Enforce the existing rules on when modes can be modified (never modify
the passed-in mode; only modify adjusted_mode in mode_fixup), by
adding const.
Signed-off-by: Daniel Stone <daniels at collabora.com>
---
drivers/gpu/drm/bridge/dw_hdmi.c | 7 ++++---
drivers/gpu/drm/msm/edp/edp_bridge.c | 4 ++--
drivers/gpu/drm/msm/hdmi/hdmi_bridge.c | 7 +++----
drivers/gpu/drm/sti/sti_dvo.c | 4 ++--
drivers/gpu/drm/sti/sti_hda.c | 4 ++--
drivers/gpu/drm/sti/sti_hdmi.c | 4 ++--
drivers/gpu/drm/tilcdc/tilcdc_crtc.c | 3 ++-
drivers/gpu/drm/tilcdc/tilcdc_drv.h | 3 ++-
include/drm/drm_crtc.h | 4 ++--
9 files changed, 21 insertions(+), 19 deletions(-)
diff --git a/drivers/gpu/drm/bridge/dw_hdmi.c b/drivers/gpu/drm/bridge/dw_hdmi.c
index cd6a706..7b1dbb4 100644
--- a/drivers/gpu/drm/bridge/dw_hdmi.c
+++ b/drivers/gpu/drm/bridge/dw_hdmi.c
@@ -1174,7 +1174,8 @@ static void hdmi_disable_overflow_interrupts(struct
dw_hdmi *hdmi)
HDMI_IH_MUTE_FC_STAT2);
}
-static int dw_hdmi_setup(struct dw_hdmi *hdmi, struct drm_display_mode *mode)
+static int dw_hdmi_setup(struct dw_hdmi *hdmi,
+ const struct drm_display_mode *mode)
{
int ret;
@@ -1341,8 +1342,8 @@ static void dw_hdmi_poweroff(struct dw_hdmi *hdmi)
}
static void dw_hdmi_bridge_mode_set(struct drm_bridge *bridge,
- struct drm_display_mode *orig_mode,
- struct drm_display_mode *mode)
+ const struct drm_display_mode *orig_mode,
+ const struct drm_display_mode *mode)
{
struct dw_hdmi *hdmi = bridge->driver_private;
diff --git a/drivers/gpu/drm/msm/edp/edp_bridge.c
b/drivers/gpu/drm/msm/edp/edp_bridge.c
index 2bc73f8..8c09a2e 100644
--- a/drivers/gpu/drm/msm/edp/edp_bridge.c
+++ b/drivers/gpu/drm/msm/edp/edp_bridge.c
@@ -52,8 +52,8 @@ static void edp_bridge_post_disable(struct drm_bridge *bridge)
}
static void edp_bridge_mode_set(struct drm_bridge *bridge,
- struct drm_display_mode *mode,
- struct drm_display_mode *adjusted_mode)
+ const struct drm_display_mode *mode,
+ const struct drm_display_mode *adjusted_mode)
{
struct drm_device *dev = bridge->dev;
struct drm_connector *connector;
diff --git a/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c
b/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c
index a7a1d82..2eb59eb 100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c
+++ b/drivers/gpu/drm/msm/hdmi/hdmi_bridge.c
@@ -130,16 +130,15 @@ static void hdmi_bridge_post_disable(struct drm_bridge
*bridge)
}
static void hdmi_bridge_mode_set(struct drm_bridge *bridge,
- struct drm_display_mode *mode,
- struct drm_display_mode *adjusted_mode)
+ const struct drm_display_mode *drm_mode,
+ const struct drm_display_mode *adjusted_mode)
{
struct hdmi_bridge *hdmi_bridge = to_hdmi_bridge(bridge);
struct hdmi *hdmi = hdmi_bridge->hdmi;
+ const struct drm_display_mode *mode = adjusted_mode;
int hstart, hend, vstart, vend;
uint32_t frame_ctrl;
- mode = adjusted_mode;
-
hdmi->pixclock = mode->clock * 1000;
hdmi->hdmi_mode = drm_match_cea_mode(mode) > 1;
diff --git a/drivers/gpu/drm/sti/sti_dvo.c b/drivers/gpu/drm/sti/sti_dvo.c
index aeb5070..b29272c 100644
--- a/drivers/gpu/drm/sti/sti_dvo.c
+++ b/drivers/gpu/drm/sti/sti_dvo.c
@@ -226,8 +226,8 @@ static void sti_dvo_pre_enable(struct drm_bridge *bridge)
}
static void sti_dvo_set_mode(struct drm_bridge *bridge,
- struct drm_display_mode *mode,
- struct drm_display_mode *adjusted_mode)
+ const struct drm_display_mode *mode,
+ const struct drm_display_mode *adjusted_mode)
{
struct sti_dvo *dvo = bridge->driver_private;
struct sti_mixer *mixer = to_sti_mixer(dvo->encoder->crtc);
diff --git a/drivers/gpu/drm/sti/sti_hda.c b/drivers/gpu/drm/sti/sti_hda.c
index a9bbb08..4a15d45 100644
--- a/drivers/gpu/drm/sti/sti_hda.c
+++ b/drivers/gpu/drm/sti/sti_hda.c
@@ -459,8 +459,8 @@ static void sti_hda_pre_enable(struct drm_bridge *bridge)
}
static void sti_hda_set_mode(struct drm_bridge *bridge,
- struct drm_display_mode *mode,
- struct drm_display_mode *adjusted_mode)
+ const struct drm_display_mode *mode,
+ const struct drm_display_mode *adjusted_mode)
{
struct sti_hda *hda = bridge->driver_private;
u32 mode_idx;
diff --git a/drivers/gpu/drm/sti/sti_hdmi.c b/drivers/gpu/drm/sti/sti_hdmi.c
index 1485ade..fc26a8c 100644
--- a/drivers/gpu/drm/sti/sti_hdmi.c
+++ b/drivers/gpu/drm/sti/sti_hdmi.c
@@ -527,8 +527,8 @@ static void sti_hdmi_pre_enable(struct drm_bridge *bridge)
}
static void sti_hdmi_set_mode(struct drm_bridge *bridge,
- struct drm_display_mode *mode,
- struct drm_display_mode *adjusted_mode)
+ const struct drm_display_mode *mode,
+ const struct drm_display_mode *adjusted_mode)
{
struct sti_hdmi *hdmi = bridge->driver_private;
int ret;
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
index c735884..8514055 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
+++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c
@@ -438,7 +438,8 @@ int tilcdc_crtc_max_width(struct drm_crtc *crtc)
return max_width;
}
-int tilcdc_crtc_mode_valid(struct drm_crtc *crtc, struct drm_display_mode
*mode)
+int tilcdc_crtc_mode_valid(struct drm_crtc *crtc,
+ const struct drm_display_mode *mode)
{
struct tilcdc_drm_private *priv = crtc->dev->dev_private;
unsigned int bandwidth;
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_drv.h
b/drivers/gpu/drm/tilcdc/tilcdc_drv.h
index 7596c14..f53c278 100644
--- a/drivers/gpu/drm/tilcdc/tilcdc_drv.h
+++ b/drivers/gpu/drm/tilcdc/tilcdc_drv.h
@@ -166,7 +166,8 @@ irqreturn_t tilcdc_crtc_irq(struct drm_crtc *crtc);
void tilcdc_crtc_update_clk(struct drm_crtc *crtc);
void tilcdc_crtc_set_panel_info(struct drm_crtc *crtc,
const struct tilcdc_panel_info *info);
-int tilcdc_crtc_mode_valid(struct drm_crtc *crtc, struct drm_display_mode
*mode);
+int tilcdc_crtc_mode_valid(struct drm_crtc *crtc,
+ const struct drm_display_mode *mode);
int tilcdc_crtc_max_width(struct drm_crtc *crtc);
#endif /* __TILCDC_DRV_H__ */
diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 2e80ad1..dbc1510 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -886,8 +886,8 @@ struct drm_bridge_funcs {
void (*disable)(struct drm_bridge *bridge);
void (*post_disable)(struct drm_bridge *bridge);
void (*mode_set)(struct drm_bridge *bridge,
- struct drm_display_mode *mode,
- struct drm_display_mode *adjusted_mode);
+ const struct drm_display_mode *mode,
+ const struct drm_display_mode *adjusted_mode);
void (*pre_enable)(struct drm_bridge *bridge);
void (*enable)(struct drm_bridge *bridge);
};
--
2.3.2
