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path: root/drivers/video/omap2/dss/dpi.c
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Diffstat (limited to 'drivers/video/omap2/dss/dpi.c')
-rw-r--r--drivers/video/omap2/dss/dpi.c144
1 files changed, 33 insertions, 111 deletions
diff --git a/drivers/video/omap2/dss/dpi.c b/drivers/video/omap2/dss/dpi.c
index 2d71031baa25..960e977a8bf0 100644
--- a/drivers/video/omap2/dss/dpi.c
+++ b/drivers/video/omap2/dss/dpi.c
@@ -25,7 +25,10 @@
#include <linux/kernel.h>
#include <linux/clk.h>
#include <linux/delay.h>
+#include <linux/err.h>
#include <linux/errno.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/consumer.h>
#include <plat/display.h>
#include <plat/cpu.h>
@@ -33,7 +36,7 @@
#include "dss.h"
static struct {
- int update_enabled;
+ struct regulator *vdds_dsi_reg;
} dpi;
#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL
@@ -53,7 +56,7 @@ static int dpi_set_dsi_clk(bool is_tft, unsigned long pck_req,
if (r)
return r;
- dss_select_clk_source(0, 1);
+ dss_select_dispc_clk_source(DSS_SRC_DSI1_PLL_FCLK);
r = dispc_set_clock_div(&dispc_cinfo);
if (r)
@@ -150,7 +153,7 @@ static int dpi_basic_init(struct omap_dss_device *dssdev)
return 0;
}
-static int dpi_display_enable(struct omap_dss_device *dssdev)
+int omapdss_dpi_display_enable(struct omap_dss_device *dssdev)
{
int r;
@@ -160,10 +163,10 @@ static int dpi_display_enable(struct omap_dss_device *dssdev)
goto err0;
}
- if (dssdev->state != OMAP_DSS_DISPLAY_DISABLED) {
- DSSERR("display already enabled\n");
- r = -EINVAL;
- goto err1;
+ if (cpu_is_omap34xx()) {
+ r = regulator_enable(dpi.vdds_dsi_reg);
+ if (r)
+ goto err1;
}
dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
@@ -184,18 +187,10 @@ static int dpi_display_enable(struct omap_dss_device *dssdev)
mdelay(2);
- dispc_enable_lcd_out(1);
-
- r = dssdev->driver->enable(dssdev);
- if (r)
- goto err5;
-
- dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
+ dssdev->manager->enable(dssdev->manager);
return 0;
-err5:
- dispc_enable_lcd_out(0);
err4:
#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL
dsi_pll_uninit();
@@ -204,78 +199,35 @@ err3:
#endif
err2:
dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
+ if (cpu_is_omap34xx())
+ regulator_disable(dpi.vdds_dsi_reg);
err1:
omap_dss_stop_device(dssdev);
err0:
return r;
}
+EXPORT_SYMBOL(omapdss_dpi_display_enable);
-static int dpi_display_resume(struct omap_dss_device *dssdev);
-
-static void dpi_display_disable(struct omap_dss_device *dssdev)
+void omapdss_dpi_display_disable(struct omap_dss_device *dssdev)
{
- if (dssdev->state == OMAP_DSS_DISPLAY_DISABLED)
- return;
-
- if (dssdev->state == OMAP_DSS_DISPLAY_SUSPENDED)
- dpi_display_resume(dssdev);
-
- dssdev->driver->disable(dssdev);
-
- dispc_enable_lcd_out(0);
+ dssdev->manager->disable(dssdev->manager);
#ifdef CONFIG_OMAP2_DSS_USE_DSI_PLL
- dss_select_clk_source(0, 0);
+ dss_select_dispc_clk_source(DSS_SRC_DSS1_ALWON_FCLK);
dsi_pll_uninit();
dss_clk_disable(DSS_CLK_FCK2);
#endif
dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
- dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
+ if (cpu_is_omap34xx())
+ regulator_disable(dpi.vdds_dsi_reg);
omap_dss_stop_device(dssdev);
}
+EXPORT_SYMBOL(omapdss_dpi_display_disable);
-static int dpi_display_suspend(struct omap_dss_device *dssdev)
-{
- if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE)
- return -EINVAL;
-
- DSSDBG("dpi_display_suspend\n");
-
- if (dssdev->driver->suspend)
- dssdev->driver->suspend(dssdev);
-
- dispc_enable_lcd_out(0);
-
- dss_clk_disable(DSS_CLK_ICK | DSS_CLK_FCK1);
-
- dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
-
- return 0;
-}
-
-static int dpi_display_resume(struct omap_dss_device *dssdev)
-{
- if (dssdev->state != OMAP_DSS_DISPLAY_SUSPENDED)
- return -EINVAL;
-
- DSSDBG("dpi_display_resume\n");
-
- dss_clk_enable(DSS_CLK_ICK | DSS_CLK_FCK1);
-
- dispc_enable_lcd_out(1);
-
- if (dssdev->driver->resume)
- dssdev->driver->resume(dssdev);
-
- dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
-
- return 0;
-}
-
-static void dpi_set_timings(struct omap_dss_device *dssdev,
+void dpi_set_timings(struct omap_dss_device *dssdev,
struct omap_video_timings *timings)
{
DSSDBG("dpi_set_timings\n");
@@ -285,8 +237,9 @@ static void dpi_set_timings(struct omap_dss_device *dssdev,
dispc_go(OMAP_DSS_CHANNEL_LCD);
}
}
+EXPORT_SYMBOL(dpi_set_timings);
-static int dpi_check_timings(struct omap_dss_device *dssdev,
+int dpi_check_timings(struct omap_dss_device *dssdev,
struct omap_video_timings *timings)
{
bool is_tft;
@@ -340,56 +293,25 @@ static int dpi_check_timings(struct omap_dss_device *dssdev,
return 0;
}
-
-static void dpi_get_timings(struct omap_dss_device *dssdev,
- struct omap_video_timings *timings)
-{
- *timings = dssdev->panel.timings;
-}
-
-static int dpi_display_set_update_mode(struct omap_dss_device *dssdev,
- enum omap_dss_update_mode mode)
-{
- if (mode == OMAP_DSS_UPDATE_MANUAL)
- return -EINVAL;
-
- if (mode == OMAP_DSS_UPDATE_DISABLED) {
- dispc_enable_lcd_out(0);
- dpi.update_enabled = 0;
- } else {
- dispc_enable_lcd_out(1);
- dpi.update_enabled = 1;
- }
-
- return 0;
-}
-
-static enum omap_dss_update_mode dpi_display_get_update_mode(
- struct omap_dss_device *dssdev)
-{
- return dpi.update_enabled ? OMAP_DSS_UPDATE_AUTO :
- OMAP_DSS_UPDATE_DISABLED;
-}
+EXPORT_SYMBOL(dpi_check_timings);
int dpi_init_display(struct omap_dss_device *dssdev)
{
DSSDBG("init_display\n");
- dssdev->enable = dpi_display_enable;
- dssdev->disable = dpi_display_disable;
- dssdev->suspend = dpi_display_suspend;
- dssdev->resume = dpi_display_resume;
- dssdev->set_timings = dpi_set_timings;
- dssdev->check_timings = dpi_check_timings;
- dssdev->get_timings = dpi_get_timings;
- dssdev->set_update_mode = dpi_display_set_update_mode;
- dssdev->get_update_mode = dpi_display_get_update_mode;
-
return 0;
}
-int dpi_init(void)
+int dpi_init(struct platform_device *pdev)
{
+ if (cpu_is_omap34xx()) {
+ dpi.vdds_dsi_reg = dss_get_vdds_dsi();
+ if (IS_ERR(dpi.vdds_dsi_reg)) {
+ DSSERR("can't get VDDS_DSI regulator\n");
+ return PTR_ERR(dpi.vdds_dsi_reg);
+ }
+ }
+
return 0;
}