[PATCH v4] drm/exynos: hdmi: use drm_display_mode to check the supported modes
Sean Paul
seanpaul at google.com
Mon Apr 29 09:24:25 PDT 2013
On Mon, Apr 29, 2013 at 7:14 AM, Rahul Sharma <rahul.sharma at samsung.com> 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.
>
it seems like you have 2 patches here, one which renames check_timing
to check_mode, and another which removes the fb_videomode usage. I
think it should probably be split.
If you don't split it, I think you could simplify the commit message to:
This patch renames check_timing to check_mode and removes the
unnecessary conversion of drm_display_mode to/from fb_videomode in the
hdmi driver.
> v4:
> 1) Removed __func__ from DRM_DEBUG_KMS.
>
> v3:
> 1) Replaced check_timing callbacks with check_mode.
> 2) Change the type of second parameter of check_mode callback from void
> pointer paramenter to struct drm_display_mode pointer.
>
> 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 | 38 ++-----------------------
> drivers/gpu/drm/exynos/exynos_drm_drv.h | 4 +--
> drivers/gpu/drm/exynos/exynos_drm_fimd.c | 4 +--
> drivers/gpu/drm/exynos/exynos_drm_hdmi.c | 17 +++++------
> drivers/gpu/drm/exynos/exynos_drm_hdmi.h | 6 ++--
> drivers/gpu/drm/exynos/exynos_drm_vidi.c | 4 +--
> drivers/gpu/drm/exynos/exynos_hdmi.c | 29 +++++++++----------
> drivers/gpu/drm/exynos/exynos_mixer.c | 17 +++++------
> 8 files changed, 43 insertions(+), 76 deletions(-)
>
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_connector.c b/drivers/gpu/drm/exynos/exynos_drm_connector.c
> index 8bcc13a..ab3c6d4 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 && display_ops->check_mode)
> + if (!display_ops->check_mode(manager->dev, mode))
> ret = MODE_OK;
>
> return ret;
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_drv.h b/drivers/gpu/drm/exynos/exynos_drm_drv.h
> index 4606fac..9650b3b 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_drv.h
> +++ b/drivers/gpu/drm/exynos/exynos_drm_drv.h
> @@ -142,7 +142,7 @@ struct exynos_drm_overlay {
> * @is_connected: check for that display is connected or not.
> * @get_edid: get edid modes from display driver.
> * @get_panel: get panel object from display driver.
> - * @check_timing: check if timing is valid or not.
> + * @check_mode: check if mode is valid or not.
> * @power_on: display device on or off.
> */
> struct exynos_drm_display_ops {
> @@ -151,7 +151,7 @@ struct exynos_drm_display_ops {
> struct edid *(*get_edid)(struct device *dev,
> struct drm_connector *connector);
> void *(*get_panel)(struct device *dev);
> - int (*check_timing)(struct device *dev, void *timing);
> + int (*check_mode)(struct device *dev, struct drm_display_mode *mode);
> int (*power_on)(struct device *dev, int mode);
> };
>
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_fimd.c b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
> index 15e58f5..98bbe1e 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_fimd.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_fimd.c
> @@ -153,7 +153,7 @@ static void *fimd_get_panel(struct device *dev)
> return ctx->panel;
> }
>
> -static int fimd_check_timing(struct device *dev, void *timing)
> +static int fimd_check_mode(struct device *dev, struct drm_display_mode *mode)
> {
> DRM_DEBUG_KMS("%s\n", __FILE__);
>
> @@ -175,7 +175,7 @@ static struct exynos_drm_display_ops fimd_display_ops = {
> .type = EXYNOS_DISPLAY_TYPE_LCD,
> .is_connected = fimd_display_is_connected,
> .get_panel = fimd_get_panel,
> - .check_timing = fimd_check_timing,
> + .check_mode = fimd_check_mode,
> .power_on = fimd_display_power_on,
> };
>
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_hdmi.c b/drivers/gpu/drm/exynos/exynos_drm_hdmi.c
> index 5285509..8a07e8b 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_hdmi.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_hdmi.c
> @@ -121,7 +121,8 @@ static struct edid *drm_hdmi_get_edid(struct device *dev,
> return NULL;
> }
>
> -static int drm_hdmi_check_timing(struct device *dev, void *timing)
> +static int drm_hdmi_check_mode(struct device *dev,
> + struct drm_display_mode *mode)
> {
> struct drm_hdmi_context *ctx = to_context(dev);
> int ret = 0;
> @@ -133,14 +134,14 @@ static int drm_hdmi_check_timing(struct device *dev, void *timing)
> * If any of the two fails, return mode as BAD.
> */
>
> - if (mixer_ops && mixer_ops->check_timing)
> - ret = mixer_ops->check_timing(ctx->mixer_ctx->ctx, timing);
> + if (mixer_ops && mixer_ops->check_mode)
> + ret = mixer_ops->check_mode(ctx->mixer_ctx->ctx, mode);
>
> if (ret)
> return ret;
>
> - if (hdmi_ops && hdmi_ops->check_timing)
> - return hdmi_ops->check_timing(ctx->hdmi_ctx->ctx, timing);
> + if (hdmi_ops && hdmi_ops->check_mode)
> + return hdmi_ops->check_mode(ctx->hdmi_ctx->ctx, mode);
>
> return 0;
> }
> @@ -161,7 +162,7 @@ static struct exynos_drm_display_ops drm_hdmi_display_ops = {
> .type = EXYNOS_DISPLAY_TYPE_HDMI,
> .is_connected = drm_hdmi_is_connected,
> .get_edid = drm_hdmi_get_edid,
> - .check_timing = drm_hdmi_check_timing,
> + .check_mode = drm_hdmi_check_mode,
> .power_on = drm_hdmi_power_on,
> };
>
> @@ -212,7 +213,7 @@ static void drm_hdmi_mode_fixup(struct device *subdrv_dev,
>
> drm_mode_set_crtcinfo(adjusted_mode, 0);
>
> - mode_ok = drm_hdmi_check_timing(subdrv_dev, adjusted_mode);
> + mode_ok = drm_hdmi_check_mode(subdrv_dev, adjusted_mode);
>
> /* just return if user desired mode exists. */
> if (mode_ok == 0)
> @@ -223,7 +224,7 @@ static void drm_hdmi_mode_fixup(struct device *subdrv_dev,
> * to adjusted_mode.
> */
> list_for_each_entry(m, &connector->modes, head) {
> - mode_ok = drm_hdmi_check_timing(subdrv_dev, m);
> + mode_ok = drm_hdmi_check_mode(subdrv_dev, m);
>
> if (mode_ok == 0) {
> struct drm_mode_object base;
> diff --git a/drivers/gpu/drm/exynos/exynos_drm_hdmi.h b/drivers/gpu/drm/exynos/exynos_drm_hdmi.h
> index 6b70944..724cab1 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_mode)(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_mode)(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_drm_vidi.c b/drivers/gpu/drm/exynos/exynos_drm_vidi.c
> index 9504b0c..6043700 100644
> --- a/drivers/gpu/drm/exynos/exynos_drm_vidi.c
> +++ b/drivers/gpu/drm/exynos/exynos_drm_vidi.c
> @@ -135,7 +135,7 @@ static void *vidi_get_panel(struct device *dev)
> return NULL;
> }
>
> -static int vidi_check_timing(struct device *dev, void *timing)
> +static int vidi_check_mode(struct device *dev, struct drm_display_mode *mode)
> {
> DRM_DEBUG_KMS("%s\n", __FILE__);
>
> @@ -158,7 +158,7 @@ static struct exynos_drm_display_ops vidi_display_ops = {
> .is_connected = vidi_display_is_connected,
> .get_edid = vidi_get_edid,
> .get_panel = vidi_get_panel,
> - .check_timing = vidi_check_timing,
> + .check_mode = vidi_check_mode,
> .power_on = vidi_display_power_on,
> };
>
> diff --git a/drivers/gpu/drm/exynos/exynos_hdmi.c b/drivers/gpu/drm/exynos/exynos_hdmi.c
> index 93b70e9..4b99dcd 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_mode(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("xres=%d, yres=%d, refresh=%d, intl=%d clock=%d\n",
> + mode->hdisplay, mode->vdisplay, mode->vrefresh,
> + (mode->flags & DRM_MODE_FLAG_INTERLACE) ? true :
> + false, mode->clock * 1000);
Why print a bool here? If you're interpreting the value, you might as
well use a string. Alternatively, just print flags directly.
>
> - ret = hdmi_find_phy_conf(hdata, timing->pixclock);
> + ret = hdmi_find_phy_conf(hdata, mode->clock * 1000);
> if (ret < 0)
> return ret;
> return 0;
> @@ -1042,7 +1041,7 @@ static void hdmi_conf_init(struct hdmi_context *hdata)
> }
> }
>
> -static void hdmi_v13_timing_apply(struct hdmi_context *hdata)
> +static void hdmi_v13_mode_apply(struct hdmi_context *hdata)
> {
> const struct hdmi_tg_regs *tg = &hdata->mode_conf.conf.v13_conf.tg;
> const struct hdmi_v13_core_regs *core =
> @@ -1131,7 +1130,7 @@ static void hdmi_v13_timing_apply(struct hdmi_context *hdata)
> hdmi_reg_writemask(hdata, HDMI_TG_CMD, ~0, HDMI_TG_EN);
> }
>
> -static void hdmi_v14_timing_apply(struct hdmi_context *hdata)
> +static void hdmi_v14_mode_apply(struct hdmi_context *hdata)
> {
> const struct hdmi_tg_regs *tg = &hdata->mode_conf.conf.v14_conf.tg;
> const struct hdmi_v14_core_regs *core =
> @@ -1298,12 +1297,12 @@ static void hdmi_v14_timing_apply(struct hdmi_context *hdata)
> hdmi_reg_writemask(hdata, HDMI_TG_CMD, ~0, HDMI_TG_EN);
> }
>
> -static void hdmi_timing_apply(struct hdmi_context *hdata)
> +static void hdmi_mode_apply(struct hdmi_context *hdata)
> {
> if (hdata->type == HDMI_TYPE13)
> - hdmi_v13_timing_apply(hdata);
> + hdmi_v13_mode_apply(hdata);
> else
> - hdmi_v14_timing_apply(hdata);
> + hdmi_v14_mode_apply(hdata);
> }
>
> static void hdmiphy_conf_reset(struct hdmi_context *hdata)
> @@ -1424,7 +1423,7 @@ static void hdmi_conf_apply(struct hdmi_context *hdata)
> hdmi_audio_init(hdata);
>
> /* setting core registers */
> - hdmi_timing_apply(hdata);
> + hdmi_mode_apply(hdata);
> hdmi_audio_control(hdata, true);
>
> hdmi_regs_dump(hdata, "start");
> @@ -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;
> @@ -1767,7 +1766,7 @@ static struct exynos_hdmi_ops hdmi_ops = {
> /* display */
> .is_connected = hdmi_is_connected,
> .get_edid = hdmi_get_edid,
> - .check_timing = hdmi_check_timing,
> + .check_mode = hdmi_check_mode,
>
> /* manager */
> .mode_set = hdmi_mode_set,
> diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c
> index f08e251..ffcc690 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_mode(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);
> + DRM_DEBUG_KMS("xres=%d, yres=%d, refresh=%d, intl=%d\n",
> + 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;
> @@ -976,7 +977,7 @@ static struct exynos_mixer_ops mixer_ops = {
> .win_disable = mixer_win_disable,
>
> /* display */
> - .check_timing = mixer_check_timing,
> + .check_mode = mixer_check_mode,
> };
>
> static irqreturn_t mixer_irq_handler(int irq, void *arg)
> --
> 1.7.10.4
>
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