drm/panel: otm8009a: add a 60 fps mode

This patch adds a 60 fps mode to the Orisetech OTM8009A panel.
The 50 fps mode is left as preferred.
Signed-off-by: Raphael Gallais-Pou <raphael.gallais-pou@foss.st.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20210902150351.3779-1-raphael.gallais-pou@foss.st.com

drivers/gpu/drm/panel/panel-orisetech-otm8009a.c

@@ -60,6 +60,9 @@
 #define MCS_CMD2_ENA1	0xFF00	/* Enable Access Command2 "CMD2" */
 #define MCS_CMD2_ENA2	0xFF80	/* Enable Access Orise Command2 */
 
+#define OTM8009A_HDISPLAY	480
+#define OTM8009A_VDISPLAY	800
+
 struct otm8009a {
 	struct device *dev;
 	struct drm_panel panel;
@@ -70,19 +73,35 @@ struct otm8009a {
 	bool enabled;
 };
 
-static const struct drm_display_mode default_mode = {
-	.clock = 29700,
-	.hdisplay = 480,
-	.hsync_start = 480 + 98,
-	.hsync_end = 480 + 98 + 32,
-	.htotal = 480 + 98 + 32 + 98,
-	.vdisplay = 800,
-	.vsync_start = 800 + 15,
-	.vsync_end = 800 + 15 + 10,
-	.vtotal = 800 + 15 + 10 + 14,
-	.flags = 0,
-	.width_mm = 52,
-	.height_mm = 86,
+static const struct drm_display_mode modes[] = {
+	{ /* 50 Hz, preferred */
+		.clock = 29700,
+		.hdisplay = 480,
+		.hsync_start = 480 + 98,
+		.hsync_end = 480 + 98 + 32,
+		.htotal = 480 + 98 + 32 + 98,
+		.vdisplay = 800,
+		.vsync_start = 800 + 15,
+		.vsync_end = 800 + 15 + 10,
+		.vtotal = 800 + 15 + 10 + 14,
+		.flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
+		.width_mm = 52,
+		.height_mm = 86,
+	},
+	{ /* 60 Hz */
+		.clock = 33000,
+		.hdisplay = 480,
+		.hsync_start = 480 + 70,
+		.hsync_end = 480 + 70 + 32,
+		.htotal = 480 + 70 + 32 + 72,
+		.vdisplay = 800,
+		.vsync_start = 800 + 15,
+		.vsync_end = 800 + 15 + 10,
+		.vtotal = 800 + 15 + 10 + 16,
+		.flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC,
+		.width_mm = 52,
+		.height_mm = 86,
+	},
 };
 
 static inline struct otm8009a *panel_to_otm8009a(struct drm_panel *panel)
@@ -208,12 +227,11 @@ static int otm8009a_init_sequence(struct otm8009a *ctx)
 	/* Default portrait 480x800 rgb24 */
 	dcs_write_seq(ctx, MIPI_DCS_SET_ADDRESS_MODE, 0x00);
 
-	ret = mipi_dsi_dcs_set_column_address(dsi, 0,
-					      default_mode.hdisplay - 1);
+	ret = mipi_dsi_dcs_set_column_address(dsi, 0, OTM8009A_HDISPLAY - 1);
 	if (ret)
 		return ret;
 
-	ret = mipi_dsi_dcs_set_page_address(dsi, 0, default_mode.vdisplay - 1);
+	ret = mipi_dsi_dcs_set_page_address(dsi, 0, OTM8009A_VDISPLAY - 1);
 	if (ret)
 		return ret;
 
@@ -337,24 +355,33 @@ static int otm8009a_get_modes(struct drm_panel *panel,
 			      struct drm_connector *connector)
 {
 	struct drm_display_mode *mode;
-
-	mode = drm_mode_duplicate(connector->dev, &default_mode);
-	if (!mode) {
-		dev_err(panel->dev, "failed to add mode %ux%u@%u\n",
-			default_mode.hdisplay, default_mode.vdisplay,
-			drm_mode_vrefresh(&default_mode));
-		return -ENOMEM;
+	unsigned int num_modes = ARRAY_SIZE(modes);
+	unsigned int i;
+
+	for (i = 0; i < num_modes; i++) {
+		mode = drm_mode_duplicate(connector->dev, &modes[i]);
+		if (!mode) {
+			dev_err(panel->dev, "failed to add mode %ux%u@%u\n",
+				modes[i].hdisplay,
+				modes[i].vdisplay,
+				drm_mode_vrefresh(&modes[i]));
+			return -ENOMEM;
+		}
+
+		mode->type = DRM_MODE_TYPE_DRIVER;
+
+		/* Setting first mode as preferred */
+		if (!i)
+			mode->type |=  DRM_MODE_TYPE_PREFERRED;
+
+		drm_mode_set_name(mode);
+		drm_mode_probed_add(connector, mode);
 	}
 
-	drm_mode_set_name(mode);
-
-	mode->type = DRM_MODE_TYPE_DRIVER | DRM_MODE_TYPE_PREFERRED;
-	drm_mode_probed_add(connector, mode);
-
 	connector->display_info.width_mm = mode->width_mm;
 	connector->display_info.height_mm = mode->height_mm;
 
-	return 1;
+	return num_modes;
 }
 
 static const struct drm_panel_funcs otm8009a_drm_funcs = {