From: Alex Deucher <alexdeucher@gmail.com>
Date: Fri, 9 Apr 2010 19:31:56 +0000 (-0400)
Subject: drm/radeon/kms: adjust pll settings for tv
X-Git-Tag: v2.6.34-rc5~6^2~4
X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=a1a4b23b66039c814c3d3a9a28d76d34800eadc5;p=uclinux-h8%2Flinux.git

drm/radeon/kms: adjust pll settings for tv

May fix fdo bug 26582.

Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
---

diff --git a/drivers/gpu/drm/radeon/atombios_crtc.c b/drivers/gpu/drm/radeon/atombios_crtc.c
index fd4ef6d18849..a87990b3ae84 100644
--- a/drivers/gpu/drm/radeon/atombios_crtc.c
+++ b/drivers/gpu/drm/radeon/atombios_crtc.c
@@ -521,6 +521,10 @@ static u32 atombios_adjust_pll(struct drm_crtc *crtc,
 				/* DVO wants 2x pixel clock if the DVO chip is in 12 bit mode */
 				if (radeon_encoder->encoder_id == ENCODER_OBJECT_ID_INTERNAL_KLDSCP_DVO1)
 					adjusted_clock = mode->clock * 2;
+				if (radeon_encoder->active_device & (ATOM_DEVICE_TV_SUPPORT)) {
+					pll->algo = PLL_ALGO_LEGACY;
+					pll->flags |= RADEON_PLL_PREFER_CLOSEST_LOWER;
+				}
 			} else {
 				if (encoder->encoder_type != DRM_MODE_ENCODER_DAC)
 					pll->flags |= RADEON_PLL_NO_ODD_POST_DIV;