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path: root/drivers/gpu/drm/rockchip/cdn-dp-reg.c
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2020-04-27drm/rockchip: Remove unneeded semicolonZheng Bin1-3/+3
Fixes coccicheck warning: drivers/gpu/drm/rockchip/cdn-dp-reg.c:604:2-3: Unneeded semicolon drivers/gpu/drm/rockchip/cdn-dp-reg.c:622:2-3: Unneeded semicolon drivers/gpu/drm/rockchip/cdn-dp-reg.c:703:2-3: Unneeded semicolon Reported-by: Hulk Robot <[email protected]> Signed-off-by: Zheng Bin <[email protected]> Signed-off-by: Heiko Stuebner <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2019-10-23drm/rockchip: Avoid drm_dp_link helpersThierry Reding1-10/+9
During the discussion of patches that enhance the drm_dp_link helpers it was concluded that these helpers aren't very useful to begin with. Start pushing the equivalent code into individual drivers to ultimately remove them. Signed-off-by: Thierry Reding <[email protected]> Reviewed-by: Daniel Vetter <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2019-06-19Merge remote-tracking branch 'drm/drm-next' into drm-misc-nextMaarten Lankhorst1-9/+1
remove-fbcon-notifiers topic branch is based on rc4, so we need a fresh backmerge of drm-next to pull it in. Signed-off-by: Maarten Lankhorst <[email protected]>
2019-06-14drm/rockchip: cdn-dp: correct rate in the struct drm_dp_link assignmentSandor Yu1-2/+2
The value stored in the rate field of struct drm_dp_link should be the actual link-rate and not the bw_code. Right now the driver stores the code and converts it to the rate. So fixup the driver to store the rate itself. Signed-off-by: Sandor Yu <[email protected]> Signed-off-by: Heiko Stuebner <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2019-06-05treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 282Thomas Gleixner1-9/+1
Based on 1 normalized pattern(s): this software is licensed under the terms of the gnu general public license version 2 as published by the free software foundation and may be copied distributed and modified under those terms this program is distributed in the hope that it will be useful but without any warranty without even the implied warranty of merchantability or fitness for a particular purpose see the gnu general public license for more details extracted by the scancode license scanner the SPDX license identifier GPL-2.0-only has been chosen to replace the boilerplate/reference in 285 file(s). Signed-off-by: Thomas Gleixner <[email protected]> Reviewed-by: Alexios Zavras <[email protected]> Reviewed-by: Allison Randal <[email protected]> Cc: [email protected] Link: https://lkml.kernel.org/r/[email protected] Signed-off-by: Greg Kroah-Hartman <[email protected]>
2019-01-28drm/rockchip: fix for mailbox read validation.Damian Kos1-1/+1
This is basically the same fix as in commit fa68d4f8476b ("drm/rockchip: fix for mailbox read size") but for cdn_dp_mailbox_validate_receive function. See patchwork.kernel.org/patch/10671981/ for details. Signed-off-by: Damian Kos <[email protected]> Signed-off-by: Heiko Stuebner <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2018-11-19drm/rockchip: fix for mailbox read sizeDamian Kos1-1/+1
Some of the functions (like cdn_dp_dpcd_read, cdn_dp_get_edid_block) allow to read 64KiB, but the cdn_dp_mailbox_read_receive, that is used by them, can read only up to 255 bytes at once. Normally, it's not a big issue as DPCD or EDID reads won't (hopefully) exceed that value. The real issue here is the revocation list read during the HDCP authentication process. (problematic use case: https://chromium.googlesource.com/chromiumos/third_party/kernel/+/chromeos-4.4/drivers/gpu/drm/rockchip/cdn-dp-reg.c#1152) The list can reach 127*5+4 bytes (num devs * 5 bytes per ID/Bksv + 4 bytes of an additional info). In other words - CTSes with HDCP Repeater won't pass without this fix. Oh, and the driver will most likely stop working (best case scenario). Signed-off-by: Damian Kos <[email protected]> Signed-off-by: Heiko Stuebner <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2018-06-16drm/rockchip: cnd-dp: adjust spdif register settingLin Huang1-15/+1
We use jitter bypass mode for spdif, so do not need to set jitter mode related bit in SPDIF_CTRL_ADDR register. But of course we need to keep the SPDIF_ENABLE bit. Signed-off-by: Chris Zhong <[email protected]> Signed-off-by: Lin Huang <[email protected]> Signed-off-by: Heiko Stuebner <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/[email protected]
2017-09-18drm/rockchip: Replace dev_* with DRM_DEV_*Haneen Mohammed1-1/+1
This patch replace instances of dev_info/err/debug with DRM_DEV_INFO/ERROR/WARN respectively inorder to use a drm-formatted specific log messages. Issue corrected with the help of the following Coccinelle script: @r@ @@ ( -dev_info +DRM_DEV_INFO | -dev_err +DRM_DEV_ERROR | -dev_dbg +DRM_DEV_DEBUG ) Signed-off-by: Haneen Mohammed <[email protected]> Signed-off-by: Mark Yao <[email protected]> Link: https://patchwork.freedesktop.org/patch/msgid/20170915083603.GA18992@Haneen
2017-03-13drm/rockchip: cdn-dp: add more log for video configChris Zhong1-0/+4
In order to analyze some video config failed, add some useful printouts. Signed-off-by: Chris Zhong <[email protected]> Signed-off-by: Sean Paul <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
2017-03-13drm/rockchip: cdn-dp: return error code when clk_get_rate failedChris Zhong1-1/+1
The clk_get_rate return 0 if something goes wrong, so it can never be less then zero, the ret should be set a error code, otherwise the cdn_dp_clk_enable will return 0 when it failed at clk_get_rate. In addition, clk_get_rate() returns an "unsigned long", so use "unsigned long" instead of "u32" is better. Signed-off-by: Chris Zhong <[email protected]> Signed-off-by: Sean Paul <[email protected]> Link: http://patchwork.freedesktop.org/patch/msgid/[email protected]
2017-02-07drm/rockchip: cdn-dp: fix cdn-dp complie warningMark Yao1-1/+1
fix warning: drivers/gpu/drm/rockchip/cdn-dp-reg.c:632:24: warning: 'val[1]' may be used uninitialized in this function [-Wmaybe-uninitialized] msa_misc = 2 * val[0] + 32 * val[1] + Signed-off-by: Mark Yao <[email protected]>
2017-02-05drm/rockchip: cdn-dp: add cdn DP support for rk3399Chris Zhong1-0/+979
Add support for cdn DP controller which is embedded in the rk3399 SoCs. The DP is compliant with DisplayPort Specification, Version 1.3, This IP is compatible with the rockchip type-c PHY IP. There is a uCPU in DP controller, it need a firmware to work, please put the firmware file to /lib/firmware/rockchip/dptx.bin. The uCPU in charge of aux communication and link training, the host use mailbox to communicate with the ucpu. The dclk pin_pol of vop must not be invert for DP. Signed-off-by: Chris Zhong <[email protected]> [seanpaul fixed up some races between the worker and modeset] [seanpaul squashed ~15 commits from chromium.org gerrit] Signed-off-by: Sean Paul <[email protected]> [groeck fixed compilation errors when building as module] Signed-off-by: Guenter Roeck <[email protected]>
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