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hdmitx: revert original hpd_state mark [1/1]

Browse Source 
PD#SWPL-17710

Problem:
Suppose hdmitx already output in uboot, and next kernel boots up,
the output will disable and then enable

Solution:
When hdmitx hpd_states initializes, read edid when hpd is high

Verify:
G12/U212

Change-Id: I538b8af2d59a7b2b34739f14d0b0cb6fd89aed2e
Signed-off-by: Zongdong Jiao <zongdong.jiao@amlogic.com>
Signed-off-by: Luan Yuan <luan.yuan@amlogic.com>
This commit is contained in:
Zongdong Jiao
2019-12-04 20:11:15 +08:00
committed by Chris KIM
parent 885d844b61
commit 313dac7573
1 changed files with 8 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

15
drivers/amlogic/media/vout/hdmitx/hdmi_tx_20/hdmi_tx_main.c
View File

@@ -4311,7 +4311,6 @@ static int hdmitx_notify_callback_a(struct notifier_block *block,
static void hdmitx_get_edid(struct hdmitx_dev *hdev)
{
static int once_flag = 1;
mutex_lock(&getedid_mutex);
/* TODO hdmitx_edid_ram_buffer_clear(hdev); */
hdev->hwop.cntlddc(hdev, DDC_RESET_EDID, 0);
@@ -4336,10 +4335,6 @@ static void hdmitx_get_edid(struct hdmitx_dev *hdev)
memset(dv, 0, sizeof(struct dv_info));
pr_info("clear dv_info\n");
}
if (once_flag) {
once_flag = 0;
edidinfo_attach_to_vinfo(hdev);
}
mutex_unlock(&getedid_mutex);
}
@@ -4542,13 +4537,19 @@ static int hdmi_task_handle(void *data)
hdmitx_device, MISC_HPD_GPI_ST, 0));
hdmitx_device->hpd_state = hdmitx_extcon_hdmi->state;
hdmitx_notify_hpd(hdmitx_device->hpd_state);
extcon_set_state_sync(hdmitx_extcon_power, EXTCON_DISP_HDMI,
hdmitx_device->hpd_state);
INIT_WORK(&hdmitx_device->work_hdr, hdr_work_func);
hdmitx_device->hpd_state);
/* When init hdmi, clear the hdmitx module edid ram and edid buffer. */
hdmitx_edid_clear(hdmitx_device);
hdmitx_edid_ram_buffer_clear(hdmitx_device);
if (hdmitx_device->hpd_state) {
hdmitx_get_edid(hdmitx_device);
edidinfo_attach_to_vinfo(hdmitx_device);
}
INIT_WORK(&hdmitx_device->work_hdr, hdr_work_func);
hdmitx_device->hdmi_wq = alloc_workqueue(DEVICE_NAME,
WQ_HIGHPRI | WQ_CPU_INTENSIVE, 0);
INIT_DELAYED_WORK(&hdmitx_device->work_hpd_plugin,