When a panel driver calls a HDMI function, it passes the omap_dss_device
pointer, this pointer currently propagates within the HDMI driver to configure
the interface.
Extract the omap_dss_output pointer from omap_dss_device received from the panel
driver, pass the output pointer to HDMI functions local to the driver to
configure the interface, these functions no longer need omap_dss_device since
the driver now maintains a copy of output parameters.
Replace dssdev->manager references with out->manager references as only these
will be valid later.
With the addition of outputs. There is a possibility that an omap_dss_device
isn't connected to an output, or a manager isn't connected to an output yet.
Ensure that the HDMI interface functions proceed only if the output is non NULL.
Signed-off-by: Archit Taneja <arc...@ti.com>
---
drivers/video/omap2/dss/hdmi.c | 40 ++++++++++++++++++++++++----------------
1 file changed, 24 insertions(+), 16 deletions(-)
diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index d93954d..3c89904 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -407,9 +407,10 @@ unsigned long hdmi_get_pixel_clock(void)
return hdmi.ip_data.cfg.timings.pixel_clock * 1000;
}
-static void hdmi_compute_pll(struct omap_dss_device *dssdev, int phy,
+static void hdmi_compute_pll(struct omap_dss_output *out, int phy,
struct hdmi_pll_info *pi)
{
+ struct omap_dss_device *dssdev = out->device;
unsigned long clkin, refclk;
u32 mf;
@@ -458,7 +459,7 @@ static void hdmi_compute_pll(struct omap_dss_device
*dssdev, int phy,
DSSDBG("range = %d sd = %d\n", pi->dcofreq, pi->regsd);
}
-static int hdmi_power_on(struct omap_dss_device *dssdev)
+static int hdmi_power_on(struct omap_dss_output *out)
{
int r;
struct omap_video_timings *p;
@@ -468,7 +469,7 @@ static int hdmi_power_on(struct omap_dss_device *dssdev)
if (r)
return r;
- dss_mgr_disable(dssdev->manager);
+ dss_mgr_disable(out->manager);
p = &hdmi.ip_data.cfg.timings;
@@ -476,7 +477,7 @@ static int hdmi_power_on(struct omap_dss_device *dssdev)
phy = p->pixel_clock;
- hdmi_compute_pll(dssdev, phy, &hdmi.ip_data.pll_data);
+ hdmi_compute_pll(out, phy, &hdmi.ip_data.pll_data);
hdmi.ip_data.ops->video_disable(&hdmi.ip_data);
@@ -504,19 +505,19 @@ static int hdmi_power_on(struct omap_dss_device *dssdev)
* dynamically by user. This can be moved to single location , say
* Boardfile.
*/
- dss_select_dispc_clk_source(dssdev->clocks.dispc.dispc_fclk_src);
+ dss_select_dispc_clk_source(out->device->clocks.dispc.dispc_fclk_src);
/* bypass TV gamma table */
dispc_enable_gamma_table(0);
/* tv size */
- dss_mgr_set_timings(dssdev->manager, p);
+ dss_mgr_set_timings(out->manager, p);
r = hdmi.ip_data.ops->video_enable(&hdmi.ip_data);
if (r)
goto err_vid_enable;
- r = dss_mgr_enable(dssdev->manager);
+ r = dss_mgr_enable(out->manager);
if (r)
goto err_mgr_enable;
@@ -533,9 +534,9 @@ err:
return -EIO;
}
-static void hdmi_power_off(struct omap_dss_device *dssdev)
+static void hdmi_power_off(struct omap_dss_output *out)
{
- dss_mgr_disable(dssdev->manager);
+ dss_mgr_disable(out->manager);
hdmi.ip_data.ops->video_disable(&hdmi.ip_data);
hdmi.ip_data.ops->phy_disable(&hdmi.ip_data);
@@ -560,9 +561,13 @@ int omapdss_hdmi_display_check_timing(struct
omap_dss_device *dssdev,
void omapdss_hdmi_display_set_timing(struct omap_dss_device *dssdev,
struct omap_video_timings *timings)
{
+ struct omap_dss_output *out = dssdev->output;
struct hdmi_cm cm;
const struct hdmi_config *t;
+ if (out == NULL)
+ return;
+
mutex_lock(&hdmi.lock);
cm = hdmi_get_code(timings);
@@ -575,13 +580,13 @@ void omapdss_hdmi_display_set_timing(struct
omap_dss_device *dssdev,
if (dssdev->state == OMAP_DSS_DISPLAY_ACTIVE) {
int r;
- hdmi_power_off(dssdev);
+ hdmi_power_off(out);
- r = hdmi_power_on(dssdev);
+ r = hdmi_power_on(out);
if (r)
DSSERR("failed to power on device\n");
} else {
- dss_mgr_set_timings(dssdev->manager, &t->timings);
+ dss_mgr_set_timings(out->manager, &t->timings);
}
mutex_unlock(&hdmi.lock);
@@ -640,14 +645,15 @@ bool omapdss_hdmi_detect(void)
int omapdss_hdmi_display_enable(struct omap_dss_device *dssdev)
{
struct omap_dss_hdmi_data *priv = dssdev->data;
+ struct omap_dss_output *out = dssdev->output;
int r = 0;
DSSDBG("ENTER hdmi_display_enable\n");
mutex_lock(&hdmi.lock);
- if (dssdev->manager == NULL) {
- DSSERR("failed to enable display: no manager\n");
+ if (out == NULL || out->manager == NULL) {
+ DSSERR("failed to enable display: no output/manager\n");
r = -ENODEV;
goto err0;
}
@@ -668,7 +674,7 @@ int omapdss_hdmi_display_enable(struct omap_dss_device
*dssdev)
}
}
- r = hdmi_power_on(dssdev);
+ r = hdmi_power_on(out);
if (r) {
DSSERR("failed to power on device\n");
goto err2;
@@ -689,11 +695,13 @@ err0:
void omapdss_hdmi_display_disable(struct omap_dss_device *dssdev)
{
+ struct omap_dss_output *out = dssdev->output;
+
DSSDBG("Enter hdmi_display_disable\n");
mutex_lock(&hdmi.lock);
- hdmi_power_off(dssdev);
+ hdmi_power_off(out);
if (dssdev->platform_disable)
dssdev->platform_disable(dssdev);
--
1.7.9.5
--
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