Attachment 601782 Details for Bug 845077 – [PATCH 1/4] drm/i915: pnv has a backlight polarity control bit, too

[patch] [PATCH 1/4] drm/i915: pnv has a backlight polarity control bit, too

drm-i915-0001-pnv-control-bit.patch (text/plain), 1.11 KB, created by Lorenzo Villani on 2012-08-01 16:47:57 UTC

(hide)

Description:

Filename:

MIME Type:

Creator: Lorenzo Villani

Created: 2012-08-01 16:47:57 UTC

Size: 1.11 KB

patch

obsolete

>From fd076369add8ec6309ebed4515f1a0a1fb60600c Mon Sep 17 00:00:00 2001
>From: Daniel Vetter <daniel.vetter@ffwll.ch>
>Date: Tue, 5 Jun 2012 10:07:08 +0200
>Subject: [PATCH 1/1] drm/i915: pnv has a backlight polarity control bit, too
>
>We already correctly ignore bit0 on gen < 4, now we also now why ;-)
>I've decided that losing that single bit of precision isn't worth the
>trouble to sprinkle IS_PINEVIEW checks all over the backlight control
>code - that code is way too fragile imo.
>
>Signed-Off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
>
>Signed-off-by: Kamal Mostafa <kamal@canonical.com>
>---
> drivers/gpu/drm/i915/i915_reg.h |    2 ++
> 1 files changed, 2 insertions(+), 0 deletions(-)
>
>diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
>index fd53122..23d0c4d 100644
>--- a/drivers/gpu/drm/i915/i915_reg.h
>+++ b/drivers/gpu/drm/i915/i915_reg.h
>@@ -1656,6 +1656,8 @@
>  */
> #define   BACKLIGHT_DUTY_CYCLE_SHIFT		(0)
> #define   BACKLIGHT_DUTY_CYCLE_MASK		(0xffff)
>+#define   BACKLIGHT_DUTY_CYCLE_MASK_PNV		(0xfffe)
>+#define   BLM_POLARITY_PNV			(1 << 0) /* pnv only */
> 
> #define BLC_HIST_CTL		0x61260
> 
>-- 
>1.7.0.4
>

Actions: View | Diff

Attachments on bug 845077: 601782 | 601783