- 04 Mar, 2020 1 commit
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Ramalingam C authored
As we are not using the sysfs infrastructure anymore, link to it is removed. And global srm data and mutex to protect it are removed, with required handling at revocation check function. v2: srm_data is dropped and few more comments are addressed. v3: ptr passing around is fixed with functional testing. v4: fix htmldoc [lkp] Signed-off-by:
Ramalingam C <ramalingam.c@intel.com> Suggested-by:
Sean Paul <seanpaul@chromium.org> Reviewed-by:
Sean Paul <sean@poorly.run> Link: https://patchwork.freedesktop.org/patch/msgid/20200212102942.26568-2-ramalingam.c@intel.com
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- 02 Mar, 2020 22 commits
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Gustavo A. R. Silva authored
The current codebase makes use of the zero-length array language extension to the C90 standard, but the preferred mechanism to declare variable-length types such as these ones is a flexible array member[1][2], introduced in C99: struct foo { int stuff; struct boo array[]; }; By making use of the mechanism above, we will get a compiler warning in case the flexible array does not occur last in the structure, which will help us prevent some kind of undefined behavior bugs from being inadvertently introduced[3] to the codebase from now on. Also, notice that, dynamic memory allocations won't be affected by this change: "Flexible array members have incomplete type, and so the sizeof operator may not be applied. As a quirk of the original implementation of zero-length arrays, sizeof evaluates to zero."[1] This issue was found with the help of Coccinelle. [1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html [2] https://github.com/KSPP/linux/issues/21 [3] commit 76497732 ("cxgb3/l2t: Fix undefined behaviour") Signed-off-by:Gustavo A. R. Silva <gustavo@embeddedor.com> Signed-off-by:
Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200221160005.GA13552@embeddedor
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Souptick Joarder authored
This is dead code since 3.15 and can be removed if not going to be useful further. Signed-off-by:
Souptick Joarder <jrdr.linux@gmail.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by:
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Andy Shevchenko authored
Replace with appropriate types.h. Signed-off-by:
Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by:
Hans de Goede <hdegoede@redhat.com> Signed-off-by:
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Rich Felker authored
It's needed to support the onboard video on my Spectre-free Atom S1260 server board. Signed-off-by:
Rich Felker <dalias@libc.org> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Thomas Gleixner <tglx@linutronix.de> [b.zolnierkie: patch description fixup] Signed-off-by:
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yu kuai authored
Fixes gcc '-Wunused-but-set-variable' warning: drivers/video/fbdev/aty/mach64_gx.c: In function ‘aty_var_to_pll_8398’: drivers/video/fbdev/aty/mach64_gx.c:621:36: warning: variable ‘mach64RefFreq’ set but not used [-Wunused-but-set-variable] It is never used, and so can be removed. Signed-off-by:
yu kuai <yukuai3@huawei.com> Cc: zhengbin <zhengbin13@huawei.com> Cc: yi.zhang <yi.zhang@huawei.com> [b.zolnierkie: minor patch summary fixup] Signed-off-by:
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yu kuai authored
Fixes gcc '-Wunused-but-set-variable' warning: drivers/video/fbdev/kyro/STG4000OverlayDevice.c: In function ‘SetOverlayViewPort’: drivers/video/fbdev/kyro/STG4000OverlayDevice.c:334:19: warning: variable ‘ulScaleRight’ set but not used [-Wunused-but-set-variable] It is never used, and so can be removed. Signed-off-by:
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yu kuai authored
Fixes gcc '-Wunused-but-set-variable' warning: drivers/video/fbdev/aty/radeon_base.c: In function ‘radeonfb_set_par’: drivers/video/fbdev/aty/radeon_base.c:1660:32: warning: variable ‘bytpp’ set but not used [-Wunused-but-set-variable] It is never used, and so can be removed. Signed-off-by:
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yu kuai authored
Fixes gcc '-Wunused-but-set-variable' warning: drivers/video/fbdev/aty/radeon_base.c: In function ‘radeonfb_set_par’: drivers/video/fbdev/aty/radeon_base.c:1653:48: warning: variable ‘cSync’ set but not used [-Wunused-but-set-variable] It is never used, and so can be removed. Signed-off-by:
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yu kuai authored
Fixes gcc '-Wunused-but-set-variable' warning: drivers/video/fbdev/aty/radeon_base.c: In function ‘radeonfb_set_par’: drivers/video/fbdev/aty/radeon_base.c:1653:38: warning: variable ‘vSyncPol’ set but not used [-Wunused-but-set-variable] It is never used, and so can be removed. Signed-off-by:
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yu kuai authored
Fixes gcc '-Wunused-but-set-variable' warning: drivers/video/fbdev/aty/radeon_base.c: In function ‘radeonfb_set_par’: drivers/video/fbdev/aty/radeon_base.c:1653:6: warning: variable ‘hSyncPol’ set but not used [-Wunused-but-set-variable] It is never used, and so can be removed. Signed-off-by:
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Bartlomiej Zolnierkiewicz authored
Add COMPILE_TEST support to wm8505fb driver for better compile testing coverage. Signed-off-by:
Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/900c16b3-9306-7d17-f467-0f98bc95416a@samsung.com
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Bartlomiej Zolnierkiewicz authored
Use ->screen_buffer instead of ->screen_base to fix sparse warnings. [ Please see commit 17a7b0b4 ("fb.h: Provide alternate screen_base pointer") for details. ] Signed-off-by:
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Bartlomiej Zolnierkiewicz authored
Add COMPILE_TEST support to w100fb driver for better compile testing coverage. Signed-off-by:
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Bartlomiej Zolnierkiewicz authored
* Add missing __iomem annotations where needed. * Make w100fb_probe() static. * Return NULL pointer (instead of using plain integer) in w100_get_xtal_tabl(). Signed-off-by:
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Bartlomiej Zolnierkiewicz authored
Add COMPILE_TEST support to arcfb driver for better compile testing coverage. Signed-off-by:
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Bartlomiej Zolnierkiewicz authored
Add COMPILE_TEST support to sh_mobile_lcdcfb driver for better compile testing coverage. Signed-off-by:
Geert Uytterhoeven <geert+renesas@glider.be> Link: https://patchwork.freedesktop.org/patch/msgid/d98fea18-b72e-6d0f-33ac-1421738bd12b@samsung.com
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Bartlomiej Zolnierkiewicz authored
Use ->screen_buffer instead of ->screen_base to fix sparse warnings. [ Please see commit 17a7b0b4 ("fb.h: Provide alternate screen_base pointer") for details. ] Signed-off-by:
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YueHaibing authored
commit 640ba244 ("drivers/video/pxa168fb.c: use devm_ functions") left behind this, it can be removed. Signed-off-by:
YueHaibing <yuehaibing@huawei.com> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Cc: Jani Nikula <jani.nikula@intel.com> Cc: Chuhong Yuan <hslester96@gmail.com> Signed-off-by:
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Thomas Zimmermann authored
The qxl driver uses an empty implementation for its encoder. Replace the code with the generic simple encoder. v4: * handle errors returned from drm_simple_encoder_init() v2: * rebase onto new simple-encoder interface Signed-off-by:
Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by:
Gerd Hoffmann <kraxel@redhat.com> Signed-off-by:
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Thomas Zimmermann authored
The mgag200 driver uses an empty implementation for its encoder. Replace the code with the generic simple encoder. v4: * print error message with drm_err() v3: * init pre-allocated encoder with drm_simple_encoder_init() v2: * rebase onto new simple-encoder interface Signed-off-by:
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Thomas Zimmermann authored
The ast driver uses an empty implementation for its encoder. Replace the code with the generic simple encoder. v2: * rebase onto new simple-encoder interface Signed-off-by:
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Thomas Zimmermann authored
This patch makes the internal encoder implementation of the simple KMS helpers available to drivers. These simple-encoder helpers initialize an encoder with an empty implementation. This covers the requirements of most of the existing DRM drivers. A call to drm_simple_encoder_create() allocates and initializes an encoder instance, a call to drm_simple_encoder_init() initializes a pre-allocated instance. v3: * remove drm_simple_encoder_create(); not required yet * provide more precise documentation v2: * move simple encoder to KMS helpers * remove name argument; simplifies implementation * don't allocate with devm_ interfaces; unsafe with DRM Signed-off-by:
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- 29 Feb, 2020 8 commits
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Sam Ravnborg authored
The panel-dpi compatible is a fallback that allows the DT to specify the timing. When matching panel-dpi expect the device tree to include the timing information for the display-panel. Background for this change: There are a lot of panels and new models hits the market very often. It is a lost cause trying to chase them all and users of new panels will often find them in situations that the panel they ues are not supported by the kernel. On top of this a lot of panels are customized based on customer specifications. Including the panel timing in the device tree allows for a simple way to describe the actual HW and use this description in a generic way in the kernel. This allows uses of proprietary panels, or panels which are not included in the kernel, to specify the timing in the device tree together with all the other HW descriptions. And thus, using the device tree it is then easy to add support for an otherwise unknown panel. The current support expect panels that do not require any delays for prepare/enable/disable/unprepare. Oleksandr Suvorov replied: I've just tested this patch on Apalis iMX6Q and Colibri iMX7D using panel settings from the following patch: https://lore.kernel.org/linux-arm-kernel/20200115123401.2264293-4-oleksandr.suvorov@toradex.com/ It works for me, thanks! Signed-off-by:
Oleksandr Suvorov <oleksandr.suvorov@toradex.com> Tested-by:
Maxime Ripard <mripard@kernel.org> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Maxime Ripard <mripard@kernel.org> Cc: Oleksandr Suvorov <oleksandr.suvorov@toradex.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200216181513.28109-6-sam@ravnborg.org
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Sam Ravnborg authored
Add data-mapping property that can be used to specify the media format used for the connection betwwen the display controller (connector) and the panel. v2: - drop lvds666 (Rob) Signed-off-by:
Rob Herring <robh@kernel.org> Acked-by:
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Sam Ravnborg authored
With panel-timing converted, now convert the single remaining .txt user in panel/ of panel-timing to DT schema. v2: - Drop Thierry as maintainer, as this is not a general panel binding and I have no acks. - Drop requirement for a panel- specific binding - "panel-dpi" is enough - Updated example v3: - added yaml document terminator "..." - always require a specific binding - panel-dpi (based on feedback from Rob) - use "power-supply" for the supply property, and made it mandatory "power-supply" is the standard property for panels Signed-off-by: -
Sam Ravnborg authored
Add display-timings.yaml - that references panel-timings.yaml. display-timings.yaml will be used for display bindings when they are converted to meta-schema format. For now the old display-timing.txt points to the new display-timings.yaml - and all users are left as-is. v2: - Updated native-mode description v3: - Simpler "^timing" pattern (Rob) - timing node is of type object (Rob) - added display-timings to panel-common.yaml - added yaml document terminator "..." Signed-off-by:
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Sam Ravnborg authored
Add meta-schema variant of panel-timing and reference it from panel-common.yaml. Part of this came form other files with other licenses - original commits: commit cc3f414c ("video: add of helper for display timings/videomode") commit 86f46565 ("dt-bindings: display: display-timing: Add property to configure sync drive edge") commit 9cad9c95 ("Documentation: DocBook DRM framework documentation") The original authors acked the license change to: (GPL-2.0-only OR BSD-2-Clause) v2: - Got OK from original authors for re-license Huge thanks for the quick replies! - Typo fixes (Oleksandr) - Drop -array variant when not needed (Maxime) - Replace oneOf:... with enum (Maxime) - Drop type from clock-frequency (Rob) - Drop "|" when not needed (Rob) v3: - Added comment to acks that are only for the license change - Add yaml document terminator "..." - Updated description (removed reference to native-mode) Signed-off-by:
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Linus Walleij authored
This adds a driver for panels based on the Novatek NT35510 display driver IC, such as the Hydis HVA40WV1 panel found in the Samsung GT-S7710. The NT35510 can be used with both internal and external backlight (such as GPIO backlight) so we support both: if no external backlight is found, we register a subdriver for the internal backlight. Cc: Stephan Gerhold <stephan@gerhold.net> Signed-off-by:
Linus Walleij <linus.walleij@linaro.org> Signed-off-by:
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Linus Walleij authored
This adds device tree bindings for the Novatek NT35510-based family of panels. Since several such panels are in existence we define bindings common for all, and define the compatible string for one certain panel (Hydis HVA40WV1). As other panels are discovered and investigated, we can add more compatibles to the binding using oneOf constructions. Cc: Stephan Gerhold <stephan@gerhold.net> Cc: devicetree@vger.kernel.org Signed-off-by:
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Linus Walleij authored
This vendor has produced a number of display panels, including HVA40WV1. Cc: devicetree@vger.kernel.org Cc: Stephan Gerhold <stephan@gerhold.net> Signed-off-by:
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- 28 Feb, 2020 8 commits
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Dan Carpenter authored
There is an integer overflow when we round up to PAGE_SIZE, but it's harmless because we never re-use "request->size" for anything meaningful. Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20200228092321.axulddmkxrujkmas@kili.mountain
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Emmanuel Vadot authored
Contributors for this file are : Chris Wilson <chris@chris-wilson.co.uk> Denis Efremov <efremov@linux.com> Jani Nikula <jani.nikula@intel.com> Maxime Ripard <mripard@kernel.org> Noralf Trønnes <noralf@tronnes.org> Sam Ravnborg <sam@ravnborg.org> Thomas Zimmermann <tzimmermann@suse.de> Acked-by:
Jani Nikula <jani.nikula@intel.com> Acked-by:
Chris Wilson <chris@chris-wilson.co.uk> Acked-by:
Noralf Trønnes <noralf@tronnes.org> Acked-by:
Denis Efremov <efremov@linux.com> Acked-by:
Emmanuel Vadot <manu@FreeBSD.org> Signed-off-by:
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YueHaibing authored
There is no need to have the 'const struct dispc_csc_coef *coef' variable static since new value always be assigned before use it. Signed-off-by:
Jyri Sarha <jsarha@ti.com> Tested-by:
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Colin Ian King authored
There are two spelling mistakes in warning and debug messages. Fix them. Signed-off-by:
Colin Ian King <colin.king@canonical.com> Reviewed-by:
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Laurent Pinchart authored
Replace the manual encoder->bridge_chain walk with the drm_for_each_bridge_in_chain() macro. Drivers should not touch the bridge_chain field directly. Signed-off-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by:
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Jyri Sarha authored
The old implementation of placing planes on the CRTC while configuring the planes was naive and relied on the order in which the planes were configured, enabled, and disabled. The situation where a plane's zpos was changed on the fly was completely broken. The usual symptoms of this problem was scrambled display and a flood of sync lost errors, when a plane was active in two layers at the same time, or a missing plane, in case when a layer was accidentally disabled. The rewrite takes a more straight forward approach when HW is concerned. The plane positioning registers are in the CRTC (or actually OVR) register space and it is more natural to configure them in a one go when configuring the CRTC. To do this we need make sure we have all the planes on the updated CRTCs in the new atomic state. The untouched planes on CRTCs that need plane position update are added to the atomic state in tidss_atomic_check(). Signed-off-by:
Tomi Valkeinen <tomi.valkeinen@ti.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200227120052.23168-1-jsarha@ti.com
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Benjamin Gaignard authored
Check that computed crc value is matching the one encoded in the message. Signed-off-by:
Benjamin Gaignard <benjamin.gaignard@st.com> Reviewed-by:
Lyude Paul <lyude@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200203121620.9002-1-benjamin.gaignard@st.com
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Benjamin Gaignard authored
Fix the warnings that show up with W=1. They are all about unused but set variables. If functions returns are not used anymore make them void. Signed-off-by:
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- 27 Feb, 2020 1 commit
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kbuild test robot authored
Fixes: 3e1399bc ("drm/panfrost: Add support for multiple regulators") Signed-off-by:
kbuild test robot <lkp@intel.com> Reviewed-by:
Nicolas Boichat <drinkcat@chromium.org> Signed-off-by:
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