xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

OMAPDSS: Add support for DPI source selection

Browse Source 
We can select the video source for DPI output as follows:

OMAP2/3: always LCD1
OMAP4: LCD2 or DIGIT
OMAP5: LCD1/LCD2/LCD3/DIGIT

This patch adds support to select the source, and makes dpi.c call the
function to set the source.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: David Anders <x0132446@ti.com>
This commit is contained in:
Tomi Valkeinen
2012-09-21 12:09:54 +03:00
parent 84273a9593
commit de09e45555
3 changed files with 71 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

65
drivers/video/omap2/dss/dss.c
View File

@@ -69,6 +69,7 @@ struct dss_features {
u8 fck_div_max;
u8 dss_fck_multiplier;
const char *clk_name;
int (*dpi_select_source)(enum omap_channel channel);
};
static struct {
@@ -623,6 +624,65 @@ enum dss_hdmi_venc_clk_source_select dss_get_hdmi_venc_clk_source(void)
return REG_GET(DSS_CONTROL, 15, 15);
}
static int dss_dpi_select_source_omap2_omap3(enum omap_channel channel)
{
if (channel != OMAP_DSS_CHANNEL_LCD)
return -EINVAL;
return 0;
}
static int dss_dpi_select_source_omap4(enum omap_channel channel)
{
int val;
switch (channel) {
case OMAP_DSS_CHANNEL_LCD2:
val = 0;
break;
case OMAP_DSS_CHANNEL_DIGIT:
val = 1;
break;
default:
return -EINVAL;
}
REG_FLD_MOD(DSS_CONTROL, val, 17, 17);
return 0;
}
static int dss_dpi_select_source_omap5(enum omap_channel channel)
{
int val;
switch (channel) {
case OMAP_DSS_CHANNEL_LCD:
val = 1;
break;
case OMAP_DSS_CHANNEL_LCD2:
val = 2;
break;
case OMAP_DSS_CHANNEL_LCD3:
val = 3;
break;
case OMAP_DSS_CHANNEL_DIGIT:
val = 0;
break;
default:
return -EINVAL;
}
REG_FLD_MOD(DSS_CONTROL, val, 17, 16);
return 0;
}
int dss_dpi_select_source(enum omap_channel channel)
{
return dss.feat->dpi_select_source(channel);
}
static int dss_get_clocks(void)
{
struct clk *clk;
@@ -701,30 +761,35 @@ static const struct dss_features omap24xx_dss_feats __initconst = {
.fck_div_max = 16,
.dss_fck_multiplier = 2,
.clk_name = NULL,
.dpi_select_source = &dss_dpi_select_source_omap2_omap3,
};
static const struct dss_features omap34xx_dss_feats __initconst = {
.fck_div_max = 16,
.dss_fck_multiplier = 2,
.clk_name = "dpll4_m4_ck",
.dpi_select_source = &dss_dpi_select_source_omap2_omap3,
};
static const struct dss_features omap3630_dss_feats __initconst = {
.fck_div_max = 32,
.dss_fck_multiplier = 1,
.clk_name = "dpll4_m4_ck",
.dpi_select_source = &dss_dpi_select_source_omap2_omap3,
};
static const struct dss_features omap44xx_dss_feats __initconst = {
.fck_div_max = 32,
.dss_fck_multiplier = 1,
.clk_name = "dpll_per_m5x2_ck",
.dpi_select_source = &dss_dpi_select_source_omap4,
};
static const struct dss_features omap54xx_dss_feats __initconst = {
.fck_div_max = 64,
.dss_fck_multiplier = 1,
.clk_name = "dpll_per_h12x2_ck",
.dpi_select_source = &dss_dpi_select_source_omap5,
};
static int __init dss_init_features(struct device *dev)