This is a note to let you know that I've just added the patch titled
drm/radeon: Restore LCD backlight level on resume (>= R5xx)
to the 4.1-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:
drm-radeon-restore-lcd-backlight-level-on-resume-r5xx.patch
and it can be found in the queue-4.1 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 4281f46ef839050d2ef60348f661eb463c21cc2e Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Michel=20D=C3=A4nzer?= <[email protected]>
Date: Mon, 28 Sep 2015 18:16:31 +0900
Subject: drm/radeon: Restore LCD backlight level on resume (>= R5xx)
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
From: =?UTF-8?q?Michel=20D=C3=A4nzer?= <[email protected]>
commit 4281f46ef839050d2ef60348f661eb463c21cc2e upstream.
Instead of only enabling the backlight (which seems to set it to max
brightness), just re-set the current backlight level, which also takes
care of enabling the backlight if necessary.
Only the radeon_atom_encoder_dpms_dig part tested on a Kaveri laptop,
the radeon_atom_encoder_dpms_avivo part is only compile tested.
Signed-off-by: Michel Dänzer <[email protected]>
Signed-off-by: Alex Deucher <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/gpu/drm/radeon/atombios_encoders.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
--- a/drivers/gpu/drm/radeon/atombios_encoders.c
+++ b/drivers/gpu/drm/radeon/atombios_encoders.c
@@ -1624,8 +1624,9 @@ radeon_atom_encoder_dpms_avivo(struct dr
} else
atom_execute_table(rdev->mode_info.atom_context, index,
(uint32_t *)&args);
if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT)) {
- args.ucAction = ATOM_LCD_BLON;
- atom_execute_table(rdev->mode_info.atom_context, index,
(uint32_t *)&args);
+ struct radeon_encoder_atom_dig *dig =
radeon_encoder->enc_priv;
+
+ atombios_set_backlight_level(radeon_encoder,
dig->backlight_level);
}
break;
case DRM_MODE_DPMS_STANDBY:
@@ -1706,8 +1707,7 @@ radeon_atom_encoder_dpms_dig(struct drm_
atombios_dig_encoder_setup(encoder,
ATOM_ENCODER_CMD_DP_VIDEO_ON, 0);
}
if (radeon_encoder->devices & (ATOM_DEVICE_LCD_SUPPORT))
- atombios_dig_transmitter_setup(encoder,
-
ATOM_TRANSMITTER_ACTION_LCD_BLON, 0, 0);
+ atombios_set_backlight_level(radeon_encoder,
dig->backlight_level);
if (ext_encoder)
atombios_external_encoder_setup(encoder, ext_encoder,
ATOM_ENABLE);
break;
Patches currently in stable-queue which might be from [email protected] are
queue-4.1/drm-radeon-restore-lcd-backlight-level-on-resume-r5xx.patch
--
To unsubscribe from this list: send the line "unsubscribe stable" in
the body of a message to [email protected]
More majordomo info at http://vger.kernel.org/majordomo-info.html
