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drm/omap: constify write buffers

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The write buffers are not modified, so they can be constant.

Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201215104657.802264-5-tomi.valkeinen@ti.com
This commit is contained in:
Sebastian Reichel 2020-12-15 12:45:37 +02:00 committed by Tomi Valkeinen
parent d0103cebe1
commit ee0c365c9e
2 changed files with 17 additions and 17 deletions
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24
drivers/gpu/drm/omapdrm/dss/dsi.c
View File

@ -2603,11 +2603,11 @@ static inline void dsi_vc_write_long_payload(struct dsi_data *dsi, int channel,
}
static int dsi_vc_send_long(struct dsi_data *dsi, int channel, u8 data_type,
u8 *data, u16 len, u8 ecc)
const u8 *data, u16 len, u8 ecc)
{
/*u32 val; */
int i;
u8 *p;
const u8 *p;
int r = 0;
u8 b1, b2, b3, b4;
@ -2700,7 +2700,7 @@ static int dsi_vc_send_null(struct dsi_data *dsi, int channel)
}
static int dsi_vc_write_nosync_common(struct dsi_data *dsi, int channel,
u8 *data, int len,
const u8 *data, int len,
enum dss_dsi_content_type type)
{
int r;
@ -2731,7 +2731,7 @@ static int dsi_vc_write_nosync_common(struct dsi_data *dsi, int channel,
}
static int dsi_vc_dcs_write_nosync(struct omap_dss_device *dssdev, int channel,
u8 *data, int len)
const u8 *data, int len)
{
struct dsi_data *dsi = to_dsi_data(dssdev);
@ -2740,7 +2740,7 @@ static int dsi_vc_dcs_write_nosync(struct omap_dss_device *dssdev, int channel,
}
static int dsi_vc_generic_write_nosync(struct omap_dss_device *dssdev, int channel,
u8 *data, int len)
const u8 *data, int len)
{
struct dsi_data *dsi = to_dsi_data(dssdev);
@ -2749,7 +2749,7 @@ static int dsi_vc_generic_write_nosync(struct omap_dss_device *dssdev, int chann
}
static int dsi_vc_write_common(struct omap_dss_device *dssdev,
int channel, u8 *data, int len,
int channel, const u8 *data, int len,
enum dss_dsi_content_type type)
{
struct dsi_data *dsi = to_dsi_data(dssdev);
@ -2778,15 +2778,15 @@ err:
return r;
}
static int dsi_vc_dcs_write(struct omap_dss_device *dssdev, int channel, u8 *data,
int len)
static int dsi_vc_dcs_write(struct omap_dss_device *dssdev, int channel,
const u8 *data, int len)
{
return dsi_vc_write_common(dssdev, channel, data, len,
DSS_DSI_CONTENT_DCS);
}
static int dsi_vc_generic_write(struct omap_dss_device *dssdev, int channel, u8 *data,
int len)
static int dsi_vc_generic_write(struct omap_dss_device *dssdev, int channel,
const u8 *data, int len)
{
return dsi_vc_write_common(dssdev, channel, data, len,
DSS_DSI_CONTENT_GENERIC);
@ -2812,7 +2812,7 @@ static int dsi_vc_dcs_send_read_request(struct dsi_data *dsi, int channel,
}
static int dsi_vc_generic_send_read_request(struct dsi_data *dsi, int channel,
u8 *reqdata, int reqlen)
const u8 *reqdata, int reqlen)
{
u16 data;
u8 data_type;
@ -2985,7 +2985,7 @@ err:
}
static int dsi_vc_generic_read(struct omap_dss_device *dssdev, int channel,
u8 *reqdata, int reqlen, u8 *buf, int buflen)
const u8 *reqdata, int reqlen, u8 *buf, int buflen)
{
struct dsi_data *dsi = to_dsi_data(dssdev);
int r;

10
drivers/gpu/drm/omapdrm/dss/omapdss.h
View File

@ -312,18 +312,18 @@ struct omapdss_dsi_ops {
/* data transfer */
int (*dcs_write)(struct omap_dss_device *dssdev, int channel,
u8 *data, int len);
const u8 *data, int len);
int (*dcs_write_nosync)(struct omap_dss_device *dssdev, int channel,
u8 *data, int len);
const u8 *data, int len);
int (*dcs_read)(struct omap_dss_device *dssdev, int channel, u8 dcs_cmd,
u8 *data, int len);
int (*gen_write)(struct omap_dss_device *dssdev, int channel,
u8 *data, int len);
const u8 *data, int len);
int (*gen_write_nosync)(struct omap_dss_device *dssdev, int channel,
u8 *data, int len);
const u8 *data, int len);
int (*gen_read)(struct omap_dss_device *dssdev, int channel,
u8 *reqdata, int reqlen,
const u8 *reqdata, int reqlen,
u8 *data, int len);
int (*bta_sync)(struct omap_dss_device *dssdev, int channel);