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path: root/drivers/video/omap2/dss/venc.c
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Diffstat (limited to 'drivers/video/omap2/dss/venc.c')
-rw-r--r--drivers/video/omap2/dss/venc.c251
1 files changed, 100 insertions, 151 deletions
diff --git a/drivers/video/omap2/dss/venc.c b/drivers/video/omap2/dss/venc.c
index 0d0dc94417fc..a0ab52c841ee 100644
--- a/drivers/video/omap2/dss/venc.c
+++ b/drivers/video/omap2/dss/venc.c
@@ -400,6 +400,56 @@ static const struct venc_config *venc_timings_to_config(
BUG();
}
+static void venc_power_on(struct omap_dss_device *dssdev)
+{
+ u32 l;
+
+ venc_enable_clocks(1);
+
+ venc_reset();
+ venc_write_config(venc_timings_to_config(&dssdev->panel.timings));
+
+ dss_set_venc_output(dssdev->phy.venc.type);
+ dss_set_dac_pwrdn_bgz(1);
+
+ l = 0;
+
+ if (dssdev->phy.venc.type == OMAP_DSS_VENC_TYPE_COMPOSITE)
+ l |= 1 << 1;
+ else /* S-Video */
+ l |= (1 << 0) | (1 << 2);
+
+ if (dssdev->phy.venc.invert_polarity == false)
+ l |= 1 << 3;
+
+ venc_write_reg(VENC_OUTPUT_CONTROL, l);
+
+ dispc_set_digit_size(dssdev->panel.timings.x_res,
+ dssdev->panel.timings.y_res/2);
+
+ regulator_enable(venc.vdda_dac_reg);
+
+ if (dssdev->platform_enable)
+ dssdev->platform_enable(dssdev);
+
+ dssdev->manager->enable(dssdev->manager);
+}
+
+static void venc_power_off(struct omap_dss_device *dssdev)
+{
+ venc_write_reg(VENC_OUTPUT_CONTROL, 0);
+ dss_set_dac_pwrdn_bgz(0);
+
+ dssdev->manager->disable(dssdev->manager);
+
+ if (dssdev->platform_disable)
+ dssdev->platform_disable(dssdev);
+
+ regulator_disable(venc.vdda_dac_reg);
+
+ venc_enable_clocks(0);
+}
+
@@ -420,23 +470,66 @@ static int venc_panel_enable(struct omap_dss_device *dssdev)
{
int r = 0;
+ DSSDBG("venc_enable_display\n");
+
+ mutex_lock(&venc.venc_lock);
+
+ if (dssdev->state != OMAP_DSS_DISPLAY_DISABLED) {
+ r = -EINVAL;
+ goto err1;
+ }
+
+ if (dssdev->platform_enable) {
+ r = dssdev->platform_enable(dssdev);
+ if (r)
+ goto err2;
+ }
+
+ venc_power_on(dssdev);
+
+ venc.wss_data = 0;
+
+ dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
+
/* wait couple of vsyncs until enabling the LCD */
msleep(50);
- if (dssdev->platform_enable)
- r = dssdev->platform_enable(dssdev);
+ mutex_unlock(&venc.venc_lock);
return r;
+err2:
+ venc_power_off(dssdev);
+err1:
+ mutex_unlock(&venc.venc_lock);
+ return r;
}
static void venc_panel_disable(struct omap_dss_device *dssdev)
{
- if (dssdev->platform_disable)
- dssdev->platform_disable(dssdev);
+ DSSDBG("venc_disable_display\n");
- /* wait at least 5 vsyncs after disabling the LCD */
+ mutex_lock(&venc.venc_lock);
+
+ if (dssdev->state == OMAP_DSS_DISPLAY_DISABLED)
+ goto end;
+ if (dssdev->state == OMAP_DSS_DISPLAY_SUSPENDED) {
+ /* suspended is the same as disabled with venc */
+ dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
+ goto end;
+ }
+
+ venc_power_off(dssdev);
+
+ /* wait at least 5 vsyncs after disabling the LCD */
msleep(100);
+
+ if (dssdev->platform_disable)
+ dssdev->platform_disable(dssdev);
+
+ dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
+end:
+ mutex_unlock(&venc.venc_lock);
}
static int venc_panel_suspend(struct omap_dss_device *dssdev)
@@ -526,146 +619,6 @@ void venc_exit(void)
iounmap(venc.base);
}
-static void venc_power_on(struct omap_dss_device *dssdev)
-{
- u32 l;
-
- venc_enable_clocks(1);
-
- venc_reset();
- venc_write_config(venc_timings_to_config(&dssdev->panel.timings));
-
- dss_set_venc_output(dssdev->phy.venc.type);
- dss_set_dac_pwrdn_bgz(1);
-
- l = 0;
-
- if (dssdev->phy.venc.type == OMAP_DSS_VENC_TYPE_COMPOSITE)
- l |= 1 << 1;
- else /* S-Video */
- l |= (1 << 0) | (1 << 2);
-
- if (dssdev->phy.venc.invert_polarity == false)
- l |= 1 << 3;
-
- venc_write_reg(VENC_OUTPUT_CONTROL, l);
-
- dispc_set_digit_size(dssdev->panel.timings.x_res,
- dssdev->panel.timings.y_res/2);
-
- regulator_enable(venc.vdda_dac_reg);
-
- if (dssdev->platform_enable)
- dssdev->platform_enable(dssdev);
-
- dssdev->manager->enable(dssdev->manager);
-}
-
-static void venc_power_off(struct omap_dss_device *dssdev)
-{
- venc_write_reg(VENC_OUTPUT_CONTROL, 0);
- dss_set_dac_pwrdn_bgz(0);
-
- dssdev->manager->disable(dssdev->manager);
-
- if (dssdev->platform_disable)
- dssdev->platform_disable(dssdev);
-
- regulator_disable(venc.vdda_dac_reg);
-
- venc_enable_clocks(0);
-}
-
-static int venc_enable_display(struct omap_dss_device *dssdev)
-{
- int r = 0;
-
- DSSDBG("venc_enable_display\n");
-
- mutex_lock(&venc.venc_lock);
-
- if (dssdev->state != OMAP_DSS_DISPLAY_DISABLED) {
- r = -EINVAL;
- goto err;
- }
-
- venc_power_on(dssdev);
-
- venc.wss_data = 0;
-
- dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
-err:
- mutex_unlock(&venc.venc_lock);
-
- return r;
-}
-
-static void venc_disable_display(struct omap_dss_device *dssdev)
-{
- DSSDBG("venc_disable_display\n");
-
- mutex_lock(&venc.venc_lock);
-
- if (dssdev->state == OMAP_DSS_DISPLAY_DISABLED)
- goto end;
-
- if (dssdev->state == OMAP_DSS_DISPLAY_SUSPENDED) {
- /* suspended is the same as disabled with venc */
- dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
- goto end;
- }
-
- venc_power_off(dssdev);
-
- dssdev->state = OMAP_DSS_DISPLAY_DISABLED;
-end:
- mutex_unlock(&venc.venc_lock);
-}
-
-static int venc_display_suspend(struct omap_dss_device *dssdev)
-{
- int r = 0;
-
- DSSDBG("venc_display_suspend\n");
-
- mutex_lock(&venc.venc_lock);
-
- if (dssdev->state != OMAP_DSS_DISPLAY_ACTIVE) {
- r = -EINVAL;
- goto err;
- }
-
- venc_power_off(dssdev);
-
- dssdev->state = OMAP_DSS_DISPLAY_SUSPENDED;
-err:
- mutex_unlock(&venc.venc_lock);
-
- return r;
-}
-
-static int venc_display_resume(struct omap_dss_device *dssdev)
-{
- int r = 0;
-
- DSSDBG("venc_display_resume\n");
-
- mutex_lock(&venc.venc_lock);
-
- if (dssdev->state != OMAP_DSS_DISPLAY_SUSPENDED) {
- r = -EINVAL;
- goto err;
- }
-
- venc_power_on(dssdev);
-
- dssdev->state = OMAP_DSS_DISPLAY_ACTIVE;
-err:
- mutex_unlock(&venc.venc_lock);
-
- return r;
-}
-
static void venc_get_timings(struct omap_dss_device *dssdev,
struct omap_video_timings *timings)
{
@@ -684,8 +637,8 @@ static void venc_set_timings(struct omap_dss_device *dssdev,
dssdev->panel.timings = *timings;
if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) {
/* turn the venc off and on to get new timings to use */
- venc_disable_display(dssdev);
- venc_enable_display(dssdev);
+ venc_panel_disable(dssdev);
+ venc_panel_enable(dssdev);
}
}
@@ -738,10 +691,6 @@ int venc_init_display(struct omap_dss_device *dssdev)
{
DSSDBG("init_display\n");
- dssdev->enable = venc_enable_display;
- dssdev->disable = venc_disable_display;
- dssdev->suspend = venc_display_suspend;
- dssdev->resume = venc_display_resume;
dssdev->get_timings = venc_get_timings;
dssdev->set_timings = venc_set_timings;
dssdev->check_timings = venc_check_timings;
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-27 16:14:12 +0100