V4L/DVB: cx25840/ivtv: replace ugly priv control with s_config

The cx25840 used a private control CX25840_CID_ENABLE_PVR150_WORKAROUND
to be told whether to enable a workaround for certain pvr150 cards.

This is really config data that it needs to get at load time.

Implemented this in cx25840 and ivtv.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

drivers/media/video/cx25840/cx25840-core.c

@@ -1127,11 +1127,6 @@ static int cx25840_s_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
 	struct i2c_client *client = v4l2_get_subdevdata(sd);
 
 	switch (ctrl->id) {
-	case CX25840_CID_ENABLE_PVR150_WORKAROUND:
-		state->pvr150_workaround = ctrl->value;
-		set_input(client, state->vid_input, state->aud_input);
-		break;
-
 	case V4L2_CID_BRIGHTNESS:
 		if (ctrl->value < 0 || ctrl->value > 255) {
 			v4l_err(client, "invalid brightness setting %d\n",
@@ -1194,9 +1189,6 @@ static int cx25840_g_ctrl(struct v4l2_subdev *sd, struct v4l2_control *ctrl)
 	struct i2c_client *client = v4l2_get_subdevdata(sd);
 
 	switch (ctrl->id) {
-	case CX25840_CID_ENABLE_PVR150_WORKAROUND:
-		ctrl->value = state->pvr150_workaround;
-		break;
 	case V4L2_CID_BRIGHTNESS:
 		ctrl->value = (s8)cx25840_read(client, 0x414) + 128;
 		break;
@@ -1792,6 +1784,20 @@ static int cx25840_log_status(struct v4l2_subdev *sd)
 	return 0;
 }
 
+static int cx25840_s_config(struct v4l2_subdev *sd, int irq, void *platform_data)
+{
+	struct cx25840_state *state = to_state(sd);
+	struct i2c_client *client = v4l2_get_subdevdata(sd);
+
+	if (platform_data) {
+		struct cx25840_platform_data *pdata = platform_data;
+
+		state->pvr150_workaround = pdata->pvr150_workaround;
+		set_input(client, state->vid_input, state->aud_input);
+	}
+	return 0;
+}
+
 static int cx23885_irq_handler(struct v4l2_subdev *sd, u32 status,
 			       bool *handled)
 {
@@ -1879,6 +1885,7 @@ static int cx25840_irq_handler(struct v4l2_subdev *sd, u32 status,
 
 static const struct v4l2_subdev_core_ops cx25840_core_ops = {
 	.log_status = cx25840_log_status,
+	.s_config = cx25840_s_config,
 	.g_chip_ident = cx25840_g_chip_ident,
 	.g_ctrl = cx25840_g_ctrl,
 	.s_ctrl = cx25840_s_ctrl,

drivers/media/video/cx25840/cx25840-core.h

@@ -26,14 +26,6 @@
 #include <media/v4l2-chip-ident.h>
 #include <linux/i2c.h>
 
-/* ENABLE_PVR150_WORKAROUND activates a workaround for a hardware bug that is
-   present in Hauppauge PVR-150 (and possibly PVR-500) cards that have
-   certain NTSC tuners (tveeprom tuner model numbers 85, 99 and 112). The
-   audio autodetect fails on some channels for these models and the workaround
-   is to select the audio standard explicitly. Many thanks to Hauppauge for
-   providing this information. */
-#define CX25840_CID_ENABLE_PVR150_WORKAROUND (V4L2_CID_PRIVATE_BASE+0)
-
 struct cx25840_ir_state;
 
 struct cx25840_state {

drivers/media/video/ivtv/ivtv-driver.c

@@ -1269,15 +1269,8 @@ int ivtv_init_on_first_open(struct ivtv *itv)
 	IVTV_DEBUG_INFO("Getting firmware version..\n");
 	ivtv_firmware_versions(itv);
 
-	if (itv->card->hw_all & IVTV_HW_CX25840) {
-		struct v4l2_control ctrl;
-
+	if (itv->card->hw_all & IVTV_HW_CX25840)
 		v4l2_subdev_call(itv->sd_video, core, load_fw);
-		/* CX25840_CID_ENABLE_PVR150_WORKAROUND */
-		ctrl.id = V4L2_CID_PRIVATE_BASE;
-		ctrl.value = itv->pvr150_workaround;
-		v4l2_subdev_call(itv->sd_video, core, s_ctrl, &ctrl);
-	}
 
 	vf.tuner = 0;
 	vf.type = V4L2_TUNER_ANALOG_TV;

drivers/media/video/ivtv/ivtv-i2c.c

@@ -63,6 +63,7 @@
 #include "ivtv-cards.h"
 #include "ivtv-gpio.h"
 #include "ivtv-i2c.h"
+#include <media/cx25840.h>
 
 /* i2c implementation for cx23415/6 chip, ivtv project.
  * Author: Kevin Thayer (nufan_wfk at yahoo.com)
@@ -292,6 +293,12 @@ int ivtv_i2c_register(struct ivtv *itv, unsigned idx)
 	if (hw == IVTV_HW_UPD64031A || hw == IVTV_HW_UPD6408X) {
 		sd = v4l2_i2c_new_subdev(&itv->v4l2_dev,
 				adap, mod, type, 0, I2C_ADDRS(hw_addrs[idx]));
+	} else if (hw == IVTV_HW_CX25840) {
+		struct cx25840_platform_data pdata;
+
+		pdata.pvr150_workaround = itv->pvr150_workaround;
+		sd = v4l2_i2c_new_subdev_cfg(&itv->v4l2_dev,
+				adap, mod, type, 0, &pdata, hw_addrs[idx], NULL);
 	} else {
 		sd = v4l2_i2c_new_subdev(&itv->v4l2_dev,
 				adap, mod, type, hw_addrs[idx], NULL);

include/media/cx25840.h

@@ -172,4 +172,16 @@ enum cx23885_io_pad {
 	CX23885_PAD_IRQ_N,
 	CX23885_PAD_GPIO16,
 };
+
+/* pvr150_workaround activates a workaround for a hardware bug that is
+   present in Hauppauge PVR-150 (and possibly PVR-500) cards that have
+   certain NTSC tuners (tveeprom tuner model numbers 85, 99 and 112). The
+   audio autodetect fails on some channels for these models and the workaround
+   is to select the audio standard explicitly. Many thanks to Hauppauge for
+   providing this information.
+   This platform data only needs to be supplied by the ivtv driver. */
+struct cx25840_platform_data {
+	int pvr150_workaround;
+};
+
 #endif