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video/drm: analogix_dp: Implement detect callback 

Change-Id: I1e6746768092747920afcb3af07e36c1ecae9856
Signed-off-by: Wyon Bi <bivvy.bi@rock-chips.com>
This commit is contained in:
Wyon Bi 2020-08-25 10:49:43 +08:00
parent 2b75673259
commit d90a0d9f94
3 changed files with 24 additions and 11 deletions
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11
drivers/video/drm/analogix_dp.c
View File

@ -900,11 +900,20 @@ static int analogix_dp_connector_disable(struct display_state *state)
return 0;
}
static int analogix_dp_connector_detect(struct display_state *state)
{
struct connector_state *conn_state = &state->conn_state;
struct analogix_dp_device *dp = dev_get_priv(conn_state->dev);
return analogix_dp_detect(dp);
}
static const struct rockchip_connector_funcs analogix_dp_connector_funcs = {
.init = analogix_dp_connector_init,
.get_edid = analogix_dp_connector_get_edid,
.enable = analogix_dp_connector_enable,
.disable = analogix_dp_connector_disable,
.detect = analogix_dp_connector_detect,
};
static int analogix_dp_probe(struct udevice *dev)
@ -933,6 +942,8 @@ static int analogix_dp_probe(struct udevice *dev)
return ret;
}
dp->force_hpd = dev_read_bool(dev, "force-hpd");
dp->plat_data.dev_type = ROCKCHIP_DP;
dp->plat_data.subdev_type = pdata->chip_type;
/*

3
drivers/video/drm/analogix_dp.h
View File

@ -1075,6 +1075,7 @@ struct analogix_dp_device {
void *grf;
struct reset_ctl reset;
struct gpio_desc hpd_gpio;
bool force_hpd;
struct video_info video_info;
struct link_train link_train;
struct drm_display_mode *mode;
@ -1105,7 +1106,7 @@ enum dp_irq_type analogix_dp_get_irq_type(struct analogix_dp_device *dp);
void analogix_dp_clear_hotplug_interrupts(struct analogix_dp_device *dp);
void analogix_dp_reset_aux(struct analogix_dp_device *dp);
void analogix_dp_init_aux(struct analogix_dp_device *dp);
int analogix_dp_get_plug_in_status(struct analogix_dp_device *dp);
int analogix_dp_detect(struct analogix_dp_device *dp);
void analogix_dp_enable_sw_function(struct analogix_dp_device *dp);
int analogix_dp_start_aux_transaction(struct analogix_dp_device *dp);
int analogix_dp_write_byte_to_dpcd(struct analogix_dp_device *dp,

21
drivers/video/drm/analogix_dp_reg.c
View File

@ -495,20 +495,21 @@ void analogix_dp_init_aux(struct analogix_dp_device *dp)
analogix_dp_write(dp, ANALOGIX_DP_FUNC_EN_2, reg);
}
int analogix_dp_get_plug_in_status(struct analogix_dp_device *dp)
int analogix_dp_detect(struct analogix_dp_device *dp)
{
u32 reg;
if (dm_gpio_is_valid(&dp->hpd_gpio)) {
if (dm_gpio_get_value(&dp->hpd_gpio))
return 0;
} else {
reg = analogix_dp_read(dp, ANALOGIX_DP_SYS_CTL_3);
if (reg & HPD_STATUS)
return 0;
}
if (dm_gpio_is_valid(&dp->hpd_gpio))
return dm_gpio_get_value(&dp->hpd_gpio);
return -EINVAL;
if (dp->force_hpd)
analogix_dp_force_hpd(dp);
reg = analogix_dp_read(dp, ANALOGIX_DP_SYS_CTL_3);
if (reg & HPD_STATUS)
return 1;
return 0;
}
void analogix_dp_enable_sw_function(struct analogix_dp_device *dp)