[PATCH 65/65] OMAPDSS: check the return value of dss_mgr_enable()

Tomi Valkeinen
2011-11-22T09:24:58Z

Now that dss_mgr_enable returns an error value, check it in all the
places dss_mgr_enable is used, and bail out properly.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
---
drivers/video/omap2/dss/dpi.c | 5 ++++-
drivers/video/omap2/dss/dsi.c | 11 ++++++++++-
drivers/video/omap2/dss/hdmi.c | 9 ++++++++-
drivers/video/omap2/dss/sdi.c | 6 +++++-
drivers/video/omap2/dss/venc.c | 26 +++++++++++++++++++++++---
5 files changed, 50 insertions(+), 7 deletions(-)

diff --git a/drivers/video/omap2/dss/dpi.c b/drivers/video/omap2/dss/dpi.c
index 79c4df3..395d658 100644
--- a/drivers/video/omap2/dss/dpi.c
+++ b/drivers/video/omap2/dss/dpi.c
@@ -223,10 +223,13 @@ int omapdss_dpi_display_enable(struct omap_dss_device *dssdev)

mdelay(2);

- dss_mgr_enable(dssdev->manager);
+ r = dss_mgr_enable(dssdev->manager);
+ if (r)
+ goto err_mgr_enable;

return 0;

+err_mgr_enable:
err_set_mode:
if (dpi_use_dsi_pll(dssdev))
dsi_pll_uninit(dpi.dsidev, true);
diff --git a/drivers/video/omap2/dss/dsi.c b/drivers/video/omap2/dss/dsi.c
index a35f3fb..57fda24 100644
--- a/drivers/video/omap2/dss/dsi.c
+++ b/drivers/video/omap2/dss/dsi.c
@@ -3945,6 +3945,7 @@ int dsi_enable_video_output(struct omap_dss_device *dssdev, int channel)
int bpp = dsi_get_pixel_size(dssdev->panel.dsi_pix_fmt);
u8 data_type;
u16 word_count;
+ int r;

if (dssdev->panel.dsi_mode == OMAP_DSS_DSI_VIDEO_MODE) {
switch (dssdev->panel.dsi_pix_fmt) {
@@ -3979,7 +3980,15 @@ int dsi_enable_video_output(struct omap_dss_device *dssdev, int channel)
dsi_if_enable(dsidev, true);
}

- dss_mgr_enable(dssdev->manager);
+ r = dss_mgr_enable(dssdev->manager);
+ if (r) {
+ if (dssdev->panel.dsi_mode == OMAP_DSS_DSI_VIDEO_MODE) {
+ dsi_if_enable(dsidev, false);
+ dsi_vc_enable(dsidev, channel, false);
+ }
+
+ return r;
+ }

return 0;
}
diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index e245a2b..b064762 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -387,9 +387,16 @@ static int hdmi_power_on(struct omap_dss_device *dssdev)

hdmi.ip_data.ops->video_enable(&hdmi.ip_data, 1);

- dss_mgr_enable(dssdev->manager);
+ r = dss_mgr_enable(dssdev->manager);
+ if (r)
+ goto err_mgr_enable;

return 0;
+
+err_mgr_enable:
+ hdmi.ip_data.ops->video_enable(&hdmi.ip_data, 0);
+ hdmi.ip_data.ops->phy_disable(&hdmi.ip_data);
+ hdmi.ip_data.ops->pll_disable(&hdmi.ip_data);
err:
hdmi_runtime_put();
return -EIO;
diff --git a/drivers/video/omap2/dss/sdi.c b/drivers/video/omap2/dss/sdi.c
index 02da8be..8266ca0 100644
--- a/drivers/video/omap2/dss/sdi.c
+++ b/drivers/video/omap2/dss/sdi.c
@@ -123,10 +123,14 @@ int omapdss_sdi_display_enable(struct omap_dss_device *dssdev)
goto err_sdi_enable;
mdelay(2);

- dss_mgr_enable(dssdev->manager);
+ r = dss_mgr_enable(dssdev->manager);
+ if (r)
+ goto err_mgr_enable;

return 0;

+err_mgr_enable:
+ dss_sdi_disable();
err_sdi_enable:
err_set_dispc_clock_div:
err_set_dss_clock_div:
diff --git a/drivers/video/omap2/dss/venc.c b/drivers/video/omap2/dss/venc.c
index 101fcd7..b3e9f90 100644
--- a/drivers/video/omap2/dss/venc.c
+++ b/drivers/video/omap2/dss/venc.c
@@ -417,9 +417,10 @@ static const struct venc_config *venc_timings_to_config(
BUG();
}

-static void venc_power_on(struct omap_dss_device *dssdev)
+static int venc_power_on(struct omap_dss_device *dssdev)
{
u32 l;
+ int r;

venc_reset();
venc_write_config(venc_timings_to_config(&dssdev->panel.timings));
@@ -447,7 +448,22 @@ static void venc_power_on(struct omap_dss_device *dssdev)
if (dssdev->platform_enable)
dssdev->platform_enable(dssdev);

- dss_mgr_enable(dssdev->manager);
+ r = dss_mgr_enable(dssdev->manager);
+ if (r)
+ goto err;
+
+ return 0;
+
+err:
+ venc_write_reg(VENC_OUTPUT_CONTROL, 0);
+ dss_set_dac_pwrdn_bgz(0);
+
+ if (dssdev->platform_disable)
+ dssdev->platform_disable(dssdev);
+
+ regulator_disable(venc.vdda_dac_reg);
+
+ return r;
}

static void venc_power_off(struct omap_dss_device *dssdev)
@@ -504,7 +520,9 @@ static int venc_panel_enable(struct omap_dss_device *dssdev)
if (r)
goto err1;

- venc_power_on(dssdev);
+ r = venc_power_on(dssdev);
+ if (r)
+ goto err2;

venc.wss_data = 0;

@@ -512,6 +530,8 @@ static int venc_panel_enable(struct omap_dss_device *dssdev)

mutex_unlock(&venc.venc_lock);
return 0;
+err2:
+ venc_runtime_put();
err1:
omap_dss_stop_device(dssdev);
err0:
--
1.7.4.1