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authorTomi Valkeinen <tomi.valkeinen@ti.com>2011-05-18 11:59:21 +0300
committerTomi Valkeinen <tomi.valkeinen@ti.com>2011-07-01 12:06:43 +0300
commit525dae613638320c880afcc0d8d6dd27141fc4e4 (patch)
treed4e863cef4a21775576ae6896a1e18ee50059399 /drivers/video
parent8ef0e614b3ed2e2daf7e9cefd9a2f12652f824bc (diff)
downloadop-kernel-dev-525dae613638320c880afcc0d8d6dd27141fc4e4.zip
op-kernel-dev-525dae613638320c880afcc0d8d6dd27141fc4e4.tar.gz
OMAP: DSS2: Add FEAT_VENC_REQUIRES_TV_DAC_CLK
OMAP3430 requires an 96MHz clock to VENC's DAC, but no other OMAP needs it. Add a new feature, FEAT_VENC_REQUIRES_TV_DAC_CLK, which tells if the clock is needed on this platform, and use that feature in venc.c to decide if the clock needs enabling. Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Diffstat (limited to 'drivers/video')
-rw-r--r--drivers/video/omap2/dss/dss_features.c3
-rw-r--r--drivers/video/omap2/dss/dss_features.h1
-rw-r--r--drivers/video/omap2/dss/venc.c16
3 files changed, 13 insertions, 7 deletions
diff --git a/drivers/video/omap2/dss/dss_features.c b/drivers/video/omap2/dss/dss_features.c
index 1c18888..a588380 100644
--- a/drivers/video/omap2/dss/dss_features.c
+++ b/drivers/video/omap2/dss/dss_features.c
@@ -286,7 +286,8 @@ static const struct omap_dss_features omap3430_dss_features = {
FEAT_LCDENABLESIGNAL | FEAT_PCKFREEENABLE |
FEAT_FUNCGATED | FEAT_ROWREPEATENABLE |
FEAT_LINEBUFFERSPLIT | FEAT_RESIZECONF |
- FEAT_DSI_PLL_FREQSEL | FEAT_DSI_REVERSE_TXCLKESC,
+ FEAT_DSI_PLL_FREQSEL | FEAT_DSI_REVERSE_TXCLKESC |
+ FEAT_VENC_REQUIRES_TV_DAC_CLK,
.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 07b346f..3058e24 100644
--- a/drivers/video/omap2/dss/dss_features.h
+++ b/drivers/video/omap2/dss/dss_features.h
@@ -51,6 +51,7 @@ enum dss_feat_id {
FEAT_HDMI_CTS_SWMODE = 1 << 19,
FEAT_HANDLE_UV_SEPARATE = 1 << 20,
FEAT_ATTR2 = 1 << 21,
+ FEAT_VENC_REQUIRES_TV_DAC_CLK = 1 << 22,
};
/* DSS register field id */
diff --git a/drivers/video/omap2/dss/venc.c b/drivers/video/omap2/dss/venc.c
index e7485fc..bf0431f 100644
--- a/drivers/video/omap2/dss/venc.c
+++ b/drivers/video/omap2/dss/venc.c
@@ -38,6 +38,7 @@
#include <plat/cpu.h>
#include "dss.h"
+#include "dss_features.h"
/* Venc registers */
#define VENC_REV_ID 0x00
@@ -382,12 +383,15 @@ static void venc_reset(void)
static void venc_enable_clocks(int enable)
{
- if (enable)
- dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK | DSS_CLK_TVFCK |
- DSS_CLK_VIDFCK);
- else
- dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK | DSS_CLK_TVFCK |
- DSS_CLK_VIDFCK);
+ if (enable) {
+ dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK | DSS_CLK_TVFCK);
+ if (dss_has_feature(FEAT_VENC_REQUIRES_TV_DAC_CLK))
+ dss_clk_enable(DSS_CLK_VIDFCK);
+ } else {
+ dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK | DSS_CLK_TVFCK);
+ if (dss_has_feature(FEAT_VENC_REQUIRES_TV_DAC_CLK))
+ dss_clk_disable(DSS_CLK_VIDFCK);
+ }
}
static const struct venc_config *venc_timings_to_config(
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