From: Rodrigo Vivi <rodrigo.v...@gmail.com>

TV Out refresh rate was half of the specification for almost all modes.
Due to this reason pixel clock was so low for some modes causing flickering 
screen.

Upstream patch:
commit 23bd15ec662344dc10e9918fdd0dbc58bc71526d
Author: Rodrigo Vivi <rodrigo.v...@gmail.com>
Date:   Wed Dec 14 21:10:06 2011 -0200

    drm/i915: Fix TV Out refresh rate.

Signed-off-by: Rodrigo Vivi <rodrigo.v...@gmail.com>
Reviewed-by: Jesse Barnes <jbar...@virtuousgeek.org>
Signed-off-by: Keith Packard <kei...@keithp.com>
Signed-off-by: Eugeni Dodonov <eugeni.dodo...@intel.com>
---
 drivers/gpu/drm/i915/intel_tv.c |   16 ++++++++--------
 1 files changed, 8 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_tv.c b/drivers/gpu/drm/i915/intel_tv.c
index f3c6a9a..2b1fcad 100644
--- a/drivers/gpu/drm/i915/intel_tv.c
+++ b/drivers/gpu/drm/i915/intel_tv.c
@@ -417,7 +417,7 @@ static const struct tv_mode tv_modes[] = {
        {
                .name           = "NTSC-M",
                .clock          = 108000,
-               .refresh        = 29970,
+               .refresh        = 59940,
                .oversample     = TV_OVERSAMPLE_8X,
                .component_only = 0,
                /* 525 Lines, 60 Fields, 15.734KHz line, Sub-Carrier 3.580MHz */
@@ -460,7 +460,7 @@ static const struct tv_mode tv_modes[] = {
        {
                .name           = "NTSC-443",
                .clock          = 108000,
-               .refresh        = 29970,
+               .refresh        = 59940,
                .oversample     = TV_OVERSAMPLE_8X,
                .component_only = 0,
                /* 525 Lines, 60 Fields, 15.734KHz line, Sub-Carrier 4.43MHz */
@@ -502,7 +502,7 @@ static const struct tv_mode tv_modes[] = {
        {
                .name           = "NTSC-J",
                .clock          = 108000,
-               .refresh        = 29970,
+               .refresh        = 59940,
                .oversample     = TV_OVERSAMPLE_8X,
                .component_only = 0,
 
@@ -545,7 +545,7 @@ static const struct tv_mode tv_modes[] = {
        {
                .name           = "PAL-M",
                .clock          = 108000,
-               .refresh        = 29970,
+               .refresh        = 59940,
                .oversample     = TV_OVERSAMPLE_8X,
                .component_only = 0,
 
@@ -589,7 +589,7 @@ static const struct tv_mode tv_modes[] = {
                /* 625 Lines, 50 Fields, 15.625KHz line, Sub-Carrier 4.434MHz */
                .name       = "PAL-N",
                .clock          = 108000,
-               .refresh        = 25000,
+               .refresh        = 50000,
                .oversample     = TV_OVERSAMPLE_8X,
                .component_only = 0,
 
@@ -634,7 +634,7 @@ static const struct tv_mode tv_modes[] = {
                /* 625 Lines, 50 Fields, 15.625KHz line, Sub-Carrier 4.434MHz */
                .name       = "PAL",
                .clock          = 108000,
-               .refresh        = 25000,
+               .refresh        = 50000,
                .oversample     = TV_OVERSAMPLE_8X,
                .component_only = 0,
 
@@ -821,7 +821,7 @@ static const struct tv_mode tv_modes[] = {
        {
                .name       = "1080i@50Hz",
                .clock          = 148800,
-               .refresh        = 25000,
+               .refresh        = 50000,
                .oversample     = TV_OVERSAMPLE_2X,
                .component_only = 1,
 
@@ -847,7 +847,7 @@ static const struct tv_mode tv_modes[] = {
        {
                .name       = "1080i@60Hz",
                .clock          = 148800,
-               .refresh        = 30000,
+               .refresh        = 60000,
                .oversample     = TV_OVERSAMPLE_2X,
                .component_only = 1,
 
-- 
1.7.8.4

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