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2021-01-07Merge tag 'du-next-20210105' of git://linuxtv.org/pinchartl/media into drm-nextDaniel Vetter1-1/+1
- Add default modes for connectors in unknown state - R-Car DU conversion to DRM-managed API - R-Car DU miscellaneous fixes - Miscellaneous bridge and bridge bindings fixes - Assorted misc driver cleanups - Constify drm_driver for PCI devices Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> From: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Link: https://patchwork.freedesktop.org/patch/msgid/X/P8IOrVXkTpLeCm@pendragon.ideasonboard.com
2021-01-05drm: Constify drm_driver in drivers that don't modify itLaurent Pinchart1-1/+1
A non-const structure containing function pointers is a possible attack vector. The drm_driver structure is already const in most drivers, but there are a few exceptions. Constify the structure in the drivers that don't need to modify at, as a low-hanging fruit. The rest of the drivers will need a more complex fix. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2020-12-15Merge drm/drm-next into drm-misc-nextMaarten Lankhorst1-1/+1
Required backmerge since we will be based on top of v5.11, and there has been a request to backmerge already to upstream some features. Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
2020-12-05drm/kmb: fix array bounds warningArnd Bergmann1-0/+3
gcc warns about an out-of-bounds access when the using nonzero values for 'plane_id' on kmb->plane_status: drivers/gpu/drm/kmb/kmb_plane.c: In function 'kmb_plane_atomic_disable': drivers/gpu/drm/kmb/kmb_plane.c:128:20: warning: array subscript 3 is above array bounds of 'struct layer_status[1]' [-Warray-bounds] 128 | kmb->plane_status[plane_id].ctrl = LCD_CTRL_GL2_ENABLE; | ~~~~~~~~~~~~~~~~~^~~~~~~~~~ drivers/gpu/drm/kmb/kmb_plane.c:125:20: warning: array subscript 2 is above array bounds of 'struct layer_status[1]' [-Warray-bounds] 125 | kmb->plane_status[plane_id].ctrl = LCD_CTRL_GL1_ENABLE; | ~~~~~~~~~~~~~~~~~^~~~~~~~~~ drivers/gpu/drm/kmb/kmb_plane.c:122:20: warning: array subscript 1 is above array bounds of 'struct layer_status[1]' [-Warray-bounds] 122 | kmb->plane_status[plane_id].ctrl = LCD_CTRL_VL2_ENABLE; Having the array truncated to one entry seems intentional, so add a range check before indexing it to make it clearer what is going on and shut up the warning. I received the warning from the kernel test robot after a private patch that turns on Warray-bounds unconditionally. Fixes: 7f7b96a8a0a1 ("drm/kmb: Add support for KeemBay Display") Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Anitha Chrisanthus <anitha.chrisanthus@intel.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20201129200927.1854104-1-arnd@kernel.org
2020-11-29drm/kmb: Remove an unnecessary NULL checkDan Carpenter1-1/+1
The NULL checking isn't done consistently in this function and it leads to a static checker warning: drivers/gpu/drm/kmb/kmb_drv.c:561 kmb_pm_suspend() error: we previously assumed 'drm' could be null (see line 559) Fortunately "drm" cannot be NULL at this point so the check can just be removed. Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com> Reviewed-by: Anitha Chrisanthus <anitha.chrisanthus@intel.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20201117072137.GB1111239@mwanda
2020-11-13drm/Kconfig: rename keembay configDave Airlie1-1/+1
This all caps looked ugly. Signed-off-by: Dave Airlie <airlied@redhat.com>
2020-11-11drm/kmb: fix spelling mistakes in drm_info and drm_dbg messagesColin Ian King1-2/+2
There are two spelling mistakes of the word sync in drm_info and drm_dbg messages. Fix these. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20201109111225.1485190-1-colin.king@canonical.com
2020-11-11drm/kmb: Fix build warningsAnitha Chrisanthus2-32/+32
Fixed the following W=1 kernel build warnings drivers/gpu/drm/kmb/kmb_plane.h:74:18: warning: ‘kmb_formats_v’ defined but not used [-Wunused-const-variable=] drivers/gpu/drm/kmb/kmb_plane.h:61:18: warning: ‘kmb_formats_g’ defined but not used [-Wunused-const-variable=] Signed-off-by: Anitha Chrisanthus <anitha.chrisanthus@intel.com> Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/1605045169-2696-1-git-send-email-anitha.chrisanthus@intel.com
2020-11-10drm: DRM_KMB_DISPLAY should depend on ARCH_KEEMBAYGeert Uytterhoeven1-2/+2
The Intel Keem Bay display controller is only present on Intel Keem Bay SoCs. Hence add a dependency on ARCH_KEEMBAY, to prevent asking the user about this driver when configuring a kernel without Intel Keem Bay platform support. Note that: 1. The dependency on ARM is dropped, as Keem Bay SoCs are only supported in arm64 kernel builds, 2. The dependencies on OF and COMMON_CLK can be dropped for compile-testing, as the driver builds fine regardless. Fixes: ed794057b052b52a ("drm/kmb: Build files for KeemBay Display driver") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20201110144350.3279147-1-geert+renesas@glider.be
2020-11-10drm: DRM_KMB_DISPLAY should select DRM_MIPI_DSIGeert Uytterhoeven1-0/+1
If CONFIG_DRM_MIPI_DSI=n: aarch64-linux-gnu-ld: drivers/gpu/drm/kmb/kmb_dsi.o: in function `kmb_dsi_host_unregister': kmb_dsi.c:(.text+0xa48): undefined reference to `mipi_dsi_host_unregister' aarch64-linux-gnu-ld: drivers/gpu/drm/kmb/kmb_dsi.o: in function `kmb_dsi_host_bridge_init': kmb_dsi.c:(.text+0xb14): undefined reference to `mipi_dsi_host_register' Fix this be selecting DRM_MIPI_DSI, like other drivers do. Fixes: ed794057b052b52a ("drm/kmb: Build files for KeemBay Display driver") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20201110144219.3278831-1-geert+renesas@glider.be
2020-11-05drm/kmb: Build files for KeemBay Display driverAnitha Chrisanthus2-0/+14
v2: Added Maintainer entry v3: Added one more Maintainer entry v3: drop videomode_helpers Cc: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Anitha Chrisanthus <anitha.chrisanthus@intel.com> Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/1604538931-26726-8-git-send-email-anitha.chrisanthus@intel.com
2020-11-05drm/kmb: Mipi DSI part of the display driverAnitha Chrisanthus2-0/+1948
Initializes Mipi DSI and sets up connects to ADV bridge v2: removed license text upclassed dev_private, removed HAVE_IRQ. (Sam) v3: Squashed all 59 commits to one v4: review changes from Sam Ravnborg renamed dev_p to kmb v5: corrected spellings v6: corrected checkpatch warnings v7: review changes Sam Ravnborg and Thomas Zimmerman removed unnecessary logs and defines and ifdef codes (Sam) split dphy_init_sequence smaller (Sam) removed redundant checks in kmb_dsi (Sam) changed kmb_dsi_init to drm_bridge_connector_init and drm_connector_attach_encoder to bridge's connector (Sam) v8: call drm_bridge_attach with DRM_BRIDGE_ATTACH_NO_CONNECTOR v9: renamed kmb_dsi_hw_init to kmb_dsi_mode_set (Daniel V) v10: changes in driver to accommodate changes in DT to separate DSI entries (Sam R) added comments to clarify empty dsi host functions review changes from Sam to separate out DSI part, removed dependencies on drm side (Sam R) v11: review changes for separate msscam node (Sam R, Neil A) v12: fixed warnings Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Anitha Chrisanthus <anitha.chrisanthus@intel.com> Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: Daniel Vetter <daniel@ffwll.ch> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/1604538931-26726-7-git-send-email-anitha.chrisanthus@intel.com
2020-11-05drm/kmb: Add support for KeemBay DisplayAnitha Chrisanthus5-0/+1493
This is a basic KMS atomic modesetting display driver for KeemBay family of SOCs. Driver has no 2D or 3D graphics. It calls into the ADV bridge driver at the connector level. Single CRTC with LCD controller->mipi DSI->ADV bridge Only 1080p resolution and single plane is supported at this time. v2: moved extern to .h, removed license text use drm_dev_init, upclassed dev_private, removed HAVE_IRQ.(Sam) v3: Squashed all 59 commits to one v4: review changes from Sam Ravnborg renamed dev_p to kmb moved clocks under kmb_clock, consolidated clk initializations use drmm functions use DRM_GEM_CMA_DRIVER_OPS_VMAP v5: corrected spellings v6: corrected checkpatch warnings v7: review changes Sam Ravnborg and Thomas Zimmerman removed kmb_crtc.h kmb_crtc_cleanup (Thomas) renamed mode_set, kmb_load, inlined unload (Thomas) moved remaining logging to drm_*(Thomas) re-orged driver initialization (Thomas) moved plane_status to drm_private (Sam) removed unnecessary logs and defines and ifdef codes (Sam) call helper_check in plane_atomic_check (Sam) renamed set to get for bpp and format functions(Sam) use drm helper functions for reset, duplicate/destroy state instead of kmb functions (Sam) removed kmb_priv from kmb_plane and removed kmb_plane_state (Sam) v8: get clk_pll0 from display node in dt v9: moved csc_coef_lcd to plane.c (Daniel Vetter) call drm_atomic_helper_shutdown in remove (Daniel V) use drm_crtc_handle_vblank (Daniel V) renamed kmb_dsi_hw_init to kmb_dsi_mode_set (Daniel V) complimentary changes to device tree changes (Rob) v10: call drm_crtc_arm_vblank_event in atomic_flush (Daniel V) moved global vars to kmb_private and added locks (Daniel V) changes in driver to accommodate changes in DT to separate DSI entries (Sam R) review changes to separate mipi DSI (Sam R) v11: review changes to separate msscam (Neil A,Sam R) v12: fixed warnings Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Anitha Chrisanthus <anitha.chrisanthus@intel.com> Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: Daniel Vetter <daniel@ffwll.ch> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/1604538931-26726-6-git-send-email-anitha.chrisanthus@intel.com
2020-11-05drm/kmb: Keem Bay driver register definitionAnitha Chrisanthus1-0/+725
Register definitions for Keem Bay display driver v2: removed license text (Sam) v3: Squashed all 59 commits to one v4: review changes from Sam Ravnborg renamed dev_p to kmb v5: corrected spellings v6: corrected checkpatch warnings v7: removed redundant definitions v8: removed redundant definitions, clean up (Sam R) Signed-off-by: Anitha Chrisanthus <anitha.chrisanthus@intel.com> Reviewed-by: Sam Ravnborg <sam@ravnborg.org> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: Daniel Vetter <daniel@ffwll.ch> Signed-off-by: Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/1604538931-26726-5-git-send-email-anitha.chrisanthus@intel.com