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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: 0cbbd5b1a0
("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
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1 changed files with 4 additions and 2 deletions
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@ -145,8 +145,10 @@ static irqreturn_t lt9611uxc_irq_thread_handler(int irq, void *dev_id)
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lt9611uxc_unlock(lt9611uxc);
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if (irq_status & BIT(0))
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if (irq_status & BIT(0)) {
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lt9611uxc->edid_read = !!(hpd_status & BIT(0));
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wake_up_all(<9611uxc->wq);
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}
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if (irq_status & BIT(1)) {
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if (lt9611uxc->connector.dev)
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@ -465,7 +467,7 @@ static enum drm_connector_status lt9611uxc_bridge_detect(struct drm_bridge *brid
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static int lt9611uxc_wait_for_edid(struct lt9611uxc *lt9611uxc)
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{
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return wait_event_interruptible_timeout(lt9611uxc->wq, lt9611uxc->edid_read,
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msecs_to_jiffies(100));
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msecs_to_jiffies(500));
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}
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static int lt9611uxc_get_edid_block(void *data, u8 *buf, unsigned int block, size_t len)
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