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drm/meson: Fix atomic mode switching regression

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Since commit 2bcd3ecab7 when switching mode from X11 (ubuntu mate for
example) the display gets blurry, looking like an invalid framebuffer width.

This commit fixed atomic crtc modesetting in a totally wrong way and
introduced a local unnecessary ->enabled crtc state.

This commit reverts the crctc _begin() and _enable() changes and simply
adds drm_atomic_helper_commit_tail_rpm as helper.

Reported-by: Tony McKahan <tonymckahan@gmail.com>
Suggested-by: Daniel Vetter <daniel@ffwll.ch>
Fixes: 2bcd3ecab7 ("drm/meson: Fixes for drm_crtc_vblank_on/off support")
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
[narmstrong: fixed blank line issue from checkpatch]
Link: https://patchwork.freedesktop.org/patch/msgid/20190114153118.8024-1-narmstrong@baylibre.com
This commit is contained in:
Neil Armstrong 2019-01-14 16:31:18 +01:00
parent f672b93e4a
commit ce0210c124
2 changed files with 7 additions and 21 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
drivers/gpu/drm/meson/meson_crtc.c
View File

@ -46,7 +46,6 @@ struct meson_crtc {
struct drm_crtc base;
struct drm_pending_vblank_event *event;
struct meson_drm *priv;
bool enabled;
};
#define to_meson_crtc(x) container_of(x, struct meson_crtc, base)
@ -82,7 +81,8 @@ static const struct drm_crtc_funcs meson_crtc_funcs = {
};
static void meson_crtc_enable(struct drm_crtc *crtc)
static void meson_crtc_atomic_enable(struct drm_crtc *crtc,
struct drm_crtc_state *old_state)
{
struct meson_crtc *meson_crtc = to_meson_crtc(crtc);
struct drm_crtc_state *crtc_state = crtc->state;
@ -108,20 +108,6 @@ static void meson_crtc_enable(struct drm_crtc *crtc)
drm_crtc_vblank_on(crtc);
meson_crtc->enabled = true;
}
static void meson_crtc_atomic_enable(struct drm_crtc *crtc,
struct drm_crtc_state *old_state)
{
struct meson_crtc *meson_crtc = to_meson_crtc(crtc);
struct meson_drm *priv = meson_crtc->priv;
DRM_DEBUG_DRIVER("\n");
if (!meson_crtc->enabled)
meson_crtc_enable(crtc);
priv->viu.osd1_enabled = true;
}
@ -153,8 +139,6 @@ static void meson_crtc_atomic_disable(struct drm_crtc *crtc,
crtc->state->event = NULL;
}
meson_crtc->enabled = false;
}
static void meson_crtc_atomic_begin(struct drm_crtc *crtc,
@ -163,9 +147,6 @@ static void meson_crtc_atomic_begin(struct drm_crtc *crtc,
struct meson_crtc *meson_crtc = to_meson_crtc(crtc);
unsigned long flags;
if (crtc->state->enable && !meson_crtc->enabled)
meson_crtc_enable(crtc);
if (crtc->state->event) {
WARN_ON(drm_crtc_vblank_get(crtc) != 0);

5
drivers/gpu/drm/meson/meson_drv.c
View File

@ -75,6 +75,10 @@ static const struct drm_mode_config_funcs meson_mode_config_funcs = {
.fb_create = drm_gem_fb_create,
};
static const struct drm_mode_config_helper_funcs meson_mode_config_helpers = {
.atomic_commit_tail = drm_atomic_helper_commit_tail_rpm,
};
static irqreturn_t meson_irq(int irq, void *arg)
{
struct drm_device *dev = arg;
@ -266,6 +270,7 @@ static int meson_drv_bind_master(struct device *dev, bool has_components)
drm->mode_config.max_width = 3840;
drm->mode_config.max_height = 2160;
drm->mode_config.funcs = &meson_mode_config_funcs;
drm->mode_config.helper_private = &meson_mode_config_helpers;
/* Hardware Initialization */