The 'de-active' and 'pixelclk-active' DT properties are evaluated
by of_parse_display_timing() called from of_get_drm_display_mode(),
but later lost in the conversion from videomode.flags to
drm_display_mode.flags.
Enhance of_get_drm_display_mode() to also return the bus flags in a
separate variable, so that they can be passed on to the ipu-di
driver.
Signed-off-by: Lothar Waßmann <LW@xxxxxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/drm_modes.c | 5 ++++-
drivers/gpu/drm/imx/imx-ldb.c | 11 ++++++++---
drivers/gpu/drm/imx/parallel-display.c | 8 ++++++--
include/drm/drm_modes.h | 2 +-
4 files changed, 19 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/drm_modes.c b/drivers/gpu/drm/drm_modes.c
index 51804e5..1570487 100644
--- a/drivers/gpu/drm/drm_modes.c
+++ b/drivers/gpu/drm/drm_modes.c
@@ -687,7 +687,8 @@ EXPORT_SYMBOL_GPL(drm_bus_flags_from_videomode);
* 0 on success, a negative errno code when no of videomode node was found.
*/
int of_get_drm_display_mode(struct device_node *np,
- struct drm_display_mode *dmode, int index)
+ struct drm_display_mode *dmode, u32 *bus_flags,
+ int index)
{
struct videomode vm;
int ret;
@@ -697,6 +698,8 @@ int of_get_drm_display_mode(struct device_node *np,
return ret;
drm_display_mode_from_videomode(&vm, dmode);
+ if (bus_flags)
+ drm_bus_flags_from_videomode(&vm, bus_flags);
pr_debug("%s: got %dx%d display mode from %s\n",
of_node_full_name(np), vm.hactive, vm.vactive, np->name);
diff --git a/drivers/gpu/drm/imx/imx-ldb.c b/drivers/gpu/drm/imx/imx-ldb.c
index beff793..e445182 100644
--- a/drivers/gpu/drm/imx/imx-ldb.c
+++ b/drivers/gpu/drm/imx/imx-ldb.c
@@ -66,7 +66,8 @@ struct imx_ldb_channel {
int edid_len;
struct drm_display_mode mode;
int mode_valid;
- int bus_format;
+ u32 bus_format;
+ u32 bus_flags;
};
struct bus_mux {
@@ -103,8 +104,10 @@ static int imx_ldb_connector_get_modes(struct drm_connector *connector)
struct drm_display_info *di = &connector->display_info;
num_modes = imx_ldb_ch->panel->funcs->get_modes(imx_ldb_ch->panel);
- if (!imx_ldb_ch->bus_format && di->num_bus_formats)
+ if (!imx_ldb_ch->bus_format && di->num_bus_formats) {
imx_ldb_ch->bus_format = di->bus_formats[0];
+ imx_ldb_ch->bus_flags = di->bus_flags;
+ }
if (num_modes > 0)
return num_modes;
}
@@ -206,7 +209,8 @@ static void imx_ldb_encoder_prepare(struct drm_encoder *encoder)
break;
}
- imx_drm_set_bus_format(encoder, bus_format);
+ imx_drm_set_bus_config(encoder, bus_format, 2, 3,
+ imx_ldb_ch->bus_flags);
}
static void imx_ldb_encoder_commit(struct drm_encoder *encoder)
@@ -626,6 +630,7 @@ static int imx_ldb_bind(struct device *dev, struct device *master, void *data)
/* fallback to display-timings node */
ret = of_get_drm_display_mode(child,
&channel->mode,
+ &channel->bus_flags,
OF_USE_NATIVE_MODE);
if (!ret)
channel->mode_valid = 1;
diff --git a/drivers/gpu/drm/imx/parallel-display.c b/drivers/gpu/drm/imx/parallel-display.c
index 4b2ec5d..f956387 100644
--- a/drivers/gpu/drm/imx/parallel-display.c
+++ b/drivers/gpu/drm/imx/parallel-display.c
@@ -35,6 +35,7 @@ struct imx_parallel_display {
void *edid;
int edid_len;
u32 bus_format;
+ u32 bus_flags;
struct drm_display_mode mode;
struct drm_panel *panel;
};
@@ -56,8 +57,10 @@ static int imx_pd_connector_get_modes(struct drm_connector *connector)
struct drm_display_info *di = &connector->display_info;
num_modes = imxpd->panel->funcs->get_modes(imxpd->panel);
- if (!imxpd->bus_format && di->num_bus_formats)
+ if (!imxpd->bus_format && di->num_bus_formats) {
imxpd->bus_format = di->bus_formats[0];
+ imxpd->bus_flags = di->bus_flags;
+ }
if (num_modes > 0)
return num_modes;
}
@@ -75,6 +78,7 @@ static int imx_pd_connector_get_modes(struct drm_connector *connector)
return -EINVAL;
ret = of_get_drm_display_mode(np, &imxpd->mode,
+ &imxpd->bus_flags,
OF_USE_NATIVE_MODE);
if (ret)
return ret;
@@ -110,7 +114,7 @@ static void imx_pd_encoder_prepare(struct drm_encoder *encoder)
{
struct imx_parallel_display *imxpd = enc_to_imxpd(encoder);
imx_drm_set_bus_config(encoder, imxpd->bus_format, 2, 3,
- imxpd->connector.display_info.bus_flags);
+ imxpd->bus_flags);
}
static void imx_pd_encoder_commit(struct drm_encoder *encoder)
diff --git a/include/drm/drm_modes.h b/include/drm/drm_modes.h
index a8164d2..48e1a56 100644
--- a/include/drm/drm_modes.h
+++ b/include/drm/drm_modes.h
@@ -459,7 +459,7 @@ void drm_display_mode_to_videomode(const struct drm_display_mode *dmode,
struct videomode *vm);
void drm_bus_flags_from_videomode(const struct videomode *vm, u32 *bus_flags);
int of_get_drm_display_mode(struct device_node *np,
- struct drm_display_mode *dmode,
+ struct drm_display_mode *dmode, u32 *bus_flags,
int index);
void drm_mode_set_name(struct drm_display_mode *mode);
--
2.1.4
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