From: Marge Yang <marge.yang@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
The interrupt GPIO will be pulled down once
after RMI driver reads this command(Report ID:0x0A).
It will cause "Dark resume test fail" for chromebook device.
Hence, TP driver will ignore rmi_hid_read_block function once
after system resumes.
Signed-off-by: Marge Yang<marge.yang@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
---
drivers/hid/hid-rmi.c | 16 +++++++++++++---
1 file changed, 13 insertions(+), 3 deletions(-)
diff --git a/drivers/hid/hid-rmi.c b/drivers/hid/hid-rmi.c
index 311eee599ce9..236a38bfcf9a 100644
--- a/drivers/hid/hid-rmi.c
+++ b/drivers/hid/hid-rmi.c
@@ -101,7 +101,7 @@ struct rmi_data {
};
#define RMI_PAGE(addr) (((addr) >> 8) & 0xff)
-
+int ignoreonce;
static int rmi_write_report(struct hid_device *hdev, u8 *report, int len);
/**
@@ -203,7 +203,13 @@ static int rmi_hid_read_block(struct rmi_transport_dev *xport, u16 addr,
if (ret < 0)
goto exit;
}
-
+ if (ignoreonce == 1) {
+ dev_err(&hdev->dev,
+ "ignoreonce (%d)\n",
+ ignoreonce);
+ ignoreonce = 0;
+ goto exit;
+ }
for (retries = 5; retries > 0; retries--) {
data->writeReport[0] = RMI_READ_ADDR_REPORT_ID;
data->writeReport[1] = 0; /* old 1 byte read count */
@@ -468,8 +474,12 @@ static int rmi_post_resume(struct hid_device *hdev)
ret = hid_hw_open(hdev);
if (ret)
return ret;
-
+ // Avoid to read rmi_hid_read_block once after system resumes.
+ // The interrupt will be pulled down
+ // after RMI Read command(Report ID:0x0A).
+ ignoreonce = 1;
ret = rmi_reset_attn_mode(hdev);
+ ignoreonce = 0;
if (ret)
goto out;
--
2.22.0.windows.1
