Hi Archit, And many thanks, Philippe :-) On 01/30/2018 03:09 PM, Archit Taneja wrote: > > > On 01/26/2018 06:14 AM, Brian Norris wrote: >> On Thu, Jan 25, 2018 at 11:37:59AM +0100, Philippe Cornu wrote: >>> 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. >>> >>> Signed-off-by: Philippe Cornu <philippe.cornu at st.com> >> >> Awesome, thanks. >> >> Reviewed-by: Brian Norris <briannorris at chromium.org> >> > > Queued to drm-misc-next. > > Thanks, > Archit > >>> --- >>> ? drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c | 6 ++++++ >>> ? 1 file changed, 6 insertions(+) >>> >>> diff --git a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c >>> b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c >>> index daec7881be6d..72ecaeb40822 100644 >>> --- a/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c >>> +++ b/drivers/gpu/drm/bridge/synopsys/dw-mipi-dsi.c >>> @@ -405,6 +405,12 @@ 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); >>> -- >>> 2.15.1 >>> >