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 --- drivers/gpu/drm/exynos/exynos_mixer.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+)
diff --git a/drivers/gpu/drm/exynos/exynos_mixer.c b/drivers/gpu/drm/exynos/exynos_mixer.c index c187ea3..e569395 100644 --- a/drivers/gpu/drm/exynos/exynos_mixer.c +++ b/drivers/gpu/drm/exynos/exynos_mixer.c @@ -811,6 +811,29 @@ 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; @@ -948,6 +971,9 @@ 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)