- 17 Oct, 2021 2 commits
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AngeloGioacchino Del Regno authored
The nt35950 IC from Novatek is a Driver IC used to drive MIPI-DSI panels, with Static RAM for content retention in command mode and also supports video mode with VESA Frame Buffer Compression or Display Stream Compression on single, or dual dsi port(s). This DDIC is also capable of upscaling an input image to the panel's native resolution, for example it can upscale a 1920x1080 input to 3840x2160 with either bilinear interpolation or pixel duplication. Signed-off-by:
AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org> Reviewed-by:
Rob Herring <robh@kernel.org> Signed-off-by:
Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20210901173127.998901-2-angelogioacchino.delregno@somainline.org
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Marek Vasut authored
Current code always sets reset line low in .pre_enable callback and holds it low for 10ms. This is sub-optimal and increases the time between enablement of the DSI83 and valid LVDS clock. Rework the reset handling such that the reset line is held low for 10ms both in probe() of the driver and .disable callback, which guarantees that the reset line was always held low for more than 10ms and therefore the reset line timing requirement is satisfied. Furthermore, move the reset handling into .enable callback so the entire DSI83 initialization is now in one place. This reduces DSI83 enablement delay by up to 10ms. Signed-off-by:
Marek Vasut <marex@denx.de> Reviewed-by:
Linus Walleij <linus.walleij@linaro.org> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Robert Foss <robert.foss@linaro.org> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: dri-devel@lists.freedesktop.org Signed-off-by:
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- 16 Oct, 2021 4 commits
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Michael Trimarchi authored
Depends in how logic is connected to the board the gpio is not stricly required. Signed-off-by:
Michael Trimarchi <michael@amarulasolutions.com> Signed-off-by:
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Michael Trimarchi authored
W552946ABA is a panel by Wanchanglong. This panel utilizes the Ilitek ILI9881D controller. Add this panel's initialzation sequence and timing to ILI9881D driver. Tested on px30-evb v11 Signed-off-by:
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Michael Trimarchi authored
It utilizes an Ilitek ILI9881D controller chip, but its compatible with ili9881c so should be added to ilitek,ili9881c file. Add the compatible string for it. Signed-off-by:
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Michael Trimarchi authored
Wanchanglong Electronics Technology is a company to provide LCD modules. Signed-off-by:
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- 15 Oct, 2021 9 commits
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AngeloGioacchino Del Regno authored
Convert the Silicon Image SiI9234 HDMI/MHL bridge documentation to YAML. Signed-off-by:
AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Reviewed-by:
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Qing Wang authored
coccicheck complains about the use of snprintf() in sysfs show functions. Fix the coccicheck warning: WARNING: use scnprintf or sprintf. Use sysfs_emit instead of scnprintf or sprintf makes more sense. Signed-off-by:
Qing Wang <wangqing@vivo.com> Signed-off-by:
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Qing Wang authored
coccicheck complains about the use of snprintf() in sysfs show functions. Fix the coccicheck warning: WARNING: use scnprintf or sprintf. Use sysfs_emit instead of scnprintf or sprintf makes more sense. Signed-off-by:
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AngeloGioacchino Del Regno authored
Convert the NXP PTN3460 eDP to LVDS bridge documentation to YAML. Signed-off-by:
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Sam Ravnborg authored
Commit build fix that I forgot to amend :-( Fixes: 50848e37 ("drm/tiny: add driver for newhaven, 1.8-128160EF") Signed-off-by:
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Daniel Mack authored
This patch adds support for Newhaven's NHD-1.8-128160EF display, featuring an Ilitek ILI9163 controller. Signed-off-by:
Daniel Mack <daniel@zonque.org> Acked-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by:
Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by:
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Daniel Mack authored
This adds documentation for a new ILI9163 based, SPI connected display. Signed-off-by:
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Qing Wang authored
show() must not use snprintf() when formatting the value to be returned to user space. Fix the following coccicheck warning: drivers/gpu/drm/panel/panel-dsi-cm.c:251: WARNING: use scnprintf or sprintf. drivers/gpu/drm/panel/panel-dsi-cm.c:271: WARNING: use scnprintf or sprintf. Use sysfs_emit instead of scnprintf or sprintf makes more sense. Signed-off-by:
Sebastian Reichel <sebastian.reichel@collabora.com> Signed-off-by:
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Neil Armstrong authored
Since we allow interlace on the encoder, also allow it on the bridge so we can allow interlaced modes when using DRM_BRIDGE_ATTACH_NO_CONNECTOR. Signed-off-by:
Neil Armstrong <narmstrong@baylibre.com> Acked-by:
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- 14 Oct, 2021 25 commits
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Cai Huoqing authored
When possible use dev_err_probe help to properly deal with the PROBE_DEFER error, the benefit is that DEFER issue will be logged in the devices_deferred debugfs file. And using dev_err_probe() can reduce code size, the error value gets printed. Signed-off-by:
Cai Huoqing <caihuoqing@baidu.com> Signed-off-by:
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Cai Huoqing authored
When possible use dev_err_probe help to properly deal with the PROBE_DEFER error, the benefit is that DEFER issue will be logged in the devices_deferred debugfs file. And using dev_err_probe() can reduce code size, the error value gets printed. Signed-off-by:
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Cai Huoqing authored
When possible use dev_err_probe help to properly deal with the PROBE_DEFER error, the benefit is that DEFER issue will be logged in the devices_deferred debugfs file. And using dev_err_probe() can reduce code size, the error value gets printed. Signed-off-by:
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Cai Huoqing authored
When possible use dev_err_probe help to properly deal with the PROBE_DEFER error, the benefit is that DEFER issue will be logged in the devices_deferred debugfs file. And using dev_err_probe() can reduce code size, the error value gets printed. Signed-off-by:
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Cai Huoqing authored
When possible use dev_err_probe help to properly deal with the PROBE_DEFER error, the benefit is that DEFER issue will be logged in the devices_deferred debugfs file. And using dev_err_probe() can reduce code size, the error value gets printed. Signed-off-by:
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Cai Huoqing authored
When possible use dev_err_probe help to properly deal with the PROBE_DEFER error, the benefit is that DEFER issue will be logged in the devices_deferred debugfs file. And using dev_err_probe() can reduce code size, the error value gets printed. Signed-off-by:
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Cai Huoqing authored
When possible use dev_err_probe help to properly deal with the PROBE_DEFER error, the benefit is that DEFER issue will be logged in the devices_deferred debugfs file. And using dev_err_probe() can reduce code size, the error value gets printed. Signed-off-by:
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Cai Huoqing authored
When possible use dev_err_probe help to properly deal with the PROBE_DEFER error, the benefit is that DEFER issue will be logged in the devices_deferred debugfs file. And using dev_err_probe() can reduce code size, and the error value gets printed. Signed-off-by:
Icenowy Zheng <icenowy@aosc.io> Signed-off-by:
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Cai Huoqing authored
When possible use dev_err_probe help to properly deal with the PROBE_DEFER error, the benefit is that DEFER issue will be logged in the devices_deferred debugfs file. And using dev_err_probe() can reduce code size, and the error value gets printed. Signed-off-by:
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Cai Huoqing authored
When possible use dev_err_probe help to properly deal with the PROBE_DEFER error, the benefit is that DEFER issue will be logged in the devices_deferred debugfs file. And using dev_err_probe() can reduce code size, and the error value gets printed. Signed-off-by:
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Cai Huoqing authored
When possible use dev_err_probe help to properly deal with the PROBE_DEFER error, the benefit is that DEFER issue will be logged in the devices_deferred debugfs file. And using dev_err_probe() can reduce code size, and the error value gets printed. Signed-off-by:
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Cai Huoqing authored
Removed extra whitespace before dev_err_probe() according to coding style. Signed-off-by:
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Brian Norris authored
Many DSI panel drivers fail to clean up their panel references on mipi_dsi_attach() failure, so we're leaving a dangling drm_panel reference to freed memory. Clean that up on failure. Noticed by inspection, after seeing similar problems on other drivers. Therefore, I'm not marking Fixes/stable. Signed-off-by:
Brian Norris <briannorris@chromium.org> Signed-off-by:
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Brian Norris authored
If we fail to attach (e.g., because 1 of 2 dual-DSI controllers aren't ready), we leave a dangling drm_panel reference to freed memory. Clean that up on failure. This problem exists since the driver's introduction, but is especially relevant after refactored for dual-DSI variants. Fixes: 14c8f2e9 ("drm/panel: add Innolux P079ZCA panel driver") Fixes: 7ad4e463 ("drm/panel: p079zca: Refactor panel driver to support multiple panels") Signed-off-by:
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Brian Norris authored
If we fail to attach (e.g., because 1 of 2 dual-DSI controllers aren't ready), we leave a dangling drm_panel reference to freed memory. Clean that up on failure. Fixes: 2a994cbe ("drm/panel: Add Kingdisplay KD097D04 panel driver") Signed-off-by:
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Raffaele Tranquillini authored
This adds support for the JDI R63452 Full HD LCD panel used on the Xiaomi Mi 5 smartphone, in MIPI DSI command mode. Signed-off-by:
Raffaele Tranquillini <raffaele.tranquillini@gmail.com> Signed-off-by:
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Raffaele Tranquillini authored
This add the bindings for the JDI FHD_R63452 1080x1920 5.2" LCD DSI panel used on the Xiaomi Mi 5 smartphone. Signed-off-by:
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Wang Hai authored
I got a null-ptr-deref report: [drm:drm_dev_init [drm]] *ERROR* Cannot allocate anonymous inode: -12 ================================================================== BUG: KASAN: null-ptr-deref in iput+0x3c/0x4a0 ... Call Trace: dump_stack_lvl+0x6c/0x8b kasan_report.cold+0x64/0xdb __asan_load8+0x69/0x90 iput+0x3c/0x4a0 drm_dev_init_release+0x39/0xb0 [drm] drm_managed_release+0x158/0x2d0 [drm] drm_dev_init+0x3a7/0x4c0 [drm] __devm_drm_dev_alloc+0x55/0xd0 [drm] mi0283qt_probe+0x8a/0x2b5 [mi0283qt] spi_probe+0xeb/0x130 ... entry_SYSCALL_64_after_hwframe+0x44/0xae If drm_fs_inode_new() fails in drm_dev_init(), dev->anon_inode will point to PTR_ERR(...) instead of NULL. This will result in null-ptr-deref when drm_fs_inode_free(dev->anon_inode) is called. drm_dev_init() drm_fs_inode_new() // fail, dev->anon_inode = PTR_ERR(...) drm_managed_release() drm_dev_init_release() drm_fs_inode_free() // access non-existent anon_inode Define a temp variable and assign it to dev->anon_inode if the temp variable is not PTR_ERR. Fixes: 2cbf7fc6 ("drm: Use drmm_ for drm_dev_init cleanup") Reported-by:
Hulk Robot <hulkci@huawei.com> Signed-off-by:
Wang Hai <wanghai38@huawei.com> Signed-off-by:
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Nikola Pavlica authored
The model and make of the LCD panel of the Vivax TPC-9150 is unknown, hence the panel settings that were retrieved with a FEX dump are named after the device NOT the actual panel. The LCD in question is a 50 pin MISO TFT LCD panel of the resolution 1024x600 used by the aforementioned device. Version 2, as Thierry kindly suggested that I fix the order in which the panel was ordered compared to others. Version 3, filling in the required info suggested by Sam. Plus some factual issues that I've corrected myself (tested working) Version 4, rearranged the display parameters and fix invalid bit format issue. (Thanks Sam) Version 5, referred to FEX file instead of manual debugging for information. Version 6, same as above. This time, it'll be documented. A bit of context first: I experimented with this a long time ago whilst I was first learning how to get Linux running on Allwinner boards, I didn't have many resources at hand so this was quite slow. Anyways, I stumbled upon this guide (https://linux-sunxi.org/LCD) and was reading about how to setup the LCD for my tablet. Since I was able to make a proper FEX dump, I was also able to read the correct parameters for myself without relying on leaked documents or part numbers and whatnot. In the FEX dump the value lcd_frm IS SET to 1, which means, at least according to the document, that this display is INDEED an 18 bit per pixel panel. Compiling U-Boot and seeing the tux in proper colors confirmed this. As per Sam Ravnborg's suggestion, I've changed the panel to his format "MEDIA_BUS_FMT_RGB666_1X7X3_SPWG", however this does not lead to any actual change in regards to the functionality since the sunxi panel driver just ignores this value. However, hopefully this clears up any errors down the road as either the driver becomes advanced enough to not ignore this value or that some other piece of software relies on this value being known. PS: Apologies to the maintainers that have to endure my misjudgement about how these things work. As for the concerns about a single patch series, I wasn't sure where to send the patches as they clearly aren't dt-bindings related and my previous patches have ended up in drm-misc-fixes anyway. So I'm guessing I'll be fine if I just post them in the list from last time??? Signed-off-by:
Nikola Pavlica <pavlica.nikola@gmail.com> Signed-off-by:
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Marek Vasut authored
Add helper function to convert DT "data-mapping" property string value into media bus format value, and deduplicate the code in panel-lvds.c and lvds-codec.c . Signed-off-by:
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Dan Carpenter authored
The "label" pointer is used for debug output. The code assumes that it is either NULL or valid, but it is never set to NULL. It is either valid or uninitialized. Fixes: 0c275c30 ("drm/bridge: Add bridge driver for display connectors") Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
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Oleksij Rempel authored
Add compatible and timings for the Innolux G070Y2-T02 panel. It is 7" WVGA (800x480) TFT LCD panel with TTL interface and a backlight unit. Co-Developed-by:
Robin van der Gracht <robin@protonic.nl> Signed-off-by:
Oleksij Rempel <o.rempel@pengutronix.de> Signed-off-by:
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Gustavo A. R. Silva authored
Fix the following fallthrough warnings: drivers/video/fbdev/omap/omapfb_main.c:1558:2: warning: unannotated fall-through between switch labels [-Wimplicit-fallthrough] case 0: ^ drivers/video/fbdev/omap/omapfb_main.c:1558:2: note: insert 'break;' to avoid fall-through case 0: ^ break; 1 warning generated. This helps with the ongoing efforts to globally enable -Wimplicit-fallthrough for Clang. Link: https://github.com/KSPP/linux/issues/115 Link: https://lore.kernel.org/lkml/202110141005.hUjaYMEi-lkp@intel.com/Reported-by:kernel test robot <lkp@intel.com> Signed-off-by:
Gustavo A. R. Silva <gustavoars@kernel.org> Signed-off-by:
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Hans de Goede authored
Register a privacy-screen device on laptops with a privacy-screen, this exports the PrivacyGuard features to user-space using a standardized vendor-agnostic sysfs interface. Note the sysfs interface is read-only. Registering a privacy-screen device with the new privacy-screen class code will also allow the GPU driver to get a handle to it and export the privacy-screen setting as a property on the DRM connector object for the LCD panel. This DRM connector property is a new standardized interface which all user-space code should use to query and control the privacy-screen. Reviewed-by:
Emil Velikov <emil.l.velikov@gmail.com> Reviewed-by:
Lyude Paul <lyude@redhat.com> Reviewed-by:
Mark Pearson <markpearson@lenovo.com> Signed-off-by:
Hans de Goede <hdegoede@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20211005202322.700909-9-hdegoede@redhat.com
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Hans de Goede authored
Get the privacy-screen / lcdshadow ACPI handles once and cache them, instead of retrieving them every time we need them. Reviewed-by:
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