OMAP4: DSS2: DSI: Changes for DSI2 on OMAP4
Introduce DSI2 PLL clock sources needed by LCD2 channel and DSI2 Protocol
engine and DISPC Functional clock. Do the following:
- Modify dss_get_dsi_clk_source() and dss_select_dsi_clk_source() to take the
dsi module number as an argument.
- Create debugfs files for dsi2, split the corresponding debugfs functions.
- Allow DPI to use these new clock sources.
Signed-off-by: Archit Taneja <archit@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
diff --git a/drivers/video/omap2/dss/dss.c b/drivers/video/omap2/dss/dss.c
index 3bf6e62..d9489d5 100644
--- a/drivers/video/omap2/dss/dss.c
+++ b/drivers/video/omap2/dss/dss.c
@@ -74,7 +74,7 @@
struct dss_clock_info cache_dss_cinfo;
struct dispc_clock_info cache_dispc_cinfo;
- enum omap_dss_clk_source dsi_clk_source;
+ enum omap_dss_clk_source dsi_clk_source[MAX_NUM_DSI];
enum omap_dss_clk_source dispc_clk_source;
enum omap_dss_clk_source lcd_clk_source[MAX_DSS_LCD_MANAGERS];
@@ -313,6 +313,11 @@
dsidev = dsi_get_dsidev_from_id(0);
dsi_wait_pll_hsdiv_dispc_active(dsidev);
break;
+ case OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DISPC:
+ b = 2;
+ dsidev = dsi_get_dsidev_from_id(1);
+ dsi_wait_pll_hsdiv_dispc_active(dsidev);
+ break;
default:
BUG();
}
@@ -324,7 +329,8 @@
dss.dispc_clk_source = clk_src;
}
-void dss_select_dsi_clk_source(enum omap_dss_clk_source clk_src)
+void dss_select_dsi_clk_source(int dsi_module,
+ enum omap_dss_clk_source clk_src)
{
struct platform_device *dsidev;
int b;
@@ -334,17 +340,24 @@
b = 0;
break;
case OMAP_DSS_CLK_SRC_DSI_PLL_HSDIV_DSI:
+ BUG_ON(dsi_module != 0);
b = 1;
dsidev = dsi_get_dsidev_from_id(0);
dsi_wait_pll_hsdiv_dsi_active(dsidev);
break;
+ case OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DSI:
+ BUG_ON(dsi_module != 1);
+ b = 1;
+ dsidev = dsi_get_dsidev_from_id(1);
+ dsi_wait_pll_hsdiv_dsi_active(dsidev);
+ break;
default:
BUG();
}
REG_FLD_MOD(DSS_CONTROL, b, 1, 1); /* DSI_CLK_SWITCH */
- dss.dsi_clk_source = clk_src;
+ dss.dsi_clk_source[dsi_module] = clk_src;
}
void dss_select_lcd_clk_source(enum omap_channel channel,
@@ -366,6 +379,12 @@
dsidev = dsi_get_dsidev_from_id(0);
dsi_wait_pll_hsdiv_dispc_active(dsidev);
break;
+ case OMAP_DSS_CLK_SRC_DSI2_PLL_HSDIV_DISPC:
+ BUG_ON(channel != OMAP_DSS_CHANNEL_LCD2);
+ b = 1;
+ dsidev = dsi_get_dsidev_from_id(1);
+ dsi_wait_pll_hsdiv_dispc_active(dsidev);
+ break;
default:
BUG();
}
@@ -382,9 +401,9 @@
return dss.dispc_clk_source;
}
-enum omap_dss_clk_source dss_get_dsi_clk_source(void)
+enum omap_dss_clk_source dss_get_dsi_clk_source(int dsi_module)
{
- return dss.dsi_clk_source;
+ return dss.dsi_clk_source[dsi_module];
}
enum omap_dss_clk_source dss_get_lcd_clk_source(enum omap_channel channel)
@@ -715,7 +734,8 @@
dss.dpll4_m4_ck = dpll4_m4_ck;
- dss.dsi_clk_source = OMAP_DSS_CLK_SRC_FCK;
+ dss.dsi_clk_source[0] = OMAP_DSS_CLK_SRC_FCK;
+ dss.dsi_clk_source[1] = OMAP_DSS_CLK_SRC_FCK;
dss.dispc_clk_source = OMAP_DSS_CLK_SRC_FCK;
dss.lcd_clk_source[0] = OMAP_DSS_CLK_SRC_FCK;
dss.lcd_clk_source[1] = OMAP_DSS_CLK_SRC_FCK;