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authorRahul Sharma <rahul.sharma@samsung.com>2013-01-15 13:11:06 (GMT)
committerInki Dae <inki.dae@samsung.com>2013-02-21 06:00:27 (GMT)
commit0ea6822f5215b1771949e8b278f66ed787ba83f1 (patch)
tree92e0e207008c3dd5a4b1f4e1960a033bab53ba70 /drivers/gpu
parent438c0f85cbbe6e7025e2375f97f5223b6eac5cd7 (diff)
downloadlinux-0ea6822f5215b1771949e8b278f66ed787ba83f1.tar.xz
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>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/exynos/exynos_mixer.c26
1 files changed, 26 insertions, 0 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c
index c414584..cc809ca 100644
--- a/drivers/gpu/drm/exynos/exynos_mixer.c
+++ b/drivers/gpu/drm/exynos/exynos_mixer.c
@@ -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)