linux/drivers/gpu/drm/mediatek, branch v5.3

drm/mediatek: include dma-mapping header

2019-08-24T05:09:20Z

Although it builds fine here in my arm cross compile, it seems either via some other patches in -next or some Kconfig combination, this fails to build for everyone. Include linux/dma-mapping.h should fix it. Signed-off-by: Dave Airlie

drm/mediatek: mtk_drm_drv.c: Add of_node_put() before goto

2019-08-18T23:09:29Z

Each iteration of for_each_child_of_node puts the previous node, but in the case of a goto from the middle of the loop, there is no put, thus causing a memory leak. Hence add an of_node_put before the goto in two places. Issue found with Coccinelle. Fixes: 119f5173628a (drm/mediatek: Add DRM Driver for Mediatek SoC MT8173) Signed-off-by: Nishka Dasgupta Signed-off-by: CK Hu

drm/mediatek: set DMA max segment size

2019-08-14T23:43:46Z

This driver requires imported PRIME buffers to appear contiguously in its IO address space. Make sure this is the case by setting the maximum DMA segment size to a more suitable value than the default 64KB. Signed-off-by: Alexandre Courbot Reviewed-by: Tomasz Figa Signed-off-by: CK Hu

drm/mediatek: use correct device to import PRIME buffers

2019-08-14T23:43:45Z

PRIME buffers should be imported using the DMA device. To this end, use a custom import function that mimics drm_gem_prime_import_dev(), but passes the correct device. Fixes: 119f5173628aa ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.") Signed-off-by: Alexandre Courbot Signed-off-by: CK Hu

Merge v5.2-rc5 into drm-next

2019-06-19T10:07:29Z

Maarten needs -rc4 backmerged so he can pull in the fbcon notifier removal topic branch into drm-misc-next. Signed-off-by: Daniel Vetter

Merge branch 'mediatek-drm-fixes-5.2' of https://github.com/ckhu-mediatek/linux.git-tags into drm-fixes

2019-06-12T16:22:28Z

CK writes: This include unbind error fix, clock control flow refinement, and PRIME mmap with page offset. Signed-off-by: Daniel Vetter From: CK Hu Link: https://patchwork.freedesktop.org/patch/msgid/1560325868.3259.6.camel@mtksdaap41

drm/mediatek: call mtk_dsi_stop() after mtk_drm_crtc_atomic_disable()

2019-06-04T01:54:42Z

mtk_dsi_stop() should be called after mtk_drm_crtc_atomic_disable(), which needs ovl irq for drm_crtc_wait_one_vblank(), since after mtk_dsi_stop() is called, ovl irq will be disabled. If drm_crtc_wait_one_vblank() is called after last irq, it will timeout with this message: "vblank wait timed out on crtc 0". This happens sometimes when turning off the screen. In drm_atomic_helper.c#disable_outputs(), the calling sequence when turning off the screen is: 1. mtk_dsi_encoder_disable() --> mtk_output_dsi_disable() --> mtk_dsi_stop(); /* sometimes make vblank timeout in atomic_disable */ --> mtk_dsi_poweroff(); 2. mtk_drm_crtc_atomic_disable() --> drm_crtc_wait_one_vblank(); ... --> mtk_dsi_ddp_stop() --> mtk_dsi_poweroff(); mtk_dsi_poweroff() has reference count design, change to make mtk_dsi_stop() called in mtk_dsi_poweroff() when refcount is 0. Fixes: 0707632b5bac ("drm/mediatek: update DSI sub driver flow for sending commands to panel") Signed-off-by: Hsin-Yi Wang Signed-off-by: CK Hu

drm/mediatek: clear num_pipes when unbind driver

2019-06-04T01:29:22Z

num_pipes is used for mutex created in mtk_drm_crtc_create(). If we don't clear num_pipes count, when rebinding driver, the count will be accumulated. From mtk_disp_mutex_get(), there can only be at most 10 mutex id. Clear this number so it starts from 0 in every rebind. Fixes: 119f5173628a ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.") Signed-off-by: Hsin-Yi Wang Signed-off-by: CK Hu

drm/mediatek: call drm_atomic_helper_shutdown() when unbinding driver

2019-06-04T01:28:59Z

shutdown all CRTC when unbinding drm driver. Fixes: 119f5173628a ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.") Signed-off-by: Hsin-Yi Wang Signed-off-by: CK Hu

drm/mediatek: unbind components in mtk_drm_unbind()

2019-06-04T01:28:35Z

Unbinding components (i.e. mtk_dsi and mtk_disp_ovl/rdma/color) will trigger master(mtk_drm)'s .unbind(), and currently mtk_drm's unbind won't actually unbind components. During the next bind, mtk_drm_kms_init() is called, and the components are added back. .unbind() should call mtk_drm_kms_deinit() to unbind components. And since component_master_del() in .remove() will trigger .unbind(), which will also unregister device, it's fine to remove original functions called here. Fixes: 119f5173628a ("drm/mediatek: Add DRM Driver for Mediatek SoC MT8173.") Signed-off-by: Hsin-Yi Wang Signed-off-by: CK Hu