[PATCH v4] drm/exynos: hdmi: use drm_display_mode to check the supported modes
Rahul Sharma
r.sh.open at gmail.com
Thu May 2 20:22:18 PDT 2013
On Mon, Apr 29, 2013 at 9:54 PM, Sean Paul <seanpaul at google.com> wrote:
> 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.
>
Thanks Sean,
I will change the commit message and repost.
regards,
Rahul Sharma.
>
>
>> 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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