drm: bridge: dw-hdmi: Constify mode argument to dw_hdmi_phy_ops .init()

The PHY .init() must not modify the mode it receives. Make the pointer
const to enfore that.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200526011505.31884-17-laurent.pinchart+renesas@ideasonboard.com

diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index 23650e6..6e6a3d9 100644 (file)
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -1531,7 +1531,7 @@ static int hdmi_phy_configure(struct dw_hdmi *hdmi)
 }
 
 static int dw_hdmi_phy_init(struct dw_hdmi *hdmi, void *data,
-                           struct drm_display_mode *mode)
+                           const struct drm_display_mode *mode)
 {
        int i, ret;
 

diff --git a/drivers/gpu/drm/meson/meson_dw_hdmi.c b/drivers/gpu/drm/meson/meson_dw_hdmi.c
index 71d5999..757c17f 100644 (file)
--- a/drivers/gpu/drm/meson/meson_dw_hdmi.c
+++ b/drivers/gpu/drm/meson/meson_dw_hdmi.c
@@ -297,7 +297,7 @@ static inline void dw_hdmi_dwc_write_bits(struct meson_dw_hdmi *dw_hdmi,
 
 /* Setup PHY bandwidth modes */
 static void meson_hdmi_phy_setup_mode(struct meson_dw_hdmi *dw_hdmi,
-                                     struct drm_display_mode *mode)
+                                     const struct drm_display_mode *mode)
 {
        struct meson_drm *priv = dw_hdmi->priv;
        unsigned int pixel_clock = mode->clock;
@@ -427,7 +427,7 @@ static void dw_hdmi_set_vclk(struct meson_dw_hdmi *dw_hdmi,
 }
 
 static int dw_hdmi_phy_init(struct dw_hdmi *hdmi, void *data,
-                           struct drm_display_mode *mode)
+                           const struct drm_display_mode *mode)
 {
        struct meson_dw_hdmi *dw_hdmi = (struct meson_dw_hdmi *)data;
        struct meson_drm *priv = dw_hdmi->priv;

diff --git a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
index d286751..10e210f 100644 (file)
--- a/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
+++ b/drivers/gpu/drm/rockchip/dw_hdmi-rockchip.c
@@ -312,7 +312,7 @@ static const struct drm_encoder_helper_funcs dw_hdmi_rockchip_encoder_helper_fun
 };
 
 static int dw_hdmi_rockchip_genphy_init(struct dw_hdmi *dw_hdmi, void *data,
-                            struct drm_display_mode *mode)
+                                       const struct drm_display_mode *mode)
 {
        struct rockchip_hdmi *hdmi = (struct rockchip_hdmi *)data;
 

diff --git a/drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c b/drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c
index 43643ad..8e078ca 100644 (file)
--- a/drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c
+++ b/drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c
@@ -341,7 +341,7 @@ static int sun8i_hdmi_phy_config_h3(struct dw_hdmi *hdmi,
 }
 
 static int sun8i_hdmi_phy_config(struct dw_hdmi *hdmi, void *data,
-                                struct drm_display_mode *mode)
+                                const struct drm_display_mode *mode)
 {
        struct sun8i_hdmi_phy *phy = (struct sun8i_hdmi_phy *)data;
        u32 val = 0;

diff --git a/include/drm/bridge/dw_hdmi.h b/include/drm/bridge/dw_hdmi.h
index fec293b..f930d21 100644 (file)
--- a/include/drm/bridge/dw_hdmi.h
+++ b/include/drm/bridge/dw_hdmi.h
@@ -114,7 +114,7 @@ struct dw_hdmi_phy_config {
 
 struct dw_hdmi_phy_ops {
        int (*init)(struct dw_hdmi *hdmi, void *data,
-                   struct drm_display_mode *mode);
+                   const struct drm_display_mode *mode);
        void (*disable)(struct dw_hdmi *hdmi, void *data);
        enum drm_connector_status (*read_hpd)(struct dw_hdmi *hdmi, void *data);
        void (*update_hpd)(struct dw_hdmi *hdmi, void *data,