BMC/Intel-BMC/linux.git/drivers/gpu/drm/bridge/cadence, branch dev-5.15-intel

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

2021-05-31T13:50:59+00:00

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: cdns-mhdp8546: Fix inconsistent indenting

2021-05-27T12:01:10+00:00

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/dp: Add backpointer to drm_device in drm_dp_aux

2021-04-27T22:43:42+00:00

This is something that we've wanted for a while now: the ability to actually look up the respective drm_device for a given drm_dp_aux struct. This will also allow us to transition over to using the drm_dbg_*() helpers for debug message printing, as we'll finally have a drm_device to reference for doing so. Note that there is one limitation with this - because some DP AUX adapters exist as platform devices which are initialized independently of their respective DRM devices, one cannot rely on drm_dp_aux->drm_dev to always be non-NULL until drm_dp_aux_register() has been called. We make sure to point this out in the documentation for struct drm_dp_aux. v3: * Add WARN_ON_ONCE() to drm_dp_aux_register() if drm_dev isn't filled out Signed-off-by: Lyude Paul Acked-by: Thierry Reding Link: https://patchwork.freedesktop.org/patch/msgid/20210423184309.207645-4-lyude@redhat.com Reviewed-by: Dave Airlie

drm/bridge/cdns-mhdp8546: Register DP aux channel with userspace

2021-04-27T22:43:41+00:00

Just adds some missing calls to drm_dp_aux_register()/drm_dp_aux_unregister() for when we attach/detach the bridge. Signed-off-by: Lyude Paul Link: https://patchwork.freedesktop.org/patch/msgid/20210423184309.207645-2-lyude@redhat.com Reviewed-by: Dave Airlie

drm: bridge: cdns-mhdp8546: Enable HDCP

2021-04-13T08:28:05+00:00

This patch enable HDCP in MHDP driver. Signed-off-by: Parshuram Thombare Reviewed-by: Robert Foss Signed-off-by: Robert Foss Link: https://patchwork.freedesktop.org/patch/msgid/1618078542-30679-1-git-send-email-pthombar@cadence.com

drm: use getter/setter functions

2021-02-10T13:10:59+00:00

Use getter and setter functions, for platform_device structures and a mipi_dsi_device structure. Signed-off-by: Julia Lawall Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20210209211304.1261740-1-Julia.Lawall@inria.fr

drm: bridge: cdns: Kconfig: Switch over dependency to ARCH_K3

2020-11-08T10:05:35+00:00

With the integration of chip-id detection scheme in kernel[1], there is no specific need to maintain multitudes of SoC specific config options, discussed as per [2], we have deprecated the usage in other places for v5.10-rc1. Fix the missing user so that we can clean up the configs in v5.11. [1] drivers/soc/ti/k3-socinfo.c commit 907a2b7e2fc7 ("soc: ti: add k3 platforms chipid module driver") [2] https://lore.kernel.org/linux-arm-kernel/20200908112534.t5bgrjf7y3a6l2ss@akan/ Fixes: afba7e6c5fc1 ("drm: bridge: cdns-mhdp8546: Add TI J721E wrapper") Cc: Swapnil Jakhade Cc: Tomi Valkeinen Cc: Laurent Pinchart Cc: Yuti Amonkar Cc: Jyri Sarha Signed-off-by: Nishanth Menon Reviewed-by: Tomi Valkeinen Signed-off-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20201026165441.22894-1-nm@ti.com

drm: bridge: cdns-mhdp8546: fix compile warning

2020-10-01T10:49:22+00:00

On x64 we get: drivers/gpu/drm/bridge/cadence/cdns-mhdp8546-core.c:751:10: warning: conversion from 'long unsigned int' to 'unsigned int' changes value from '18446744073709551613' to '4294967293' [-Woverflow] The registers are 32 bit, so fix by casting to u32. Fixes: fb43aa0acdfd ("drm: bridge: Add support for Cadence MHDP8546 DPI/DP bridge") Signed-off-by: Tomi Valkeinen Reported-by: Stephen Rothwell Reviewed-by: Swapnil Jakhade Acked-by: Laurent Pinchart Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20200929091918.24813-1-tomi.valkeinen@ti.com

drm: bridge: cdns-mhdp8546: Add TI J721E wrapper

2020-09-18T12:16:02+00:00

Add J721E wrapper for mhdp, which sets up the clock and data muxes. Signed-off-by: Jyri Sarha Signed-off-by: Yuti Amonkar Signed-off-by: Swapnil Jakhade Reviewed-by: Tomi Valkeinen Reviewed-by: Laurent Pinchart Signed-off-by: Tomi Valkeinen

drm: bridge: Add support for Cadence MHDP8546 DPI/DP bridge

2020-09-18T12:16:01+00:00

Add a new DRM bridge driver for Cadence MHDP8546 DPTX IP used in TI J721E SoC. MHDP DPTX IP is the component that complies with VESA DisplayPort (DP) and embedded Display Port (eDP) standards. It integrates uCPU running the embedded Firmware (FW) interfaced over APB interface. Basically, it takes a DPI stream as input and outputs it encoded in DP format. Currently, it supports only SST mode. Co-developed-by: Tomi Valkeinen Co-developed-by: Jyri Sarha Signed-off-by: Tomi Valkeinen Signed-off-by: Jyri Sarha Signed-off-by: Quentin Schulz Signed-off-by: Yuti Amonkar Signed-off-by: Swapnil Jakhade Reviewed-by: Laurent Pinchart Signed-off-by: Tomi Valkeinen