Hi Pin-yen, 

                I want to upload the patch to let the patch could be review on 
website, https://chromium-review.googlesource.com/dashboard/self
                But the message ' No Contributor Agreement on file for user 
Allen Chen ' seems no longer have Permissions for this file, right?
                It have an issue need to update the ite-it6505.c,       Could 
you give me some advising?
                Thank you very much.

BR Kuro Chung
ite@ite-XPS-13-9360:~/project/it6505/google/source/cros/src/third_party/kernel/v5.15$
 git push cros HEAD:refs/for/chromeos-5.15
remote: PERMISSION_DENIED: The caller does not have permission
remote: [type.googleapis.com/google.rpc.LocalizedMessage]
remote: locale: "en-US"
remote: message: "No Contributor Agreement on file for user Allen Chen 
<[email protected]> (id=1321515)"
remote:
remote: [type.googleapis.com/google.rpc.RequestInfo]
remote: request_id: "3c171f2fe78e458ebbb2990bab93cfb3"
remote:
remote: [type.googleapis.com/google.rpc.RequestInfo]
remote: request_id: "c5662672e00f42e1b6562149270c7864"
fatal: unable to access 
'https://chromium.googlesource.com/chromiumos/third_party/kernel/': The 
requested URL returned error: 403

BR Kuro Chung

-----Original Message-----
From: Kuro Chung (鐘仕廷) <[email protected]> 
Sent: Tuesday, February 6, 2024 11:19 AM
Cc: Allen Chen <[email protected]>; Pin-yen Lin <[email protected]>; 
Kuro Chung (鐘仕廷) <[email protected]>; Kenneth Hung (洪家倫) 
<[email protected]>; Andrzej Hajda <[email protected]>; Neil Armstrong 
<[email protected]>; Robert Foss <[email protected]>; Laurent 
Pinchart <[email protected]>; Jonas Karlman <[email protected]>; 
Jernej Skrabec <[email protected]>; David Airlie <[email protected]>; 
Daniel Vetter <[email protected]>; open list:DRM DRIVERS 
<[email protected]>; open list <[email protected]>
Subject: [PATCH] UPSTREAM: drm/bridge: it6505: fix hibernate to resume no 
display issue

From: allen chen <[email protected]>

Change-Id: Iaa3cd9da92a625496f579d87d0ab74ca9c4937c4
---
 drivers/gpu/drm/bridge/ite-it6505.c | 42 ++++++++++++++++++++++-------
 1 file changed, 33 insertions(+), 9 deletions(-)

diff --git a/drivers/gpu/drm/bridge/ite-it6505.c 
b/drivers/gpu/drm/bridge/ite-it6505.c
index b53da9bb65a1..07883001e6ca 100644
--- a/drivers/gpu/drm/bridge/ite-it6505.c
+++ b/drivers/gpu/drm/bridge/ite-it6505.c
@@ -1318,6 +1318,8 @@ static void it6505_video_reset(struct it6505 *it6505)
        it6505_set_bits(it6505, REG_DATA_MUTE_CTRL, EN_VID_MUTE, EN_VID_MUTE);
        it6505_set_bits(it6505, REG_INFOFRAME_CTRL, EN_VID_CTRL_PKT, 0x00);
        it6505_set_bits(it6505, REG_RESET_CTRL, VIDEO_RESET, VIDEO_RESET);
+       it6505_set_bits(it6505, REG_VID_BUS_CTRL1, TX_FIFO_RESET, 0x02);
+       it6505_set_bits(it6505, REG_VID_BUS_CTRL1, TX_FIFO_RESET, 0x00);
        it6505_set_bits(it6505, REG_501_FIFO_CTRL, RST_501_FIFO, RST_501_FIFO);
        it6505_set_bits(it6505, REG_501_FIFO_CTRL, RST_501_FIFO, 0x00);
        it6505_set_bits(it6505, REG_RESET_CTRL, VIDEO_RESET, 0x00); @@ -2480,10 
+2482,6 @@ static void it6505_irq_video_fifo_error(struct it6505 *it6505)
        struct device *dev = &it6505->client->dev;
 
        DRM_DEV_DEBUG_DRIVER(dev, "video fifo overflow interrupt");
-       it6505->auto_train_retry = AUTO_TRAIN_RETRY;
-       flush_work(&it6505->link_works);
-       it6505_stop_hdcp(it6505);
-       it6505_video_reset(it6505);
 }
 
 static void it6505_irq_io_latch_fifo_overflow(struct it6505 *it6505) @@ 
-2491,10 +2489,6 @@ static void it6505_irq_io_latch_fifo_overflow(struct it6505 
*it6505)
        struct device *dev = &it6505->client->dev;
 
        DRM_DEV_DEBUG_DRIVER(dev, "IO latch fifo overflow interrupt");
-       it6505->auto_train_retry = AUTO_TRAIN_RETRY;
-       flush_work(&it6505->link_works);
-       it6505_stop_hdcp(it6505);
-       it6505_video_reset(it6505);
 }
 
 static bool it6505_test_bit(unsigned int bit, const unsigned int *addr) @@ 
-2522,7 +2516,7 @@ static irqreturn_t it6505_int_threaded_handler(int unused, 
void *data)
                { BIT_INT_VID_FIFO_ERROR, it6505_irq_video_fifo_error },
                { BIT_INT_IO_FIFO_OVERFLOW, it6505_irq_io_latch_fifo_overflow },
        };
-       int int_status[3], i;
+       int int_status[3], i, reg_0d;
 
        if (it6505->enable_drv_hold || !it6505->powered)
                return IRQ_HANDLED;
@@ -2550,6 +2544,36 @@ static irqreturn_t it6505_int_threaded_handler(int 
unused, void *data)
                        if (it6505_test_bit(irq_vec[i].bit, (unsigned int 
*)int_status))
                                irq_vec[i].handler(it6505);
                }
+
+               if ((it6505_test_bit(irq_vec[9].bit, (unsigned int 
*)int_status)) ||
+                       (it6505_test_bit(irq_vec[10].bit, (unsigned int 
*)int_status))) {
+                       it6505->auto_train_retry = AUTO_TRAIN_RETRY;
+                       flush_work(&it6505->link_works);
+                       it6505_stop_hdcp(it6505);
+                       it6505_video_reset(it6505);
+
+                       DRM_DEV_DEBUG_DRIVER(dev, "Video Error reset wait 
video...");
+
+                       for (i = 0; i < 10; i++) {
+                               usleep_range(10000, 11000);
+                               int_status[2] = it6505_read(it6505, 
INT_STATUS_03);
+                               reg_0d = it6505_read(it6505, REG_SYSTEM_STS);
+                               it6505_write(it6505, INT_STATUS_03, 
int_status[2]);
+
+                               DRM_DEV_DEBUG_DRIVER(dev, "reg08 = 0x%02x", 
int_status[2]);
+                               DRM_DEV_DEBUG_DRIVER(dev, "reg0D = 0x%02x", 
reg_0d);
+                               if ((reg_0d & VIDEO_STB) && (reg_0d >= 0))
+                                       break;
+
+                               if ((it6505_test_bit(irq_vec[9].bit, (unsigned 
int *)int_status)) || (it6505_test_bit(irq_vec[10].bit, (unsigned int 
*)int_status))) {
+                                       it6505_video_reset(it6505);
+                                       DRM_DEV_DEBUG_DRIVER(dev, "Video Error 
reset wait video (%d)", i);
+                               }
+
+                       }
+
+               }
+
        }
 
        pm_runtime_put_sync(dev);
--
2.25.1

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