This is a note to let you know that I've just added the patch titled
Input: raydium_ts_i2c - do not send zero length
to the 5.11-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
input-raydium_ts_i2c-do-not-send-zero-length.patch
and it can be found in the queue-5.11 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From fafd320ae51b9c72d371585b2501f86640ea7b7d Mon Sep 17 00:00:00 2001
From: "jeffrey.lin" <jeffrey.lin@xxxxxxxxxx>
Date: Tue, 15 Dec 2020 10:50:12 -0800
Subject: Input: raydium_ts_i2c - do not send zero length
From: jeffrey.lin <jeffrey.lin@xxxxxxxxxx>
commit fafd320ae51b9c72d371585b2501f86640ea7b7d upstream.
Add default write command package to prevent i2c quirk error of zero
data length as Raydium touch firmware update is executed.
Signed-off-by: jeffrey.lin <jeffrey.lin@xxxxxxxxxx>
Link: https://lore.kernel.org/r/1608031217-7247-1-git-send-email-jeffrey.lin@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/input/touchscreen/raydium_i2c_ts.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/input/touchscreen/raydium_i2c_ts.c
+++ b/drivers/input/touchscreen/raydium_i2c_ts.c
@@ -445,6 +445,7 @@ static int raydium_i2c_write_object(stru
enum raydium_bl_ack state)
{
int error;
+ static const u8 cmd[] = { 0xFF, 0x39 };
error = raydium_i2c_send(client, RM_CMD_BOOT_WRT, data, len);
if (error) {
@@ -453,7 +454,7 @@ static int raydium_i2c_write_object(stru
return error;
}
- error = raydium_i2c_send(client, RM_CMD_BOOT_ACK, NULL, 0);
+ error = raydium_i2c_send(client, RM_CMD_BOOT_ACK, cmd, sizeof(cmd));
if (error) {
dev_err(&client->dev, "Ack obj command failed: %d\n", error);
return error;
Patches currently in stable-queue which might be from jeffrey.lin@xxxxxxxxxx are
queue-5.11/input-raydium_ts_i2c-do-not-send-zero-length.patch
