kernel/linux.git/drivers/gpu/drm/imx/dcss, branch v5.10.263

drm/imx: Fix three kernel-doc warnings in dcss-scaler.c

2026-06-19T11:21:34+00:00

[ Upstream commit ae0383e5a9a4b12d68c76c4769857def4665deff ] Fix the following W=1 kerneldoc warnings by adding the missing parameter descriptions for @phase0_identity and @nn_interpolation in dcss_scaler_filter_design() and @phase0_identity in dcss_scaler_gaussian_filter() Warning: drivers/gpu/drm/imx/dcss/dcss-scaler.c:173 function parameter 'phase0_identity' not described in 'dcss_scaler_gaussian_filter' Warning: drivers/gpu/drm/imx/dcss/dcss-scaler.c:270 function parameter 'phase0_identity' not described in 'dcss_scaler_filter_design' Warning: drivers/gpu/drm/imx/dcss/dcss-scaler.c:270 function parameter 'nn_interpolation' not described in 'dcss_scaler_filter_design' Fixes: 9021c317b770 ("drm/imx: Add initial support for DCSS on iMX8MQ") Signed-off-by: Yicong Hui Reviewed-by: Laurentiu Palcu Link: https://patch.msgid.link/20260406180013.2442096-1-yiconghui@gmail.com Signed-off-by: Liu Ying Signed-off-by: Sasha Levin

drm/imx/dcss: Use IRQF_NO_AUTOEN flag in request_irq()

2024-12-14T18:47:49+00:00

[ Upstream commit 1af01e14db7e0b45ae502d822776a58c86688763 ] disable_irq() after request_irq() still has a time gap in which interrupts can come. request_irq() with IRQF_NO_AUTOEN flag will disable IRQ auto-enable when request IRQ. Fixes: 9021c317b770 ("drm/imx: Add initial support for DCSS on iMX8MQ") Signed-off-by: Jinjie Ruan Reviewed-by: Laurentiu Palcu Link: https://patchwork.freedesktop.org/patch/msgid/20240912083020.3720233-2-ruanjinjie@huawei.com [DB: fixed the subject] Signed-off-by: Dmitry Baryshkov Signed-off-by: Sasha Levin

drm/imx/dcss: fix unused but set variable warnings

2022-07-29T15:19:24+00:00

[ Upstream commit 523be44c334bc4e4c014032738dc277b8909d009 ] Fix unused but set variable warning building with `make W=1`: drivers/gpu/drm/imx/dcss/dcss-plane.c:270:6: warning: variable ‘pixel_format’ set but not used [-Wunused-but-set-variable] u32 pixel_format; ^~~~~~~~~~~~ Fixes: 9021c317b770 ("drm/imx: Add initial support for DCSS on iMX8MQ") Reported-by: Hulk Robot Signed-off-by: Wang ShaoBo Reviewed-by: Laurentiu Palcu Signed-off-by: Lucas Stach Link: https://patchwork.freedesktop.org/patch/msgid/20200911014414.4663-1-bobo.shaobowang@huawei.com Signed-off-by: Sasha Levin

drm/imx/dcss: Add missing of_node_put() in fail path

2022-07-29T15:19:20+00:00

[ Upstream commit 02c87df2480ac855d88ee308ce3fa857d9bd55a8 ] In dcss_dev_create() and dcss_dev_destroy(), we should call of_node_put() in fail path or before the dcss's destroy as of_graph_get_port_by_id() has increased the refcount. Fixes: 9021c317b770 ("drm/imx: Add initial support for DCSS on iMX8MQ") Signed-off-by: Liang He Reviewed-by: Laurentiu Palcu Signed-off-by: Laurentiu Palcu Link: https://patchwork.freedesktop.org/patch/msgid/20220714081337.374761-1-windhl@126.com Signed-off-by: Sasha Levin

drm/imx/dcss: fix rotations for Vivante tiled formats

2020-12-30T10:53:22+00:00

[ Upstream commit 59cb403f38099506ddbe05fd09126f3f0890860b ] DCSS supports 90/180/270 degree rotations for Vivante tiled and super-tiled formats. Unfortunately, with the current code, they didn't work properly. This simple patch makes the rotations work by fixing the way the scaler is set up for 90/270 degree rotations. In this particular case, the source width and height need to be swapped since DPR is sending the buffer to scaler already rotated. Also, make sure to allow full rotations for DRM_FORMAT_MOD_VIVANTE_SUPER_TILED. Fixes: 9021c317b770 ("drm/imx: Add initial support for DCSS on iMX8MQ") Signed-off-by: Laurentiu Palcu Reviewed-by: Lucas Stach Signed-off-by: Lucas Stach Link: https://patchwork.freedesktop.org/patch/msgid/20201105140127.25249-2-laurentiu.palcu@oss.nxp.com Signed-off-by: Sasha Levin

drm/imx/dcss: fix compilation issue on 32bit

2020-09-10T10:09:54+00:00

When compiling for 32bit platforms, the compilation fails with: ERROR: modpost: "__aeabi_ldivmod" [drivers/gpu/drm/imx/dcss/imx-dcss.ko] undefined! ERROR: modpost: "__aeabi_uldivmod" [drivers/gpu/drm/imx/dcss/imx-dcss.ko] undefined! This patch adds a dependency on ARM64 since no 32bit SoCs have DCSS, so far. Signed-off-by: Laurentiu Palcu Reported-by: Daniel Vetter Reviewed-by: Daniel Vetter Signed-off-by: Lucas Stach Link: https://patchwork.freedesktop.org/patch/msgid/20200910095250.7663-1-laurentiu.palcu@oss.nxp.com

drm/imx/dcss: use drm_bridge_connector API

2020-09-09T14:39:49+00:00

Make use of drm_bridge_connector API to have the connector initialized by the display controller. Signed-off-by: Laurentiu Palcu Signed-off-by: Lucas Stach Link: https://patchwork.freedesktop.org/patch/msgid/20200731081836.3048-4-laurentiu.palcu@oss.nxp.com

drm/imx: Add initial support for DCSS on iMX8MQ

2020-09-09T14:39:48+00:00

This adds initial support for iMX8MQ's Display Controller Subsystem (DCSS). Some of its capabilities include: * 4K@60fps; * HDR10; * one graphics and 2 video pipelines; * on-the-fly decompression of compressed video and graphics; The reference manual can be found here: https://www.nxp.com/webapp/Download?colCode=IMX8MDQLQRM The current patch adds only basic functionality: one primary plane for graphics, linear, tiled and super-tiled buffers support (no graphics decompression yet), no HDR10 and no video planes. Video planes support and HDR10 will be added in subsequent patches once per-plane de-gamma/CSC/gamma support is in. Signed-off-by: Laurentiu Palcu Reviewed-by: Lucas Stach Acked-by: Guido Günther Signed-off-by: Lucas Stach Link: https://patchwork.freedesktop.org/patch/msgid/20200731081836.3048-3-laurentiu.palcu@oss.nxp.com