Attachment 33010 Details for Bug 26358 – 2/2 add lvds pll quirk for toshiba

[patch] 2/2 add lvds pll quirk for toshiba

0002-drm-radeon-kms-add-pll-quirk-for-toshiba-laptop-pan.patch (text/plain), 1.72 KB, created by Alex Deucher on 2010-02-02 09:26:25 UTC

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Creator: Alex Deucher

Created: 2010-02-02 09:26:25 UTC

Size: 1.72 KB

patch

obsolete

>From 42e9af83b68dce08ae41db5e5779fad7aebf00e5 Mon Sep 17 00:00:00 2001
>From: Alex Deucher <alexdeucher@gmail.com>
>Date: Tue, 2 Feb 2010 12:06:28 -0500
>Subject: [PATCH] drm/radeon/kms: add pll quirk for toshiba laptop panel
>
>The panel on the Toshiba A300-1BU laptop does not like the
>PLL dividers selected by the avivo pll algo, but works fine
>using the older method.  Add a quirk to handle it.
>
>Should fix fdo bug 26358.
>
>Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
>---
> drivers/gpu/drm/radeon/radeon_atombios.c |   18 ++++++++++++++++++
> 1 files changed, 18 insertions(+), 0 deletions(-)
>
>diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c
>index 667f099..d33fb41 100644
>--- a/drivers/gpu/drm/radeon/radeon_atombios.c
>+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
>@@ -1073,6 +1073,21 @@ static struct radeon_atom_ss *radeon_atombios_get_ss_info(struct
> 	return ss;
> }
> 
>+static void radeon_atom_apply_lvds_quirks(struct drm_device *dev,
>+					  struct radeon_encoder_atom_dig *lvds)
>+{
>+
>+	/* Toshiba A300-1BU laptop panel doesn't like new pll divider algo */
>+	if ((dev->pdev->device == 0x95c4) &&
>+	    (dev->pdev->subsystem_vendor == 0x1179) &&
>+	    (dev->pdev->subsystem_device == 0xff50)) {
>+		if ((lvds->native_mode.hdisplay == 1280) &&
>+		    (lvds->native_mode.vdisplay == 800))
>+			lvds->pll_algo = PLL_ALGO_LEGACY;
>+	}
>+
>+}
>+
> union lvds_info {
> 	struct _ATOM_LVDS_INFO info;
> 	struct _ATOM_LVDS_INFO_V12 info_12;
>@@ -1151,6 +1166,9 @@ struct radeon_encoder_atom_dig *radeon_atombios_get_lvds_info(struct
> 		} else
> 			lvds->pll_algo = PLL_ALGO_LEGACY;
> 
>+		/* LVDS quirks */
>+		radeon_atom_apply_lvds_quirks(dev, lvds);
>+
> 		encoder->native_mode = lvds->native_mode;
> 	}
> 	return lvds;
>-- 
>1.5.6.3
>

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Attachments on bug 26358: 32960 | 32961 | 32962 | 32992 | 33009 | 33010 | 33255 | 33334

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