kernel.git/drivers/gpu/drm/mediatek, branch linux-5.12.y

drm/mediatek: Fix PM reference leak in mtk_crtc_ddp_hw_init()

2021-07-19T08:00:45Z

[ Upstream commit 69777e6ca396f0a7e1baff40fcad4a9d3d445b7a ] 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: Wang Li Signed-off-by: Chun-Kuang Hu Signed-off-by: Sasha Levin

drm/mediatek: Don't support hdmi connector creation

2021-05-14T08:52:38Z

[ Upstream commit 2e477391522354e763aa62ee3e281c1ad9e8eb1b ] commit f01195148967 ("drm/mediatek: mtk_dpi: Create connector for bridges") broke the display support for elm device since mtk_dpi calls drm_bridge_attach with the flag DRM_BRIDGE_ATTACH_NO_CONNECTOR while mtk_hdmi does not yet support this flag. Fix this by accepting DRM_BRIDGE_ATTACH_NO_CONNECTOR in bridge attachment. Implement the drm_bridge_funcs .detect() and .get_edid() operations, and call drm_bridge_hpd_notify() to report HPD. This provides the necessary API to support disabling connector creation. In addition, the field 'conn' is removed from the mtk_hdmi struct since mtk_hdmi don't create a connector. It is replaced with a pointer 'curr_conn' that points to the current connector which can be access through the global state. This patch is inspired by a similar patch for bridge/synopsys/dw-hdmi.c: commit ec971aaa6775 ("drm: bridge: dw-hdmi: Make connector creation optional") But with the difference that in mtk-hdmi only the option of not creating a connector is supported. Fixes: f01195148967 ("drm/mediatek: mtk_dpi: Create connector for bridges") Signed-off-by: Dafna Hirschfeld Reviewed-by: Laurent Pinchart Signed-off-by: Chun-Kuang Hu Signed-off-by: Sasha Levin

drm/mediatek: Switch the hdmi bridge ops to the atomic versions

2021-05-14T08:52:38Z

[ Upstream commit 053d231f369ca05cd563ca9738b5a4c73908e697 ] The bridge operation '.enable' and the audio cb '.get_eld' access hdmi->conn. In the future we will want to support the flag DRM_BRIDGE_ATTACH_NO_CONNECTOR and then we will not have direct access to the connector. The atomic version '.atomic_enable' allows accessing the current connector from the state. This patch switches the bridge to the atomic version to prepare access to the connector in later patches. Signed-off-by: Dafna Hirschfeld Reviewed-by: Laurent Pinchart Signed-off-by: Chun-Kuang Hu Signed-off-by: Sasha Levin

Merge tag 'mediatek-drm-next-5.12' of https://git.kernel.org/pub/scm/linux/kernel/git/chunkuang.hu/linux into drm-next

2021-02-04T23:25:26Z

Mediatek DRM Next for Linux 5.12 1. Decouple Mediatek DRM sub driver 2. Share mtk mutex driver for both DRM and MDP 3. Add support for SoC MT8183 Signed-off-by: Dave Airlie From: Chun-Kuang Hu Link: https://patchwork.freedesktop.org/patch/msgid/20210204151750.7550-1-chunkuang.hu@kernel.org

drm/mediatek: Add matrix_bits private data for ccorr

2021-02-04T14:55:46Z

Add matrix_bits and coeffs_precision to ccorr private data: - matrix bits of mt8183 is 10 - matrix bits of mt8192 is 11 Signed-off-by: Yongqiang Niu Signed-off-by: Hsin-Yi Wang Reviewed-by: CK Hu Signed-off-by: Chun-Kuang Hu

drm/mediatek: Fix ccorr size config

2021-02-04T14:55:46Z

Fix setting to follow hardware datasheet. The original error setting affects mt8192 display. Signed-off-by: Yongqiang Niu Signed-off-by: Hsin-Yi Wang Reviewed-by: CK Hu Signed-off-by: Chun-Kuang Hu

drm/mediatek: Separate ccorr module

2021-02-04T14:55:46Z

ccorr ctm matrix bits will be different in mt8192. Signed-off-by: Yongqiang Niu Signed-off-by: Hsin-Yi Wang Reviewed-by: CK Hu Signed-off-by: Chun-Kuang Hu

drm/mediatek: Enable dither function

2021-02-04T14:55:46Z

Enable dither function to improve the display quality. Signed-off-by: Yongqiang Niu Signed-off-by: Hsin-Yi Wang Signed-off-by: Chun-Kuang Hu

drm/mediatek: Enable OVL_LAYER_SMI_ID_EN for multi-layer usecase

2021-02-04T14:55:46Z

Enable OVL_LAYER_SMI_ID_EN for multi-layer usecase, without this patch, ovl will hang up when more than 1 layer enabled. Signed-off-by: Yongqiang Niu Signed-off-by: Hsin-Yi Wang Reviewed-by: CK Hu Signed-off-by: Chun-Kuang Hu

drm/mediatek: Add support for SoC MT8183

2021-02-04T14:55:46Z

1. Add ovl private data 2. Add rdma private data 3. Add gamma privte data 4. Add main and external path module for crtc create Signed-off-by: Yongqiang Niu Signed-off-by: Hsin-Yi Wang Reviewed-by: CK Hu Signed-off-by: Chun-Kuang Hu