diff options
| author |   Yannick Fertré <yannick.fertre@st.com> | 2019-11-27 11:23:38 +0100 |
|---|---|---|
| committer |   Benjamin Gaignard <benjamin.gaignard@st.com> | 2019-12-20 13:30:42 +0100 |
| commit | f412af187ae1a0171f779b4666557c60130e1976 (patch) | |
| tree | 23397388209d2c64a807a6f2a43eeb26c35038d3 /drivers | |
| parent | drm/todo: Updating logging todo (diff) | |
| download | linux-dev-f412af187ae1a0171f779b4666557c60130e1976.tar.xz linux-dev-f412af187ae1a0171f779b4666557c60130e1976.zip | |
drm/stm: ltdc: move pinctrl to encoder mode set
The pin control must be set to default as soon as possible to
establish a good video link between tv & bridge hdmi
(encoder mode set is call before encoder enable).
Signed-off-by: Yannick Fertre <yannick.fertre@st.com>
Acked-by: Philippe Cornu <philippe.cornu@st.com>
Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1574850218-13257-1-git-send-email-yannick.fertre@st.com
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/stm/ltdc.c | 24 |
1 files changed, 18 insertions, 6 deletions
diff --git a/drivers/gpu/drm/stm/ltdc.c b/drivers/gpu/drm/stm/ltdc.c index 5b51298921cf..c2815e8ae1da 100644 --- a/drivers/gpu/drm/stm/ltdc.c +++ b/drivers/gpu/drm/stm/ltdc.c @@ -437,9 +437,6 @@ static void ltdc_crtc_atomic_enable(struct drm_crtc *crtc, /* Commit shadow registers = update planes at next vblank */ reg_set(ldev->regs, LTDC_SRCR, SRCR_VBR); - /* Enable LTDC */ - reg_set(ldev->regs, LTDC_GCR, GCR_LTDCEN); - drm_crtc_vblank_on(crtc); } @@ -453,9 +450,6 @@ static void ltdc_crtc_atomic_disable(struct drm_crtc *crtc, drm_crtc_vblank_off(crtc); - /* disable LTDC */ - reg_clear(ldev->regs, LTDC_GCR, GCR_LTDCEN); - /* disable IRQ */ reg_clear(ldev->regs, LTDC_IER, IER_RRIE | IER_FUIE | IER_TERRIE); @@ -1044,9 +1038,13 @@ static const struct drm_encoder_funcs ltdc_encoder_funcs = { static void ltdc_encoder_disable(struct drm_encoder *encoder) { struct drm_device *ddev = encoder->dev; + struct ltdc_device *ldev = ddev->dev_private; DRM_DEBUG_DRIVER("\n"); + /* Disable LTDC */ + reg_clear(ldev->regs, LTDC_GCR, GCR_LTDCEN); + /* Set to sleep state the pinctrl whatever type of encoder */ pinctrl_pm_select_sleep_state(ddev->dev); } @@ -1054,6 +1052,19 @@ static void ltdc_encoder_disable(struct drm_encoder *encoder) static void ltdc_encoder_enable(struct drm_encoder *encoder) { struct drm_device *ddev = encoder->dev; + struct ltdc_device *ldev = ddev->dev_private; + + DRM_DEBUG_DRIVER("\n"); + + /* Enable LTDC */ + reg_set(ldev->regs, LTDC_GCR, GCR_LTDCEN); +} + +static void ltdc_encoder_mode_set(struct drm_encoder *encoder, + struct drm_display_mode *mode, + struct drm_display_mode *adjusted_mode) +{ + struct drm_device *ddev = encoder->dev; DRM_DEBUG_DRIVER("\n"); @@ -1069,6 +1080,7 @@ static void ltdc_encoder_enable(struct drm_encoder *encoder) static const struct drm_encoder_helper_funcs ltdc_encoder_helper_funcs = { .disable = ltdc_encoder_disable, .enable = ltdc_encoder_enable, + .mode_set = ltdc_encoder_mode_set, }; static int ltdc_encoder_init(struct drm_device *ddev, struct drm_bridge *bridge) |