This is a note to let you know that I've just added the patch titled
drm/radeon/kms: add workaround for dce3 ddc line vbios bug
to the 2.6.36-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-kms-add-workaround-for-dce3-ddc-line-vbios-bug.patch
and it can be found in the queue-2.6.36 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <[email protected]> know about it.
>From 3074adc8b6d9bf28b574a58241b958057a69a7a0 Mon Sep 17 00:00:00 2001
From: Alex Deucher <[email protected]>
Date: Tue, 30 Nov 2010 00:15:10 -0500
Subject: drm/radeon/kms: add workaround for dce3 ddc line vbios bug
From: Alex Deucher <[email protected]>
commit 3074adc8b6d9bf28b574a58241b958057a69a7a0 upstream.
fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=23752
Signed-off-by: Alex Deucher <[email protected]>
Signed-off-by: Dave Airlie <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
---
drivers/gpu/drm/radeon/radeon_atombios.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -98,6 +98,14 @@ static inline struct radeon_i2c_bus_rec
}
}
+ /* some DCE3 boards have bad data for this entry */
+ if (ASIC_IS_DCE3(rdev)) {
+ if ((i == 4) &&
+ (gpio->usClkMaskRegisterIndex == 0x1fda) &&
+ (gpio->sucI2cId.ucAccess == 0x94))
+ gpio->sucI2cId.ucAccess = 0x14;
+ }
+
if (gpio->sucI2cId.ucAccess == id) {
i2c.mask_clk_reg =
le16_to_cpu(gpio->usClkMaskRegisterIndex) * 4;
i2c.mask_data_reg =
le16_to_cpu(gpio->usDataMaskRegisterIndex) * 4;
@@ -174,6 +182,14 @@ void radeon_atombios_i2c_init(struct rad
}
}
+ /* some DCE3 boards have bad data for this entry */
+ if (ASIC_IS_DCE3(rdev)) {
+ if ((i == 4) &&
+ (gpio->usClkMaskRegisterIndex == 0x1fda) &&
+ (gpio->sucI2cId.ucAccess == 0x94))
+ gpio->sucI2cId.ucAccess = 0x14;
+ }
+
i2c.mask_clk_reg =
le16_to_cpu(gpio->usClkMaskRegisterIndex) * 4;
i2c.mask_data_reg =
le16_to_cpu(gpio->usDataMaskRegisterIndex) * 4;
i2c.en_clk_reg =
le16_to_cpu(gpio->usClkEnRegisterIndex) * 4;
Patches currently in stable-queue which might be from [email protected] are
queue-2.6.36/drm-radeon-kms-fix-regression-in-rs4xx-i2c-setup.patch
queue-2.6.36/drm-radeon-kms-fix-i2c-pad-masks-on-rs4xx.patch
queue-2.6.36/drm-radeon-kms-fix-2d-tile-height-alignment-in-the-r600-cs-checker.patch
queue-2.6.36/drm-radeon-kms-add-workaround-for-dce3-ddc-line-vbios-bug.patch
queue-2.6.36/drm-radeon-kms-fix-resume-regression-for-some-r5xx-laptops.patch
queue-2.6.36/drm-radeon-kms-fix-thermal-sensor-reporting-on-rv6xx.patch
queue-2.6.36/drm-radeon-kms-fix-interlaced-and-doublescan-handling.patch
queue-2.6.36/drm-radeon-kms-make-sure-blit-addr-masks-are-64-bit.patch
queue-2.6.36/drm-radeon-kms-register-an-i2c-adapter-name-for-the-dp-aux-bus.patch
queue-2.6.36/drm-radeon-kms-fix-handling-of-tex-lookup-disable-in-cs-checker-on-r2xx.patch
queue-2.6.36/drm-radeon-kms-properly-compute-group_size-on-6xx-7xx.patch
queue-2.6.36/drm-radeon-kms-mc-vram-map-needs-to-be-pci-aperture-size.patch
queue-2.6.36/drm-radeon-kms-atom-set-sane-defaults-in-atombios_get_encoder_mode.patch
queue-2.6.36/drm-radeon-kms-fix-typos-in-disabled-vbios-code.patch
queue-2.6.36/drm-radeon-kms-don-t-disable-shared-encoders-on-pre-dce3-display-blocks.patch
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