This is a note to let you know that I've just added the patch titled
radeon/i2c: do not count reg index in number of i2c byte we are writing.
to the 3.12-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:
radeon-i2c-do-not-count-reg-index-in-number-of-i2c-byte-we-are-writing.patch
and it can be found in the queue-3.12 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From fae009d15a44e5f1d938340facf4b8bc7dc69a09 Mon Sep 17 00:00:00 2001
From: Jerome Glisse <jglisse@xxxxxxxxxx>
Date: Wed, 6 Nov 2013 17:42:02 -0500
Subject: radeon/i2c: do not count reg index in number of i2c byte we are writing.
From: Jerome Glisse <jglisse@xxxxxxxxxx>
commit fae009d15a44e5f1d938340facf4b8bc7dc69a09 upstream.
Useless to count the register index in number of bytes we are writing.
Fixes a regression with hw i2c enabled.
Signed-off-by: Jerome Glisse <jglisse@xxxxxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/radeon/atombios_i2c.c | 6 ++++--
1 file changed, 4 insertions(+), 2 deletions(-)
--- a/drivers/gpu/drm/radeon/atombios_i2c.c
+++ b/drivers/gpu/drm/radeon/atombios_i2c.c
@@ -56,8 +56,10 @@ static int radeon_process_i2c_ch(struct
return -EINVAL;
}
args.ucRegIndex = buf[0];
- if (num > 1)
- memcpy(&out, &buf[1], num - 1);
+ if (num > 1) {
+ num--;
+ memcpy(&out, &buf[1], num);
+ }
args.lpI2CDataOut = cpu_to_le16(out);
} else {
if (num > ATOM_MAX_HW_I2C_READ) {
Patches currently in stable-queue which might be from jglisse@xxxxxxxxxx are
queue-3.12/radeon-i2c-do-not-count-reg-index-in-number-of-i2c-byte-we-are-writing.patch
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