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drm/rockchip: dw-dp: update gpio hpd state when init stage

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The gpio hpd state will be mismatch the real state if the cable
plug before init the dp controller. So it need updage the gpio
hpd state when dp controller init.

Fixes: 601aff2337 ("drm/rockchip: dw-dp: optimize the logic to deal with hpd")

Change-Id: I6b7a3d88e2ef70e54ad9465859c1a55205f10c4f
Signed-off-by: Zhang Yubing <yubing.zhang@rock-chips.com>
This commit is contained in:
Zhang Yubing
2024-11-18 11:38:57 +08:00
committed by Tao Huang
parent 7bc0d73f22
commit ee40bbe630
1 changed files with 8 additions and 2 deletions
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10
drivers/gpu/drm/rockchip/dw-dp.c
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@@ -2843,7 +2843,6 @@ static irqreturn_t dw_dp_hpd_irq_handler(int irq, void *arg)
dp->hotplug.long_hpd = true;
dp->hotplug.status = hpd;
dp->hotplug.state = GPIO_STATE_PLUG;
schedule_work(&dp->hpd_work);
}
} else if (dp->hotplug.state == GPIO_STATE_PLUG) {
if (!hpd) {
@@ -2858,9 +2857,12 @@ static irqreturn_t dw_dp_hpd_irq_handler(int irq, void *arg)
dp->hotplug.long_hpd = false;
dp->hotplug.status = hpd;
dp->hotplug.state = GPIO_STATE_PLUG;
schedule_work(&dp->hpd_work);
}
}
if (hpd)
schedule_work(&dp->hpd_work);
mutex_unlock(&dp->irq_lock);
@@ -2870,6 +2872,10 @@ static irqreturn_t dw_dp_hpd_irq_handler(int irq, void *arg)
static void dw_dp_hpd_init(struct dw_dp *dp)
{
dp->hotplug.status = dw_dp_detect_no_power(dp);
if (dp->hpd_gpio && dp->hotplug.status) {
dp->hotplug.state = GPIO_STATE_PLUG;
dp->hotplug.long_hpd = true;
}
if (dp->hpd_gpio || dp->force_hpd || dp->usbdp_hpd) {
regmap_update_bits(dp->regmap, DPTX_CCTL, FORCE_HPD,