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drm/rockchip: dw-dp: Support force hpd

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Signed-off-by: Wyon Bi <bivvy.bi@rock-chips.com>
Change-Id: Iaa4bcb049ae1634b26f1f1ad232fbd574d870b2e
This commit is contained in:
Wyon Bi
2022-05-03 07:20:39 +00:00
committed by Tao Huang
parent da1c2c4a2c
commit 130d976f44
1 changed files with 4 additions and 1 deletions
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5
drivers/gpu/drm/rockchip/dw-dp.c
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@@ -273,6 +273,7 @@ struct dw_dp {
int id;
struct work_struct hpd_work;
struct gpio_desc *hpd_gpio;
bool force_hpd;
struct dw_dp_hotplug hotplug;
struct mutex irq_lock;
struct extcon_dev *extcon;
@@ -1734,7 +1735,7 @@ static void dw_dp_hpd_init(struct dw_dp *dp)
{
dp->hotplug.status = dw_dp_detect(dp);
if (dp->hpd_gpio) {
if (dp->hpd_gpio || dp->force_hpd) {
regmap_update_bits(dp->regmap, DPTX_CCTL, FORCE_HPD,
FIELD_PREP(FORCE_HPD, 1));
return;
@@ -3124,6 +3125,8 @@ static int dw_dp_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, dp);
dp->force_hpd = device_property_read_bool(dev, "force-hpd");
if (device_property_read_bool(dev, "split-mode")) {
struct dw_dp *secondary = dw_dp_find_by_id(dev->driver, !dp->id);