1 files changed, 64 insertions, 0 deletions

diff --git a/extras/recipes-kernel/linux/linux-omap-2.6.39/sakoman/0004-OMAP-DSS-DSI-Fix-DSI-PLL-power-bug.patch b/extras/recipes-kernel/linux/linux-omap-2.6.39/sakoman/0004-OMAP-DSS-DSI-Fix-DSI-PLL-power-bug.patch
new file mode 100644
index 00000000..8c2d6e6c
--- /dev/null
+++ b/extras/recipes-kernel/linux/linux-omap-2.6.39/sakoman/0004-OMAP-DSS-DSI-Fix-DSI-PLL-power-bug.patch
@@ -0,0 +1,64 @@
+From 4a56fbcabd128dbd07895e5167fd131299a1391c Mon Sep 17 00:00:00 2001
+From: Tomi Valkeinen <tomi.valkeinen@ti.com>
+Date: Fri, 15 Apr 2011 10:42:59 +0300
+Subject: [PATCH 04/32] OMAP: DSS: DSI: Fix DSI PLL power bug
+
+OMAP3630 has a HW bug causing DSI PLL power command POWER_ON_DIV (0x3)
+to not work properly. The bug prevents us from enabling DSI PLL power
+only to HS divider block.
+
+This patch adds a dss feature for the bug and converts POWER_ON_DIV
+requests to POWER_ON_ALL (0x2).
+
+Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
+---
+ drivers/video/omap2/dss/dsi.c          |    5 +++++
+ drivers/video/omap2/dss/dss_features.c |    2 +-
+ drivers/video/omap2/dss/dss_features.h |    2 ++
+ 3 files changed, 8 insertions(+), 1 deletions(-)
+
+diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
+index 1464ac4..cbd9ca4 100644
+--- a/drivers/video/omap2/dss/dsi.c
++++ b/drivers/video/omap2/dss/dsi.c
+@@ -1059,6 +1059,11 @@ static int dsi_pll_power(enum dsi_pll_power_state state)
+ {
+        int t = 0;
+ 
++       /* DSI-PLL power command 0x3 is not working */
++       if (dss_has_feature(FEAT_DSI_PLL_PWR_BUG) &&
++                       state == DSI_PLL_POWER_ON_DIV)
++               state = DSI_PLL_POWER_ON_ALL;
++
+        REG_FLD_MOD(DSI_CLK_CTRL, state, 31, 30);       /* PLL_PWR_CMD */
+ 
+        /* PLL_PWR_STATUS */
+diff --git a/drivers/video/omap2/dss/dss_features.c b/drivers/video/omap2/dss/dss_features.c
+index aa16222..8c50e18 100644
+--- a/drivers/video/omap2/dss/dss_features.c
++++ b/drivers/video/omap2/dss/dss_features.c
+@@ -271,7 +271,7 @@ static struct omap_dss_features omap3630_dss_features = {
+                FEAT_LCDENABLESIGNAL | FEAT_PCKFREEENABLE |
+                FEAT_PRE_MULT_ALPHA | FEAT_FUNCGATED |
+                FEAT_ROWREPEATENABLE | FEAT_LINEBUFFERSPLIT |
+-               FEAT_RESIZECONF,
++               FEAT_RESIZECONF | FEAT_DSI_PLL_PWR_BUG,
+ 
+        .num_mgrs = 2,
+        .num_ovls = 3,
+diff --git a/drivers/video/omap2/dss/dss_features.h b/drivers/video/omap2/dss/dss_features.h
+index 12e9c4e..37922ce 100644
+--- a/drivers/video/omap2/dss/dss_features.h
++++ b/drivers/video/omap2/dss/dss_features.h
+@@ -40,6 +40,8 @@ enum dss_feat_id {
+        /* Independent core clk divider */
+        FEAT_CORE_CLK_DIV       = 1 << 11,
+        FEAT_LCD_CLK_SRC        = 1 << 12,
++       /* DSI-PLL power command 0x3 is not working */
++       FEAT_DSI_PLL_PWR_BUG    = 1 << 13,
+ };
+ 
+ /* DSS register field id */
+-- 
+1.6.6.1
+