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drm/exynos: implement display-mode-check callback in mixer driver 

This patch adds the implementation of check_timing callback in the mixer
driver. Based on the mixer version, correct set of restrictions will be
exposed by the mixer driver. A resolution will be acceptable only if passes
the criteria set by mixer and hdmi IPs.

Signed-off-by: Rahul Sharma <rahul.sharma@samsung.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
This commit is contained in:
Rahul Sharma 2013-01-15 08:11:06 -05:00 committed by Inki Dae
parent 438c0f85cb
commit 0ea6822f52
1 changed files with 26 additions and 0 deletions
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26
drivers/gpu/drm/exynos/exynos_mixer.c
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@ -818,6 +818,29 @@ 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)
{
struct mixer_context *mixer_ctx = ctx;
u32 w, h;
w = timing->xres;
h = timing->yres;
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);
if (mixer_ctx->mxr_ver == MXR_VER_0_0_0_16)
return 0;
if ((w >= 464 && w <= 720 && h >= 261 && h <= 576) ||
(w >= 1024 && w <= 1280 && h >= 576 && h <= 720) ||
(w >= 1664 && w <= 1920 && h >= 936 && h <= 1080))
return 0;
return -EINVAL;
}
static void mixer_wait_for_vblank(void *ctx)
{
struct mixer_context *mixer_ctx = ctx;
@ -955,6 +978,9 @@ static struct exynos_mixer_ops mixer_ops = {
.win_mode_set = mixer_win_mode_set,
.win_commit = mixer_win_commit,
.win_disable = mixer_win_disable,
/* display */
.check_timing = mixer_check_timing,
};
static irqreturn_t mixer_irq_handler(int irq, void *arg)