linux/drivers/gpu/drm/bridge, branch v5.14

drm/bridge: ti-sn65dsi83: Fix syntax formatting issues

2021-06-08T10:29:31Z

Fix checkpatch.pl --strict -f drivers/gpu/drm/bridge/ti-sn65dsi83.c CHECKs, no functional change. This is the same modification done to V7 of the original patch. Signed-off-by: Marek Vasut Cc: Adam Ford Cc: Douglas Anderson Cc: Frieder Schrempf Cc: Jagan Teki Cc: Laurent Pinchart Cc: Linus Walleij Cc: Loic Poulain Cc: Marek Vasut Cc: Philippe Schenker Cc: Sam Ravnborg Cc: Stephen Boyd Cc: Valentin Raevsky To: dri-devel@lists.freedesktop.org Reviewed-by: Robert Foss Signed-off-by: Robert Foss Link: https://patchwork.freedesktop.org/patch/msgid/20210608095322.23644-1-marex@denx.de

drm/bridge: ti-sn65dsi83: Add TI SN65DSI83 and SN65DSI84 driver

2021-06-08T09:42:25Z

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 Reviewed-by: Frieder Schrempf Tested-by: Frieder Schrempf Tested-by: Adam Ford Signed-off-by: Marek Vasut Cc: Douglas Anderson Cc: Jagan Teki Cc: Laurent Pinchart Cc: Linus Walleij Cc: Loic Poulain Cc: Philippe Schenker Cc: Sam Ravnborg Cc: Stephen Boyd Cc: Valentin Raevsky To: dri-devel@lists.freedesktop.org Signed-off-by: Robert Foss Link: https://patchwork.freedesktop.org/patch/msgid/20210607174258.16300-2-marex@denx.de

drm: bridge: cdns-mhdp8546: Fix PM reference leak in

2021-05-31T13:50:59Z

pm_runtime_get_sync will increment pm usage counter even it failed. Forgetting to putting operation will result in reference leak here. Fix it by replacing it with pm_runtime_resume_and_get to keep usage counter balanced. Reported-by: Hulk Robot Signed-off-by: Yu Kuai Reviewed-by: Robert Foss Signed-off-by: Robert Foss Link: https://patchwork.freedesktop.org/patch/msgid/20210531135622.3348252-1-yukuai3@huawei.com

drm/bridge: lt8912b: Drop unused includes

2021-05-31T10:44:20Z

The Lontium bridge is including legacy header files for GPIO but not using them. Delete the includes. Cc: Adrien Grassein Cc: Robert Foss Signed-off-by: Linus Walleij Reviewed-by: Adren Grassein Signed-off-by: Robert Foss Link: https://patchwork.freedesktop.org/patch/msgid/20210529002759.468964-1-linus.walleij@linaro.org

drm/bridge: DRM_CROS_EC_ANX7688 should depend on I2C_CROS_EC_TUNNEL

2021-05-27T12:09:27Z

The ChromeOS EC ANX7688 bridge is connected to a ChromeOS Embedded Controller, and is accessed using I2C tunneling through the Embedded Controller. Hence add a dependency on I2C_CROS_EC_TUNNEL, to prevent asking the user about this driver when configuring a kernel without support for the ChromeOS EC tunnel I2C bus. Fixes: 44602b10d7f2a5f7 ("drm/bridge: Add ChromeOS EC ANX7688 bridge driver support") Signed-off-by: Geert Uytterhoeven Reviewed-by: Enric Balletbo i Serra Signed-off-by: Robert Foss Link: https://patchwork.freedesktop.org/patch/msgid/d107d1840b83607baee8571cc5d88973fc32b519.1622015323.git.geert+renesas@glider.be

drm/bridge: lt8912b: fix platform_no_drv_owner.cocci warnings

2021-05-27T12:06:21Z

./drivers/gpu/drm/bridge/lontium-lt8912b.c:758:3-8: No need to set .owner here. The core will do it. Remove .owner field if calls are used which set it automatically Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci Reported-by: Hulk Robot Signed-off-by: Zou Wei Reviewed-by: Robert Foss Signed-off-by: Robert Foss Link: https://patchwork.freedesktop.org/patch/msgid/1622109018-54648-1-git-send-email-zou_wei@huawei.com

drm: bridge: cdns-mhdp8546: Fix inconsistent indenting

2021-05-27T12:01:10Z

Eliminate the follow smatch warning: drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c:2143 cdns_mhdp_bridge_atomic_reset() warn: inconsistent indenting. Reported-by: Abaci Robot Signed-off-by: Jiapeng Chong Reviewed-by: Robert Foss Signed-off-by: Robert Foss Link: https://patchwork.freedesktop.org/patch/msgid/1621852953-51325-1-git-send-email-jiapeng.chong@linux.alibaba.com

drm/bridge: cdns: Fix PM reference leak in cdns_dsi_transfer()

2021-05-27T11:46:36Z

pm_runtime_get_sync will increment pm usage counter even it failed. Forgetting to putting operation will result in reference leak here. Fix it by replacing it with pm_runtime_resume_and_get to keep usage counter balanced. Reported-by: Hulk Robot Signed-off-by: Zou Wei Reviewed-by: Robert Foss Signed-off-by: Robert Foss Link: https://patchwork.freedesktop.org/patch/msgid/1621840862-106024-1-git-send-email-zou_wei@huawei.com

drm/bridge: anx7625: Synchronously run runtime suspend.

2021-05-20T10:27:20Z

Originally when using pm_runtime_put, there's a chance that the runtime suspend hook will be run after the following anx7625_bridge_mode_set call, resulting in the display_timing_valid field to be cleared, and the following power on fail. Change all pm_runtime_put to pm_runtime_put_sync, so all power off operations are guaranteed to be done after the call returns. Fixes: 60487584a79a ("drm/bridge: anx7625: refactor power control to use runtime PM framework") Signed-off-by: Pi-Hsun Shih Tested-by: Tzung-Bi Shih Reviewed-by: Robert Foss Signed-off-by: Robert Foss Link: https://patchwork.freedesktop.org/patch/msgid/20210520064508.3121211-1-pihsun@chromium.org

drm/bridge: Add ChromeOS EC ANX7688 bridge driver support

2021-05-18T14:41:01Z

This driver adds support for the ChromeOS EC ANX7688 HDMI to DP converter For our use case, the only reason the Linux kernel driver is necessary is to reject resolutions that require more bandwidth than what is available on the DP side. DP bandwidth and lane count are reported by the bridge via 2 registers and, as far as we know, only chips that have a firmware version greater than 0.85 support these two registers. Signed-off-by: Nicolas Boichat Signed-off-by: Hsin-Yi Wang [The driver is OF only so should depends on CONFIG_OF] Reported-by: kbuild test robot Signed-off-by: Enric Balletbo i Serra [convert to i2c driver, rename to cros_ec_anx7688, add err checks] Signed-off-by: Dafna Hirschfeld Reviewed-by: Laurent Pinchart Signed-off-by: Robert Foss Link: https://patchwork.freedesktop.org/patch/msgid/20210518141927.24795-3-dafna.hirschfeld@collabora.com