = vsc->content_type & 0x7;
+
+out:
+	return length;
+}
+EXPORT_SYMBOL(drm_dp_vsc_sdp_pack);
+
 /**
  * drm_dp_get_pcon_max_frl_bw() - maximum frl supported by PCON
  * @dpcd: DisplayPort configuration data

drivers/gpu/drm/drm_crtc.c

@@ -107,18 +107,6 @@ int drm_crtc_force_disable(struct drm_crtc *crtc)
 	return drm_mode_set_config_internal(&set);
 }
 
-static unsigned int drm_num_crtcs(struct drm_device *dev)
-{
-	unsigned int num = 0;
-	struct drm_crtc *tmp;
-
-	drm_for_each_crtc(tmp, dev) {
-		num++;
-	}
-
-	return num;
-}
-
 int drm_crtc_register_all(struct drm_device *dev)
 {
 	struct drm_crtc *crtc;
@@ -278,8 +266,7 @@ static int __drm_crtc_init_with_planes(struct drm_device *dev, struct drm_crtc *
 	if (name) {
 		crtc->name = kvasprintf(GFP_KERNEL, name, ap);
 	} else {
-		crtc->name = kasprintf(GFP_KERNEL, "crtc-%d",
-				       drm_num_crtcs(dev));
+		crtc->name = kasprintf(GFP_KERNEL, "crtc-%d", config->num_crtc);
 	}
 	if (!crtc->name) {
 		drm_mode_object_unregister(dev, &crtc->base);

drivers/gpu/drm/drm_edid_load.c

@@ -20,162 +20,28 @@
 
 static char edid_firmware[PATH_MAX];
 module_param_string(edid_firmware, edid_firmware, sizeof(edid_firmware), 0644);
-MODULE_PARM_DESC(edid_firmware, "Do not probe monitor, use specified EDID blob "
-	"from built-in data or /lib/firmware instead. ");
-
-#define GENERIC_EDIDS 6
-static const char * const generic_edid_name[GENERIC_EDIDS] = {
-	"edid/800x600.bin",
-	"edid/1024x768.bin",
-	"edid/1280x1024.bin",
-	"edid/1600x1200.bin",
-	"edid/1680x1050.bin",
-	"edid/1920x1080.bin",
-};
-
-static const u8 generic_edid[GENERIC_EDIDS][128] = {
-	{
-	0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00,
-	0x31, 0xd8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x05, 0x16, 0x01, 0x03, 0x6d, 0x1b, 0x14, 0x78,
-	0xea, 0x5e, 0xc0, 0xa4, 0x59, 0x4a, 0x98, 0x25,
-	0x20, 0x50, 0x54, 0x01, 0x00, 0x00, 0x45, 0x40,
-	0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
-	0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0xa0, 0x0f,
-	0x20, 0x00, 0x31, 0x58, 0x1c, 0x20, 0x28, 0x80,
-	0x14, 0x00, 0x15, 0xd0, 0x10, 0x00, 0x00, 0x1e,
-	0x00, 0x00, 0x00, 0xff, 0x00, 0x4c, 0x69, 0x6e,
-	0x75, 0x78, 0x20, 0x23, 0x30, 0x0a, 0x20, 0x20,
-	0x20, 0x20, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x3b,
-	0x3d, 0x24, 0x26, 0x05, 0x00, 0x0a, 0x20, 0x20,
-	0x20, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfc,
-	0x00, 0x4c, 0x69, 0x6e, 0x75, 0x78, 0x20, 0x53,
-	0x56, 0x47, 0x41, 0x0a, 0x20, 0x20, 0x00, 0xc2,
-	},
-	{
-	0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00,
-	0x31, 0xd8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x05, 0x16, 0x01, 0x03, 0x6d, 0x23, 0x1a, 0x78,
-	0xea, 0x5e, 0xc0, 0xa4, 0x59, 0x4a, 0x98, 0x25,
-	0x20, 0x50, 0x54, 0x00, 0x08, 0x00, 0x61, 0x40,
-	0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
-	0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x64, 0x19,
-	0x00, 0x40, 0x41, 0x00, 0x26, 0x30, 0x08, 0x90,
-	0x36, 0x00, 0x63, 0x0a, 0x11, 0x00, 0x00, 0x18,
-	0x00, 0x00, 0x00, 0xff, 0x00, 0x4c, 0x69, 0x6e,
-	0x75, 0x78, 0x20, 0x23, 0x30, 0x0a, 0x20, 0x20,
-	0x20, 0x20, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x3b,
-	0x3d, 0x2f, 0x31, 0x07, 0x00, 0x0a, 0x20, 0x20,
-	0x20, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfc,
-	0x00, 0x4c, 0x69, 0x6e, 0x75, 0x78, 0x20, 0x58,
-	0x47, 0x41, 0x0a, 0x20, 0x20, 0x20, 0x00, 0x55,
-	},
-	{
-	0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00,
-	0x31, 0xd8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x05, 0x16, 0x01, 0x03, 0x6d, 0x2c, 0x23, 0x78,
-	0xea, 0x5e, 0xc0, 0xa4, 0x59, 0x4a, 0x98, 0x25,
-	0x20, 0x50, 0x54, 0x00, 0x00, 0x00, 0x81, 0x80,
-	0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
-	0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x30, 0x2a,
-	0x00, 0x98, 0x51, 0x00, 0x2a, 0x40, 0x30, 0x70,
-	0x13, 0x00, 0xbc, 0x63, 0x11, 0x00, 0x00, 0x1e,
-	0x00, 0x00, 0x00, 0xff, 0x00, 0x4c, 0x69, 0x6e,
-	0x75, 0x78, 0x20, 0x23, 0x30, 0x0a, 0x20, 0x20,
-	0x20, 0x20, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x3b,
-	0x3d, 0x3e, 0x40, 0x0b, 0x00, 0x0a, 0x20, 0x20,
-	0x20, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfc,
-	0x00, 0x4c, 0x69, 0x6e, 0x75, 0x78, 0x20, 0x53,
-	0x58, 0x47, 0x41, 0x0a, 0x20, 0x20, 0x00, 0xa0,
-	},
-	{
-	0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00,
-	0x31, 0xd8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x05, 0x16, 0x01, 0x03, 0x6d, 0x37, 0x29, 0x78,
-	0xea, 0x5e, 0xc0, 0xa4, 0x59, 0x4a, 0x98, 0x25,
-	0x20, 0x50, 0x54, 0x00, 0x00, 0x00, 0xa9, 0x40,
-	0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
-	0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x48, 0x3f,
-	0x40, 0x30, 0x62, 0xb0, 0x32, 0x40, 0x40, 0xc0,
-	0x13, 0x00, 0x2b, 0xa0, 0x21, 0x00, 0x00, 0x1e,
-	0x00, 0x00, 0x00, 0xff, 0x00, 0x4c, 0x69, 0x6e,
-	0x75, 0x78, 0x20, 0x23, 0x30, 0x0a, 0x20, 0x20,
-	0x20, 0x20, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x3b,
-	0x3d, 0x4a, 0x4c, 0x11, 0x00, 0x0a, 0x20, 0x20,
-	0x20, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfc,
-	0x00, 0x4c, 0x69, 0x6e, 0x75, 0x78, 0x20, 0x55,
-	0x58, 0x47, 0x41, 0x0a, 0x20, 0x20, 0x00, 0x9d,
-	},
-	{
-	0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00,
-	0x31, 0xd8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x05, 0x16, 0x01, 0x03, 0x6d, 0x2b, 0x1b, 0x78,
-	0xea, 0x5e, 0xc0, 0xa4, 0x59, 0x4a, 0x98, 0x25,
-	0x20, 0x50, 0x54, 0x00, 0x00, 0x00, 0xb3, 0x00,
-	0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
-	0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x21, 0x39,
-	0x90, 0x30, 0x62, 0x1a, 0x27, 0x40, 0x68, 0xb0,
-	0x36, 0x00, 0xb5, 0x11, 0x11, 0x00, 0x00, 0x1e,
-	0x00, 0x00, 0x00, 0xff, 0x00, 0x4c, 0x69, 0x6e,
-	0x75, 0x78, 0x20, 0x23, 0x30, 0x0a, 0x20, 0x20,
-	0x20, 0x20, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x3b,
-	0x3d, 0x40, 0x42, 0x0f, 0x00, 0x0a, 0x20, 0x20,
-	0x20, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfc,
-	0x00, 0x4c, 0x69, 0x6e, 0x75, 0x78, 0x20, 0x57,
-	0x53, 0x58, 0x47, 0x41, 0x0a, 0x20, 0x00, 0x26,
-	},
-	{
-	0x00, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00,
-	0x31, 0xd8, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
-	0x05, 0x16, 0x01, 0x03, 0x6d, 0x32, 0x1c, 0x78,
-	0xea, 0x5e, 0xc0, 0xa4, 0x59, 0x4a, 0x98, 0x25,
-	0x20, 0x50, 0x54, 0x00, 0x00, 0x00, 0xd1, 0xc0,
-	0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x01,
-	0x01, 0x01, 0x01, 0x01, 0x01, 0x01, 0x02, 0x3a,
-	0x80, 0x18, 0x71, 0x38, 0x2d, 0x40, 0x58, 0x2c,
-	0x45, 0x00, 0xf4, 0x19, 0x11, 0x00, 0x00, 0x1e,
-	0x00, 0x00, 0x00, 0xff, 0x00, 0x4c, 0x69, 0x6e,
-	0x75, 0x78, 0x20, 0x23, 0x30, 0x0a, 0x20, 0x20,
-	0x20, 0x20, 0x00, 0x00, 0x00, 0xfd, 0x00, 0x3b,
-	0x3d, 0x42, 0x44, 0x0f, 0x00, 0x0a, 0x20, 0x20,
-	0x20, 0x20, 0x20, 0x20, 0x00, 0x00, 0x00, 0xfc,
-	0x00, 0x4c, 0x69, 0x6e, 0x75, 0x78, 0x20, 0x46,
-	0x48, 0x44, 0x0a, 0x20, 0x20, 0x20, 0x00, 0x05,
-	},
-};
+MODULE_PARM_DESC(edid_firmware,
+		 "Do not probe monitor, use specified EDID blob from /lib/firmware instead.");
 
 static const struct drm_edid *edid_load(struct drm_connector *connector, const char *name)
 {
 	const struct firmware *fw = NULL;
-	const u8 *fwdata;
 	const struct drm_edid *drm_edid;
-	int fwsize, builtin;
-
-	builtin = match_string(generic_edid_name, GENERIC_EDIDS, name);
-	if (builtin >= 0) {
-		fwdata = generic_edid[builtin];
-		fwsize = sizeof(generic_edid[builtin]);
-	} else {
-		int err;
-
-		err = request_firmware(&fw, name, connector->dev->dev);
-		if (err) {
-			drm_err(connector->dev,
-				"[CONNECTOR:%d:%s] Requesting EDID firmware \"%s\" failed (err=%d)\n",
-				connector->base.id, connector->name,
-				name, err);
-			return ERR_PTR(err);
-		}
-
-		fwdata = fw->data;
-		fwsize = fw->size;
+	int err;
+
+	err = request_firmware(&fw, name, connector->dev->dev);
+	if (err) {
+		drm_err(connector->dev,
+			"[CONNECTOR:%d:%s] Requesting EDID firmware \"%s\" failed (err=%d)\n",
+			connector->base.id, connector->name,
+			name, err);
+		return ERR_PTR(err);
 	}
 
-	drm_dbg_kms(connector->dev, "[CONNECTOR:%d:%s] Loaded %s firmware EDID \"%s\"\n",
-		    connector->base.id, connector->name,
-		    builtin >= 0 ? "built-in" : "external", name);
+	drm_dbg_kms(connector->dev, "[CONNECTOR:%d:%s] Loaded external firmware EDID \"%s\"\n",
+		    connector->base.id, connector->name, name);
 
-	drm_edid = drm_edid_alloc(fwdata, fwsize);
+	drm_edid = drm_edid_alloc(fw->data, fw->size);
 	if (!drm_edid_valid(drm_edid)) {
 		drm_err(connector->dev, "Invalid firmware EDID \"%s\"\n", name);
 		drm_edid_free(drm_edid);

drivers/gpu/drm/drm_modeset_helper.c

@@ -193,13 +193,22 @@ int drm_mode_config_helper_suspend(struct drm_device *dev)
 
 	if (!dev)
 		return 0;
+	/*
+	 * Don't disable polling if it was never initialized
+	 */
+	if (dev->mode_config.poll_enabled)
+		drm_kms_helper_poll_disable(dev);
 
-	drm_kms_helper_poll_disable(dev);
 	drm_fb_helper_set_suspend_unlocked(dev->fb_helper, 1);
 	state = drm_atomic_helper_suspend(dev);
 	if (IS_ERR(state)) {
 		drm_fb_helper_set_suspend_unlocked(dev->fb_helper, 0);
-		drm_kms_helper_poll_enable(dev);
+		/*
+		 * Don't enable polling if it was never initialized
+		 */
+		if (dev->mode_config.poll_enabled)
+			drm_kms_helper_poll_enable(dev);
+
 		return PTR_ERR(state);
 	}
 
@@ -239,7 +248,11 @@ int drm_mode_config_helper_resume(struct drm_device *dev)
 	dev->mode_config.suspend_state = NULL;
 
 	drm_fb_helper_set_suspend_unlocked(dev->fb_helper, 0);
-	drm_kms_helper_poll_enable(dev);
+	/*
+	 * Don't enable polling if it is not initialized
+	 */
+	if (dev->mode_config.poll_enabled)
+		drm_kms_helper_poll_enable(dev);
 
 	return ret;
 }

drivers/gpu/drm/drm_probe_helper.c

@@ -293,14 +293,17 @@ static void reschedule_output_poll_work(struct drm_device *dev)
  * Drivers can call this helper from their device resume implementation. It is
  * not an error to call this even when output polling isn't enabled.
  *
+ * If device polling was never initialized before, this call will trigger a
+ * warning and return.
+ *
  * Note that calls to enable and disable polling must be strictly ordered, which
  * is automatically the case when they're only call from suspend/resume
  * callbacks.
  */
 void drm_kms_helper_poll_enable(struct drm_device *dev)
 {
-	if (!dev->mode_config.poll_enabled || !drm_kms_helper_poll ||
-	    dev->mode_config.poll_running)
+	if (drm_WARN_ON_ONCE(dev, !dev->mode_config.poll_enabled) ||
+	    !drm_kms_helper_poll || dev->mode_config.poll_running)
 		return;
 
 	if (drm_kms_helper_enable_hpd(dev) ||
@@ -619,8 +622,12 @@ int drm_helper_probe_single_connector_modes(struct drm_connector *connector,
 					 0);
 	}
 
-	/* Re-enable polling in case the global poll config changed. */
-	drm_kms_helper_poll_enable(dev);
+	/*
+	 * Re-enable polling in case the global poll config changed but polling
+	 * is still initialized.
+	 */
+	if (dev->mode_config.poll_enabled)
+		drm_kms_helper_poll_enable(dev);
 
 	if (connector->status == connector_status_disconnected) {
 		DRM_DEBUG_KMS("[CONNECTOR:%d:%s] disconnected\n",
@@ -871,12 +878,18 @@ EXPORT_SYMBOL(drm_kms_helper_is_poll_worker);
  * not an error to call this even when output polling isn't enabled or already
  * disabled. Polling is re-enabled by calling drm_kms_helper_poll_enable().
  *
+ * If however, the polling was never initialized, this call will trigger a
+ * warning and return
+ *
  * Note that calls to enable and disable polling must be strictly ordered, which
  * is automatically the case when they're only call from suspend/resume
  * callbacks.
  */
 void drm_kms_helper_poll_disable(struct drm_device *dev)
 {
+	if (drm_WARN_ON(dev, !dev->mode_config.poll_enabled))
+		return;
+
 	if (dev->mode_config.poll_running)
 		drm_kms_helper_disable_hpd(dev);
 

drivers/gpu/drm/i915/display/intel_dp.c

@@ -4127,73 +4127,6 @@ intel_dp_needs_vsc_sdp(const struct intel_crtc_state *crtc_state,
 	return false;
 }
 
-static ssize_t intel_dp_vsc_sdp_pack(const struct drm_dp_vsc_sdp *vsc,
-				     struct dp_sdp *sdp, size_t size)
-{
-	size_t length = sizeof(struct dp_sdp);
-
-	if (size < length)
-		return -ENOSPC;
-
-	memset(sdp, 0, size);
-
-	/*
-	 * Prepare VSC Header for SU as per DP 1.4a spec, Table 2-119
-	 * VSC SDP Header Bytes
-	 */
-	sdp->sdp_header.HB0 = 0; /* Secondary-Data Packet ID = 0 */
-	sdp->sdp_header.HB1 = vsc->sdp_type; /* Secondary-data Packet Type */
-	sdp->sdp_header.HB2 = vsc->revision; /* Revision Number */
-	sdp->sdp_header.HB3 = vsc->length; /* Number of Valid Data Bytes */
-
-	if (vsc->revision == 0x6) {
-		sdp->db[0] = 1;
-		sdp->db[3] = 1;
-	}
-
-	/*
-	 * Revision 0x5 and revision 0x7 supports Pixel Encoding/Colorimetry
-	 * Format as per DP 1.4a spec and DP 2.0 respectively.
-	 */
-	if (!(vsc->revision == 0x5 || vsc->revision == 0x7))
-		goto out;
-
-	/* VSC SDP Payload for DB16 through DB18 */
-	/* Pixel Encoding and Colorimetry Formats  */
-	sdp->db[16] = (vsc->pixelformat & 0xf) << 4; /* DB16[7:4] */
-	sdp->db[16] |= vsc->colorimetry & 0xf; /* DB16[3:0] */
-
-	switch (vsc->bpc) {
-	case 6:
-		/* 6bpc: 0x0 */
-		break;
-	case 8:
-		sdp->db[17] = 0x1; /* DB17[3:0] */
-		break;
-	case 10:
-		sdp->db[17] = 0x2;
-		break;
-	case 12:
-		sdp->db[17] = 0x3;
-		break;
-	case 16:
-		sdp->db[17] = 0x4;
-		break;
-	default:
-		MISSING_CASE(vsc->bpc);
-		break;
-	}
-	/* Dynamic Range and Component Bit Depth */
-	if (vsc->dynamic_range == DP_DYNAMIC_RANGE_CTA)
-		sdp->db[17] |= 0x80;  /* DB17[7] */
-
-	/* Content Type */
-	sdp->db[18] = vsc->content_type & 0x7;
-
-out:
-	return length;
-}
-
 static ssize_t
 intel_dp_hdr_metadata_infoframe_sdp_pack(struct drm_i915_private *i915,
 					 const struct hdmi_drm_infoframe *drm_infoframe,
@@ -4286,8 +4219,7 @@ static void intel_write_dp_sdp(struct intel_encoder *encoder,
 
 	switch (type) {
 	case DP_SDP_VSC:
-		len = intel_dp_vsc_sdp_pack(&crtc_state->infoframes.vsc, &sdp,
-					    sizeof(sdp));
+		len = drm_dp_vsc_sdp_pack(&crtc_state->infoframes.vsc, &sdp);
 		break;
 	case HDMI_PACKET_TYPE_GAMUT_METADATA:
 		len = intel_dp_hdr_metadata_infoframe_sdp_pack(dev_priv,

drivers/gpu/drm/mgag200/Kconfig

@@ -11,3 +11,15 @@ config DRM_MGAG200
 	 MGA G200 desktop chips and the server variants. It requires 0.3.0
 	 of the modesetting userspace driver, and a version of mga driver
 	 that will fail on KMS enabled devices.
+
+config DRM_MGAG200_IOBURST_WORKAROUND
+	bool "Disable buffer caching"
+	depends on DRM_MGAG200 && PREEMPT_RT && X86
+	help
+	  Enable a workaround to avoid I/O bursts within the mgag200 driver at
+	  the expense of overall display performance.
+	  It restores the <v5.10 behavior, by mapping the framebuffer in system
+	  RAM as Write-Combining, and flushing the cache after each write.
+	  This is only useful on x86_64 if you want to run processes with
+	  deterministic latency.
+	  If unsure, say N.

drivers/gpu/drm/mgag200/mgag200_drv.c

@@ -84,6 +84,20 @@ resource_size_t mgag200_probe_vram(void __iomem *mem, resource_size_t size)
 	return offset - 65536;
 }
 
+#if defined(CONFIG_DRM_MGAG200_IOBURST_WORKAROUND)
+static struct drm_gem_object *mgag200_create_object(struct drm_device *dev, size_t size)
+{
+	struct drm_gem_shmem_object *shmem;
+
+	shmem = kzalloc(sizeof(*shmem), GFP_KERNEL);
+	if (!shmem)
+		return NULL;
+
+	shmem->map_wc = true;
+	return &shmem->base;
+}
+#endif
+
 /*
  * DRM driver
  */
@@ -99,6 +113,9 @@ static const struct drm_driver mgag200_driver = {
 	.major = DRIVER_MAJOR,
 	.minor = DRIVER_MINOR,
 	.patchlevel = DRIVER_PATCHLEVEL,
+#if defined(CONFIG_DRM_MGAG200_IOBURST_WORKAROUND)
+	.gem_create_object = mgag200_create_object,
+#endif
 	DRM_GEM_SHMEM_DRIVER_OPS,
 };
 

drivers/gpu/drm/mgag200/mgag200_mode.c

@@ -13,6 +13,7 @@
 
 #include <drm/drm_atomic.h>
 #include <drm/drm_atomic_helper.h>
+#include <drm/drm_cache.h>
 #include <drm/drm_damage_helper.h>
 #include <drm/drm_edid.h>
 #include <drm/drm_format_helper.h>
@@ -436,6 +437,13 @@ static void mgag200_handle_damage(struct mga_device *mdev, const struct iosys_ma
 
 	iosys_map_incr(&dst, drm_fb_clip_offset(fb->pitches[0], fb->format, clip));
 	drm_fb_memcpy(&dst, fb->pitches, vmap, fb, clip);
+
+	/* Flushing the cache greatly improves latency on x86_64 */
+#if defined(CONFIG_DRM_MGAG200_IOBURST_WORKAROUND)
+	if (!vmap->is_iomem)
+		drm_clflush_virt_range(vmap->vaddr + clip->y1 * fb->pitches[0],
+				       drm_rect_height(clip) * fb->pitches[0]);
+#endif
 }
 
 /*

drivers/gpu/drm/mxsfb/lcdif_drv.c

@@ -167,7 +167,11 @@ static int lcdif_load(struct drm_device *drm)
 		return ret;
 
 	/* Modeset init */
-	drm_mode_config_init(drm);
+	ret = drmm_mode_config_init(drm);
+	if (ret) {
+		dev_err(drm->dev, "Failed to initialize mode config\n");
+		return ret;
+	}
 
 	ret = lcdif_kms_init(lcdif);
 	if (ret < 0) {
@@ -227,7 +231,6 @@ static void lcdif_unload(struct drm_device *drm)
 	drm_crtc_vblank_off(&lcdif->crtc);
 
 	drm_kms_helper_poll_fini(drm);
-	drm_mode_config_cleanup(drm);
 
 	pm_runtime_put_sync(drm->dev);
 	pm_runtime_disable(drm->dev);

drivers/gpu/drm/mxsfb/mxsfb_drv.c

@@ -249,7 +249,11 @@ static int mxsfb_load(struct drm_device *drm,
 	pm_runtime_enable(drm->dev);
 
 	/* Modeset init */
-	drm_mode_config_init(drm);
+	ret = drmm_mode_config_init(drm);
+	if (ret) {
+		dev_err(drm->dev, "Failed to initialize mode config\n");
+		goto err_vblank;
+	}
 
 	ret = mxsfb_kms_init(mxsfb);
 	if (ret < 0) {
@@ -312,7 +316,6 @@ static int mxsfb_load(struct drm_device *drm,
 static void mxsfb_unload(struct drm_device *drm)
 {
 	drm_kms_helper_poll_fini(drm);
-	drm_mode_config_cleanup(drm);
 
 	pm_runtime_get_sync(drm->dev);
 	mxsfb_irq_uninstall(drm);

drivers/gpu/drm/nouveau/dispnv50/disp.c

@@ -28,6 +28,7 @@
 #include "wndw.h"
 #include "handles.h"
 
+#include <linux/backlight.h>
 #include <linux/dma-mapping.h>
 #include <linux/hdmi.h>
 #include <linux/component.h>

drivers/gpu/drm/panel/panel-edp.c

@@ -413,6 +413,7 @@ static int panel_edp_suspend(struct device *dev)
 {
 	struct panel_edp *p = dev_get_drvdata(dev);
 
+	drm_dp_dpcd_set_powered(p->aux, false);
 	gpiod_set_value_cansleep(p->enable_gpio, 0);
 	regulator_disable(p->supply);
 	p->unprepared_time = ktime_get_boottime();
@@ -469,6 +470,7 @@ static int panel_edp_prepare_once(struct panel_edp *p)
 	}
 
 	gpiod_set_value_cansleep(p->enable_gpio, 1);
+	drm_dp_dpcd_set_powered(p->aux, true);
 
 	p->powered_on_time = ktime_get_boottime();
 
@@ -507,6 +509,7 @@ static int panel_edp_prepare_once(struct panel_edp *p)
 	return 0;
 
 error:
+	drm_dp_dpcd_set_powered(p->aux, false);
 	gpiod_set_value_cansleep(p->enable_gpio, 0);
 	regulator_disable(p->supply);
 	p->unprepared_time = ktime_get_boottime();

drivers/gpu/drm/panel/panel-samsung-atna33xc20.c

@@ -72,6 +72,7 @@ static int atana33xc20_suspend(struct device *dev)
 	if (p->el3_was_on)
 		atana33xc20_wait(p->el_on3_off_time, 150);
 
+	drm_dp_dpcd_set_powered(p->aux, false);
 	ret = regulator_disable(p->supply);
 	if (ret)
 		return ret;
@@ -93,6 +94,7 @@ static int atana33xc20_resume(struct device *dev)
 	ret = regulator_enable(p->supply);
 	if (ret)
 		return ret;
+	drm_dp_dpcd_set_powered(p->aux, true);
 	p->powered_on_time = ktime_get_boottime();
 
 	if (p->no_hpd) {

drivers/gpu/drm/scheduler/sched_fence.c

@@ -33,9 +33,7 @@ static struct kmem_cache *sched_fence_slab;
 
 static int __init drm_sched_fence_slab_init(void)
 {
-	sched_fence_slab = kmem_cache_create(
-		"drm_sched_fence", sizeof(struct drm_sched_fence), 0,
-		SLAB_HWCACHE_ALIGN, NULL);
+	sched_fence_slab = KMEM_CACHE(drm_sched_fence, SLAB_HWCACHE_ALIGN);
 	if (!sched_fence_slab)
 		return -ENOMEM;
 

drivers/gpu/drm/sun4i/sun4i_hdmi_enc.c

@@ -30,19 +30,11 @@
 #include "sun4i_drv.h"
 #include "sun4i_hdmi.h"
 
-static inline struct sun4i_hdmi *
-drm_encoder_to_sun4i_hdmi(struct drm_encoder *encoder)
-{
-	return container_of(encoder, struct sun4i_hdmi,
-			    encoder);
-}
+#define drm_encoder_to_sun4i_hdmi(e)		\
+	container_of_const(e, struct sun4i_hdmi, encoder)
 
-static inline struct sun4i_hdmi *
-drm_connector_to_sun4i_hdmi(struct drm_connector *connector)
-{
-	return container_of(connector, struct sun4i_hdmi,
-			    connector);
-}
+#define drm_connector_to_sun4i_hdmi(c)		\
+	container_of_const(c, struct sun4i_hdmi, connector)
 
 static int sun4i_hdmi_setup_avi_infoframes(struct sun4i_hdmi *hdmi,
 					   struct drm_display_mode *mode)
@@ -70,19 +62,8 @@ static int sun4i_hdmi_setup_avi_infoframes(struct sun4i_hdmi *hdmi,
 	return 0;
 }
 
-static int sun4i_hdmi_atomic_check(struct drm_encoder *encoder,
-				   struct drm_crtc_state *crtc_state,
-				   struct drm_connector_state *conn_state)
-{
-	struct drm_display_mode *mode = &crtc_state->mode;
-
-	if (mode->flags & DRM_MODE_FLAG_DBLCLK)
-		return -EINVAL;
-
-	return 0;
-}
-
-static void sun4i_hdmi_disable(struct drm_encoder *encoder)
+static void sun4i_hdmi_disable(struct drm_encoder *encoder,
+			       struct drm_atomic_state *state)
 {
 	struct sun4i_hdmi *hdmi = drm_encoder_to_sun4i_hdmi(encoder);
 	u32 val;
@@ -96,37 +77,17 @@ static void sun4i_hdmi_disable(struct drm_encoder *encoder)
 	clk_disable_unprepare(hdmi->tmds_clk);
 }
 
-static void sun4i_hdmi_enable(struct drm_encoder *encoder)
+static void sun4i_hdmi_enable(struct drm_encoder *encoder,
+			      struct drm_atomic_state *state)
 {
 	struct drm_display_mode *mode = &encoder->crtc->state->adjusted_mode;
 	struct sun4i_hdmi *hdmi = drm_encoder_to_sun4i_hdmi(encoder);
 	struct drm_display_info *display = &hdmi->connector.display_info;
+	unsigned int x, y;
 	u32 val = 0;
 
 	DRM_DEBUG_DRIVER("Enabling the HDMI Output\n");
 
-	clk_prepare_enable(hdmi->tmds_clk);
-
-	sun4i_hdmi_setup_avi_infoframes(hdmi, mode);
-	val |= SUN4I_HDMI_PKT_CTRL_TYPE(0, SUN4I_HDMI_PKT_AVI);
-	val |= SUN4I_HDMI_PKT_CTRL_TYPE(1, SUN4I_HDMI_PKT_END);
-	writel(val, hdmi->base + SUN4I_HDMI_PKT_CTRL_REG(0));
-
-	val = SUN4I_HDMI_VID_CTRL_ENABLE;
-	if (display->is_hdmi)
-		val |= SUN4I_HDMI_VID_CTRL_HDMI_MODE;
-
-	writel(val, hdmi->base + SUN4I_HDMI_VID_CTRL_REG);
-}
-
-static void sun4i_hdmi_mode_set(struct drm_encoder *encoder,
-				struct drm_display_mode *mode,
-				struct drm_display_mode *adjusted_mode)
-{
-	struct sun4i_hdmi *hdmi = drm_encoder_to_sun4i_hdmi(encoder);
-	unsigned int x, y;
-	u32 val;
-
 	clk_set_rate(hdmi->mod_clk, mode->crtc_clock * 1000);
 	clk_set_rate(hdmi->tmds_clk, mode->crtc_clock * 1000);
 
@@ -178,34 +139,76 @@ static void sun4i_hdmi_mode_set(struct drm_encoder *encoder,
 		val |= SUN4I_HDMI_VID_TIMING_POL_VSYNC;
 
 	writel(val, hdmi->base + SUN4I_HDMI_VID_TIMING_POL_REG);
+
+	clk_prepare_enable(hdmi->tmds_clk);
+
+	sun4i_hdmi_setup_avi_infoframes(hdmi, mode);
+	val |= SUN4I_HDMI_PKT_CTRL_TYPE(0, SUN4I_HDMI_PKT_AVI);
+	val |= SUN4I_HDMI_PKT_CTRL_TYPE(1, SUN4I_HDMI_PKT_END);
+	writel(val, hdmi->base + SUN4I_HDMI_PKT_CTRL_REG(0));
+
+	val = SUN4I_HDMI_VID_CTRL_ENABLE;
+	if (display->is_hdmi)
+		val |= SUN4I_HDMI_VID_CTRL_HDMI_MODE;
+
+	writel(val, hdmi->base + SUN4I_HDMI_VID_CTRL_REG);
 }
 
-static enum drm_mode_status sun4i_hdmi_mode_valid(struct drm_encoder *encoder,
-					const struct drm_display_mode *mode)
+static const struct drm_encoder_helper_funcs sun4i_hdmi_helper_funcs = {
+	.atomic_disable	= sun4i_hdmi_disable,
+	.atomic_enable	= sun4i_hdmi_enable,
+};
+
+static enum drm_mode_status
+sun4i_hdmi_connector_clock_valid(const struct drm_connector *connector,
+				 const struct drm_display_mode *mode,
+				 unsigned long long clock)
 {
-	struct sun4i_hdmi *hdmi = drm_encoder_to_sun4i_hdmi(encoder);
-	unsigned long rate = mode->clock * 1000;
-	unsigned long diff = rate / 200; /* +-0.5% allowed by HDMI spec */
+	const struct sun4i_hdmi *hdmi = drm_connector_to_sun4i_hdmi(connector);
+	unsigned long diff = clock / 200; /* +-0.5% allowed by HDMI spec */
 	long rounded_rate;
 
+	if (mode->flags & DRM_MODE_FLAG_DBLCLK)
+		return MODE_BAD;
+
 	/* 165 MHz is the typical max pixelclock frequency for HDMI <= 1.2 */
-	if (rate > 165000000)
+	if (clock > 165000000)
 		return MODE_CLOCK_HIGH;
-	rounded_rate = clk_round_rate(hdmi->tmds_clk, rate);
+
+	rounded_rate = clk_round_rate(hdmi->tmds_clk, clock);
 	if (rounded_rate > 0 &&
-	    max_t(unsigned long, rounded_rate, rate) -
-	    min_t(unsigned long, rounded_rate, rate) < diff)
+	    max_t(unsigned long, rounded_rate, clock) -
+	    min_t(unsigned long, rounded_rate, clock) < diff)
 		return MODE_OK;
+
 	return MODE_NOCLOCK;
 }
 
-static const struct drm_encoder_helper_funcs sun4i_hdmi_helper_funcs = {
-	.atomic_check	= sun4i_hdmi_atomic_check,
-	.disable	= sun4i_hdmi_disable,
-	.enable		= sun4i_hdmi_enable,
-	.mode_set	= sun4i_hdmi_mode_set,
-	.mode_valid	= sun4i_hdmi_mode_valid,
-};
+static int sun4i_hdmi_connector_atomic_check(struct drm_connector *connector,
+					     struct drm_atomic_state *state)
+{
+	struct drm_connector_state *conn_state =
+		drm_atomic_get_new_connector_state(state, connector);
+	struct drm_crtc *crtc = conn_state->crtc;
+	struct drm_crtc_state *crtc_state = crtc->state;
+	struct drm_display_mode *mode = &crtc_state->adjusted_mode;
+	enum drm_mode_status status;
+
+	status = sun4i_hdmi_connector_clock_valid(connector, mode,
+						  mode->clock * 1000);
+	if (status != MODE_OK)
+		return -EINVAL;
+
+	return 0;
+}
+
+static enum drm_mode_status
+sun4i_hdmi_connector_mode_valid(struct drm_connector *connector,
+				struct drm_display_mode *mode)
+{
+	return sun4i_hdmi_connector_clock_valid(connector, mode,
+						mode->clock * 1000);
+}
 
 static int sun4i_hdmi_get_modes(struct drm_connector *connector)
 {
@@ -251,6 +254,8 @@ static struct i2c_adapter *sun4i_hdmi_get_ddc(struct device *dev)
 }
 
 static const struct drm_connector_helper_funcs sun4i_hdmi_connector_helper_funcs = {
+	.atomic_check	= sun4i_hdmi_connector_atomic_check,
+	.mode_valid	= sun4i_hdmi_connector_mode_valid,
 	.get_modes	= sun4i_hdmi_get_modes,
 };
 

drivers/gpu/drm/tegra/fb.c

@@ -159,6 +159,7 @@ struct drm_framebuffer *tegra_fb_create(struct drm_device *drm,
 
 		if (gem->size < size) {
 			err = -EINVAL;
+			drm_gem_object_put(gem);
 			goto unreference;
 		}
 

drivers/gpu/drm/tests/drm_connector_test.c

@@ -3,10 +3,175 @@
  * Kunit test for drm_modes functions
  */
 
+#include <linux/i2c.h>
+
+#include <drm/drm_atomic_state_helper.h>
 #include <drm/drm_connector.h>
+#include <drm/drm_drv.h>
+#include <drm/drm_kunit_helpers.h>
 
 #include <kunit/test.h>
 
+struct drm_connector_init_priv {
+	struct drm_device drm;
+	struct drm_connector connector;
+	struct i2c_adapter ddc;
+};
+
+static const struct drm_connector_funcs dummy_funcs = {
+	.atomic_destroy_state	= drm_atomic_helper_connector_destroy_state,
+	.atomic_duplicate_state	= drm_atomic_helper_connector_duplicate_state,
+	.reset			= drm_atomic_helper_connector_reset,
+};
+
+static int dummy_ddc_xfer(struct i2c_adapter *adapter,
+			  struct i2c_msg *msgs, int num)
+{
+	return num;
+}
+
+static u32 dummy_ddc_func(struct i2c_adapter *adapter)
+{
+	return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
+}
+
+static const struct i2c_algorithm dummy_ddc_algorithm = {
+	.master_xfer = dummy_ddc_xfer,
+	.functionality = dummy_ddc_func,
+};
+
+static void i2c_del_adapter_wrapper(void *ptr)
+{
+	struct i2c_adapter *adap = ptr;
+
+	i2c_del_adapter(adap);
+}
+
+static int drm_test_connector_init(struct kunit *test)
+{
+	struct drm_connector_init_priv *priv;
+	struct device *dev;
+	int ret;
+
+	dev = drm_kunit_helper_alloc_device(test);
+	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, dev);
+
+	priv = drm_kunit_helper_alloc_drm_device(test, dev,
+						 struct drm_connector_init_priv, drm,
+						 DRIVER_MODESET | DRIVER_ATOMIC);
+	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, priv);
+
+	strscpy(priv->ddc.name, "dummy-connector-ddc", sizeof(priv->ddc.name));
+	priv->ddc.owner = THIS_MODULE;
+	priv->ddc.algo = &dummy_ddc_algorithm;
+	priv->ddc.dev.parent = dev;
+
+	ret = i2c_add_adapter(&priv->ddc);
+	KUNIT_ASSERT_EQ(test, ret, 0);
+
+	ret = kunit_add_action_or_reset(test, i2c_del_adapter_wrapper, &priv->ddc);
+	KUNIT_ASSERT_EQ(test, ret, 0);
+
+	test->priv = priv;
+	return 0;
+}
+
+/*
+ * Test that the registration of a bog standard connector works as
+ * expected and doesn't report any error.
+ */
+static void drm_test_drmm_connector_init(struct kunit *test)
+{
+	struct drm_connector_init_priv *priv = test->priv;
+	int ret;
+
+	ret = drmm_connector_init(&priv->drm, &priv->connector,
+				  &dummy_funcs,
+				  DRM_MODE_CONNECTOR_HDMIA,
+				  &priv->ddc);
+	KUNIT_EXPECT_EQ(test, ret, 0);
+}
+
+/*
+ * Test that the registration of a connector without a DDC adapter
+ * doesn't report any error.
+ */
+static void drm_test_drmm_connector_init_null_ddc(struct kunit *test)
+{
+	struct drm_connector_init_priv *priv = test->priv;
+	int ret;
+
+	ret = drmm_connector_init(&priv->drm, &priv->connector,
+				  &dummy_funcs,
+				  DRM_MODE_CONNECTOR_HDMIA,
+				  NULL);
+	KUNIT_EXPECT_EQ(test, ret, 0);
+}
+
+/*
+ * Test that the registration of a connector succeeds for all possible
+ * connector types.
+ */
+static void drm_test_drmm_connector_init_type_valid(struct kunit *test)
+{
+	struct drm_connector_init_priv *priv = test->priv;
+	unsigned int connector_type = *(unsigned int *)test->param_value;
+	int ret;
+
+	ret = drmm_connector_init(&priv->drm, &priv->connector,
+				  &dummy_funcs,
+				  connector_type,
+				  &priv->ddc);
+	KUNIT_EXPECT_EQ(test, ret, 0);
+}
+
+static const unsigned int drm_connector_init_type_valid_tests[] = {
+	DRM_MODE_CONNECTOR_Unknown,
+	DRM_MODE_CONNECTOR_VGA,
+	DRM_MODE_CONNECTOR_DVII,
+	DRM_MODE_CONNECTOR_DVID,
+	DRM_MODE_CONNECTOR_DVIA,
+	DRM_MODE_CONNECTOR_Composite,
+	DRM_MODE_CONNECTOR_SVIDEO,
+	DRM_MODE_CONNECTOR_LVDS,
+	DRM_MODE_CONNECTOR_Component,
+	DRM_MODE_CONNECTOR_9PinDIN,
+	DRM_MODE_CONNECTOR_DisplayPort,
+	DRM_MODE_CONNECTOR_HDMIA,
+	DRM_MODE_CONNECTOR_HDMIB,
+	DRM_MODE_CONNECTOR_TV,
+	DRM_MODE_CONNECTOR_eDP,
+	DRM_MODE_CONNECTOR_VIRTUAL,
+	DRM_MODE_CONNECTOR_DSI,
+	DRM_MODE_CONNECTOR_DPI,
+	DRM_MODE_CONNECTOR_WRITEBACK,
+	DRM_MODE_CONNECTOR_SPI,
+	DRM_MODE_CONNECTOR_USB,
+};
+
+static void drm_connector_init_type_desc(const unsigned int *type, char *desc)
+{
+	sprintf(desc, "%s", drm_get_connector_type_name(*type));
+}
+
+KUNIT_ARRAY_PARAM(drm_connector_init_type_valid,
+		  drm_connector_init_type_valid_tests,
+		  drm_connector_init_type_desc);
+
+static struct kunit_case drmm_connector_init_tests[] = {
+	KUNIT_CASE(drm_test_drmm_connector_init),
+	KUNIT_CASE(drm_test_drmm_connector_init_null_ddc),
+	KUNIT_CASE_PARAM(drm_test_drmm_connector_init_type_valid,
+			 drm_connector_init_type_valid_gen_params),
+	{ }
+};
+
+static struct kunit_suite drmm_connector_init_test_suite = {
+	.name = "drmm_connector_init",
+	.init = drm_test_connector_init,
+	.test_cases = drmm_connector_init_tests,
+};
+
 struct drm_get_tv_mode_from_name_test {
 	const char *name;
 	enum drm_connector_tv_mode expected_mode;
@@ -70,7 +235,10 @@ static struct kunit_suite drm_get_tv_mode_from_name_test_suite = {
 	.test_cases = drm_get_tv_mode_from_name_tests,
 };
 
-kunit_test_suite(drm_get_tv_mode_from_name_test_suite);
+kunit_test_suites(
+	&drmm_connector_init_test_suite,
+	&drm_get_tv_mode_from_name_test_suite
+);
 
 MODULE_AUTHOR("Maxime Ripard <maxime@cerno.tech>");
 MODULE_LICENSE("GPL");

drivers/gpu/drm/tests/drm_kunit_helpers.c

 // SPDX-License-Identifier: GPL-2.0
 
 #include <drm/drm_atomic.h>
+#include <drm/drm_atomic_helper.h>
 #include <drm/drm_drv.h>
+#include <drm/drm_fourcc.h>
 #include <drm/drm_kunit_helpers.h>
 #include <drm/drm_managed.h>
 
@@ -14,6 +16,8 @@
 #define KUNIT_DEVICE_NAME	"drm-kunit-mock-device"
 
 static const struct drm_mode_config_funcs drm_mode_config_funcs = {
+	.atomic_check	= drm_atomic_helper_check,
+	.atomic_commit	= drm_atomic_helper_commit,
 };
 
 /**
@@ -161,5 +165,151 @@ drm_kunit_helper_atomic_state_alloc(struct kunit *test,
 }
 EXPORT_SYMBOL_GPL(drm_kunit_helper_atomic_state_alloc);
 
+static const uint32_t default_plane_formats[] = {
+	DRM_FORMAT_XRGB8888,
+};
+
+static const uint64_t default_plane_modifiers[] = {
+	DRM_FORMAT_MOD_LINEAR,
+	DRM_FORMAT_MOD_INVALID
+};
+
+static const struct drm_plane_helper_funcs default_plane_helper_funcs = {
+};
+
+static const struct drm_plane_funcs default_plane_funcs = {
+	.atomic_destroy_state	= drm_atomic_helper_plane_destroy_state,
+	.atomic_duplicate_state	= drm_atomic_helper_plane_duplicate_state,
+	.reset			= drm_atomic_helper_plane_reset,
+};
+
+/**
+ * drm_kunit_helper_create_primary_plane - Creates a mock primary plane for a KUnit test
+ * @test: The test context object
+ * @drm: The device to alloc the plane for
+ * @funcs: Callbacks for the new plane. Optional.
+ * @helper_funcs: Helpers callbacks for the new plane. Optional.
+ * @formats: array of supported formats (DRM_FORMAT\_\*). Optional.
+ * @num_formats: number of elements in @formats
+ * @modifiers: array of struct drm_format modifiers terminated by
+ *             DRM_FORMAT_MOD_INVALID. Optional.
+ *
+ * This allocates and initializes a mock struct &drm_plane meant to be
+ * part of a mock device for a KUnit test.
+ *
+ * Resources will be cleaned up automatically.
+ *
+ * @funcs will default to the default helpers implementations.
+ * @helper_funcs will default to an empty implementation. @formats will
+ * default to XRGB8888 only. @modifiers will default to a linear
+ * modifier only.
+ *
+ * Returns:
+ * A pointer to the new plane, or an ERR_PTR() otherwise.
+ */
+struct drm_plane *
+drm_kunit_helper_create_primary_plane(struct kunit *test,
+				      struct drm_device *drm,
+				      const struct drm_plane_funcs *funcs,
+				      const struct drm_plane_helper_funcs *helper_funcs,
+				      const uint32_t *formats,
+				      unsigned int num_formats,
+				      const uint64_t *modifiers)
+{
+	struct drm_plane *plane;
+
+	if (!funcs)
+		funcs = &default_plane_funcs;
+
+	if (!helper_funcs)
+		helper_funcs = &default_plane_helper_funcs;
+
+	if (!formats || !num_formats) {
+		formats = default_plane_formats;
+		num_formats = ARRAY_SIZE(default_plane_formats);
+	}
+
+	if (!modifiers)
+		modifiers = default_plane_modifiers;
+
+	plane = __drmm_universal_plane_alloc(drm,
+					     sizeof(struct drm_plane), 0,
+					     0,
+					     funcs,
+					     formats,
+					     num_formats,
+					     default_plane_modifiers,
+					     DRM_PLANE_TYPE_PRIMARY,
+					     NULL);
+	KUNIT_ASSERT_NOT_ERR_OR_NULL(test, plane);
+
+	drm_plane_helper_add(plane, helper_funcs);
+
+	return plane;
+}
+EXPORT_SYMBOL_GPL(drm_kunit_helper_create_primary_plane);
+
+static const struct drm_crtc_helper_funcs default_crtc_helper_funcs = {
+};
+
+static const struct drm_crtc_funcs default_crtc_funcs = {
+	.atomic_destroy_state   = drm_atomic_helper_crtc_destroy_state,
+	.atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
+	.reset                  = drm_atomic_helper_crtc_reset,
+};
+
+/**
+ * drm_kunit_helper_create_crtc - Creates a mock CRTC for a KUnit test
+ * @test: The test context object
+ * @drm: The device to alloc the plane for
+ * @primary: Primary plane for CRTC
+ * @cursor: Cursor plane for CRTC. Optional.
+ * @funcs: Callbacks for the new plane. Optional.
+ * @helper_funcs: Helpers callbacks for the new plane. Optional.
+ *
+ * This allocates and initializes a mock struct &drm_crtc meant to be
+ * part of a mock device for a KUnit test.
+ *
+ * Resources will be cleaned up automatically.
+ *
+ * @funcs will default to the default helpers implementations.
+ * @helper_funcs will default to an empty implementation.
+ *
+ * Returns:
+ * A pointer to the new CRTC, or an ERR_PTR() otherwise.
+ */
+struct drm_crtc *
+drm_kunit_helper_create_crtc(struct kunit *test,
+			     struct drm_device *drm,
+			     struct drm_plane *primary,
+			     struct drm_plane *cursor,
+			     const struct drm_crtc_funcs *funcs,
+			     const struct drm_crtc_helper_funcs *helper_funcs)
+{
+	struct drm_crtc *crtc;
+	int ret;
+
+	if (!funcs)
+		funcs = &default_crtc_funcs;
+
+	if (!helper_funcs)
+		helper_funcs = &default_crtc_helper_funcs;
+
+	crtc = drmm_kzalloc(drm, sizeof(*crtc), GFP_KERNEL);
+	KUNIT_ASSERT_NOT_NULL(test, crtc);
+
+	ret = drmm_crtc_init_with_planes(drm, crtc,
+					 primary,
+					 cursor,
+					 funcs,
+					 NULL);
+	KUNIT_ASSERT_EQ(test, ret, 0);
+
+	drm_crtc_helper_add(crtc, helper_funcs);
+
+	return crtc;
+}
+EXPORT_SYMBOL_GPL(drm_kunit_helper_create_crtc);
+
 MODULE_AUTHOR("Maxime Ripard <maxime@cerno.tech>");
 MODULE_LICENSE("GPL");

drivers/gpu/drm/tidss/tidss_crtc.c

@@ -265,6 +265,16 @@ static void tidss_crtc_atomic_disable(struct drm_crtc *crtc,
 
 	reinit_completion(&tcrtc->framedone_completion);
 
+	/*
+	 * If a layer is left enabled when the videoport is disabled, and the
+	 * vid pipeline that was used for the layer is taken into use on
+	 * another videoport, the DSS will report sync lost issues. Disable all
+	 * the layers here as a work-around.
+	 */
+	for (u32 layer = 0; layer < tidss->feat->num_planes; layer++)
+		dispc_ovr_enable_layer(tidss->dispc, tcrtc->hw_videoport, layer,
+				       false);
+
 	dispc_vp_disable(tidss->dispc, tcrtc->hw_videoport);
 
 	if (!wait_for_completion_timeout(&tcrtc->framedone_completion,

drivers/gpu/drm/tidss/tidss_plane.c

@@ -213,7 +213,7 @@ struct tidss_plane *tidss_plane_create(struct tidss_device *tidss,
 
 	drm_plane_helper_add(&tplane->plane, &tidss_plane_helper_funcs);
 
-	drm_plane_create_zpos_property(&tplane->plane, hw_plane_id, 0,
+	drm_plane_create_zpos_property(&tplane->plane, tidss->num_planes, 0,
 				       num_planes - 1);
 
 	ret = drm_plane_create_color_properties(&tplane->plane,

drivers/gpu/drm/v3d/v3d_bo.c

@@ -40,7 +40,7 @@ void v3d_free_object(struct drm_gem_object *obj)
 
 	mutex_lock(&v3d->bo_lock);
 	v3d->bo_stats.num_allocated--;
-	v3d->bo_stats.pages_allocated -= obj->size >> PAGE_SHIFT;
+	v3d->bo_stats.pages_allocated -= obj->size >> V3D_MMU_PAGE_SHIFT;
 	mutex_unlock(&v3d->bo_lock);
 
 	spin_lock(&v3d->mm_lock);
@@ -109,8 +109,8 @@ v3d_bo_create_finish(struct drm_gem_object *obj)
 	 * lifetime of the BO.
 	 */
 	ret = drm_mm_insert_node_generic(&v3d->mm, &bo->node,
-					 obj->size >> PAGE_SHIFT,
-					 GMP_GRANULARITY >> PAGE_SHIFT, 0, 0);
+					 obj->size >> V3D_MMU_PAGE_SHIFT,
+					 GMP_GRANULARITY >> V3D_MMU_PAGE_SHIFT, 0, 0);
 	spin_unlock(&v3d->mm_lock);
 	if (ret)
 		return ret;
@@ -118,7 +118,7 @@ v3d_bo_create_finish(struct drm_gem_object *obj)
 	/* Track stats for /debug/dri/n/bo_stats. */
 	mutex_lock(&v3d->bo_lock);
 	v3d->bo_stats.num_allocated++;
-	v3d->bo_stats.pages_allocated += obj->size >> PAGE_SHIFT;
+	v3d->bo_stats.pages_allocated += obj->size >> V3D_MMU_PAGE_SHIFT;
 	mutex_unlock(&v3d->bo_lock);
 
 	v3d_mmu_insert_ptes(bo);
@@ -201,7 +201,7 @@ int v3d_create_bo_ioctl(struct drm_device *dev, void *data,
 	if (IS_ERR(bo))
 		return PTR_ERR(bo);
 
-	args->offset = bo->node.start << PAGE_SHIFT;
+	args->offset = bo->node.start << V3D_MMU_PAGE_SHIFT;
 
 	ret = drm_gem_handle_create(file_priv, &bo->base.base, &args->handle);
 	drm_gem_object_put(&bo->base.base);
@@ -246,7 +246,7 @@ int v3d_get_bo_offset_ioctl(struct drm_device *dev, void *data,
 	}
 	bo = to_v3d_bo(gem_obj);
 
-	args->offset = bo->node.start << PAGE_SHIFT;
+	args->offset = bo->node.start << V3D_MMU_PAGE_SHIFT;
 
 	drm_gem_object_put(gem_obj);
 	return 0;

drivers/gpu/drm/v3d/v3d_debugfs.c

@@ -219,7 +219,7 @@ static int v3d_debugfs_bo_stats(struct seq_file *m, void *unused)
 	seq_printf(m, "allocated bos:          %d\n",
 		   v3d->bo_stats.num_allocated);
 	seq_printf(m, "allocated bo size (kb): %ld\n",
-		   (long)v3d->bo_stats.pages_allocated << (PAGE_SHIFT - 10));
+		   (long)v3d->bo_stats.pages_allocated << (V3D_MMU_PAGE_SHIFT - 10));
 	mutex_unlock(&v3d->bo_lock);
 
 	return 0;

drivers/gpu/drm/v3d/v3d_drv.h

@@ -19,6 +19,8 @@ struct reset_control;
 
 #define GMP_GRANULARITY (128 * 1024)
 
+#define V3D_MMU_PAGE_SHIFT 12
+
 #define V3D_MAX_QUEUES (V3D_CPU + 1)
 
 static inline char *v3d_queue_to_string(enum v3d_queue queue)

drivers/gpu/drm/v3d/v3d_irq.c

@@ -70,7 +70,7 @@ v3d_overflow_mem_work(struct work_struct *work)
 	list_add_tail(&bo->unref_head, &v3d->bin_job->render->unref_list);
 	spin_unlock_irqrestore(&v3d->job_lock, irqflags);
 
-	V3D_CORE_WRITE(0, V3D_PTB_BPOA, bo->node.start << PAGE_SHIFT);
+	V3D_CORE_WRITE(0, V3D_PTB_BPOA, bo->node.start << V3D_MMU_PAGE_SHIFT);
 	V3D_CORE_WRITE(0, V3D_PTB_BPOS, obj->size);
 
 out:

drivers/gpu/drm/v3d/v3d_mmu.c

@@ -21,8 +21,6 @@
 #include "v3d_drv.h"
 #include "v3d_regs.h"
 
-#define V3D_MMU_PAGE_SHIFT 12
-
 /* Note: All PTEs for the 1MB superpage must be filled with the
  * superpage bit set.
  */

drivers/staging/fbtft/fb_ssd1351.c

 // SPDX-License-Identifier: GPL-2.0
+
+#include <linux/backlight.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>

drivers/video/backlight/corgi_lcd.c

@@ -11,6 +11,7 @@
  *	by Eric Miao <eric.miao@marvell.com>
  */
 
+#include <linux/backlight.h>
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/init.h>

include/drm/display/drm_dp_helper.h

@@ -100,6 +100,8 @@ struct drm_dp_vsc_sdp {
 
 void drm_dp_vsc_sdp_log(struct drm_printer *p, const struct drm_dp_vsc_sdp *vsc);
 
+bool drm_dp_vsc_sdp_supported(struct drm_dp_aux *aux, const u8 dpcd[DP_RECEIVER_CAP_SIZE]);
+
 int drm_dp_psr_setup_time(const u8 psr_cap[EDP_PSR_RECEIVER_CAP_SIZE]);
 
 static inline int
@@ -462,9 +464,15 @@ struct drm_dp_aux {
 	 * @is_remote: Is this AUX CH actually using sideband messaging.
 	 */
 	bool is_remote;
+
+	/**
+	 * @powered_down: If true then the remote endpoint is powered down.
+	 */
+	bool powered_down;
 };
 
 int drm_dp_dpcd_probe(struct drm_dp_aux *aux, unsigned int offset);
+void drm_dp_dpcd_set_powered(struct drm_dp_aux *aux, bool powered);
 ssize_t drm_dp_dpcd_read(struct drm_dp_aux *aux, unsigned int offset,
 			 void *buffer, size_t size);
 ssize_t drm_dp_dpcd_write(struct drm_dp_aux *aux, unsigned int offset,
@@ -813,4 +821,6 @@ int drm_dp_bw_overhead(int lane_count, int hactive,
 int drm_dp_bw_channel_coding_efficiency(bool is_uhbr);
 int drm_dp_max_dprx_data_rate(int max_link_rate, int max_lanes);
 
+ssize_t drm_dp_vsc_sdp_pack(const struct drm_dp_vsc_sdp *vsc, struct dp_sdp *sdp);
+
 #endif /* _DRM_DP_HELPER_H_ */

include/drm/drm_kunit_helpers.h

@@ -3,11 +3,17 @@
 #ifndef DRM_KUNIT_HELPERS_H_
 #define DRM_KUNIT_HELPERS_H_
 
+#include <drm/drm_drv.h>
+
 #include <linux/device.h>
 
 #include <kunit/test.h>
 
+struct drm_crtc_funcs;
+struct drm_crtc_helper_funcs;
 struct drm_device;
+struct drm_plane_funcs;
+struct drm_plane_helper_funcs;
 struct kunit;
 
 struct device *drm_kunit_helper_alloc_device(struct kunit *test);
@@ -97,4 +103,21 @@ drm_kunit_helper_atomic_state_alloc(struct kunit *test,
 				    struct drm_device *drm,
 				    struct drm_modeset_acquire_ctx *ctx);
 
+struct drm_plane *
+drm_kunit_helper_create_primary_plane(struct kunit *test,
+				      struct drm_device *drm,
+				      const struct drm_plane_funcs *funcs,
+				      const struct drm_plane_helper_funcs *helper_funcs,
+				      const uint32_t *formats,
+				      unsigned int num_formats,
+				      const uint64_t *modifiers);
+
+struct drm_crtc *
+drm_kunit_helper_create_crtc(struct kunit *test,
+			     struct drm_device *drm,
+			     struct drm_plane *primary,
+			     struct drm_plane *cursor,
+			     const struct drm_crtc_funcs *funcs,
+			     const struct drm_crtc_helper_funcs *helper_funcs);
+
 #endif // DRM_KUNIT_HELPERS_H_

include/linux/fb.h

@@ -2,28 +2,30 @@
 #ifndef _LINUX_FB_H
 #define _LINUX_FB_H
 
-#include <linux/refcount.h>
-#include <linux/kgdb.h>
 #include <uapi/linux/fb.h>
 
 #define FBIO_CURSOR            _IOWR('F', 0x08, struct fb_cursor_user)
 
-#include <linux/fs.h>
-#include <linux/init.h>
+#include <linux/mutex.h>
+#include <linux/printk.h>
+#include <linux/refcount.h>
+#include <linux/types.h>
 #include <linux/workqueue.h>
-#include <linux/notifier.h>
-#include <linux/list.h>
-#include <linux/backlight.h>
-#include <linux/slab.h>
 
 #include <asm/fb.h>
 
-struct vm_area_struct;
-struct fb_info;
+struct backlight_device;
 struct device;
+struct device_node;
+struct fb_info;
 struct file;
+struct i2c_adapter;
+struct inode;
+struct module;
+struct notifier_block;
+struct page;
 struct videomode;
-struct device_node;
+struct vm_area_struct;
 
 /* Definitions below are used in the parsed monitor specs */
 #define FB_DPMS_ACTIVE_OFF	1

tools/edid/1024x768.S

-/*
-   1024x768.S: EDID data set for standard 1024x768 60 Hz monitor
-
-   Copyright (C) 2011 Carsten Emde <C.Emde@osadl.org>
-
-   This program is free software; you can redistribute it and/or
-   modify it under the terms of the GNU General Public License
-   as published by the Free Software Foundation; either version 2
-   of the License, or (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA.
-*/
-
-/* EDID */
-#define VERSION 1
-#define REVISION 3
-
-/* Display */
-#define CLOCK 65000 /* kHz */
-#define XPIX 1024
-#define YPIX 768
-#define XY_RATIO XY_RATIO_4_3
-#define XBLANK 320
-#define YBLANK 38
-#define XOFFSET 8
-#define XPULSE 144
-#define YOFFSET 3
-#define YPULSE 6
-#define DPI 72
-#define VFREQ 60 /* Hz */
-#define TIMING_NAME "Linux XGA"
-#define ESTABLISHED_TIMING2_BITS 0x08 /* Bit 3 -> 1024x768 @60 Hz */
-#define HSYNC_POL 0
-#define VSYNC_POL 0
-
-#include "edid.S"

tools/edid/1280x1024.S

-/*
-   1280x1024.S: EDID data set for standard 1280x1024 60 Hz monitor
-
-   Copyright (C) 2011 Carsten Emde <C.Emde@osadl.org>
-
-   This program is free software; you can redistribute it and/or
-   modify it under the terms of the GNU General Public License
-   as published by the Free Software Foundation; either version 2
-   of the License, or (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA.
-*/
-
-/* EDID */
-#define VERSION 1
-#define REVISION 3
-
-/* Display */
-#define CLOCK 108000 /* kHz */
-#define XPIX 1280
-#define YPIX 1024
-#define XY_RATIO XY_RATIO_5_4
-#define XBLANK 408
-#define YBLANK 42
-#define XOFFSET 48
-#define XPULSE 112
-#define YOFFSET 1
-#define YPULSE 3
-#define DPI 72
-#define VFREQ 60 /* Hz */
-#define TIMING_NAME "Linux SXGA"
-/* No ESTABLISHED_TIMINGx_BITS */
-#define HSYNC_POL 1
-#define VSYNC_POL 1
-
-#include "edid.S"

tools/edid/1600x1200.S

-/*
-   1600x1200.S: EDID data set for standard 1600x1200 60 Hz monitor
-
-   Copyright (C) 2013 Carsten Emde <C.Emde@osadl.org>
-
-   This program is free software; you can redistribute it and/or
-   modify it under the terms of the GNU General Public License
-   as published by the Free Software Foundation; either version 2
-   of the License, or (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA.
-*/
-
-/* EDID */
-#define VERSION 1
-#define REVISION 3
-
-/* Display */
-#define CLOCK 162000 /* kHz */
-#define XPIX 1600
-#define YPIX 1200
-#define XY_RATIO XY_RATIO_4_3
-#define XBLANK 560
-#define YBLANK 50
-#define XOFFSET 64
-#define XPULSE 192
-#define YOFFSET 1
-#define YPULSE 3
-#define DPI 72
-#define VFREQ 60 /* Hz */
-#define TIMING_NAME "Linux UXGA"
-/* No ESTABLISHED_TIMINGx_BITS */
-#define HSYNC_POL 1
-#define VSYNC_POL 1
-
-#include "edid.S"

tools/edid/1680x1050.S

-/*
-   1680x1050.S: EDID data set for standard 1680x1050 60 Hz monitor
-
-   Copyright (C) 2012 Carsten Emde <C.Emde@osadl.org>
-
-   This program is free software; you can redistribute it and/or
-   modify it under the terms of the GNU General Public License
-   as published by the Free Software Foundation; either version 2
-   of the License, or (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA.
-*/
-
-/* EDID */
-#define VERSION 1
-#define REVISION 3
-
-/* Display */
-#define CLOCK 146250 /* kHz */
-#define XPIX 1680
-#define YPIX 1050
-#define XY_RATIO XY_RATIO_16_10
-#define XBLANK 560
-#define YBLANK 39
-#define XOFFSET 104
-#define XPULSE 176
-#define YOFFSET 3
-#define YPULSE 6
-#define DPI 96
-#define VFREQ 60 /* Hz */
-#define TIMING_NAME "Linux WSXGA"
-/* No ESTABLISHED_TIMINGx_BITS */
-#define HSYNC_POL 1
-#define VSYNC_POL 1
-
-#include "edid.S"

tools/edid/1920x1080.S

-/*
-   1920x1080.S: EDID data set for standard 1920x1080 60 Hz monitor
-
-   Copyright (C) 2012 Carsten Emde <C.Emde@osadl.org>
-
-   This program is free software; you can redistribute it and/or
-   modify it under the terms of the GNU General Public License
-   as published by the Free Software Foundation; either version 2
-   of the License, or (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA.
-*/
-
-/* EDID */
-#define VERSION 1
-#define REVISION 3
-
-/* Display */
-#define CLOCK 148500 /* kHz */
-#define XPIX 1920
-#define YPIX 1080
-#define XY_RATIO XY_RATIO_16_9
-#define XBLANK 280
-#define YBLANK 45
-#define XOFFSET 88
-#define XPULSE 44
-#define YOFFSET 4
-#define YPULSE 5
-#define DPI 96
-#define VFREQ 60 /* Hz */
-#define TIMING_NAME "Linux FHD"
-/* No ESTABLISHED_TIMINGx_BITS */
-#define HSYNC_POL 1
-#define VSYNC_POL 1
-
-#include "edid.S"

tools/edid/800x600.S

-/*
-   800x600.S: EDID data set for standard 800x600 60 Hz monitor
-
-   Copyright (C) 2011 Carsten Emde <C.Emde@osadl.org>
-   Copyright (C) 2014 Linaro Limited
-
-   This program is free software; you can redistribute it and/or
-   modify it under the terms of the GNU General Public License
-   as published by the Free Software Foundation; either version 2
-   of the License, or (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-*/
-
-/* EDID */
-#define VERSION 1
-#define REVISION 3
-
-/* Display */
-#define CLOCK 40000 /* kHz */
-#define XPIX 800
-#define YPIX 600
-#define XY_RATIO XY_RATIO_4_3
-#define XBLANK 256
-#define YBLANK 28
-#define XOFFSET 40
-#define XPULSE 128
-#define YOFFSET 1
-#define YPULSE 4
-#define DPI 72
-#define VFREQ 60 /* Hz */
-#define TIMING_NAME "Linux SVGA"
-#define ESTABLISHED_TIMING1_BITS 0x01 /* Bit 0: 800x600 @ 60Hz */
-#define HSYNC_POL 1
-#define VSYNC_POL 1
-
-#include "edid.S"

tools/edid/Makefile

-
-SOURCES	:= $(wildcard [0-9]*x[0-9]*.S)
-
-BIN	:= $(patsubst %.S, %.bin, $(SOURCES))
-
-IHEX	:= $(patsubst %.S, %.bin.ihex, $(SOURCES))
-
-CODE	:= $(patsubst %.S, %.c, $(SOURCES))
-
-all:	$(BIN) $(IHEX) $(CODE)
-
-clean:
-	@rm -f *.o *.bin.ihex *.bin *.c
-
-%.o:	%.S
-	@cc -c $^
-
-%.bin.nocrc:	%.o
-	@objcopy -Obinary $^ $@
-
-%.crc:	%.bin.nocrc
-	@list=$$(for i in `seq 1 127`; do head -c$$i $^ | tail -c1 \
-		| hexdump -v -e '/1 "%02X+"'; done); \
-		echo "ibase=16;100-($${list%?})%100" | bc >$@
-
-%.p:	%.crc %.S
-	@cc -c -DCRC="$$(cat $*.crc)" -o $@ $*.S
-
-%.bin:	%.p
-	@objcopy -Obinary $^ $@
-
-%.bin.ihex:	%.p
-	@objcopy -Oihex $^ $@
-	@dos2unix $@ 2>/dev/null
-
-%.c:	%.bin
-	@echo "{" >$@; hexdump -f hex $^ >>$@; echo "};" >>$@

tools/edid/edid.S

-/*
-   edid.S: EDID data template
-
-   Copyright (C) 2012 Carsten Emde <C.Emde@osadl.org>
-
-   This program is free software; you can redistribute it and/or
-   modify it under the terms of the GNU General Public License
-   as published by the Free Software Foundation; either version 2
-   of the License, or (at your option) any later version.
-
-   This program is distributed in the hope that it will be useful,
-   but WITHOUT ANY WARRANTY; without even the implied warranty of
-   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-   GNU General Public License for more details.
-
-   You should have received a copy of the GNU General Public License
-   along with this program; if not, write to the Free Software
-   Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA.
-*/
-
-
-/* Manufacturer */
-#define MFG_LNX1 'L'
-#define MFG_LNX2 'N'
-#define MFG_LNX3 'X'
-#define SERIAL 0
-#define YEAR 2012
-#define WEEK 5
-
-/* EDID 1.3 standard definitions */
-#define XY_RATIO_16_10	0b00
-#define XY_RATIO_4_3	0b01
-#define XY_RATIO_5_4	0b10
-#define XY_RATIO_16_9	0b11
-
-/* Provide defaults for the timing bits */
-#ifndef ESTABLISHED_TIMING1_BITS
-#define ESTABLISHED_TIMING1_BITS 0x00
-#endif
-#ifndef ESTABLISHED_TIMING2_BITS
-#define ESTABLISHED_TIMING2_BITS 0x00
-#endif
-#ifndef ESTABLISHED_TIMING3_BITS
-#define ESTABLISHED_TIMING3_BITS 0x00
-#endif
-
-#define mfgname2id(v1,v2,v3) \
-	((((v1-'@')&0x1f)<<10)+(((v2-'@')&0x1f)<<5)+((v3-'@')&0x1f))
-#define swap16(v1) ((v1>>8)+((v1&0xff)<<8))
-#define lsbs2(v1,v2) (((v1&0x0f)<<4)+(v2&0x0f))
-#define msbs2(v1,v2) ((((v1>>8)&0x0f)<<4)+((v2>>8)&0x0f))
-#define msbs4(v1,v2,v3,v4) \
-	((((v1>>8)&0x03)<<6)+(((v2>>8)&0x03)<<4)+\
-	(((v3>>4)&0x03)<<2)+((v4>>4)&0x03))
-#define pixdpi2mm(pix,dpi) ((pix*25)/dpi)
-#define xsize pixdpi2mm(XPIX,DPI)
-#define ysize pixdpi2mm(YPIX,DPI)
-
-		.data
-
-/* Fixed header pattern */
-header:		.byte	0x00,0xff,0xff,0xff,0xff,0xff,0xff,0x00
-
-mfg_id:		.hword	swap16(mfgname2id(MFG_LNX1, MFG_LNX2, MFG_LNX3))
-
-prod_code:	.hword	0
-
-/* Serial number. 32 bits, little endian. */
-serial_number:	.long	SERIAL
-
-/* Week of manufacture */
-week:		.byte	WEEK
-
-/* Year of manufacture, less 1990. (1990-2245)
-   If week=255, it is the model year instead */
-year:		.byte	YEAR-1990
-
-version:	.byte	VERSION 	/* EDID version, usually 1 (for 1.3) */
-revision:	.byte	REVISION	/* EDID revision, usually 3 (for 1.3) */
-
-/* If Bit 7=1	Digital input. If set, the following bit definitions apply:
-     Bits 6-1	Reserved, must be 0
-     Bit 0	Signal is compatible with VESA DFP 1.x TMDS CRGB,
-		  1 pixel per clock, up to 8 bits per color, MSB aligned,
-   If Bit 7=0	Analog input. If clear, the following bit definitions apply:
-     Bits 6-5	Video white and sync levels, relative to blank
-		  00=+0.7/-0.3 V; 01=+0.714/-0.286 V;
-		  10=+1.0/-0.4 V; 11=+0.7/0 V
-   Bit 4	Blank-to-black setup (pedestal) expected
-   Bit 3	Separate sync supported
-   Bit 2	Composite sync (on HSync) supported
-   Bit 1	Sync on green supported
-   Bit 0	VSync pulse must be serrated when somposite or
-		  sync-on-green is used. */
-video_parms:	.byte	0x6d
-
-/* Maximum horizontal image size, in centimetres
-   (max 292 cm/115 in at 16:9 aspect ratio) */
-max_hor_size:	.byte	xsize/10
-
-/* Maximum vertical image size, in centimetres.
-   If either byte is 0, undefined (e.g. projector) */
-max_vert_size:	.byte	ysize/10
-
-/* Display gamma, minus 1, times 100 (range 1.00-3.5 */
-gamma:		.byte	120
-
-/* Bit 7	DPMS standby supported
-   Bit 6	DPMS suspend supported
-   Bit 5	DPMS active-off supported
-   Bits 4-3	Display type: 00=monochrome; 01=RGB colour;
-		  10=non-RGB multicolour; 11=undefined
-   Bit 2	Standard sRGB colour space. Bytes 25-34 must contain
-		  sRGB standard values.
-   Bit 1	Preferred timing mode specified in descriptor block 1.
-   Bit 0	GTF supported with default parameter values. */
-dsp_features:	.byte	0xea
-
-/* Chromaticity coordinates. */
-/* Red and green least-significant bits
-   Bits 7-6	Red x value least-significant 2 bits
-   Bits 5-4	Red y value least-significant 2 bits
-   Bits 3-2	Green x value lst-significant 2 bits
-   Bits 1-0	Green y value least-significant 2 bits */
-red_green_lsb:	.byte	0x5e
-
-/* Blue and white least-significant 2 bits */
-blue_white_lsb:	.byte	0xc0
-
-/* Red x value most significant 8 bits.
-   0-255 encodes 0-0.996 (255/256); 0-0.999 (1023/1024) with lsbits */
-red_x_msb:	.byte	0xa4
-
-/* Red y value most significant 8 bits */
-red_y_msb:	.byte	0x59
-
-/* Green x and y value most significant 8 bits */
-green_x_y_msb:	.byte	0x4a,0x98
-
-/* Blue x and y value most significant 8 bits */
-blue_x_y_msb:	.byte	0x25,0x20
-
-/* Default white point x and y value most significant 8 bits */
-white_x_y_msb:	.byte	0x50,0x54
-
-/* Established timings */
-/* Bit 7	720x400 @ 70 Hz
-   Bit 6	720x400 @ 88 Hz
-   Bit 5	640x480 @ 60 Hz
-   Bit 4	640x480 @ 67 Hz
-   Bit 3	640x480 @ 72 Hz
-   Bit 2	640x480 @ 75 Hz
-   Bit 1	800x600 @ 56 Hz
-   Bit 0	800x600 @ 60 Hz */
-estbl_timing1:	.byte	ESTABLISHED_TIMING1_BITS
-
-/* Bit 7	800x600 @ 72 Hz
-   Bit 6	800x600 @ 75 Hz
-   Bit 5	832x624 @ 75 Hz
-   Bit 4	1024x768 @ 87 Hz, interlaced (1024x768)
-   Bit 3	1024x768 @ 60 Hz
-   Bit 2	1024x768 @ 72 Hz
-   Bit 1	1024x768 @ 75 Hz
-   Bit 0	1280x1024 @ 75 Hz */
-estbl_timing2:	.byte	ESTABLISHED_TIMING2_BITS
-
-/* Bit 7	1152x870 @ 75 Hz (Apple Macintosh II)
-   Bits 6-0 	Other manufacturer-specific display mod */
-estbl_timing3:	.byte	ESTABLISHED_TIMING3_BITS
-
-/* Standard timing */
-/* X resolution, less 31, divided by 8 (256-2288 pixels) */
-std_xres:	.byte	(XPIX/8)-31
-/* Y resolution, X:Y pixel ratio
-   Bits 7-6	X:Y pixel ratio: 00=16:10; 01=4:3; 10=5:4; 11=16:9.
-   Bits 5-0	Vertical frequency, less 60 (60-123 Hz) */
-std_vres:	.byte	(XY_RATIO<<6)+VFREQ-60
-		.fill	7,2,0x0101	/* Unused */
-
-descriptor1:
-/* Pixel clock in 10 kHz units. (0.-655.35 MHz, little-endian) */
-clock:		.hword	CLOCK/10
-
-/* Horizontal active pixels 8 lsbits (0-4095) */
-x_act_lsb:	.byte	XPIX&0xff
-/* Horizontal blanking pixels 8 lsbits (0-4095)
-   End of active to start of next active. */
-x_blk_lsb:	.byte	XBLANK&0xff
-/* Bits 7-4 	Horizontal active pixels 4 msbits
-   Bits 3-0	Horizontal blanking pixels 4 msbits */
-x_msbs:		.byte	msbs2(XPIX,XBLANK)
-
-/* Vertical active lines 8 lsbits (0-4095) */
-y_act_lsb:	.byte	YPIX&0xff
-/* Vertical blanking lines 8 lsbits (0-4095) */
-y_blk_lsb:	.byte	YBLANK&0xff
-/* Bits 7-4 	Vertical active lines 4 msbits
-   Bits 3-0 	Vertical blanking lines 4 msbits */
-y_msbs:		.byte	msbs2(YPIX,YBLANK)
-
-/* Horizontal sync offset pixels 8 lsbits (0-1023) From blanking start */
-x_snc_off_lsb:	.byte	XOFFSET&0xff
-/* Horizontal sync pulse width pixels 8 lsbits (0-1023) */
-x_snc_pls_lsb:	.byte	XPULSE&0xff
-/* Bits 7-4 	Vertical sync offset lines 4 lsbits (0-63)
-   Bits 3-0 	Vertical sync pulse width lines 4 lsbits (0-63) */
-y_snc_lsb:	.byte	lsbs2(YOFFSET, YPULSE)
-/* Bits 7-6 	Horizontal sync offset pixels 2 msbits
-   Bits 5-4 	Horizontal sync pulse width pixels 2 msbits
-   Bits 3-2 	Vertical sync offset lines 2 msbits
-   Bits 1-0 	Vertical sync pulse width lines 2 msbits */
-xy_snc_msbs:	.byte	msbs4(XOFFSET,XPULSE,YOFFSET,YPULSE)
-
-/* Horizontal display size, mm, 8 lsbits (0-4095 mm, 161 in) */
-x_dsp_size:	.byte	xsize&0xff
-
-/* Vertical display size, mm, 8 lsbits (0-4095 mm, 161 in) */
-y_dsp_size:	.byte	ysize&0xff
-
-/* Bits 7-4 	Horizontal display size, mm, 4 msbits
-   Bits 3-0 	Vertical display size, mm, 4 msbits */
-dsp_size_mbsb:	.byte	msbs2(xsize,ysize)
-
-/* Horizontal border pixels (each side; total is twice this) */
-x_border:	.byte	0
-/* Vertical border lines (each side; total is twice this) */
-y_border:	.byte	0
-
-/* Bit 7 	Interlaced
-   Bits 6-5 	Stereo mode: 00=No stereo; other values depend on bit 0:
-   Bit 0=0: 01=Field sequential, sync=1 during right; 10=similar,
-     sync=1 during left; 11=4-way interleaved stereo
-   Bit 0=1 2-way interleaved stereo: 01=Right image on even lines;
-     10=Left image on even lines; 11=side-by-side
-   Bits 4-3 	Sync type: 00=Analog composite; 01=Bipolar analog composite;
-     10=Digital composite (on HSync); 11=Digital separate
-   Bit 2 	If digital separate: Vertical sync polarity (1=positive)
-   Other types: VSync serrated (HSync during VSync)
-   Bit 1 	If analog sync: Sync on all 3 RGB lines (else green only)
-   Digital: HSync polarity (1=positive)
-   Bit 0 	2-way line-interleaved stereo, if bits 4-3 are not 00. */
-features:	.byte	0x18+(VSYNC_POL<<2)+(HSYNC_POL<<1)
-
-descriptor2:	.byte	0,0	/* Not a detailed timing descriptor */
-		.byte	0	/* Must be zero */
-		.byte	0xff	/* Descriptor is monitor serial number (text) */
-		.byte	0	/* Must be zero */
-start1:		.ascii	"Linux #0"
-end1:		.byte	0x0a	/* End marker */
-		.fill	12-(end1-start1), 1, 0x20 /* Padded spaces */
-descriptor3:	.byte	0,0	/* Not a detailed timing descriptor */
-		.byte	0	/* Must be zero */
-		.byte	0xfd	/* Descriptor is monitor range limits */
-		.byte	0	/* Must be zero */
-start2:		.byte	VFREQ-1	/* Minimum vertical field rate (1-255 Hz) */
-		.byte	VFREQ+1	/* Maximum vertical field rate (1-255 Hz) */
-		.byte	(CLOCK/(XPIX+XBLANK))-1 /* Minimum horizontal line rate
-						    (1-255 kHz) */
-		.byte	(CLOCK/(XPIX+XBLANK))+1 /* Maximum horizontal line rate
-						    (1-255 kHz) */
-		.byte	(CLOCK/10000)+1	/* Maximum pixel clock rate, rounded up
-					   to 10 MHz multiple (10-2550 MHz) */
-		.byte	0	/* No extended timing information type */
-end2:		.byte	0x0a	/* End marker */
-		.fill	12-(end2-start2), 1, 0x20 /* Padded spaces */
-descriptor4:	.byte	0,0	/* Not a detailed timing descriptor */
-		.byte	0	/* Must be zero */
-		.byte	0xfc	/* Descriptor is text */
-		.byte	0	/* Must be zero */
-start3:		.ascii	TIMING_NAME
-end3:		.byte	0x0a	/* End marker */
-		.fill	12-(end3-start3), 1, 0x20 /* Padded spaces */
-extensions:	.byte	0	/* Number of extensions to follow */
-checksum:	.byte	CRC	/* Sum of all bytes must be 0 */

tools/edid/hex

-"\t" 8/1 "0x%02x, " "\n"