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drm/omap: dsi: drop unused memory_read()

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memory_read is not used, so we can drop the code.

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/20201215104657.802264-18-tomi.valkeinen@ti.com
This commit is contained in:
Sebastian Reichel 2020-12-15 12:45:50 +02:00 • committed by Tomi Valkeinen
parent 7c5662babf
commit e94793ee8e
2 changed files with 0 additions and 97 deletions
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93
drivers/gpu/drm/omapdrm/displays/panel-dsi-cm.c
View file

@ -930,97 +930,6 @@ static int dsicm_get_te(struct omap_dss_device *dssdev)
return r;
}
static int dsicm_set_max_rx_packet_size(struct omap_dss_device *dssdev,
u16 size)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct mipi_dsi_device *dsi = ddata->dsi;
return mipi_dsi_set_maximum_return_packet_size(dsi, size);
}
static int dsicm_memory_read(struct omap_dss_device *dssdev,
void *buf, size_t size,
u16 x, u16 y, u16 w, u16 h)
{
struct panel_drv_data *ddata = to_panel_data(dssdev);
struct mipi_dsi_device *dsi = ddata->dsi;
struct omap_dss_device *src = ddata->src;
int r;
int first = 1;
int plen;
unsigned int buf_used = 0;
if (size < w * h * 3)
return -ENOMEM;
mutex_lock(&ddata->lock);
if (!ddata->enabled) {
r = -ENODEV;
goto err1;
}
size = min((u32)w * h * 3,
ddata->vm.hactive * ddata->vm.vactive * 3);
src->ops->dsi.bus_lock(src);
r = dsicm_wake_up(ddata);
if (r)
goto err2;
/* plen 1 or 2 goes into short packet. until checksum error is fixed,
* use short packets. plen 32 works, but bigger packets seem to cause
* an error. */
if (size % 2)
plen = 1;
else
plen = 2;
dsicm_set_update_window(ddata, x, y, w, h);
r = dsicm_set_max_rx_packet_size(dssdev, plen);
if (r)
goto err2;
while (buf_used < size) {
u8 dcs_cmd = first ? 0x2e : 0x3e;
first = 0;
r = mipi_dsi_dcs_read(dsi, dcs_cmd,
buf + buf_used, size - buf_used);
if (r < 0) {
dev_err(dssdev->dev, "read error\n");
goto err3;
}
buf_used += r;
if (r < plen) {
dev_err(&ddata->dsi->dev, "short read\n");
break;
}
if (signal_pending(current)) {
dev_err(&ddata->dsi->dev, "signal pending, "
"aborting memory read\n");
r = -ERESTARTSYS;
goto err3;
}
}
r = buf_used;
err3:
dsicm_set_max_rx_packet_size(dssdev, 1);
err2:
src->ops->dsi.bus_unlock(src);
err1:
mutex_unlock(&ddata->lock);
return r;
}
static void dsicm_ulps_work(struct work_struct *work)
{
struct panel_drv_data *ddata = container_of(work, struct panel_drv_data,
@ -1093,8 +1002,6 @@ static const struct omap_dss_driver dsicm_dss_driver = {
.enable_te = dsicm_enable_te,
.get_te = dsicm_get_te,
.memory_read = dsicm_memory_read,
};
static int dsicm_probe_of(struct mipi_dsi_device *dsi)

4
drivers/gpu/drm/omapdrm/dss/omapdss.h
View file

@ -392,10 +392,6 @@ struct omap_dss_driver {
int (*enable_te)(struct omap_dss_device *dssdev, bool enable);
int (*get_te)(struct omap_dss_device *dssdev);
int (*memory_read)(struct omap_dss_device *dssdev,
void *buf, size_t size,
u16 x, u16 y, u16 w, u16 h);
};
struct dss_device *omapdss_get_dss(void);