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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.c163
1 files changed, 107 insertions, 56 deletions
diff --git a/drivers/video/omap2/dss/venc.c b/drivers/video/omap2/dss/venc.c
index 74fdb3ee209e..496a106fe823 100644
--- a/drivers/video/omap2/dss/venc.c
+++ b/drivers/video/omap2/dss/venc.c
@@ -304,7 +304,7 @@ static struct {
enum omap_dss_venc_type type;
bool invert_polarity;
- struct omap_dss_output output;
+ struct omap_dss_device output;
} venc;
static inline void venc_write_reg(int idx, u32 val)
@@ -429,7 +429,7 @@ static const struct venc_config *venc_timings_to_config(
static int venc_power_on(struct omap_dss_device *dssdev)
{
- struct omap_overlay_manager *mgr = dssdev->output->manager;
+ struct omap_overlay_manager *mgr = venc.output.manager;
u32 l;
int r;
@@ -480,7 +480,7 @@ err0:
static void venc_power_off(struct omap_dss_device *dssdev)
{
- struct omap_overlay_manager *mgr = dssdev->output->manager;
+ struct omap_overlay_manager *mgr = venc.output.manager;
venc_write_reg(VENC_OUTPUT_CONTROL, 0);
dss_set_dac_pwrdn_bgz(0);
@@ -492,15 +492,9 @@ static void venc_power_off(struct omap_dss_device *dssdev)
venc_runtime_put();
}
-unsigned long venc_get_pixel_clock(void)
-{
- /* VENC Pixel Clock in Mhz */
- return 13500000;
-}
-
int omapdss_venc_display_enable(struct omap_dss_device *dssdev)
{
- struct omap_dss_output *out = dssdev->output;
+ struct omap_dss_device *out = &venc.output;
int r;
DSSDBG("venc_display_enable\n");
@@ -513,23 +507,15 @@ int omapdss_venc_display_enable(struct omap_dss_device *dssdev)
goto err0;
}
- r = omap_dss_start_device(dssdev);
- if (r) {
- DSSERR("failed to start device\n");
- goto err0;
- }
-
r = venc_power_on(dssdev);
if (r)
- goto err1;
+ goto err0;
venc.wss_data = 0;
mutex_unlock(&venc.venc_lock);
return 0;
-err1:
- omap_dss_stop_device(dssdev);
err0:
mutex_unlock(&venc.venc_lock);
return r;
@@ -543,8 +529,6 @@ void omapdss_venc_display_disable(struct omap_dss_device *dssdev)
venc_power_off(dssdev);
- omap_dss_stop_device(dssdev);
-
mutex_unlock(&venc.venc_lock);
}
@@ -561,6 +545,8 @@ void omapdss_venc_set_timings(struct omap_dss_device *dssdev,
venc.timings = *timings;
+ dispc_set_tv_pclk(13500000);
+
mutex_unlock(&venc.venc_lock);
}
@@ -578,6 +564,16 @@ int omapdss_venc_check_timings(struct omap_dss_device *dssdev,
return -EINVAL;
}
+static void venc_get_timings(struct omap_dss_device *dssdev,
+ struct omap_video_timings *timings)
+{
+ mutex_lock(&venc.venc_lock);
+
+ *timings = venc.timings;
+
+ mutex_unlock(&venc.venc_lock);
+}
+
u32 omapdss_venc_get_wss(struct omap_dss_device *dssdev)
{
/* Invert due to VENC_L21_WC_CTL:INV=1 */
@@ -633,23 +629,22 @@ void omapdss_venc_invert_vid_out_polarity(struct omap_dss_device *dssdev,
mutex_unlock(&venc.venc_lock);
}
-static int venc_init_display(struct omap_dss_device *dssdev)
+static int venc_init_regulator(void)
{
- DSSDBG("init_display\n");
-
- if (venc.vdda_dac_reg == NULL) {
- struct regulator *vdda_dac;
+ struct regulator *vdda_dac;
- vdda_dac = regulator_get(&venc.pdev->dev, "vdda_dac");
+ if (venc.vdda_dac_reg != NULL)
+ return 0;
- if (IS_ERR(vdda_dac)) {
- DSSERR("can't get VDDA_DAC regulator\n");
- return PTR_ERR(vdda_dac);
- }
+ vdda_dac = devm_regulator_get(&venc.pdev->dev, "vdda_dac");
- venc.vdda_dac_reg = vdda_dac;
+ if (IS_ERR(vdda_dac)) {
+ DSSERR("can't get VDDA_DAC regulator\n");
+ return PTR_ERR(vdda_dac);
}
+ venc.vdda_dac_reg = vdda_dac;
+
return 0;
}
@@ -765,19 +760,16 @@ static int venc_probe_pdata(struct platform_device *vencdev)
if (!plat_dssdev)
return 0;
+ r = venc_init_regulator();
+ if (r)
+ return r;
+
dssdev = dss_alloc_and_init_device(&vencdev->dev);
if (!dssdev)
return -ENOMEM;
dss_copy_device_pdata(dssdev, plat_dssdev);
- r = venc_init_display(dssdev);
- if (r) {
- DSSERR("device %s init failed: %d\n", dssdev->name, r);
- dss_put_device(dssdev);
- return r;
- }
-
r = omapdss_output_set_device(&venc.output, dssdev);
if (r) {
DSSERR("failed to connect output to new device: %s\n",
@@ -797,24 +789,87 @@ static int venc_probe_pdata(struct platform_device *vencdev)
return 0;
}
+static int venc_connect(struct omap_dss_device *dssdev,
+ struct omap_dss_device *dst)
+{
+ struct omap_overlay_manager *mgr;
+ int r;
+
+ r = venc_init_regulator();
+ if (r)
+ return r;
+
+ mgr = omap_dss_get_overlay_manager(dssdev->dispc_channel);
+ if (!mgr)
+ return -ENODEV;
+
+ r = dss_mgr_connect(mgr, dssdev);
+ if (r)
+ return r;
+
+ r = omapdss_output_set_device(dssdev, dst);
+ if (r) {
+ DSSERR("failed to connect output to new device: %s\n",
+ dst->name);
+ dss_mgr_disconnect(mgr, dssdev);
+ return r;
+ }
+
+ return 0;
+}
+
+static void venc_disconnect(struct omap_dss_device *dssdev,
+ struct omap_dss_device *dst)
+{
+ WARN_ON(dst != dssdev->device);
+
+ if (dst != dssdev->device)
+ return;
+
+ omapdss_output_unset_device(dssdev);
+
+ if (dssdev->manager)
+ dss_mgr_disconnect(dssdev->manager, dssdev);
+}
+
+static const struct omapdss_atv_ops venc_ops = {
+ .connect = venc_connect,
+ .disconnect = venc_disconnect,
+
+ .enable = omapdss_venc_display_enable,
+ .disable = omapdss_venc_display_disable,
+
+ .check_timings = omapdss_venc_check_timings,
+ .set_timings = omapdss_venc_set_timings,
+ .get_timings = venc_get_timings,
+
+ .set_type = omapdss_venc_set_type,
+ .invert_vid_out_polarity = omapdss_venc_invert_vid_out_polarity,
+
+ .set_wss = omapdss_venc_set_wss,
+ .get_wss = omapdss_venc_get_wss,
+};
+
static void venc_init_output(struct platform_device *pdev)
{
- struct omap_dss_output *out = &venc.output;
+ struct omap_dss_device *out = &venc.output;
- out->pdev = pdev;
+ out->dev = &pdev->dev;
out->id = OMAP_DSS_OUTPUT_VENC;
- out->type = OMAP_DISPLAY_TYPE_VENC;
+ out->output_type = OMAP_DISPLAY_TYPE_VENC;
out->name = "venc.0";
out->dispc_channel = OMAP_DSS_CHANNEL_DIGIT;
+ out->ops.atv = &venc_ops;
+ out->owner = THIS_MODULE;
- dss_register_output(out);
+ omapdss_register_output(out);
}
static void __exit venc_uninit_output(struct platform_device *pdev)
{
- struct omap_dss_output *out = &venc.output;
+ struct omap_dss_device *out = &venc.output;
- dss_unregister_output(out);
+ omapdss_unregister_output(out);
}
/* VENC HW IP initialisation */
@@ -866,16 +921,17 @@ static int omap_venchw_probe(struct platform_device *pdev)
venc_init_output(pdev);
- r = venc_probe_pdata(pdev);
- if (r) {
- venc_panel_exit();
- venc_uninit_output(pdev);
- pm_runtime_disable(&pdev->dev);
- return r;
+ if (pdev->dev.platform_data) {
+ r = venc_probe_pdata(pdev);
+ if (r)
+ goto err_probe;
}
return 0;
+err_probe:
+ venc_panel_exit();
+ venc_uninit_output(pdev);
err_panel_init:
err_runtime_get:
pm_runtime_disable(&pdev->dev);
@@ -886,11 +942,6 @@ static int __exit omap_venchw_remove(struct platform_device *pdev)
{
dss_unregister_child_devices(&pdev->dev);
- if (venc.vdda_dac_reg != NULL) {
- regulator_put(venc.vdda_dac_reg);
- venc.vdda_dac_reg = NULL;
- }
-
venc_panel_exit();
venc_uninit_output(pdev);