[PATCH] drm/exynos: hdmi: use drm_display_mode to check the supported modes

[Rahul Sharma]

Exynos hdmi driver is using drm_display_mode for setting timing values
for a supported resolution. Conversion to fb_videomode and then comparing
with the mixer/hdmi/phy limits is not required. Instead, drm_display_mode
fields cane be directly compared.

This patch is dependent on https://patchwork.kernel.org/patch/2176021/.

Signed-off-by: Rahul Sharma <rahul.sharma at samsung.com>
---
It is based on exynos-drm-next-todo branch at
git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos.git

 drivers/gpu/drm/exynos/exynos_drm_connector.c |  5 +----
 drivers/gpu/drm/exynos/exynos_drm_hdmi.h      |  6 +++---
 drivers/gpu/drm/exynos/exynos_hdmi.c          | 15 +++++++--------
 drivers/gpu/drm/exynos/exynos_mixer.c         | 13 +++++++------
 4 files changed, 18 insertions(+), 21 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_drm_connector.c b/drivers/gpu/drm/exynos/exynos_drm_connector.c
index 4c5b685..ab0f67a 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_connector.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_connector.c
@@ -168,15 +168,12 @@ static int exynos_drm_connector_mode_valid(struct drm_connector *connector,
 					to_exynos_connector(connector);
 	struct exynos_drm_manager *manager = exynos_connector->manager;
 	struct exynos_drm_display_ops *display_ops = manager->display_ops;
-	struct fb_videomode timing;
 	int ret = MODE_BAD;
 
 	DRM_DEBUG_KMS("%s\n", __FILE__);
 
-	convert_to_video_timing(&timing, mode);
-
 	if (display_ops && display_ops->check_timing)
-		if (!display_ops->check_timing(manager->dev, (void *)&timing))
+		if (!display_ops->check_timing(manager->dev, (void *)mode))
 			ret = MODE_OK;
 
 	return ret;
diff --git a/drivers/gpu/drm/exynos/exynos_drm_hdmi.h b/drivers/gpu/drm/exynos/exynos_drm_hdmi.h
index b7faa36..844addb 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_hdmi.h
+++ b/drivers/gpu/drm/exynos/exynos_drm_hdmi.h
@@ -32,14 +32,14 @@ struct exynos_hdmi_ops {
 	bool (*is_connected)(void *ctx);
 	struct edid *(*get_edid)(void *ctx,
 			struct drm_connector *connector);
-	int (*check_timing)(void *ctx, struct fb_videomode *timing);
+	int (*check_timing)(void *ctx, struct drm_display_mode *mode);
 	int (*power_on)(void *ctx, int mode);
 
 	/* manager */
 	void (*mode_fixup)(void *ctx, struct drm_connector *connector,
 				const struct drm_display_mode *mode,
 				struct drm_display_mode *adjusted_mode);
-	void (*mode_set)(void *ctx, void *mode);
+	void (*mode_set)(void *ctx, struct drm_display_mode *mode);
 	void (*get_max_resol)(void *ctx, unsigned int *width,
 				unsigned int *height);
 	void (*commit)(void *ctx);
@@ -60,7 +60,7 @@ struct exynos_mixer_ops {
 	void (*win_disable)(void *ctx, int zpos);
 
 	/* display */
-	int (*check_timing)(void *ctx, struct fb_videomode *timing);
+	int (*check_timing)(void *ctx, struct drm_display_mode *mode);
 };
 
 void exynos_hdmi_drv_attach(struct exynos_drm_hdmi_context *ctx);
diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c
index c38d275..d8d78a6 100644
--- a/drivers/gpu/drm/exynos/exynos_hdmi.c
+++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
@@ -798,18 +798,17 @@ static int hdmi_find_phy_conf(struct hdmi_context *hdata, u32 pixel_clock)
 	return -EINVAL;
 }
 
-static int hdmi_check_timing(void *ctx, struct fb_videomode *timing)
+static int hdmi_check_timing(void *ctx, struct drm_display_mode *mode)
 {
 	struct hdmi_context *hdata = ctx;
 	int ret;
 
-	DRM_DEBUG_KMS("[%d] %s\n", __LINE__, __func__);
-
-	DRM_DEBUG_KMS("[%d]x[%d] [%d]Hz [%x]\n", timing->xres,
-			timing->yres, timing->refresh,
-			timing->vmode);
+	DRM_DEBUG_KMS("%s : xres=%d, yres=%d, refresh=%d, intl=%d clock=%d\n",
+		__func__, mode->hdisplay, mode->vdisplay,
+		mode->vrefresh, (mode->flags & DRM_MODE_FLAG_INTERLACE) ? true :
+		false, mode->clock * 1000);
 
-	ret = hdmi_find_phy_conf(hdata, timing->pixclock);
+	ret = hdmi_find_phy_conf(hdata, mode->clock * 1000);
 	if (ret < 0)
 		return ret;
 	return 0;
@@ -1691,7 +1690,7 @@ static void hdmi_v14_mode_set(struct hdmi_context *hdata,
 	hdmi_set_reg(tg->tg_3d, 1, 0x0);
 }
 
-static void hdmi_mode_set(void *ctx, void *mode)
+static void hdmi_mode_set(void *ctx, struct drm_display_mode *mode)
 {
 	struct hdmi_context *hdata = ctx;
 	struct drm_display_mode *m = mode;
diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c
index b6339f9..55cfde5 100644
--- a/drivers/gpu/drm/exynos/exynos_mixer.c
+++ b/drivers/gpu/drm/exynos/exynos_mixer.c
@@ -811,17 +811,17 @@ static void mixer_win_disable(void *ctx, int win)
 	mixer_ctx->win_data[win].enabled = false;
 }
 
-int mixer_check_timing(void *ctx, struct fb_videomode *timing)
+int mixer_check_timing(void *ctx, struct drm_display_mode *mode)
 {
 	u32 w, h;
 
-	w = timing->xres;
-	h = timing->yres;
+	w = mode->hdisplay;
+	h = mode->vdisplay;
 
 	DRM_DEBUG_KMS("%s : xres=%d, yres=%d, refresh=%d, intl=%d\n",
-		__func__, timing->xres, timing->yres,
-		timing->refresh, (timing->vmode &
-		FB_VMODE_INTERLACED) ? true : false);
+		__func__, mode->hdisplay, mode->vdisplay,
+		mode->vrefresh, (mode->flags &
+		DRM_MODE_FLAG_INTERLACE) ? true : false);
 
 	if ((w >= 464 && w <= 720 && h >= 261 && h <= 576) ||
 		(w >= 1024 && w <= 1280 && h >= 576 && h <= 720) ||
@@ -830,6 +830,7 @@ int mixer_check_timing(void *ctx, struct fb_videomode *timing)
 
 	return -EINVAL;
 }
+
 static void mixer_wait_for_vblank(void *ctx)
 {
 	struct mixer_context *mixer_ctx = ctx;
-- 
1.8.0