Platform glue drivers for dw_hdmi may need to access device-specific
data from their .mode_valid() implementation. They currently have no
clean way to do so, and one driver hacks around it by accessing the
dev_private data of the drm_device retrieved from the connector.
Pass the dw_hdmi pointer to .mode_valid() in order give context
information to drivers, and add a dw_hdmi_device() to retrieve the
struct device related to the context.
Signed-off-by: Laurent Pinchart <laurent.pinchart+rene...@ideasonboard.com>
---
drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 13 ++++++++++++-
drivers/gpu/drm/imx/dw_hdmi-imx.c | 4 ++--
drivers/gpu/drm/meson/meson_dw_hdmi.c | 3 ++-
drivers/gpu/drm/rcar-du/rcar_dw_hdmi.c | 2 +-
drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c | 3 ++-
drivers/gpu/drm/sun4i/sun8i_dw_hdmi.c | 6 ++++--
drivers/gpu/drm/sun4i/sun8i_dw_hdmi.h | 3 ++-
include/drm/bridge/dw_hdmi.h | 4 +++-
8 files changed, 28 insertions(+), 10 deletions(-)
diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index 30681398cfb0..97c7a9a4983c 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -2778,7 +2778,8 @@ dw_hdmi_bridge_mode_valid(struct drm_bridge *bridge,
return MODE_BAD;
if (hdmi->plat_data->mode_valid)
- mode_status = hdmi->plat_data->mode_valid(connector, mode);
+ mode_status = hdmi->plat_data->mode_valid(hdmi, connector,
+ mode);
return mode_status;
}
@@ -3395,6 +3396,16 @@ static void __dw_hdmi_remove(struct dw_hdmi *hdmi)
i2c_put_adapter(hdmi->ddc);
}
+/*
+ * Retrieve the device passed to the dw_hdmi_probe() or dw_hdmi_bind()
+ * functions.
+ */
+struct device *dw_hdmi_device(struct dw_hdmi *hdmi)
+{
+ return hdmi->dev;
+}
+EXPORT_SYMBOL_GPL(dw_hdmi_device);
+
/*
-----------------------------------------------------------------------------
* Probe/remove API, used from platforms based on the DRM bridge API.
*/
diff --git a/drivers/gpu/drm/imx/dw_hdmi-imx.c
b/drivers/gpu/drm/imx/dw_hdmi-imx.c
index ba4ca17fd4d8..ff5b03a4a86a 100644
--- a/drivers/gpu/drm/imx/dw_hdmi-imx.c
+++ b/drivers/gpu/drm/imx/dw_hdmi-imx.c
@@ -145,7 +145,7 @@ static const struct drm_encoder_helper_funcs
dw_hdmi_imx_encoder_helper_funcs =
};
static enum drm_mode_status
-imx6q_hdmi_mode_valid(struct drm_connector *con,
+imx6q_hdmi_mode_valid(struct dw_hdmi *hdmi, struct drm_connector *con,
const struct drm_display_mode *mode)
{
if (mode->clock < 13500)
@@ -158,7 +158,7 @@ imx6q_hdmi_mode_valid(struct drm_connector *con,
}
static enum drm_mode_status
-imx6dl_hdmi_mode_valid(struct drm_connector *con,
+imx6dl_hdmi_mode_valid(struct dw_hdmi *hdmi, struct drm_connector *con,
const struct drm_display_mode *mode)
{
if (mode->clock < 13500)
diff --git a/drivers/gpu/drm/meson/meson_dw_hdmi.c
b/drivers/gpu/drm/meson/meson_dw_hdmi.c
index 5be963e9db05..174d45ecdeda 100644
--- a/drivers/gpu/drm/meson/meson_dw_hdmi.c
+++ b/drivers/gpu/drm/meson/meson_dw_hdmi.c
@@ -630,7 +630,8 @@ static irqreturn_t dw_hdmi_top_thread_irq(int irq, void
*dev_id)
}
static enum drm_mode_status
-dw_hdmi_mode_valid(struct drm_connector *connector,
+dw_hdmi_mode_valid(struct dw_hdmi *hdmi,
+ struct drm_connector *connector,
const struct drm_display_mode *mode)
{
struct meson_drm *priv = connector->dev->dev_private;
diff --git a/drivers/gpu/drm/rcar-du/rcar_dw_hdmi.c
b/drivers/gpu/drm/rcar-du/rcar_dw_hdmi.c
index 452461dc96f2..3d2fdbeeb82d 100644
--- a/drivers/gpu/drm/rcar-du/rcar_dw_hdmi.c
+++ b/drivers/gpu/drm/rcar-du/rcar_dw_hdmi.c
@@ -38,7 +38,7 @@ static const struct rcar_hdmi_phy_params
rcar_hdmi_phy_params[] = {
};
static enum drm_mode_status
-rcar_hdmi_mode_valid(struct drm_connector *connector,
+rcar_hdmi_mode_valid(struct dw_hdmi *hdmi, struct drm_connector *connector,
const struct drm_display_mode *mode)
{
/*
diff --git a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
index 121aa8a63a76..32acfe2c3f58 100644
--- a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
+++ b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
@@ -220,7 +220,8 @@ static int rockchip_hdmi_parse_dt(struct rockchip_hdmi
*hdmi)
}
static enum drm_mode_status
-dw_hdmi_rockchip_mode_valid(struct drm_connector *connector,
+dw_hdmi_rockchip_mode_valid(struct dw_hdmi *hdmi,
+ struct drm_connector *connector,
const struct drm_display_mode *mode)
{
const struct dw_hdmi_mpll_config *mpll_cfg = rockchip_mpll_cfg;
diff --git a/drivers/gpu/drm/sun4i/sun8i_dw_hdmi.c
b/drivers/gpu/drm/sun4i/sun8i_dw_hdmi.c
index 972682bb8000..055ffefd1b60 100644
--- a/drivers/gpu/drm/sun4i/sun8i_dw_hdmi.c
+++ b/drivers/gpu/drm/sun4i/sun8i_dw_hdmi.c
@@ -31,7 +31,8 @@ sun8i_dw_hdmi_encoder_helper_funcs = {
};
static enum drm_mode_status
-sun8i_dw_hdmi_mode_valid_a83t(struct drm_connector *connector,
+sun8i_dw_hdmi_mode_valid_a83t(struct dw_hdmi *hdmi,
+ struct drm_connector *connector,
const struct drm_display_mode *mode)
{
if (mode->clock > 297000)
@@ -41,7 +42,8 @@ sun8i_dw_hdmi_mode_valid_a83t(struct drm_connector *connector,
}
static enum drm_mode_status
-sun8i_dw_hdmi_mode_valid_h6(struct drm_connector *connector,
+sun8i_dw_hdmi_mode_valid_h6(struct dw_hdmi *hdmi,
+ struct drm_connector *connector,
const struct drm_display_mode *mode)
{
/*
diff --git a/drivers/gpu/drm/sun4i/sun8i_dw_hdmi.h
b/drivers/gpu/drm/sun4i/sun8i_dw_hdmi.h
index 8e64945167e9..f831cb351d72 100644
--- a/drivers/gpu/drm/sun4i/sun8i_dw_hdmi.h
+++ b/drivers/gpu/drm/sun4i/sun8i_dw_hdmi.h
@@ -176,7 +176,8 @@ struct sun8i_hdmi_phy {
};
struct sun8i_dw_hdmi_quirks {
- enum drm_mode_status (*mode_valid)(struct drm_connector *connector,
+ enum drm_mode_status (*mode_valid)(struct dw_hdmi *hdmi,
+ struct drm_connector *connector,
const struct drm_display_mode *mode);
unsigned int set_rate : 1;
unsigned int use_drm_infoframe : 1;
diff --git a/include/drm/bridge/dw_hdmi.h b/include/drm/bridge/dw_hdmi.h
index 0b34a12c4a1c..c98010a53683 100644
--- a/include/drm/bridge/dw_hdmi.h
+++ b/include/drm/bridge/dw_hdmi.h
@@ -124,7 +124,8 @@ struct dw_hdmi_phy_ops {
struct dw_hdmi_plat_data {
struct regmap *regm;
- enum drm_mode_status (*mode_valid)(struct drm_connector *connector,
+ enum drm_mode_status (*mode_valid)(struct dw_hdmi *hdmi,
+ struct drm_connector *connector,
const struct drm_display_mode *mode);
unsigned long input_bus_format;
unsigned long input_bus_encoding;
@@ -153,6 +154,7 @@ void dw_hdmi_unbind(struct dw_hdmi *hdmi);
struct dw_hdmi *dw_hdmi_bind(struct platform_device *pdev,
struct drm_encoder *encoder,
const struct dw_hdmi_plat_data *plat_data);
+struct device *dw_hdmi_device(struct dw_hdmi *hdmi);
void dw_hdmi_resume(struct dw_hdmi *hdmi);
--
Regards,
Laurent Pinchart
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