From: Maxime Ripard <maxime@cerno.tech>
Date: Mon, 14 Nov 2022 13:00:31 +0000 (+0100)
Subject: drm/connector: Add pixel clock to cmdline mode
X-Git-Tag: v6.6.7~1918^2~23^2~1311
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=0e308efe232afdec35d508f5dfae52f03d50efca;p=platform%2Fkernel%2Flinux-starfive.git

drm/connector: Add pixel clock to cmdline mode

We'll need to get the pixel clock to generate proper display modes for
all the current named modes. Let's add it to struct drm_cmdline_mode and
fill it when parsing the named mode.

Reviewed-by: Noralf Trønnes <noralf@tronnes.org>
Tested-by: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com>
Link: https://lore.kernel.org/r/20220728-rpi-analog-tv-properties-v9-12-24b168e5bcd5@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
---

diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
index 17b7829..3c8034a 100644
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c
@@ -1752,22 +1752,24 @@ static int drm_mode_parse_cmdline_options(const char *str,
 
 struct drm_named_mode {
 	const char *name;
+	unsigned int pixel_clock_khz;
 	unsigned int xres;
 	unsigned int yres;
 	unsigned int flags;
 };
 
-#define NAMED_MODE(_name, _x, _y, _flags)		\
+#define NAMED_MODE(_name, _pclk, _x, _y, _flags)	\
 	{						\
 		.name = _name,				\
+		.pixel_clock_khz = _pclk,		\
 		.xres = _x,				\
 		.yres = _y,				\
 		.flags = _flags,			\
 	}
 
 static const struct drm_named_mode drm_named_modes[] = {
-	NAMED_MODE("NTSC", 720, 480, DRM_MODE_FLAG_INTERLACE),
-	NAMED_MODE("PAL", 720, 576, DRM_MODE_FLAG_INTERLACE),
+	NAMED_MODE("NTSC", 13500, 720, 480, DRM_MODE_FLAG_INTERLACE),
+	NAMED_MODE("PAL", 13500, 720, 576, DRM_MODE_FLAG_INTERLACE),
 };
 
 static int drm_mode_parse_cmdline_named_mode(const char *name,
@@ -1808,6 +1810,7 @@ static int drm_mode_parse_cmdline_named_mode(const char *name,
 			continue;
 
 		strcpy(cmdline_mode->name, mode->name);
+		cmdline_mode->pixel_clock = mode->pixel_clock_khz;
 		cmdline_mode->xres = mode->xres;
 		cmdline_mode->yres = mode->yres;
 		cmdline_mode->interlace = !!(mode->flags & DRM_MODE_FLAG_INTERLACE);
diff --git a/include/drm/drm_connector.h b/include/drm/drm_connector.h
index e641a47..f1cba18 100644
--- a/include/drm/drm_connector.h
+++ b/include/drm/drm_connector.h
@@ -1213,6 +1213,13 @@ struct drm_cmdline_mode {
 	bool bpp_specified;
 
 	/**
+	 * @pixel_clock:
+	 *
+	 * Pixel Clock in kHz. Optional.
+	 */
+	unsigned int pixel_clock;
+
+	/**
 	 * @xres:
 	 *
 	 * Active resolution on the X axis, in pixels.