diff options
Diffstat (limited to 'extras/recipes-kernel/linux/linux-omap-2.6.39/sakoman/0004-OMAP-DSS-DSI-Fix-DSI-PLL-power-bug.patch')
| -rw-r--r-- | extras/recipes-kernel/linux/linux-omap-2.6.39/sakoman/0004-OMAP-DSS-DSI-Fix-DSI-PLL-power-bug.patch | 64 |
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 + |