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| author | Rahul Sharma <rahul.sharma@samsung.com> | 2013-01-15 14:11:06 +0100 |
|---|---|---|
| committer | Inki Dae <inki.dae@samsung.com> | 2013-02-21 07:00:27 +0100 |
| commit | 0ea6822f5215b1771949e8b278f66ed787ba83f1 (patch) | |
| tree | 92e0e207008c3dd5a4b1f4e1960a033bab53ba70 /drivers/gpu/drm/exynos | |
| parent | drm/exynos: add display-mode-check operation to exynos_mixer_ops struct (diff) | |
| download | linux-0ea6822f5215b1771949e8b278f66ed787ba83f1.tar.xz linux-0ea6822f5215b1771949e8b278f66ed787ba83f1.zip | |
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/drm/exynos')
| -rw-r--r-- | drivers/gpu/drm/exynos/exynos_mixer.c | 26 |
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 c414584bfbae..cc809ca6b8ec 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) |