iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/bridge/synopsys: dsi: Add a warning msg on dsi read requests

Browse Source 
The dcs/generic dsi read feature is not yet implemented so it
is important to warn the host_transfer() caller in case of
read operation requests.

Reviewed-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Philippe Cornu <philippe.cornu@st.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20180125103800.1999-2-philippe.cornu@st.com
This commit is contained in:
Philippe Cornu 2018-01-25 11:37:59 +01:00 committed by Archit Taneja
parent 21f815bf77
commit 4cda6e8e1e
1 changed files with 6 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c
View File

@ -398,6 +398,12 @@ static ssize_t dw_mipi_dsi_host_transfer(struct mipi_dsi_host *host,
struct mipi_dsi_packet packet;
int ret;
if (msg->rx_buf || msg->rx_len) {
/* TODO dw drv improvements: implement read feature */
dev_warn(dsi->dev, "read operations not yet implemented\n");
return -EINVAL;
}
ret = mipi_dsi_create_packet(&packet, msg);
if (ret) {
dev_err(dsi->dev, "failed to create packet: %d\n", ret);