[PATCH v2] drm/exynos: hdmi: use drm_display_mode to check the supported modes
김승우
sw0312.kim at samsung.com
Sun Apr 28 21:34:07 PDT 2013
Hello Rahul,
I agree with basic idea of this patch.
However, to avoid confusion, how do you think about fixing all
check_timing as check_mode and its second parameter as mode including
struct exynos_drm_display_ops?
Regards,
- Seung-Woo Kim
On 2013년 04월 26일 23:03, Rahul Sharma wrote:
> 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.
>
> v2:
> 1) Removed convert_to_video_timing().
> 2) Corrected DRM_DEBUG_KMS to print the resolution properly.
>
> Signed-off-by: Rahul Sharma <rahul.sharma at samsung.com>
> ---
> drivers/gpu/drm/exynos/exynos_drm_connector.c | 36 +------------------------
> 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(+), 52 deletions(-)
>
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_connector.c b/drivers/gpu/drm/exynos/exynos_drm_connector.c
> index 8bcc13a..7259fff 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_connector.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_connector.c
> @@ -58,37 +58,6 @@ convert_to_display_mode(struct drm_display_mode *mode,
> mode->flags |= DRM_MODE_FLAG_DBLSCAN;
> }
>
> -/* convert drm_display_mode to exynos_video_timings */
> -static inline void
> -convert_to_video_timing(struct fb_videomode *timing,
> - struct drm_display_mode *mode)
> -{
> - DRM_DEBUG_KMS("%s\n", __FILE__);
> -
> - memset(timing, 0, sizeof(*timing));
> -
> - timing->pixclock = mode->clock * 1000;
> - timing->refresh = drm_mode_vrefresh(mode);
> -
> - timing->xres = mode->hdisplay;
> - timing->right_margin = mode->hsync_start - mode->hdisplay;
> - timing->hsync_len = mode->hsync_end - mode->hsync_start;
> - timing->left_margin = mode->htotal - mode->hsync_end;
> -
> - timing->yres = mode->vdisplay;
> - timing->lower_margin = mode->vsync_start - mode->vdisplay;
> - timing->vsync_len = mode->vsync_end - mode->vsync_start;
> - timing->upper_margin = mode->vtotal - mode->vsync_end;
> -
> - if (mode->flags & DRM_MODE_FLAG_INTERLACE)
> - timing->vmode = FB_VMODE_INTERLACED;
> - else
> - timing->vmode = FB_VMODE_NONINTERLACED;
> -
> - if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
> - timing->vmode |= FB_VMODE_DOUBLE;
> -}
> -
> static int exynos_drm_connector_get_modes(struct drm_connector *connector)
> {
> struct exynos_drm_connector *exynos_connector =
> @@ -168,15 +137,12 @@ 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 6b70944..fd2ff9f 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_hdmi.h
> +++ b/drivers/gpu/drm/exynos/exynos_drm_hdmi.h
> @@ -32,11 +32,11 @@ 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_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);
> @@ -57,7 +57,7 @@ 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 93b70e9..aeca603 100644
> --- a/drivers/gpu/drm/exynos/exynos_hdmi.c
> +++ b/drivers/gpu/drm/exynos/exynos_hdmi.c
> @@ -796,18 +796,17 @@ 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("[WxH at HzI/P at Pixel Clk]: %dx%d@%d%s at %d\n",
> + mode->hdisplay, mode->vdisplay, mode->vrefresh,
> + (mode->flags & DRM_MODE_FLAG_INTERLACE) ? "I" : "P",
> + 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;
> @@ -1643,7 +1642,7 @@ 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 f08e251..67c4fd8 100644
> --- a/drivers/gpu/drm/exynos/exynos_mixer.c
> +++ b/drivers/gpu/drm/exynos/exynos_mixer.c
> @@ -818,17 +818,17 @@ static void mixer_win_disable(void *ctx, int win)
> mixer_ctx->win_data[win].enabled = false;
> }
>
> -static int mixer_check_timing(void *ctx, struct fb_videomode *timing)
> +static 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) ||
> @@ -837,6 +837,7 @@ static 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;
>
--
Seung-Woo Kim
Samsung Software R&D Center
--
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