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mirror-linux/drivers/gpu/drm
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Uwe Kleine-König 547cc8dae2 pwm: Make .get_state() callback return an error code 
[ Upstream commit 6c452cff79 ]

.get_state() might fail in some cases. To make it possible that a driver
signals such a failure change the prototype of .get_state() to return an
error code.

This patch was created using coccinelle and the following semantic patch:

@p1@
identifier getstatefunc;
identifier driver;
@@
 struct pwm_ops driver = {
        ...,
        .get_state = getstatefunc
        ,...
 };

@p2@
identifier p1.getstatefunc;
identifier chip, pwm, state;
@@
-void
+int
 getstatefunc(struct pwm_chip *chip, struct pwm_device *pwm, struct pwm_state *state)
 {
   ...
-  return;
+  return 0;
   ...
 }

plus the actual change of the prototype in include/linux/pwm.h (plus some
manual fixing of indentions and empty lines).

So for now all drivers return success unconditionally. They are adapted
in the following patches to make the changes easier reviewable.

Reviewed-by: Heiko Stuebner <heiko@sntech.de>
Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Reviewed-by: Tzung-Bi Shih <tzungbi@kernel.org>
Reviewed-by: Neil Armstrong <neil.armstrong@linaro.org>
Reviewed-by: Nobuhiro Iwamatsu <nobuhiro1.iwamatsu@toshiba.co.jp>
Reviewed-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
Acked-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Acked-by: Pavel Machek <pavel@ucw.cz>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20221130152148.2769768-2-u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Stable-dep-of: 6f57937980 ("pwm: hibvt: Explicitly set .polarity in .get_state()")
Signed-off-by: Sasha Levin <sashal@kernel.org>
 		2023-04-13 16:55:18 +02:00
..
amd drm/amdkfd: Get prange->offset after svm_range_vram_node_new 2023-04-06 12:10:58 +02:00
arm drm/gem: rename struct drm_gem_dma_object.{paddr => dma_addr} 2022-08-03 18:32:27 +02:00
armada drm/gem: rename GEM CMA helpers to GEM DMA helpers 2022-08-03 18:31:49 +02:00
aspeed drm/gem: rename struct drm_gem_dma_object.{paddr => dma_addr} 2022-08-03 18:32:27 +02:00
ast drm/ast: make ast_modeset static 2022-09-26 09:11:47 +02:00
atmel-hlcdc drm/gem: rename struct drm_gem_dma_object.{paddr => dma_addr} 2022-08-03 18:32:27 +02:00
bridge pwm: Make .get_state() callback return an error code 2023-04-13 16:55:18 +02:00
display drm/display: Don't block HDR_OUTPUT_METADATA on unknown EOTF 2023-03-17 08:50:15 +01:00
etnaviv drm/etnaviv: fix reference leak when mmaping imported buffer 2023-04-06 12:10:55 +02:00
exynos drm: exynos: dsi: Fix MIPI_DSI*_NO_* mode flags 2023-03-10 09:33:14 +01:00
fsl-dcu drm/fsl-dcu: Fix return type of fsl_dcu_drm_connector_mode_valid() 2022-12-31 13:33:06 +01:00
gma500 drm pull for 6.1-rc1 2022-10-05 11:24:12 -07:00
gud drm/gud: Fix UBSAN warning 2023-03-10 09:34:33 +01:00
hisilicon drm pull for 6.1-rc1 2022-10-05 11:24:12 -07:00
hyperv hyperv-next for 6.1 2022-10-10 13:59:01 -07:00
i2c i2c: Make remove callback return void 2022-08-16 12:46:26 +02:00
i810
…
i915 drm/i915: Move CSC load back into .color_commit_arm() when PSR is enabled on skl/glk 2023-04-06 12:10:56 +02:00
imx drm/imx: ipuv3-plane: Fix overlay plane width 2023-01-12 12:02:27 +01:00
ingenic drm/ingenic: Fix missing platform_driver_unregister() call in ingenic_drm_init() 2023-01-07 11:11:57 +01:00
kmb drm/gem: rename GEM CMA helpers to GEM DMA helpers 2022-08-03 18:31:49 +02:00
lib
…
lima drm/lima: Fix opp clkname setting in case of missing regulator 2022-11-14 19:08:21 +08:00
logicvc drm/gem: rename GEM CMA helpers to GEM DMA helpers 2022-08-03 18:31:49 +02:00
mcde drm/gem: rename GEM CMA helpers to GEM DMA helpers 2022-08-03 18:31:49 +02:00
mediatek drm/mediatek: Clean dangling pointer on bind error path 2023-03-10 09:33:17 +01:00
meson drm/meson: fix missing component unbind on bind errors 2023-03-30 12:49:27 +02:00
mga
…
mgag200 drm/mgag200: Fix PLL setup for G200_SE_A rev >=4 2023-01-07 11:11:57 +01:00
msm drm/msm/disp/dpu: fix sc7280_pp base offset 2023-04-06 12:10:36 +02:00
mxsfb drm: mxsfb: DRM_MXSFB should depend on ARCH_MXS || ARCH_MXC 2023-03-10 09:33:09 +01:00
nouveau drm/nouveau/kms/nv50: fix nv50_wndw_new_ prototype 2023-03-17 08:50:21 +01:00
omapdrm drm/omap: dsi: Fix excessive stack usage 2023-03-10 09:33:55 +01:00
panel drm: exynos: dsi: Fix MIPI_DSI*_NO_* mode flags 2023-03-10 09:33:14 +01:00
panfrost drm/panfrost: Don't sync rpm suspension after mmu flushing 2023-03-22 13:33:39 +01:00
pl111 drm:pl111: Add of_node_put() when breaking out of for_each_available_child_of_node() 2022-08-11 18:13:31 +02:00
qxl drm/qxl: drop set_prod_notify parameter from qxl_ring_create 2022-09-23 13:16:37 +02:00
r128
…
radeon drm/radeon: Fix eDP for single-display iMac11,2 2023-03-10 09:34:33 +01:00
rcar-du drm: rcar-du: Fix setting a reserved bit in DPLLCR 2023-03-10 09:33:57 +01:00
rockchip drm/rockchip: Use drm_mode_copy() 2022-12-31 13:33:01 +01:00
savage
…
scheduler drm/scheduler: fix fence ref counting 2022-10-25 13:14:36 +02:00
shmobile drm/plane: Remove drm_plane_init() 2022-09-20 09:37:12 +02:00
sis drm/sis: use idr_init_base() to initialize dev_priv->object_idr 2022-07-28 15:35:56 +01:00
solomon drm/ssd130x: Init display before the SSD130X_DISPLAY_ON command 2023-02-09 11:28:02 +01:00
sprd drm/gem: rename struct drm_gem_dma_object.{paddr => dma_addr} 2022-08-03 18:32:27 +02:00
sti drm/sti: Fix return type of sti_{dvo,hda,hdmi}_connector_mode_valid() 2022-12-31 13:33:06 +01:00
stm drm/gem: rename GEM CMA helpers to GEM DMA helpers 2022-08-03 18:31:49 +02:00
sun4i drm/sun4i: fix missing component unbind on bind errors 2023-03-22 13:34:00 +01:00
tdfx
…
tegra drm/tegra: firewall: Check for is_addr_reg existence in IMM check 2023-03-10 09:33:16 +01:00
tests drm: tests: Fix a buffer overflow in format_helper_test 2022-10-20 09:56:05 +02:00
tidss drm: tidss: Fix pixel format definition 2023-03-10 09:33:09 +01:00
tilcdc drm/plane: Remove drm_plane_init() 2022-09-20 09:37:12 +02:00
tiny drm/cirrus: NULL-check pipe->plane.state->fb in cirrus_pipe_update() 2023-03-30 12:49:16 +02:00
ttm drm/ttm: Fix a NULL pointer dereference 2023-03-22 13:33:56 +01:00
tve200 drm/tve200: Fix smatch warning 2022-08-26 14:22:59 +02:00
udl drm/udl: Sync pending URBs at the end of suspend 2022-09-10 21:45:53 +02:00
v3d drm/gem: rename GEM CMA helpers to GEM DMA helpers 2022-08-03 18:31:49 +02:00
vboxvideo drm/vboxvideo: fix repeated words in comments 2022-09-17 15:01:24 +02:00
vc4 drm/vc4: hdmi: Correct interlaced timings again 2023-03-10 09:33:11 +01:00
vgem
…
via drm/via: Add new condition to via_dma_cleanup() 2022-09-07 07:01:16 +02:00
virtio drm/virtio: Pass correct device to dma_sync_sgtable_for_device() 2023-03-22 13:33:39 +01:00
vkms drm/vkms: Fix null-ptr-deref in vkms_release() 2023-03-10 09:33:09 +01:00
vmwgfx drm/vmwgfx: Do not drop the reference to the handle too soon 2023-02-22 12:59:47 +01:00
xen Linux 5.19-rc6 2022-07-13 10:54:56 +10:00
xlnx drm/gem: rename struct drm_gem_dma_object.{paddr => dma_addr} 2022-08-03 18:32:27 +02:00
Kconfig drm: Disable dynamic debug as broken 2023-02-22 12:59:46 +01:00
Makefile Driver core changes for 6.1-rc1 2022-10-07 17:04:10 -07:00
drm_agpsupport.c
…
drm_aperture.c drm/aperture: Fix some kerneldoc comments 2022-09-12 09:34:07 +02:00
drm_atomic.c drm/connector: print max_requested_bpc in state debugfs 2023-03-17 08:50:15 +01:00
drm_atomic_helper.c drm/atomic-helper: Don't allocate new plane state in CRTC check 2022-12-31 13:32:01 +01:00
drm_atomic_state_helper.c drm: Drop drm_blend.h from drm_crtc.h 2022-06-20 23:53:55 +03:00
drm_atomic_uapi.c drm: Drop drm_framebuffer.h from drm_crtc.h 2022-06-20 23:53:55 +03:00
drm_auth.c drm: use idr_init_base() to initialize master->lessee_idr 2022-07-28 15:35:55 +01:00
drm_blend.c drm/doc: Fix comment typo 2022-06-28 07:56:32 +02:00
drm_bridge.c drm/bridge: Avoid uninitialized variable warning 2022-07-08 13:41:28 +02:00
drm_bridge_connector.c drm: Config orientation property if panel provides it 2022-06-21 08:52:59 -07:00
drm_buddy.c drm: Optimize drm buddy top-down allocation method 2023-01-18 11:58:13 +01:00
drm_bufs.c
…
drm_cache.c
…
drm_client.c drm/client: Use actual bpp when allocating frame buffers 2022-07-09 15:00:52 +02:00
drm_client_modeset.c drm: Drop drm_edid.h from drm_crtc.h 2022-06-20 23:53:55 +03:00
drm_color_mgmt.c drm: fix whitespace in drm_plane_create_color_properties() 2022-08-04 15:24:46 +02:00
drm_connector.c drm/connector: send hotplug uevent on connector cleanup 2023-01-07 11:11:56 +01:00
drm_context.c
…
drm_crtc.c drm/crtc: Introduce drmm_crtc_init_with_planes 2022-07-13 10:46:05 +02:00
drm_crtc_helper.c Driver core changes for 6.1-rc1 2022-10-07 17:04:10 -07:00
drm_crtc_helper_internal.h
…
drm_crtc_internal.h drm/edid: abstract debugfs override EDID set/reset 2022-06-30 10:50:59 +03:00
drm_damage_helper.c drm: Use original src rect while initializing damage iterator 2022-09-13 14:38:33 +03:00
drm_debugfs.c drm/edid: Handle EDID 1.4 range descriptor h/vfreq offsets 2022-09-02 16:38:51 +03:00
drm_debugfs_crc.c
…
drm_displayid.c
…
drm_dma.c
…
drm_drv.c drm/drv: Fix potential memory leak in drm_dev_init() 2022-11-10 18:49:01 -05:00
drm_dumb_buffers.c
…
drm_edid.c drm/edid: fix parsing of 3D modes from HDMI VSDB 2023-03-10 09:34:33 +01:00
drm_edid_load.c
…
drm_encoder.c drm/encoder: Introduce drmm_encoder_init 2022-07-13 10:46:05 +02:00
drm_encoder_slave.c
…
drm_fb_dma_helper.c drm/gem: rename struct drm_gem_dma_object.{paddr => dma_addr} 2022-08-03 18:32:27 +02:00
drm_fb_helper.c drm/fb-helper: Add support for DRM_FORMAT_C[124] 2022-07-09 15:07:09 +02:00
drm_file.c drm-misc-next for v6.1: 2022-09-06 10:56:04 +02:00
drm_flip_work.c
…
drm_format_helper.c drm/format-helper: Only advertise supported formats for conversion 2022-10-31 09:50:44 +01:00
drm_fourcc.c drm/fourcc: Add missing big-endian XRGB1555 and RGB565 formats 2023-03-10 09:33:08 +01:00
drm_framebuffer.c drm/framebuffer: convert to drm_dbg_kms() 2022-09-28 10:43:30 +02:00
drm_gem.c drm/msm/gem: Prevent blocking within shrinker loop 2023-03-22 13:33:39 +01:00
drm_gem_atomic_helper.c drm: Drop drm_framebuffer.h from drm_crtc.h 2022-06-20 23:53:55 +03:00
drm_gem_dma_helper.c drm/gem: rename struct drm_gem_dma_object.{paddr => dma_addr} 2022-08-03 18:32:27 +02:00
drm_gem_framebuffer_helper.c drm/gem-fb-helper: Use actual bpp for size calculations 2022-07-09 15:08:16 +02:00
drm_gem_shmem_helper.c drm/shmem-helper: Remove another errant put in error path 2023-03-22 13:34:00 +01:00
drm_gem_ttm_helper.c drm/ttm: fix locking in vmap/vunmap TTM GEM helpers 2022-07-18 09:18:53 +02:00
drm_gem_vram_helper.c drm/ttm: rename and cleanup ttm_bo_init 2022-07-11 10:53:13 +02:00
drm_hashtab.c
…
drm_internal.h drm: Fix potential null-ptr-deref in drm_vblank_destroy_worker() 2022-11-10 18:49:02 -05:00
drm_ioc32.c
…
drm_ioctl.c drm: Prevent drm_copy_field() to attempt copying a NULL pointer 2022-07-15 10:25:36 +02:00
drm_irq.c
…
drm_kms_helper_common.c drm: Drop drm_edid.h from drm_crtc.h 2022-06-20 23:53:55 +03:00
drm_lease.c
…
drm_legacy.h
…
drm_legacy_misc.c
…
drm_lock.c
…
drm_managed.c
…
drm_memory.c
…
drm_mipi_dbi.c drm/probe-helper: Add drm_crtc_helper_mode_valid_fixed() 2022-09-12 09:14:26 +02:00
drm_mipi_dsi.c drm/mipi-dsi: Fix byte order of 16-bit DCS set/get brightness 2023-03-10 09:33:14 +01:00
drm_mm.c
…
drm_mode_config.c drm: Fix potential null-ptr-deref due to drmm_mode_config_init() 2023-03-10 09:33:08 +01:00
drm_mode_object.c
…
drm_modes.c drm: Remove linux/fb.h from drm_crtc.h 2022-07-05 21:14:02 +03:00
drm_modeset_helper.c drm/plane-helper: Provide DRM_PLANE_NON_ATOMIC_FUNCS initializer macro 2022-09-20 09:42:31 +02:00
drm_modeset_lock.c
…
drm_nomodeset.c
…
drm_of.c drm: Remove linux/media-bus-format.h from drm_crtc.h 2022-07-05 21:15:13 +03:00
drm_panel.c
…
drm_panel_orientation_quirks.c drm: panel-orientation-quirks: Add quirk for Lenovo IdeaPad Duet 3 10IGL5 2023-03-10 09:34:00 +01:00
drm_pci.c
…
drm_plane.c drm/plane: Allocate planes with drm_universal_plane_alloc() 2022-09-20 09:41:06 +02:00
drm_plane_helper.c drm/plane-helper: Warn if atomic drivers call non-atomic helpers 2022-09-20 09:42:31 +02:00
drm_prime.c drm/gem: Fix GEM handle release errors 2022-08-19 13:38:12 +02:00
drm_print.c drm_print: add _ddebug descriptor to drm_*dbg prototypes 2022-09-24 15:02:02 +02:00
drm_privacy_screen.c
…
drm_privacy_screen_x86.c
…
drm_probe_helper.c drm/probe-helper: Add drm_crtc_helper_mode_valid_fixed() 2022-09-12 09:14:26 +02:00
drm_property.c
…
drm_rect.c
…
drm_scatter.c
…
drm_self_refresh_helper.c
…
drm_simple_kms_helper.c drm/atomic-helper: Remove _HELPER_ infix from DRM_PLANE_HELPER_NO_SCALING 2022-07-26 18:42:00 +02:00
drm_syncobj.c drm/syncobj: add missing error return code in drm_syncobj_transfer_to_timeline() 2022-06-13 08:54:16 +02:00
drm_sysfs.c
…
drm_trace.h
…
drm_trace_points.c
…
drm_vblank.c
…
drm_vblank_work.c
…
drm_vm.c LoongArch: Add writecombine support for drm 2022-06-03 20:09:27 +08:00
drm_vma_manager.c drm/drm_vma_manager: Add drm_vma_node_allow_once() 2023-02-01 08:34:42 +01:00
drm_writeback.c drm: Drop drm_framebuffer.h from drm_crtc.h 2022-06-20 23:53:55 +03:00