[PATCH 17/27] drm: bridge: dw-hdmi: Constify mode argument to internal functions

Laurent Pinchart laurent.pinchart+renesas at ideasonboard.com
Tue May 26 01:14:55 UTC 2020

Several internal functions take a drm_display_mode argument to configure
the HDMI encoder or the HDMI PHY. They must not modify the mode, make
the pointer const to enforce that.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas at ideasonboard.com>
 drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
index 6e6a3d95e68e..5b5f07a23400 100644
--- a/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
+++ b/drivers/gpu/drm/bridge/synopsys/dw-hdmi.c
@@ -1628,7 +1628,8 @@ static void hdmi_tx_hdcp_config(struct dw_hdmi *hdmi)
-static void hdmi_config_AVI(struct dw_hdmi *hdmi, struct drm_display_mode *mode)
+static void hdmi_config_AVI(struct dw_hdmi *hdmi,
+			    const struct drm_display_mode *mode)
 	struct hdmi_avi_infoframe frame;
 	u8 val;
@@ -1756,7 +1757,7 @@ static void hdmi_config_AVI(struct dw_hdmi *hdmi, struct drm_display_mode *mode)
 static void hdmi_config_vendor_specific_infoframe(struct dw_hdmi *hdmi,
-						 struct drm_display_mode *mode)
+						  const struct drm_display_mode *mode)
 	struct hdmi_vendor_infoframe frame;
 	u8 buffer[10];
@@ -2112,7 +2113,8 @@ static void hdmi_disable_overflow_interrupts(struct dw_hdmi *hdmi)
-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;

Laurent Pinchart

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