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Fix the compile-time warnings
drivers/video/fbdev/omap2/omapfb/dss/apply.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing
drivers/video/fbdev/omap2/omapfb/dss/core.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing
drivers/video/fbdev/omap2/omapfb/dss/dispc-compat.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing
drivers/video/fbdev/omap2/omapfb/dss/display.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing
drivers/video/fbdev/omap2/omapfb/dss/dss-of.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing
drivers/video/fbdev/omap2/omapfb/dss/dss_features.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing
drivers/video/fbdev/omap2/omapfb/dss/manager.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing
drivers/video/fbdev/omap2/omapfb/dss/output.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing
drivers/video/fbdev/omap2/omapfb/dss/overlay.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing
drivers/video/fbdev/omap2/omapfb/dss/venc.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing
drivers/video/fbdev/omap2/omapfb/vrfb.c: warning: EXPORT_SYMBOL() is used, but #include <linux/export.h> is missing
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Helge Deller <deller@gmx.de>
Fixes: a934a57a42f6 ("scripts/misc-check: check missing #include <linux/export.h> when W=1")
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Link: https://lore.kernel.org/r/20250612081738.197826-9-tzimmermann@suse.de
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After commit 0edb555a65d1 ("platform: Make platform_driver::remove()
return void") .remove() is (again) the right callback to implement for
platform drivers.
Convert all platform drivers below drivers/video/fbdev to use .remove(),
with the eventual goal to drop struct platform_driver::remove_new(). As
.remove() and .remove_new() have the same prototypes, conversion is done
by just changing the structure member name in the driver initializer.
While touching these files, make indention of the struct initializer
consistent in several files.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@baylibre.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Helge Deller <deller@gmx.de>
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The .remove() callback for a platform driver returns an int which makes
many driver authors wrongly assume it's possible to do error handling by
returning an error code. However the value returned is (mostly) ignored
and this typically results in resource leaks. To improve here there is a
quest to make the remove callback return void. In the first step of this
quest all drivers are converted to .remove_new() which already returns
void.
Trivially convert this driver from always returning zero in the remove
callback to the void returning variant.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Helge Deller <deller@gmx.de>
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Pull fbdev updates from Bartlomiej Zolnierkiewicz:
- remove fbdev notifier usage for fbcon (as prep work to clean up the
fbcon locking), add locking checks in vt/console code and make
assorted cleanups in fbdev and backlight code (Daniel Vetter)
- add COMPILE_TEST support to atmel_lcdfb, da8xx-fb, gbefb, imxfb,
pvr2fb and pxa168fb drivers (me)
- fix DMA API abuse in au1200fb and jz4740_fb drivers (Christoph
Hellwig)
- add check for new BGRT status field rotation bits in efifb driver
(Hans de Goede)
- mark expected switch fall-throughs in s3c-fb driver (Gustavo A. R.
Silva)
- remove fbdev mxsfb driver in favour of the drm version (Fabio
Estevam)
- remove broken rfbi code from omap2fb driver (me)
- misc fixes (Arnd Bergmann, Shobhit Kukreti, Wei Yongjun, me)
- misc cleanups (Gustavo A. R. Silva, Colin Ian King, me)
* tag 'fbdev-v5.3' of git://github.com/bzolnier/linux: (62 commits)
video: fbdev: imxfb: fix a typo in imxfb_probe()
video: fbdev: s3c-fb: Mark expected switch fall-throughs
video: fbdev: s3c-fb: fix sparse warnings about using incorrect types
video: fbdev: don't print error message on framebuffer_alloc() failure
video: fbdev: intelfb: return -ENOMEM on framebuffer_alloc() failure
video: fbdev: s3c-fb: return -ENOMEM on framebuffer_alloc() failure
vga_switcheroo: Depend upon fbcon being built-in, if enabled
video: fbdev: omap2: remove rfbi
video: fbdev: atmel_lcdfb: remove redundant initialization to variable ret
video: fbdev-MMP: Use struct_size() in devm_kzalloc()
video: fbdev: controlfb: fix warnings about comparing pointer to 0
efifb: BGRT: Add check for new BGRT status field rotation bits
jz4740_fb: fix DMA API abuse
video: fbdev: pvr2fb: fix link error for pvr2fb_pci_exit
video: fbdev: s3c-fb: add COMPILE_TEST support
video: fbdev: imxfb: fix sparse warnings about using incorrect types
video: fbdev: pvr2fb: fix build warning when compiling as module
fbcon: Export fbcon_update_vcs
backlight: simplify lcd notifier
staging/olpc_dcon: Add drm conversion to TODO
...
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Equivalent of drm's commit aa61321d4c08 ("drm/omap: remove rfbi").
The RFBI driver has been marked as BROKEN and has not been
included in the kernel build for many years. Just remove it
(it can be trivially brought back from git repository if
ever needed).
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
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Based on 1 normalized pattern(s):
this program is free software you can redistribute it and or modify
it under the terms of the gnu general public license version 2 as
published by the free software foundation this program is
distributed in the hope that it will be useful but without any
warranty without even the implied warranty of merchantability or
fitness for a particular purpose see the gnu general public license
for more details you should have received a copy of the gnu general
public license along with this program if not see http www gnu org
licenses
extracted by the scancode license scanner the SPDX license identifier
GPL-2.0-only
has been chosen to replace the boilerplate/reference in 503 file(s).
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Alexios Zavras <alexios.zavras@intel.com>
Reviewed-by: Allison Randal <allison@lohutok.net>
Reviewed-by: Enrico Weigelt <info@metux.net>
Cc: linux-spdx@vger.kernel.org
Link: https://lkml.kernel.org/r/20190602204653.811534538@linutronix.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Commit 60d2fa0dad06 ("fbdev: omap2: no need to check return value of
debugfs_create functions") changed the declaration of the return value
of function dss_debugfs_create_file() and the following two warnings
appeared:
drivers/video/fbdev/omap2/omapfb/dss/core.c: In function ‘dss_debugfs_create_file’:
drivers/video/fbdev/omap2/omapfb/dss/core.c:139:9: warning: ‘return’ with a value,
in function returning void
return 0;
^
drivers/video/fbdev/omap2/omapfb/dss/core.c: In function ‘omap_dss_probe’:
drivers/video/fbdev/omap2/omapfb/dss/core.c:172:6: warning: unused variable ‘r’
[-Wunused-variable]
int r;
^
Rework so function dss_debugfs_create_file() that is declared to return
void don't 'return 0' and remove the declaration of the unused variable
'r'.
Signed-off-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
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When calling debugfs functions, there is no need to ever check the
return value. The function can work or not, but the code logic should
never do something different based on this.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Tony Lindgren <tony@atomide.com>
Cc: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
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Use DEFINE_SHOW_ATTRIBUTE macro to simplify the code.
Signed-off-by: Yangtao Li <tiny.windzz@gmail.com>
Cc: Fengguang Wu <fengguang.wu@intel.com>
Cc: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
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drivers/video/fbdev/omap2/omapfb/dss/core.c:141:2-26: WARNING: NULL check before some freeing functions is not needed.
NULL check before some freeing functions is not needed.
Based on checkpatch warning
"kfree(NULL) is safe this check is probably not required"
and kfreeaddr.cocci by Julia Lawall.
Generated by: scripts/coccinelle/free/ifnullfree.cocci
Fixes: 7378f1149884 ("media: omap2: omapfb: allow building it with COMPILE_TEST")
Signed-off-by: kbuild test robot <fengguang.wu@intel.com>
Cc: Mauro Carvalho Chehab <m.chehab@samsung.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
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Removing the default display name left a harmless warning:
fbdev/omap2/omapfb/dss/core.c: In function 'omap_dss_probe':
fbdev/omap2/omapfb/dss/core.c:196:30: error: unused variable 'pdata' [-Werror=unused-variable]
This removes the now-unused variable as well.
Fixes: 278cba7eaf54 ("drm: omapdrm: Remove unused default display name support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
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The default display name is both unused and never set by platform data.
Remove default display name module parameter, platform data field and
runtime infrastructure.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Reviewed-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
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Copy the content of video/omapdss.h to a new (video/omapfb_dss.h) header
file and convert the omapfb drivers to use this new file.
The new header file is needed to complete the separation of omapdrm and
omapfb implementation of DSS.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
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The default_device is no longer used, it is a leftower from legacy. The
else if (pdata->default_device) is always going to be false.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
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We need to change the config symbols of omapfb's private copy of
omapdss so that we won't have config symbol conflicts.
This patch changes the symbols from omapdss using simple replacement of
CONFIG_OMAP* to CONFIG_FB_OMAP*.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Acked-by: Rob Clark <robdclark@gmail.com>
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This patch makes a copy of the omapdss driver and the omap panel &
encoder drivers for omapfb. The purpose is to separate omapdrm and
omapfb drivers from each other.
Note that this patch only does a direct copy of the files without any
other modifications. The files are not yet used.
The original files are in:
drivers/video/fbdev/omap2/dss/
drivers/video/fbdev/omap2/displays-new/
Here's a more detailed explanation about this and the following patches,
from the introduction mail of the patch series:
A short background on the current status. We have the following
entities:
* omapdss, located in drivers/video/fbdev/omap2/dss/. This is a driver for the
display subsystem IPs used on OMAP (and related) SoCs. It offers only a
kernel internal API, and does not implement anything for fbdev or drm.
* omapdss panels and encoders, located in
drivers/video/fbdev/omap2/displays-new/. These are panel and external encoder
drivers, which use APIs offered by omapdss driver. These also don't implement
anything for fbdev or drm.
* omapdrm, located in drivers/gpu/drm/omapdrm/. This is a drm driver, which
uses omapdss and the panel/encoder drivers to operate the hardware.
* omapfb, located in drivers/video/fbdev/omap2/omapfb/. This is an fbdev
driver, which uses omapdss and the panel/encoder drivers to operate the
hardware.
* omap_vout, located in drivers/media/platform/omap/. This is a v4l2 driver,
which uses omapdss and omapfb to implement a v4l2 API for the video overlays.
So, on the top level, we have either omapdrm, or omapfb+omap_vout. Both of
those use the same low level drivers. Without going to the historical details
why the architecture is like that, I think it's finally time to change that.
The situation with omapfb+omap_vout is that it still works, but no new features
have been added for a long time, and I want to keep it working as it's still
being used. At some point in the future I'd like to remove omapfb and
omap_vout altogether.
Omapdrm, on the other hand, is being actively developed. Sharing the low level
parts with omapfb makes that development more difficult than it should be. It
also "hides" half of the development, as everything happening in the low level
parts resides under fbdev directory, not in the drm directory.
I've been wanting to clean this up for a long time, but I haven't figured out a
very good way to do it. I still haven't, but here's the best way I have come up
with.
This series makes a full copy of the low level parts, omapdss and panel/encoder
drivers. Both omapfb+omap_vout and omapdrm will have their own versions. The
copy omapfb+omap_vout get is a new copy, and the copy that omapdrm gets is just
the current files moved. This way git will associate the omapdrm version with
the old files.
The omapfb+omap_vout versions won't be touched unless there are some big issues
there.
The omapdrm versions can be refactored and cleaned up, as the omapfb support
code is no longer needed. We can perhaps also merge omapdss and omapdrm into
the same kernel module.
This series only does the copy, and the absolutely necessary parts. No further
cleanups are done yet.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Acked-by: Dave Airlie <airlied@gmail.com>
Acked-by: Rob Clark <robdclark@gmail.com>
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