The flag FBINFO_FLAG_DEFAULT is 0 and has no effect, as struct
fbinfo.flags has been allocated to zero by a static declaration. So do
not set it.
Flags should signal differences from the default values. After cleaning
up all occurrences of FBINFO_DEFAULT, the token will be removed.
v2:
* fix commit message (Miguel)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Helge Deller <deller@gmx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230715185343.7193-16-tzimmermann@suse.de
The flag FBINFO_FLAG_DEFAULT is 0 and has no effect, as struct
fbinfo.flags has been allocated to zero by framebuffer_alloc(). So
do not set it.
Flags should signal differences from the default values. After cleaning
up all occurrences of FBINFO_DEFAULT, the token will be removed.
v4:
* clarify commit message (Geert, Dan)
v2:
* fix commit message (Miguel)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Jaya Kumar <jayalk@intworks.biz>
Cc: Helge Deller <deller@gmx.de>
Cc: Peter Jones <pjones@redhat.com>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Cc: Maik Broemme <mbroemme@libmpq.org>
Cc: Jingoo Han <jingoohan1@gmail.com>
Cc: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Cc: Teddy Wang <teddy.wang@siliconmotion.com>
Cc: Michal Januszewski <spock@gentoo.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230715185343.7193-15-tzimmermann@suse.de
The flag FBINFO_FLAG_DEFAULT is 0 and has no effect, as struct
fbinfo.flags has been allocated to zero by kzalloc(). So do not
set it.
Flags should signal differences from the default values. After cleaning
up all occurrences of FBINFO_DEFAULT, the token will be removed.
v4:
* clarify commit message (Geert, Dan)
v2:
* fix commit message (Miguel)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Helge Deller <deller@gmx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230715185343.7193-14-tzimmermann@suse.de
The flag FBINFO_DEFAULT is 0 and has no effect, as struct fbinfo.flags
has been allocated to zero by dmam_alloc_coherent(__GFP_ZERO). So do not
set it.
Flags should signal differences from the default values. After cleaning
up all occurrences of FBINFO_DEFAULT, the token will be removed.
v2:
* fix commit message (Miguel)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Timur Tabi <timur@kernel.org>
Cc: Helge Deller <deller@gmx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230715185343.7193-7-tzimmermann@suse.de
The flag FBINFO_DEFAULT is 0 and has no effect, as struct fbinfo.flags
has been allocated to zero by framebuffer_alloc(). So do not set it.
Flags should signal differences from the default values. After cleaning
up all occurrences of FBINFO_DEFAULT, the token will be removed.
v4:
* clarify commit message (Geert, Dan)
v2:
* fix commit message (Miguel)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Nicolas Ferre <nicolas.ferre@microchip.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Ferenc Bakonyi <fero@drama.obuda.kando.hu>
Cc: "K. Y. Srinivasan" <kys@microsoft.com>
Cc: Haiyang Zhang <haiyangz@microsoft.com>
Cc: Wei Liu <wei.liu@kernel.org>
Cc: Dexuan Cui <decui@microsoft.com>
Cc: Antonino Daplas <adaplas@gmail.com>
Cc: Maik Broemme <mbroemme@libmpq.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Nicholas Piggin <npiggin@gmail.com>
Cc: Christophe Leroy <christophe.leroy@csgroup.eu>
Cc: Kristoffer Ericson <kristoffer.ericson@gmail.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Steve Glendinning <steve.glendinning@shawell.net>
Cc: Bernie Thompson <bernie@plugable.com>
Cc: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230715185343.7193-6-tzimmermann@suse.de
The flag FBINFO_DEFAULT is 0 and has no effect, as struct fbinfo.flags
has been allocated to zero by devm_kzalloc(). So do not set it.
Flags should signal differences from the default values. After cleaning
up all occurrences of FBINFO_DEFAULT, the token will be removed.
v4:
* clarify commit message (Geert, Dan)
v2:
* fix commit message (Miguel)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Helge Deller <deller@gmx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230715185343.7193-5-tzimmermann@suse.de
The flag FBINFO_DEFAULT is 0 and has no effect, as struct fbinfo.flags
has been allocated to zero by kzalloc(). So do not set it.
Flags should signal differences from the default values. After cleaning
up all occurrences of FBINFO_DEFAULT, the token will be removed.
v4:
* clarify commit message (Geert, Dan)
v2:
* fix commit message (Miguel)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Helge Deller <deller@gmx.de>
Cc: Russell King <linux@armlinux.org.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20230715185343.7193-4-tzimmermann@suse.de
The flag FBINFO_DEFAULT is 0 and has no effect, as struct fbinfo.flags
has been allocated to zero by a static declaration. So do not set it.
Flags should signal differences from the default values. After cleaning
up all occurrences of FBINFO_DEFAULT, the token will be removed.
v4:
* clarify commit message (Geert, Dan)
v2:
* fix commit message (Miguel)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Helge Deller <deller@gmx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230715185343.7193-3-tzimmermann@suse.de
Currently the CONFIG_FB option has to be enabled even if no legacy fbdev
drivers are needed (e.g: only to have support for framebuffer consoles).
The DRM subsystem has a fbdev emulation layer, but depends on CONFIG_FB
and so it can only be enabled if that dependency is enabled as well.
That means fbdev drivers have to be explicitly disabled if users want to
enable CONFIG_FB, only to use fbcon and/or the DRM fbdev emulation layer.
This patch introduces a non-visible CONFIG_FB_CORE symbol that could be
enabled just to have core support needed for CONFIG_DRM_FBDEV_EMULATION,
allowing CONFIG_FB to be disabled (and automatically disabling all the
fbdev drivers).
Nothing from fb_backlight.o and fbmon.o is used by the DRM fbdev emulation
layer so these two objects can be compiled out when CONFIG_FB is disabled.
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Helge Deller <deller@gmx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230719081544.741051-4-javierm@redhat.com
The drivers/video/fbdev/Kconfig defines both symbols for fbdev drivers and
core fbdev symbols, that can be enabled independently of the fbdev drivers.
Split the Kconfig in two, one that only has the symbols for fbdev drivers
and another one that contains the fbdev core symbols.
Suggested-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Helge Deller <deller@gmx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230719081544.741051-3-javierm@redhat.com
The drivers in this subsystem are for either character-based or monochrome
LCD controllers. Which can fall into the same category of the DRM/KMS and
fbdev drivers, that are located under the "Graphics support" menu.
Add the auxdisplay drivers there as well to have all display drivers under
the same menu.
Suggested-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Tested-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Helge Deller <deller@gmx.de>
Acked-by: Miguel Ojeda <ojeda@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230719081544.741051-2-javierm@redhat.com
The DT of_device.h and of_platform.h date back to the separate
of_platform_bus_type before it as merged into the regular platform bus.
As part of that merge prepping Arm DT support 13 years ago, they
"temporarily" include each other. They also include platform_device.h
and of.h. As a result, there's a pretty much random mix of those include
files used throughout the tree. In order to detangle these headers and
replace the implicit includes with struct declarations, users need to
explicitly include the correct includes.
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Rob Herring <robh@kernel.org>
Signed-off-by: Helge Deller <deller@gmx.de>
function clk_prepare_enable may fail in ep93xxfb_probe, therefore,
add a return value check to clk_prepare_enable and handle the
error.
Signed-off-by: Yuanjun Gong <ruc_gongyuanjun@163.com>
Signed-off-by: Helge Deller <deller@gmx.de>
This func misses checking for platform_get_irq()'s call and may passes the
negative error codes to request_irq(), which takes unsigned IRQ #,
causing it to fail with -EINVAL, overriding an original error code.
Fix this by stop calling request_irq() with invalid IRQ #s.
Fixes: 1630d85a8312 ("au1200fb: fix hardcoded IRQ")
Signed-off-by: Zhang Shurong <zhang_shurong@foxmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
Don't populate the const read-only arrays on the stack but instead
make them static const. Use smaller types to use less storage for
the arrays. Also makes the object code a little smaller.
Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
There are many places c->vc_cell_height is used in the code of
vgacon_cursor(). Caching the value to a local variable makes the code
much easier to follow.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Helge Deller <deller@gmx.de>
The return value is neither used, nor vgacon_doresize() returns an
error. So change the reurn type to void.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Helge Deller <deller@gmx.de>
Most of the forward declarations in vgacon are not needed. Drop them.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Helge Deller <deller@gmx.de>
Switch vgacon_scrolldelta() and vgacon_restore_screen() positions, so
that the former is not needed to be forward-declared.
Signed-off-by: "Jiri Slaby (SUSE)" <jirislaby@kernel.org>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Helge Deller <deller@gmx.de>
UAPI Changes:
* fbdev:
* Make fbdev userspace interfaces optional; only leaves the
framebuffer console active
* prime:
* Support dma-buf self-import for all drivers automatically: improves
support for many userspace compositors
Cross-subsystem Changes:
* backlight:
* Fix interaction with fbdev in several drivers
* base: Convert struct platform.remove to return void; part of a larger,
tree-wide effort
* dma-buf: Acquire reservation lock for mmap() in exporters; part
of an on-going effort to simplify locking around dma-bufs
* fbdev:
* Use Linux device instead of fbdev device in many places
* Use deferred-I/O helper macros in various drivers
* i2c: Convert struct i2c from .probe_new to .probe; part of a larger,
tree-wide effort
* video:
* Avoid including <linux/screen_info.h>
Core Changes:
* atomic:
* Improve logging
* prime:
* Remove struct drm_driver.gem_prime_mmap plus driver updates: all
drivers now implement this callback with drm_gem_prime_mmap()
* gem:
* Support execution contexts: provides locking over multiple GEM
objects
* ttm:
* Support init_on_free
* Swapout fixes
Driver Changes:
* accel:
* ivpu: MMU updates; Support debugfs
* ast:
* Improve device-model detection
* Cleanups
* bridge:
* dw-hdmi: Improve support for YUV420 bus format
* dw-mipi-dsi: Fix enable/disable of DSI controller
* lt9611uxc: Use MODULE_FIRMWARE()
* ps8640: Remove broken EDID code
* samsung-dsim: Fix command transfer
* tc358764: Handle HS/VS polarity; Use BIT() macro; Various cleanups
* Cleanups
* ingenic:
* Kconfig REGMAP fixes
* loongson:
* Support display controller
* mgag200:
* Minor fixes
* mxsfb:
* Support disabling overlay planes
* nouveau:
* Improve VRAM detection
* Various fixes and cleanups
* panel:
* panel-edp: Support AUO B116XAB01.4
* Support Visionox R66451 plus DT bindings
* Cleanups
* ssd130x:
* Support per-controller default resolution plus DT bindings
* Reduce memory-allocation overhead
* Cleanups
* tidss:
* Support TI AM625 plus DT bindings
* Implement new connector model plus driver updates
* vkms
* Improve write-back support
* Documentation fixes
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Merge tag 'drm-misc-next-2023-07-13' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
drm-misc-next for v6.6:
UAPI Changes:
* fbdev:
* Make fbdev userspace interfaces optional; only leaves the
framebuffer console active
* prime:
* Support dma-buf self-import for all drivers automatically: improves
support for many userspace compositors
Cross-subsystem Changes:
* backlight:
* Fix interaction with fbdev in several drivers
* base: Convert struct platform.remove to return void; part of a larger,
tree-wide effort
* dma-buf: Acquire reservation lock for mmap() in exporters; part
of an on-going effort to simplify locking around dma-bufs
* fbdev:
* Use Linux device instead of fbdev device in many places
* Use deferred-I/O helper macros in various drivers
* i2c: Convert struct i2c from .probe_new to .probe; part of a larger,
tree-wide effort
* video:
* Avoid including <linux/screen_info.h>
Core Changes:
* atomic:
* Improve logging
* prime:
* Remove struct drm_driver.gem_prime_mmap plus driver updates: all
drivers now implement this callback with drm_gem_prime_mmap()
* gem:
* Support execution contexts: provides locking over multiple GEM
objects
* ttm:
* Support init_on_free
* Swapout fixes
Driver Changes:
* accel:
* ivpu: MMU updates; Support debugfs
* ast:
* Improve device-model detection
* Cleanups
* bridge:
* dw-hdmi: Improve support for YUV420 bus format
* dw-mipi-dsi: Fix enable/disable of DSI controller
* lt9611uxc: Use MODULE_FIRMWARE()
* ps8640: Remove broken EDID code
* samsung-dsim: Fix command transfer
* tc358764: Handle HS/VS polarity; Use BIT() macro; Various cleanups
* Cleanups
* ingenic:
* Kconfig REGMAP fixes
* loongson:
* Support display controller
* mgag200:
* Minor fixes
* mxsfb:
* Support disabling overlay planes
* nouveau:
* Improve VRAM detection
* Various fixes and cleanups
* panel:
* panel-edp: Support AUO B116XAB01.4
* Support Visionox R66451 plus DT bindings
* Cleanups
* ssd130x:
* Support per-controller default resolution plus DT bindings
* Reduce memory-allocation overhead
* Cleanups
* tidss:
* Support TI AM625 plus DT bindings
* Implement new connector model plus driver updates
* vkms
* Improve write-back support
* Documentation fixes
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230713090830.GA23281@linux-uq9g
Include <linux/screen_info.h> to get the global screen_info state.
Fixes the following errors:
>> drivers/video/fbdev/hyperv_fb.c:1033:10: error: use of undeclared identifier 'screen_info'
1033 | base = screen_info.lfb_base;
| ^
drivers/video/fbdev/hyperv_fb.c:1034:10: error: use of undeclared identifier 'screen_info'
1034 | size = screen_info.lfb_size;
| ^
>> drivers/video/fbdev/hyperv_fb.c:1080:3: error: must use 'struct' tag to refer to type 'screen_info'
1080 | screen_info.lfb_size = 0;
| ^
| struct
>> drivers/video/fbdev/hyperv_fb.c:1080:14: error: expected identifier or '('
1080 | screen_info.lfb_size = 0;
| ^
drivers/video/fbdev/hyperv_fb.c:1081:3: error: must use 'struct' tag to refer to type 'screen_info'
1081 | screen_info.lfb_base = 0;
| ^
| struct
drivers/video/fbdev/hyperv_fb.c:1081:14: error: expected identifier or '('
1081 | screen_info.lfb_base = 0;
| ^
drivers/video/fbdev/hyperv_fb.c:1082:3: error: must use 'struct' tag to refer to type 'screen_info'
1082 | screen_info.orig_video_isVGA = 0;
| ^
| struct
drivers/video/fbdev/hyperv_fb.c:1082:14: error: expected identifier or '('
1082 | screen_info.orig_video_isVGA = 0;
| ^
8 errors generated.
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202307101042.rqehuauj-lkp@intel.com/
Fixes: 8b0d13545b09 ("efi: Do not include <linux/screen_info.h> from EFI header")
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Cc: "K. Y. Srinivasan" <kys@microsoft.com> (supporter:Hyper-V/Azure CORE AND DRIVERS)
Cc: Haiyang Zhang <haiyangz@microsoft.com> (supporter:Hyper-V/Azure CORE AND DRIVERS)
Cc: Wei Liu <wei.liu@kernel.org> (supporter:Hyper-V/Azure CORE AND DRIVERS)
Cc: Dexuan Cui <decui@microsoft.com> (supporter:Hyper-V/Azure CORE AND DRIVERS)
Cc: Helge Deller <deller@gmx.de> (maintainer:FRAMEBUFFER LAYER)
Cc: Javier Martinez Canillas <javierm@redhat.com>
Cc: Sui Jingfeng <suijingfeng@loongson.cn>
Cc: Ard Biesheuvel <ardb@kernel.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will@kernel.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: linux-efi@vger.kernel.org
Cc: linux-hyperv@vger.kernel.org (open list:Hyper-V/Azure CORE AND DRIVERS)
Cc: linux-fbdev@vger.kernel.org (open list:FRAMEBUFFER LAYER)
Cc: dri-devel@lists.freedesktop.org (open list:FRAMEBUFFER LAYER)
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Sui Jingfeng <suijingfeng@loongson.cn>
Link: https://patchwork.freedesktop.org/patch/msgid/20230710075848.23087-1-tzimmermann@suse.de
These labels are now redundant and don't do anything, let's remove them.
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Signed-off-by: Helge Deller <deller@gmx.de>
No need for manual kfree in the error path and the remove function.
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Signed-off-by: Helge Deller <deller@gmx.de>
Remove unnecessary release_mem_region from the error path to prevent
mem region from being released twice, which could avoid resource leak
or other unexpected issues.
Fixes: b083c22d5114 ("video: fbdev: imxfb: Convert request_mem_region + ioremap to devm_ioremap_resource")
Signed-off-by: Yangtao Li <frank.li@vivo.com>
Signed-off-by: Helge Deller <deller@gmx.de>
SIMPLE_DEV_PM_OPS is deprecated, replace it with DEFINE_SIMPLE_DEV_PM_OPS
and use pm_sleep_ptr for setting the driver's pm routines. We can now
remove the __maybe_unused qualifier in the suspend and resume functions.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Signed-off-by: Helge Deller <deller@gmx.de>
Warn about invalid var->left_margin or var->right_margin. Their values
are read from the device tree.
We store var->left_margin-3 and var->right_margin-1 in register
fields. These fields should be >= 0.
Fixes: 7e8549bcee00 ("imxfb: Fix margin settings")
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Signed-off-by: Helge Deller <deller@gmx.de>
Use the existing generator macros to create deferred-I/O helpers
for xen-fbfront and set them in the fb_ops structure. Functions
for damage handling on memory ranges and areas are provided by
the driver.
Xen-fbfront's implementation of fb_write writes to system memory,
so the generated code can use the respective helper internally.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Helge Deller <deller@gmx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230706151432.20674-11-tzimmermann@suse.de
The Kconfig token FB_SYS_HELPERS_DEFERRED selects everything that
is required for deferred I/O on system-memory framebuffers. Select
it from XEN_FBDEV_FRONTEND in favor of the existing identical selection.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Helge Deller <deller@gmx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230706151432.20674-10-tzimmermann@suse.de
Use the existing generator macros to create deferred-I/O helpers
for ssd1307fb and set them in the fb_ops structure. Functions
for damage handling on memory ranges and areas are provided by
the driver.
Ssd1307fb's implementation of fb_write writes to system memory,
so the generated code can use the respective helper internally.
This also fixes a long-standing bug where fb_write returned an
errno code instead of the number of written bytes. See the commit
message of commit 921b7383f348 ("fbdev: Return number of bytes
read or written") for more details.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Helge Deller <deller@gmx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230706151432.20674-9-tzimmermann@suse.de
The Kconfig token FB_SYS_HELPERS_DEFERRED selects everything that
is required for deferred I/O on system-memory framebuffers. Select
it from FB_SSD1307 in favor of the existing identical selection.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Helge Deller <deller@gmx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230706151432.20674-8-tzimmermann@suse.de
Use the existing generator macros to create deferred-I/O helpers
for metronomefb and set them in the fb_ops structure. Functions
for damage handling on memory ranges and areas are provided by
the driver.
Metronomefb's implementation of fb_write writes to system memory,
so the generated code can use the respective helper internally.
This also fixes a long-standing bug where fb_write returned an
errno code instead of the number of written bytes. See the commit
message of commit 921b7383f348 ("fbdev: Return number of bytes
read or written") for more details.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Helge Deller <deller@gmx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230706151432.20674-7-tzimmermann@suse.de
The Kconfig token FB_SYS_HELPERS_DEFERRED selects everything that
is required for deferred I/O on system-memory framebuffers. Select
it from FB_METRONOME in favor of the existing identical selection.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Helge Deller <deller@gmx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230706151432.20674-6-tzimmermann@suse.de
Use the existing generator macros to create deferred-I/O helpers
for hecubafb and set them in the fb_ops structure. Functions
for damage handling on memory ranges and areas are provided by
the driver.
Hecubafb's implementation of fb_write writes to system memory,
so the generated code can use the respective helper internally.
This also fixes a long-standing bug where fb_write returned an
errno code instead of the number of written bytes. See the commit
message of commit 921b7383f348 ("fbdev: Return number of bytes
read or written") for more details.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Helge Deller <deller@gmx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230706151432.20674-5-tzimmermann@suse.de
The Kconfig token FB_SYS_HELPERS_DEFERRED selects everything that
is required for deferred I/O on system-memory framebuffers. Select
it from FB_HECUBA.
Deferred I/O helpers were previously selected by n411, which builds
upon hecubafb. Remove these select statements in favor of the new one.
N411 does not implement any framebuffer I/O by itself.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Helge Deller <deller@gmx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230706151432.20674-4-tzimmermann@suse.de
Use the existing generator macros to create deferred-I/O helpers
for broadsheetfb and set them in the fb_ops structure. Functions
for damage handling on memory ranges and areas are provided by
the driver.
Broadsheedfb's implementation of fb_write writes to system memory,
so the generated code can use the respective helper internally.
This also fixes a long-standing bug where fb_write returned an
errno code instead of the number of written bytes. See the commit
message of commit 921b7383f348 ("fbdev: Return number of bytes
read or written") for more details.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Helge Deller <deller@gmx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230706151432.20674-3-tzimmermann@suse.de
The Kconfig token FB_SYS_HELPERS_DEFERRED selects everything that
is required for deferred I/O on system-memory framebuffers. Select
it from FB_BROADSHEET in favor of the existing identical selection.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Helge Deller <deller@gmx.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230706151432.20674-2-tzimmermann@suse.de
Sm712fb's dependency on <linux/screen_info.h> is artificial in that
it only uses struct screen_info for its internals. Replace the use of
struct screen_info with a custom data structure and remove the include
of <linux/screen_info.h>.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Cc: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Cc: Teddy Wang <teddy.wang@siliconmotion.com>
Cc: Helge Deller <deller@gmx.de>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230706104852.27451-3-tzimmermann@suse.de
- Add lots of Device Tree bindings / support
- Turn off LED strings when display is blank
- Switch I2C drivers from .probe_new() to .probe()
- Remove superfluous NULL checks
- Only obtain PWM information once and do it in .probe()
- Fix-ups
- Ensure locks are obtained and held when required
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Merge tag 'backlight-next-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight
Pull backlight updates from Lee Jones:
"New Functionality:
- Add lots of Device Tree bindings / support
- Turn off LED strings when display is blank
- Switch I2C drivers from .probe_new() to .probe()
- Remove superfluous NULL checks
- Only obtain PWM information once and do it in .probe()
Fix-ups:
- Ensure locks are obtained and held when required"
* tag 'backlight-next-6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/backlight:
backlight: led_bl: Take led_access lock when required
video: backlight: lp855x: Get PWM for PWM mode during probe
dt-bindings: backlight: lp855x: Convert to YAML and modernize
dt-bindings: backlight: pwm: Make power-supply not required
backlight: pwm_bl: Remove unneeded checks for valid GPIOs
backlight: Switch i2c drivers back to use .probe()
backlight: lm3630a: Turn off both led strings when display is blank
dt-bindings: leds: backlight: ktz8866: Add reg property and update example
Fix the STI console to be able to execute either the 64-bit STI ROM code
or the 32-bit STI ROM code.
This is necessary on 64-bit only machines (e.g. C8000 workstation) which
otherwise won't show the STI text console with HP graphic cards like
Visualize-FX5/FX10/FXe.
Note that when calling 32-bit code from a 64-bit kernel one needs to
copy contents on the CPU stack from high memory down below the 4GB
limit.
Tested-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
Some 64-bit machines require us to call the STI ROM in 64-bit mode, e.g.
with the VisFXe graphic card.
This patch allows drivers to use such 64-bit calling conventions.
Tested-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
core:
- replace strlcpy with strscpy
- EDID changes to support further conversion to struct drm_edid
- Move i915 DSC parameter code to common DRM helpers
- Add Colorspace functionality
aperture:
- ignore framebuffers with non-primary devices
fbdev:
- use fbdev i/o helpers
- add Kconfig options for fb_ops helpers
- use new fb io helpers directly in drivers
sysfs:
- export DRM connector ID
scheduler:
- Avoid an infinite loop
ttm:
- store function table in .rodata
- Add query for TTM mem limit
- Add NUMA awareness to pools
- Export ttm_pool_fini()
bridge:
- fsl-ldb: support i.MX6SX
- lt9211, lt9611: remove blanking packets
- tc358768: implement input bus formats, devm cleanups
- ti-snd65dsi86: implement wait_hpd_asserted
- analogix: fix endless probe loop
- samsung-dsim: support swapped clock, fix enabling, support var clock
- display-connector: Add support for external power supply
- imx: Fix module linking
- tc358762: Support reset GPIO
panel:
- nt36523: Support Lenovo J606F
- st7703: Support Anbernic RG353V-V2
- InnoLux G070ACE-L01 support
- boe-tv101wum-nl6: Improve initialization
- sharp-ls043t1le001: Mode fixes
- simple: BOE EV121WXM-N10-1850, S6D7AA0
- Ampire AM-800480L1TMQW-T00H
- Rocktech RK043FN48H
- Starry himax83102-j02
- Starry ili9882t
amdgpu:
- add new ctx query flag to handle reset better
- add new query/set shadow buffer for rdna3
- DCN 3.2/3.1.x/3.0.x updates
- Enable DC_FP on loongarch
- PCIe fix for RDNA2
- improve DC FAMS/SubVP support for better power management
- partition support for lots of engines
- Take NUMA into account when allocating memory
- Add new DRM_AMDGPU_WERROR config parameter to help with CI
- Initial SMU13 overdrive support
- Add support for new colorspace KMS API
- W=1 fixes
amdkfd:
- Query TTM mem limit rather than hardcoding it
- GC 9.4.3 partition support
- Handle NUMA for partitions
- Add debugger interface for enabling gdb
- Add KFD event age tracking
radeon:
- Fix possible UAF
i915:
- new getparam for PXP support
- GSC/MEI proxy driver
- Meteorlake display enablement
- avoid clearing preallocated framebuffers with TTM
- implement framebuffer mmap support
- Disable sampler indirect state in bindless heap
- Enable fdinfo for GuC backends
- GuC loading and firmware table handling fixes
- Various refactors for multi-tile enablement
- Define MOCS and PAT tables for MTL
- GSC/MEI support for Meteorlake
- PMU multi-tile support
- Large driver kernel doc cleanup
- Allow VRR toggling and arbitrary refresh rates
- Support async flips on linear buffers on display ver 12+
- Expose CRTC CTM property on ILK/SNB/VLV
- New debugfs for display clock frequencies
- Hotplug refactoring
- Display refactoring
- I915_GEM_CREATE_EXT_SET_PAT for Mesa on Meteorlake
- Use large rings for compute contexts
- HuC loading for MTL
- Allow user to set cache at BO creation
- MTL powermanagement enhancements
- Switch to dedicated workqueues to stop using flush_scheduled_work()
- Move display runtime init under display/
- Remove 10bit gamma on desktop gen3 parts, they don't support it
habanalabs:
- uapi: return 0 for user queries if there was a h/w or f/w error
- Add pci health check when we lose connection with the firmware. This can be used to
distinguish between pci link down and firmware getting stuck.
- Add more info to the error print when TPC interrupt occur.
- Firmware fixes
msm:
- Adreno A660 bindings
- SM8350 MDSS bindings fix
- Added support for DPU on sm6350 and sm6375 platforms
- Implemented tearcheck support to support vsync on SM150 and newer platforms
- Enabled missing features (DSPP, DSC, split display) on sc8180x, sc8280xp, sm8450
- Added support for DSI and 28nm DSI PHY on MSM8226 platform
- Added support for DSI on sm6350 and sm6375 platforms
- Added support for display controller on MSM8226 platform
- A690 GPU support
- Move cmdstream dumping out of fence signaling path
- a610 support
- Support for a6xx devices without GMU
nouveau:
- NULL ptr before deref fixes
armada:
- implement fbdev emulation as client
sun4i:
- fix mipi-dsi dotclock
- release clocks
vc4:
- rgb range toggle property
- BT601 / BT2020 HDMI support
vkms:
- convert to drmm helpers
- add reflection and rotation support
- fix rgb565 conversion
gma500:
- fix iomem access
shmobile:
- support renesas soc platform
- enable fbdev
mxsfb:
- Add support for i.MX93 LCDIF
stm:
- dsi: Use devm_ helper
- ltdc: Fix potential invalid pointer deref
renesas:
- Group drivers in renesas subdirectory to prepare for new platform
- Drop deprecated R-Car H3 ES1.x support
meson:
- Add support for MIPI DSI displays
virtio:
- add sync object support
mediatek:
- Add display binding document for MT6795
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Merge tag 'drm-next-2023-06-29' of git://anongit.freedesktop.org/drm/drm
Pull drm updates from Dave Airlie:
"There is one set of patches to misc for a i915 gsc/mei proxy driver.
Otherwise it's mostly amdgpu/i915/msm, lots of hw enablement and lots
of refactoring.
core:
- replace strlcpy with strscpy
- EDID changes to support further conversion to struct drm_edid
- Move i915 DSC parameter code to common DRM helpers
- Add Colorspace functionality
aperture:
- ignore framebuffers with non-primary devices
fbdev:
- use fbdev i/o helpers
- add Kconfig options for fb_ops helpers
- use new fb io helpers directly in drivers
sysfs:
- export DRM connector ID
scheduler:
- Avoid an infinite loop
ttm:
- store function table in .rodata
- Add query for TTM mem limit
- Add NUMA awareness to pools
- Export ttm_pool_fini()
bridge:
- fsl-ldb: support i.MX6SX
- lt9211, lt9611: remove blanking packets
- tc358768: implement input bus formats, devm cleanups
- ti-snd65dsi86: implement wait_hpd_asserted
- analogix: fix endless probe loop
- samsung-dsim: support swapped clock, fix enabling, support var
clock
- display-connector: Add support for external power supply
- imx: Fix module linking
- tc358762: Support reset GPIO
panel:
- nt36523: Support Lenovo J606F
- st7703: Support Anbernic RG353V-V2
- InnoLux G070ACE-L01 support
- boe-tv101wum-nl6: Improve initialization
- sharp-ls043t1le001: Mode fixes
- simple: BOE EV121WXM-N10-1850, S6D7AA0
- Ampire AM-800480L1TMQW-T00H
- Rocktech RK043FN48H
- Starry himax83102-j02
- Starry ili9882t
amdgpu:
- add new ctx query flag to handle reset better
- add new query/set shadow buffer for rdna3
- DCN 3.2/3.1.x/3.0.x updates
- Enable DC_FP on loongarch
- PCIe fix for RDNA2
- improve DC FAMS/SubVP support for better power management
- partition support for lots of engines
- Take NUMA into account when allocating memory
- Add new DRM_AMDGPU_WERROR config parameter to help with CI
- Initial SMU13 overdrive support
- Add support for new colorspace KMS API
- W=1 fixes
amdkfd:
- Query TTM mem limit rather than hardcoding it
- GC 9.4.3 partition support
- Handle NUMA for partitions
- Add debugger interface for enabling gdb
- Add KFD event age tracking
radeon:
- Fix possible UAF
i915:
- new getparam for PXP support
- GSC/MEI proxy driver
- Meteorlake display enablement
- avoid clearing preallocated framebuffers with TTM
- implement framebuffer mmap support
- Disable sampler indirect state in bindless heap
- Enable fdinfo for GuC backends
- GuC loading and firmware table handling fixes
- Various refactors for multi-tile enablement
- Define MOCS and PAT tables for MTL
- GSC/MEI support for Meteorlake
- PMU multi-tile support
- Large driver kernel doc cleanup
- Allow VRR toggling and arbitrary refresh rates
- Support async flips on linear buffers on display ver 12+
- Expose CRTC CTM property on ILK/SNB/VLV
- New debugfs for display clock frequencies
- Hotplug refactoring
- Display refactoring
- I915_GEM_CREATE_EXT_SET_PAT for Mesa on Meteorlake
- Use large rings for compute contexts
- HuC loading for MTL
- Allow user to set cache at BO creation
- MTL powermanagement enhancements
- Switch to dedicated workqueues to stop using flush_scheduled_work()
- Move display runtime init under display/
- Remove 10bit gamma on desktop gen3 parts, they don't support it
habanalabs:
- uapi: return 0 for user queries if there was a h/w or f/w error
- Add pci health check when we lose connection with the firmware.
This can be used to distinguish between pci link down and firmware
getting stuck.
- Add more info to the error print when TPC interrupt occur.
- Firmware fixes
msm:
- Adreno A660 bindings
- SM8350 MDSS bindings fix
- Added support for DPU on sm6350 and sm6375 platforms
- Implemented tearcheck support to support vsync on SM150 and newer
platforms
- Enabled missing features (DSPP, DSC, split display) on sc8180x,
sc8280xp, sm8450
- Added support for DSI and 28nm DSI PHY on MSM8226 platform
- Added support for DSI on sm6350 and sm6375 platforms
- Added support for display controller on MSM8226 platform
- A690 GPU support
- Move cmdstream dumping out of fence signaling path
- a610 support
- Support for a6xx devices without GMU
nouveau:
- NULL ptr before deref fixes
armada:
- implement fbdev emulation as client
sun4i:
- fix mipi-dsi dotclock
- release clocks
vc4:
- rgb range toggle property
- BT601 / BT2020 HDMI support
vkms:
- convert to drmm helpers
- add reflection and rotation support
- fix rgb565 conversion
gma500:
- fix iomem access
shmobile:
- support renesas soc platform
- enable fbdev
mxsfb:
- Add support for i.MX93 LCDIF
stm:
- dsi: Use devm_ helper
- ltdc: Fix potential invalid pointer deref
renesas:
- Group drivers in renesas subdirectory to prepare for new platform
- Drop deprecated R-Car H3 ES1.x support
meson:
- Add support for MIPI DSI displays
virtio:
- add sync object support
mediatek:
- Add display binding document for MT6795"
* tag 'drm-next-2023-06-29' of git://anongit.freedesktop.org/drm/drm: (1791 commits)
drm/i915: Fix a NULL vs IS_ERR() bug
drm/i915: make i915_drm_client_fdinfo() reference conditional again
drm/i915/huc: Fix missing error code in intel_huc_init()
drm/i915/gsc: take a wakeref for the proxy-init-completion check
drm/msm/a6xx: Add A610 speedbin support
drm/msm/a6xx: Add A619_holi speedbin support
drm/msm/a6xx: Use adreno_is_aXYZ macros in speedbin matching
drm/msm/a6xx: Use "else if" in GPU speedbin rev matching
drm/msm/a6xx: Fix some A619 tunables
drm/msm/a6xx: Add A610 support
drm/msm/a6xx: Add support for A619_holi
drm/msm/adreno: Disable has_cached_coherent in GMU wrapper configurations
drm/msm/a6xx: Introduce GMU wrapper support
drm/msm/a6xx: Move CX GMU power counter enablement to hw_init
drm/msm/a6xx: Extend and explain UBWC config
drm/msm/a6xx: Remove both GBIF and RBBM GBIF halt on hw init
drm/msm/a6xx: Add a helper for software-resetting the GPU
drm/msm/a6xx: Improve a6xx_bus_clear_pending_transactions()
drm/msm/a6xx: Move a6xx_bus_clear_pending_transactions to a6xx_gpu
drm/msm/a6xx: Move force keepalive vote removal to a6xx_gmu_force_off()
...
- fix potential OOB read in fast_imageblit()
- fbdev/media: Use GPIO descriptors for VIA GPIO
- broadsheetfb & metronomefb: Add MODULE_FIRMWARE macro
- omapfb: error handling fix in mipid_spi_probe()
- sh_mobile_lcdcfb, sh7760fb: Typo and warning fixes
- hitfb: code cleanups
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Merge tag 'fbdev-for-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev
Pull fbdev updates from Helge Deller:
"Some fbdev fixes & cleanups.
Includes is a fix for a potential out-of-bound memory access
in fast_imageblit() and the switch of the VIA fbdev driver to
use GPIO descriptors.
Summary:
- fix potential OOB read in fast_imageblit()
- fbdev/media: Use GPIO descriptors for VIA GPIO
- broadsheetfb & metronomefb: Add MODULE_FIRMWARE macro
- omapfb: error handling fix in mipid_spi_probe()
- sh_mobile_lcdcfb, sh7760fb: Typo and warning fixes
- hitfb: code cleanups"
* tag 'fbdev-for-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev:
fbdev: fix potential OOB read in fast_imageblit()
MAINTAINERS: adjust entry in VIA UNICHROME(PRO)/CHROME9 FRAMEBUFFER DRIVER
fbdev: sh7760fb: Fix -Wimplicit-fallthrough warnings
fbdev: sh_mobile_lcdcfb: Fix ARGB32 overlay format typo
fbdev: hitfb: Use NULL for pointers
fbdev: hitfb: Fix integer-to-pointer cast
fbdev/media: Use GPIO descriptors for VIA GPIO
video/hdmi: Reorder fields in 'struct hdmi_avi_infoframe'
fbdev: broadsheetfb: Add MODULE_FIRMWARE macro
fbdev: metronomefb: Add MODULE_FIRMWARE macro
fbdev: hitfb: Declare hitfb_blank() as static
fbdev: omapfb: lcd_mipid: Fix an error handling path in mipid_spi_probe()
Core GPIO library:
- remove unused symbols
- don't spam the kernel log with messages about hogs
- remove old sysfs API cruft
- improve handling of GPIO masks
New drivers
- add a driver for the BlueField-3 GPIO controller
- add GPIO support for the TPS65219 PMIC
Driver improvements:
- extend the gpio-aggregator driver to support ramp-up/ramp-down delay
- remove unnecessary CONFIG_OF guards from gpio-aggregator
- readability improvements in gpio-tangier
- switch i2c drivers back to using probe() now that it's been converted in
the i2c subsystem to not taking the id parameter
- remove unused inclusions of of_gpio.h in several drivers
- make pm ops static in gpio-davinci and fix a comment
- use more devres in drivers to shrink and simplify the code
- add missing include in gpio-sa1100
- add HAS_IOPORT KConfig dependency where needed
- add permissions checks before accessing pins in gpio-tegra186
- convert the gpio-zynq driver to using immutable irqchips
- preserve output settings set by the bootloader in gpio-mpc8xxx
Selftests:
- tweak the variable naming in script tests
Device tree updates:
- convert gpio-mmio and gpio-stmpe to YAML
- add parsing of GPIO hogs to gpio-vf610
- add bindings for the Cirrus EP93xx GPIO controller
- add gpio-line-names property to the gpio-pca9570 bindings
- extend the binding for x-powers,axp209 with another block
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Merge tag 'gpio-updates-for-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux
Pull gpio updates from Bartosz Golaszewski:
"We have two new drivers, some improvements to the core code, lots of
different updates to existing GPIO drivers and some dt-bindings on
top.
There's nothing controversial in here and almost everything has been
in next for more than a week (95% a lot longer than this). The only
thing that has spent less time in next is a new driver so no risk of
regressions.
The single merge pulls in changes that remove all usage of global GPIO
numbers from arch/arm/mach-omap.
Core GPIO library:
- remove unused symbols
- don't spam the kernel log with messages about hogs
- remove old sysfs API cruft
- improve handling of GPIO masks
New drivers:
- add a driver for the BlueField-3 GPIO controller
- add GPIO support for the TPS65219 PMIC
Driver improvements:
- extend the gpio-aggregator driver to support ramp-up/ramp-down
delay
- remove unnecessary CONFIG_OF guards from gpio-aggregator
- readability improvements in gpio-tangier
- switch i2c drivers back to using probe() now that it's been
converted in the i2c subsystem to not taking the id parameter
- remove unused inclusions of of_gpio.h in several drivers
- make pm ops static in gpio-davinci and fix a comment
- use more devres in drivers to shrink and simplify the code
- add missing include in gpio-sa1100
- add HAS_IOPORT KConfig dependency where needed
- add permissions checks before accessing pins in gpio-tegra186
- convert the gpio-zynq driver to using immutable irqchips
- preserve output settings set by the bootloader in gpio-mpc8xxx
Selftests:
- tweak the variable naming in script tests
Device tree updates:
- convert gpio-mmio and gpio-stmpe to YAML
- add parsing of GPIO hogs to gpio-vf610
- add bindings for the Cirrus EP93xx GPIO controller
- add gpio-line-names property to the gpio-pca9570 bindings
- extend the binding for x-powers,axp209 with another block"
* tag 'gpio-updates-for-v6.5' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (58 commits)
of: unittest: drop assertions for GPIO hog messages
gpiolib: Drop unused domain_ops memeber of GPIO IRQ chip
gpio: synq: remove unused zynq_gpio_irq_reqres/zynq_gpio_irq_relres
dt-bindings: gpio: gpio-vf610: Add parsing of hogs
gpio: lpc18xx: Remove unused of_gpio.h inclusion
gpio: xra1403: Remove unused of_gpio.h inclusion
gpio: mpc8xxx: Remove unused of_gpio.h inclusion
dt-bindings: gpio: Add Cirrus EP93xx
gpio: mpc8xxx: latch GPIOs state on module load when configured as output
selftests: gpio: gpio-sim: Use same variable name for sysfs pathname
gpio: mlxbf3: Add gpio driver support
gpio: delay: Remove duplicative functionality
gpio: aggregator: Set up a parser of delay line parameters
gpio: aggregator: Support delay for setting up individual GPIOs
gpio: aggregator: Remove CONFIG_OF and of_match_ptr() protections
dt-bindings: gpio: pca9570: add gpio-line-names property
gpiolib: remove unused gpio_cansleep()
gpio: tps65219: add GPIO support for TPS65219 PMIC
gpio: zynq: fix zynqmp_gpio not an immutable chip warning
gpio: davinci: make davinci_gpio_dev_pm_ops static
...
Add Kconfig option CONFIG_FB_DEVICE and make the virtual fbdev
device optional. If the new option has not been selected, fbdev
does not create files in devfs, sysfs or procfs.
Most modern Linux systems run a DRM-based graphics stack that uses
the kernel's framebuffer console, but has otherwise deprecated fbdev
support. Yet fbdev userspace interfaces are still present.
The option makes it possible to use the fbdev subsystem as console
implementation without support for userspace. This closes potential
entry points to manipulate kernel or I/O memory via framebuffers. It
also prevents the execution of driver code via ioctl or sysfs, both
of which might allow malicious software to exploit bugs in the fbdev
code.
A small number of fbdev drivers require struct fbinfo.dev to be
initialized, usually for the support of sysfs interface. Make these
drivers depend on FB_DEVICE. They can later be fixed if necessary.
v3:
* effect -> affect in Kconfig help (Daniel)
v2:
* set FB_DEVICE default to y (Geert)
* comment on {get,put}_device() (Sam)
* Kconfig fixes (Sam)
* add TODO item about FB_DEVICE dependencies (Sam)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230613110953.24176-39-tzimmermann@suse.de
Init the class "graphics" before the rest of fbdev. Later steps, such
as the sysfs code, depend on the class. Also arrange the module's exit
code in reverse order.
Unexport the global variable fb_class, which is only shared internally
within the fbdev core module.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20230613110953.24176-38-tzimmermann@suse.de
