Hi Neil, On Tue, Jun 08, 2021 at 10:10:05AM +0200, Neil Armstrong wrote: > On 07/06/2021 19:42, Marek Vasut wrote: > > Add driver for TI SN65DSI83 Single-link DSI to Single-link LVDS bridge > > and TI SN65DSI84 Single-link DSI to Dual-link or 2x Single-link LVDS > > bridge. TI SN65DSI85 is unsupported due to lack of hardware to test on, > > but easy to add. > > > > The driver operates the chip via I2C bus. Currently the LVDS clock are > > always derived from DSI clock lane, which is the usual mode of operation. > > Support for clock from external oscillator is not implemented, but it is > > easy to add if ever needed. Only RGB888 pixel format is implemented, the > > LVDS666 is not supported, but could be added if needed. > > > > Reviewed-by: Linus Walleij <linus.walleij@xxxxxxxxxx> > > Reviewed-by: Frieder Schrempf <frieder.schrempf@xxxxxxxxxx> > > Tested-by: Frieder Schrempf <frieder.schrempf@xxxxxxxxxx> > > Tested-by: Adam Ford <aford173@xxxxxxxxx> > > Signed-off-by: Marek Vasut <marex@xxxxxxx> > > Cc: Douglas Anderson <dianders@xxxxxxxxxxxx> > > Cc: Jagan Teki <jagan@xxxxxxxxxxxxxxxxxxxx> > > Cc: Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> > > Cc: Linus Walleij <linus.walleij@xxxxxxxxxx> > > Cc: Loic Poulain <loic.poulain@xxxxxxxxxx> > > Cc: Philippe Schenker <philippe.schenker@xxxxxxxxxxx> > > Cc: Sam Ravnborg <sam@xxxxxxxxxxxx> > > Cc: Stephen Boyd <swboyd@xxxxxxxxxxxx> > > Cc: Valentin Raevsky <valentin@xxxxxxxxxxxxxx> > > To: dri-devel@xxxxxxxxxxxxxxxxxxxxx > > --- > > V2: - Use dev_err_probe() > > - Set REG_RC_RESET as volatile > > - Wait for PLL stabilization by polling REG_RC_LVDS_PLL > > - Use ctx->mode = *adj instead of *mode in sn65dsi83_mode_set > > - Add tested DSI84 support in dual-link mode > > - Correctly set VCOM > > - Fill in missing DSI CHB and LVDS CHB bits from DSI84 and DSI85 > > datasheets, with that all the reserved bits make far more sense > > as the DSI83 and DSI84 seems to be reduced version of DSI85 > > V3: - Handle the dual-link LVDS with two port panel or bridge > > V4: - Add RB from Linus Walleij > > - Rename REG_DSI_LANE_LVDS_LINK_CFG_DUAL to > > REG_DSI_LANE_DSI_CHANNEL_MODE_SINGLE and fill in the remaining > > DSI link options from DSI85 datasheet. DSI85 can do dual and 2x > > single DSI mode, but DSI85 is currently unsupported by the > > driver. Add a comment about DSI85, so that all the places which > > need to be adjusted for DSI85 are marked accordingly. > > - Add REG_DSI_LANE_LEFT_RIGHT_PIXELS bit for DSI > > - Add handling for JEIDA18/JEIDA24/SPWG24 LVDS formats. Use SPWG24 > > as fallback on output bridges until they are all fixed. > > - Patch DSI bus format to fixed RGB888_1X24 instead of passing > > through the LVDS bus format. > > V5: - Move bus format patching to mode_fixup > > - Use cpu_to_le16() to guarantee endianness in regmap_bulk_write() > > V6: - Cast of_device_get_match_data() output to uintptr_t first > > --- > > drivers/gpu/drm/bridge/Kconfig | 10 + > > drivers/gpu/drm/bridge/Makefile | 1 + > > drivers/gpu/drm/bridge/ti-sn65dsi83.c | 709 ++++++++++++++++++++++++++ > > 3 files changed, 720 insertions(+) > > create mode 100644 drivers/gpu/drm/bridge/ti-sn65dsi83.c > > > > Looks complete & well reviewed, LGTM > > Rob, Laurent ? is it ok for you ? No objection. -- Regards, Laurent Pinchart
