From: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxx>
The write buffers are not modified, so they can be constant.
Signed-off-by: Sebastian Reichel <sebastian.reichel@xxxxxxxxxxxxx>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@xxxxxx>
Reviewed-by: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx>
---
drivers/gpu/drm/omapdrm/dss/dsi.c | 24 ++++++++++++------------
drivers/gpu/drm/omapdrm/dss/omapdss.h | 10 +++++-----
2 files changed, 17 insertions(+), 17 deletions(-)
diff --git a/drivers/gpu/drm/omapdrm/dss/dsi.c b/drivers/gpu/drm/omapdrm/dss/dsi.c
index 2d7350f34628..91c8c1f29ae2 100644
--- a/drivers/gpu/drm/omapdrm/dss/dsi.c
+++ b/drivers/gpu/drm/omapdrm/dss/dsi.c
@@ -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 @@ static int dsi_vc_write_common(struct omap_dss_device *dssdev,
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 @@ static int dsi_vc_dcs_read(struct omap_dss_device *dssdev, int channel, u8 dcs_c
}
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;
diff --git a/drivers/gpu/drm/omapdrm/dss/omapdss.h b/drivers/gpu/drm/omapdrm/dss/omapdss.h
index a316b347785b..c3d65da2e7cf 100644
--- a/drivers/gpu/drm/omapdrm/dss/omapdss.h
+++ b/drivers/gpu/drm/omapdrm/dss/omapdss.h
@@ -309,18 +309,18 @@ 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);
--
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