- 04 Aug, 2023 18 commits
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Thomas Zimmermann authored
Set struct fb_ops and with FB_DEFAULT_IOMEM_OPS, fbdev's initializer for I/O memory. Sets the callbacks to the cfb_ and fb_io_ functions. Select the correct modules with Kconfig's FB_IOMEM_HELPERS token. The macro and token set the currently selected values, so there is no functional change. v3: * use _IOMEM_ in commit message v2: * updated to use _IOMEM_ tokens Signed-off-by:
Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by:
Sam Ravnborg <sam@ravnborg.org> Acked-by:
Helge Deller <deller@gmx.de> Cc: Peter Jones <pjones@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230803184034.6456-10-tzimmermann@suse.de
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Thomas Zimmermann authored
Set struct fb_ops and with FB_DEFAULT_IOMEM_OPS, fbdev's initializer for I/O memory. Sets the callbacks to the cfb_ and fb_io_ functions. Select the correct modules with Kconfig's FB_IOMEM_HELPERS token. The macro and token set the currently selected values, so there is no functional change. v3: * use _IOMEM_ in commit message v2: * updated to use _IOMEM_ tokens Signed-off-by:
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Thomas Zimmermann authored
Set struct fb_ops and with FB_DEFAULT_IOMEM_OPS, fbdev's initializer for I/O memory. Sets the callbacks to the cfb_ and fb_io_ functions. Select the correct modules with Kconfig's FB_IOMEM_HELPERS token. The macro and token set the currently selected values, so there is no functional change. v3: * use _IOMEM_ in commit message v2: * updated to use _IOMEM_ tokens Signed-off-by:
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Thomas Zimmermann authored
Set struct fb_ops and with FB_DEFAULT_IOMEM_OPS, fbdev's initializer for I/O memory. Sets the callbacks to the cfb_ and fb_io_ functions. Select the correct modules with Kconfig's FB_IOMEM_HELPERS token. The macro and token set the currently selected values, so there is no functional change. v3: * use _IOMEM_ in commit message v2: * updated to use _IOMEM_ tokens Signed-off-by:
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Thomas Zimmermann authored
Set struct fb_ops and with FB_DEFAULT_IOMEM_OPS, fbdev's initializer for I/O memory. Sets the callbacks to the cfb_ and fb_io_ functions. Select the correct modules with Kconfig's FB_IOMEM_HELPERS token. The macro and token set the currently selected values, so there is no functional change. v3: * use _IOMEM_ in commit message v2: * updated to use _IOMEM_ tokens Signed-off-by:
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Thomas Zimmermann authored
Set struct fb_ops and with FB_DEFAULT_IOMEM_OPS, fbdev's initializer for I/O memory. Sets the callbacks to the cfb_ and fb_io_ functions. Select the correct modules with Kconfig's FB_IOMEM_HELPERS token. The macro and token set the currently selected values, so there is no functional change. v3: * use _IOMEM_ in commit message v2: * updated to use _IOMEM_ tokens Signed-off-by:
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Thomas Zimmermann authored
Set struct fb_ops and with FB_DEFAULT_IOMEM_OPS, fbdev's initializer for I/O memory. Sets the callbacks to the cfb_ and fb_io_ functions. Select the correct modules with Kconfig's FB_IOMEM_HELPERS token. The macro and token set the currently selected values, so there is no functional change. v3: * use _IOMEM_ in commit message v2: * updated to use _IOMEM_ tokens Signed-off-by:
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Thomas Zimmermann authored
Set struct fb_ops and with FB_DEFAULT_IOMEM_OPS, fbdev's initializer for I/O memory. Sets the callbacks to the cfb_ and fb_io_ functions. Select the correct modules with Kconfig's FB_IOMEM_HELPERS token. The macro and token set the currently selected values, so there is no functional change. v3: * use _IOMEM_ in commit message v2: * updated to use _IOMEM_ tokens Signed-off-by:
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Thomas Zimmermann authored
Set struct fb_ops and with FB_DEFAULT_IOMEM_OPS, fbdev's initializer for I/O memory. Sets the callbacks to the cfb_ and fb_io_ functions. Select the correct modules with Kconfig's FB_IOMEM_HELPERS token. The macro and token set the currently selected values, so there is no functional change. v3: * use _IOMEM_ in commit message v2: * updated to use _IOMEM_ tokens Signed-off-by:
Hans Verkuil <hverkuil-cisco@xs4all.nl> Reviewed-by:
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Michael Riesch authored
The Jasonic JT240MHQS-HWT-EK-E3 is a custom panel using the Sitronix ST7789V controller. While the controller features a resolution of 320x240, only an area of 280x240 is visible by design. Signed-off-by:
Michael Riesch <michael.riesch@wolfvision.net> Reviewed-by:
Neil Armstrong <neil.armstrong@linaro.org> Signed-off-by:
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Michael Riesch authored
The ST7789V controller features support for the partial mode. Here, the area to be displayed can be restricted in one direction (by default, in vertical direction). This is useful for panels that are partially occluded by design. Add support for the partial mode. Signed-off-by:
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Michael Riesch authored
Add compatible for the Jasonic Technology Ltd. JT240MHQS-HWT-EK-E3 display. Acked-by:
Conor Dooley <conor.dooley@microchip.com> Signed-off-by:
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Michael Riesch authored
Add vendor prefix for Jasonic Technology Ltd., a manufacturer of custom LCD panels. Acked-by:
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Michael Riesch authored
The sitronix-st7789v driver now considers the rotation property. Add the property to the documentation. Acked-by:
Sebastian Reichel <sre@kernel.org> Signed-off-by:
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Michael Riesch authored
Determine the orientation of the display based on the device tree and propagate it. Reviewed-by:
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Michael Riesch authored
Fix indentation of the callbacks in struct drm_panel_funcs. No functional changes. Reviewed-by:
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Sandor Yu authored
The ELD (EDID-Like Data) is not updated when the HDMI cable is plugged into different HDMI monitors. This is because the EDID is not updated in the HDMI HPD function. As a result, the ELD data remains unchanged and may not reflect the capabilities of the newly connected HDMI sink device. To address this issue, the handle_plugged_change function should move to the bridge_atomic_enable and bridge_atomic_disable functions. Make sure the EDID is properly updated before updating ELD. Signed-off-by:
Sandor Yu <Sandor.yu@nxp.com> Reviewed-by:
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Dan Carpenter authored
This code doesn't check for lsdc_bo_create() failure and it could lead to a crash. It can fail for a variety of reasons, but the most common cause would be low memory. Add a check. Fixes: f39db26c ("drm: Add kms driver for loongson display controller") Signed-off-by:
Dan Carpenter <dan.carpenter@linaro.org> Reviewed-by:
Sui Jingfeng <suijingfeng@loongson.cn> Signed-off-by:
Sui Jingfeng <sui.jingfeng@linux.dev> Link: https://patchwork.freedesktop.org/patch/msgid/ZLeijglIMPve2Iio@kadam
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- 03 Aug, 2023 15 commits
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Simon Ser authored
It doesn't line up. Signed-off-by:
Simon Ser <contact@emersion.fr> Suggested-by:
Jani Nikula <jani.nikula@intel.com> Reviewed-by:
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Arnd Bergmann authored
When a symbol is selected that has extra dependencies, anything that selects it must have the same dependencies. With the added CONFIG_DRM reference from I2C_HID_CORE, this broke a couple of drivers that now also depend on DRM: WARNING: unmet direct dependencies detected for I2C_HID_CORE Depends on [m]: HID_SUPPORT [=y] && I2C_HID [=y] && (DRM [=m] || !DRM [=m]) Selected by [y]: - I2C_HID_OF [=y] && HID_SUPPORT [=y] && I2C_HID [=y] - I2C_HID_ACPI [=y] && HID_SUPPORT [=y] && I2C_HID [=y] && ACPI [=y] - I2C_HID_OF_GOODIX [=y] && HID_SUPPORT [=y] && I2C_HID [=y] && OF [=y] x86_64-linux-ld: vmlinux.o: in function `i2c_hid_core_remove': (.text+0xfc8826): undefined reference to `drm_panel_remove_follower' x86_64-linux-ld: vmlinux.o: in function `i2c_hid_core_probe': (.text+0xfc8da0): undefined reference to `drm_is_panel_follower' Add the corresponding DRM||!DRM dependencies on each one that is affected. Fixes: 96a37bfd ("HID: i2c-hid: Support being a panel follower") Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Reviewed-by:
Douglas Anderson <dianders@chromium.org> Signed-off-by:
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Thomas Zimmermann authored
Use fb_info() to print status message at the end of the probe function, which avoids decoding the devices. fb_info() works with or without an fbdev kernel device. Fixes the following error: ../drivers/video/fbdev/ps3fb.c: In function 'ps3fb_probe': ../drivers/video/fbdev/ps3fb.c:1172:40: error: 'struct fb_info' has no member named 'dev' 1172 | dev_driver_string(info->dev), dev_name(info->dev), | ^~ ../include/linux/dev_printk.h:110:37: note: in definition of macro 'dev_printk_index_wrap' 110 | _p_func(dev, fmt, ##__VA_ARGS__); \ | ^~~~~~~~~~~ ../drivers/video/fbdev/ps3fb.c:1171:9: note: in expansion of macro 'dev_info' 1171 | dev_info(info->device, "%s %s, using %u KiB of video memory\n", | ^~~~~~~~ ../drivers/video/fbdev/ps3fb.c:1172:61: error: 'struct fb_info' has no member named 'dev' 1172 | dev_driver_string(info->dev), dev_name(info->dev), | ^~ ../include/linux/dev_printk.h:110:37: note: in definition of macro 'dev_printk_index_wrap' 110 | _p_func(dev, fmt, ##__VA_ARGS__); \ | ^~~~~~~~~~~ ../drivers/video/fbdev/ps3fb.c:1171:9: note: in expansion of macro 'dev_info' 1171 | dev_info(info->device, "%s %s, using %u KiB of video memory\n", | ^~~~~~~~ Reported-by:Randy Dunlap <rdunlap@infradead.org> Closes: https://lore.kernel.org/lkml/ccc63065-2976-88ef-1211-731330bf2866@infradead.org/Signed-off-by:
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Simon Ser authored
Since commit 6b85aa68 ("drm: Enable PRIME import/export for all drivers"), import/export is always supported. Document this so that user-space knows what to expect. Signed-off-by:
Jeffrey Hugo <quic_jhugo@quicinc.com> Cc: Thomas Zimmermann <tzimmermann@suse.de> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: Jeffrey Hugo <quic_jhugo@quicinc.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20230712183156.191445-1-contact@emersion.fr
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Simon Ser authored
Convert struct drm_event to a kernel doc comment. Link to the generic DRM event types. Add a basic description of each event type. Signed-off-by:
Pekka Paalanen <pekka.paalanen@collabora.com> Acked-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20230717093032.600773-1-contact@emersion.fr
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Simon Ser authored
Mention that the connector_type_id is not stable: it depends on driver and device probe order. Signed-off-by:
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Simon Ser authored
When I originally wrote these docs, I couldn't manage to insert a cross-reference to a section. Here's how it can be done. Signed-off-by:
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GUO Zihua authored
fbcon_registered_fb and fbcon_num_registered_fb is not referred outside drivers/video/fbdev/core/fbcon.c, so make them static. Signed-off-by:
GUO Zihua <guozihua@huawei.com> Signed-off-by:
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Sui Jingfeng authored
Signed-off-by:
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Alexander Stein authored
This bridge has an interrupt line for event signaling. Add the corresponding property. Signed-off-by:
Alexander Stein <alexander.stein@ew.tq-group.com> Reviewed-by:
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by:
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Sandor Yu authored
CEC interrupt status/mask and logical address registers will be reset when device enter suspend. It will cause cec fail to work after device resume. Add CEC suspend/resume functions, reinitialize logical address registers and restore interrupt status/mask registers after resume. Signed-off-by:
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Marek Vasut authored
Add support for Innolux G156HCE-L01 15.6" 1920x1080 24bpp dual-link LVDS TFT panel. Documentation is available at [1]. The middle frequency is tuned slightly upward from 70.93 MHz to 72 MHz, otherwise the panel shows slight flicker. [1] https://www.distec.de/fileadmin/pdf/produkte/TFT-Displays/Innolux/G156HCE-L01_Rev.C3_Datasheet.pdfSigned-off-by:
Marek Vasut <marex@denx.de> Reviewed-by:
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Marek Vasut authored
Add entry for Innolux G156HCE-L01 15.6" 1920x1080 24bpp dual-link LVDS TFT panel. Documentation is available at [1]. [1] https://www.distec.de/fileadmin/pdf/produkte/TFT-Displays/Innolux/G156HCE-L01_Rev.C3_Datasheet.pdfSigned-off-by:
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Douglas Anderson authored
In commit d2aacaf0 ("drm/panel: Check for already prepared/enabled in drm_panel") the formatting for a code block was not quite right. This caused an error when building htmldocs: Documentation/gpu/todo.rst:469: ERROR: Unexpected indentation. Fix the error by using the proper syntax for a code block. Fixes: d2aacaf0 ("drm/panel: Check for already prepared/enabled in drm_panel") Reported-by:
Stephen Rothwell <sfr@canb.auug.org.au> Closes: https://lore.kernel.org/r/20230802141724.0edce253@canb.auug.org.auSigned-off-by:
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Douglas Anderson authored
In the kernel doc for the `follower_lock` member of `struct drm_panel` there was a typo where it was called `followers_lock`. This resulted in a warning when making "htmldocs": ./include/drm/drm_panel.h:270: warning: Function parameter or member 'follower_lock' not described in 'drm_panel' Fix the typo. Fixes: de087416 ("drm/panel: Add a way for other devices to follow panel state") Reported-by:
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- 02 Aug, 2023 4 commits
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Colin Ian King authored
Pointer pexec is being assigned a value however it is never read. The assignment is redundant and can be removed. Replace sizeof(*pexec) with sizeof the type and remove the declaration of pointer pexec. Signed-off-by:
Colin Ian King <colin.i.king@gmail.com> Reviewed-by:
Pranjal Ramajor Asha Kanojiya <quic_pkanojiy@quicinc.com> Reviewed-by:
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Otto Pflüger authored
Displays that are connected to the same SPI bus may share the D/C GPIO. Use GPIOD_FLAGS_BIT_NONEXCLUSIVE to allow access to the same GPIO for multiple panel-mipi-dbi instances. Exclusive access to the GPIO during transfers is ensured by the locking in drm_mipi_dbi.c. Signed-off-by:
Otto Pflüger <otto.pflueger@abscue.de> Signed-off-by:
Noralf Trønnes <noralf@tronnes.org> Link: https://patchwork.freedesktop.org/patch/msgid/20230724065654.5269-3-otto.pflueger@abscue.de
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Otto Pflüger authored
Multiple displays may be connected to the same bus and share a D/C GPIO, so the display driver needs exclusive access to the bus to ensure that it can control the D/C GPIO safely. Signed-off-by:
David Lechner <david@lechnology.com> Signed-off-by:
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Tomi Valkeinen authored
DRM bridges are not visible to the userspace and it may not be immediately clear if the chain is somehow constructed incorrectly. I have had two separate instances of a bridge driver failing to do a drm_bridge_attach() call, resulting in the bridge connector not being part of the chain. In some situations this doesn't seem to cause issues, but it will if DRM_BRIDGE_ATTACH_NO_CONNECTOR flag is used. Add a debugfs file to print the bridge chains. For me, on this TI AM62 based platform, I get the following output: encoder[39] bridge[0] type: 0, ops: 0x0 bridge[1] type: 0, ops: 0x0, OF: /bus@f0000/i2c@20000000/dsi@e:toshiba,tc358778 bridge[2] type: 0, ops: 0x3, OF: /bus@f0000/i2c@20010000/hdmi@48:lontium,lt8912b bridge[3] type: 11, ops: 0x7, OF: /hdmi-connector:hdmi-connector Tested-by:
Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by:
Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Acked-by:
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- 01 Aug, 2023 3 commits
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Douglas Anderson authored
Turning on an i2c-hid device can be a slow process. This is why i2c-hid devices use PROBE_PREFER_ASYNCHRONOUS. Unfortunately, when we're a panel follower the i2c-hid power up sequence now blocks the power on of the panel. Let's fix that by scheduling the work on the system_wq. Reviewed-by:
Maxime Ripard <mripard@kernel.org> Reviewed-by:
Benjamin Tissoires <bentiss@kernel.org> Acked-by:
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Douglas Anderson authored
As talked about in the patch ("drm/panel: Add a way for other devices to follow panel state"), we really want to keep the power states of a touchscreen and the panel it's attached to in sync with each other. In that spirit, add support to i2c-hid to be a panel follower. This will let the i2c-hid driver get informed when the panel is powered on and off. From there we can match the i2c-hid device's power state to that of the panel. NOTE: this patch specifically _doesn't_ use pm_runtime to keep track of / manage the power state of the i2c-hid device, even though my first instinct said that would be the way to go. Specific problems with using pm_runtime(): * The initial power up couldn't happen in a runtime resume function since it create sub-devices and, apparently, that's not good to do in your resume function. * Managing our power state with pm_runtime meant fighting to make the right thing happen at system suspend to prevent the system from trying to resume us only to suspend us again. While this might be able to be solved, it added complexity. Overall the code without pm_runtime() ended up being smaller and easier to understand. Reviewed-by: -
Douglas Anderson authored
In the i2c-hid remove() function we currently try to power off, depopulate our child device, and free our resources. That's OK, but... * If the i2c-hid device is on a power rail that can't turn off (either an always-on or a shared power rail) we won't try to put the device in a low power state during remove(). This probably doesn't matter for very many devices but it could be nice in some instances. * If the i2c-hid device somehow manages to generate an interrupt after we tried to power off it is conceivable that the interrupt could arrive during or after the call to hid_destroy_device() but before the call to free_irq(). That could cause a crash since our IRQ handler isn't expecting it. One could imagine this happening in the case where we couldn't turn off (see the previous bullet) or, possibly, if the interrupt line could glitch shortly after the device powered off. Let's call the suspend code during remove to avoid these issues. That will put the device into a low power state and also disable interrupts. Technically, one could consider this a "fix" of commit 4a200c3b ("HID: i2c-hid: introduce HID over i2c specification implementation"). However, since the above bullet points are more theoretical than problems seen on real systems and since the remove() of an i2c-hid touchscreen isn't terribly likely to be called in production, it's probably not worth the bother of trying to backport it. Reviewed-by:
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