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| author | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2011-04-15 11:42:59 +0400 |
|---|---|---|
| committer | Tomi Valkeinen <tomi.valkeinen@ti.com> | 2011-05-11 15:10:54 +0400 |
| commit | c94dfe05c4b6c269e445691c1fc7a9d8679ba60f (patch) | |
| tree | a83f4d48f32cfc647109c61218f99f8291a19cbf /drivers/video/omap2/dss/dsi.c | |
| parent | 89976f2990a97820b73a1768371ee505b0ffc176 (diff) | |
| download | linux-c94dfe05c4b6c269e445691c1fc7a9d8679ba60f.tar.xz | |
OMAP: DSS2: 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>
Diffstat (limited to 'drivers/video/omap2/dss/dsi.c')
| -rw-r--r-- | drivers/video/omap2/dss/dsi.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c index 5cf13f4b9e83..fe655b6ab2ab 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 */ |