diff options
| author | Dmitry Baryshkov <dmitry.baryshkov@linaro.org> | 2021-01-22 02:33:01 +0300 |
|---|---|---|
| committer | Andrzej Hajda <a.hajda@samsung.com> | 2021-01-28 13:54:49 +0300 |
| commit | 053b1b287ccf734cc3b5a40b3b17a63185758c61 (patch) | |
| tree | d9ef35fc14b70d144e991f89f7093e64bdc17796 /drivers/gpu | |
| parent | f6b57101a6b31277a4bde1d8028c46e898bd2ff2 (diff) | |
| download | linux-053b1b287ccf734cc3b5a40b3b17a63185758c61.tar.xz | |
drm/bridge/lontium-lt9611uxc: fix waiting for EDID to become available
- Call wake_up() when EDID ready event is received to wake
wait_event_interruptible_timeout()
- Increase waiting timeout, reading EDID can take longer than 100ms, so
let's be on a safe side.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Fixes: 0cbbd5b1a012 ("drm: bridge: add support for lontium LT9611UXC bridge")
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Reviewed-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210121233303.1221784-2-dmitry.baryshkov@linaro.org
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/bridge/lontium-lt9611uxc.c | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/gpu/drm/bridge/lontium-lt9611uxc.c b/drivers/gpu/drm/bridge/lontium-lt9611uxc.c index 0c98d27f84ac..a59e811f1705 100644 --- a/drivers/gpu/drm/bridge/lontium-lt9611uxc.c +++ b/drivers/gpu/drm/bridge/lontium-lt9611uxc.c @@ -145,8 +145,10 @@ static irqreturn_t lt9611uxc_irq_thread_handler(int irq, void *dev_id) lt9611uxc_unlock(lt9611uxc); - if (irq_status & BIT(0)) + if (irq_status & BIT(0)) { lt9611uxc->edid_read = !!(hpd_status & BIT(0)); + wake_up_all(<9611uxc->wq); + } if (irq_status & BIT(1)) { if (lt9611uxc->connector.dev) @@ -465,7 +467,7 @@ static enum drm_connector_status lt9611uxc_bridge_detect(struct drm_bridge *brid static int lt9611uxc_wait_for_edid(struct lt9611uxc *lt9611uxc) { return wait_event_interruptible_timeout(lt9611uxc->wq, lt9611uxc->edid_read, - msecs_to_jiffies(100)); + msecs_to_jiffies(500)); } static int lt9611uxc_get_edid_block(void *data, u8 *buf, unsigned int block, size_t len) |