- 19 Oct, 2023 13 commits
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Thomas Zimmermann authored
Initialize the instance of struct fb_ops with fbdev initializer macros for framebuffers in I/O address space. Set the read/write, draw and mmap callbacks to the correct implementation and avoid implicit defaults. Also select the necessary I/O helpers in Kconfig. Fbdev drivers sometimes rely on the callbacks being NULL for a default implementation to be invoked; hence requiring the I/O helpers to be built in any case. Setting all callbacks in all drivers explicitly will allow to make the I/O helpers optional. This benefits systems that do not use these functions. No functional changes. Signed-off-by:
Thomas Zimmermann <tzimmermann@suse.de> Acked-by:
Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230927074722.6197-14-tzimmermann@suse.de
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Thomas Zimmermann authored
Initialize the instance of struct fb_ops with fbdev initializer macros for framebuffers in I/O address space. Set the read/write, draw and mmap callbacks to the correct implementation and avoid implicit defaults. Also select the necessary I/O helpers in Kconfig. Fbdev drivers sometimes rely on the callbacks being NULL for a default implementation to be invoked; hence requiring the I/O helpers to be built in any case. Setting all callbacks in all drivers explicitly will allow to make the I/O helpers optional. This benefits systems that do not use these functions. No functional changes. Signed-off-by:
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Thomas Zimmermann authored
Initialize the instance of struct fb_ops with fbdev initializer macros for framebuffers in I/O address space. Set the read/write, draw and mmap callbacks to the correct implementation and avoid implicit defaults. Also select the necessary I/O helpers in Kconfig. Fbdev drivers sometimes rely on the callbacks being NULL for a default implementation to be invoked; hence requiring the I/O helpers to be built in any case. Setting all callbacks in all drivers explicitly will allow to make the I/O helpers optional. This benefits systems that do not use these functions. No functional changes. Signed-off-by:
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Thomas Zimmermann authored
Initialize the instance of struct fb_ops with fbdev initializer macros for framebuffers in I/O address space. Set the read/write, draw and mmap callbacks to the correct implementation and avoid implicit defaults. Also select the necessary I/O helpers in Kconfig. Fbdev drivers sometimes rely on the callbacks being NULL for a default implementation to be invoked; hence requiring the I/O helpers to be built in any case. Setting all callbacks in all drivers explicitly will allow to make the I/O helpers optional. This benefits systems that do not use these functions. No functional changes. Signed-off-by:
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Thomas Zimmermann authored
Initialize the instance of struct fb_ops with fbdev initializer macros for framebuffers in I/O address space. Set the read/write, draw and mmap callbacks to the correct implementation and avoid implicit defaults. Also select the necessary I/O helpers in Kconfig. Fbdev drivers sometimes rely on the callbacks being NULL for a default implementation to be invoked; hence requiring the I/O helpers to be built in any case. Setting all callbacks in all drivers explicitly will allow to make the I/O helpers optional. This benefits systems that do not use these functions. No functional changes. Signed-off-by:
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Thomas Zimmermann authored
Initialize the instance of struct fb_ops with fbdev initializer macros for framebuffers in I/O address space. Set the read/write, draw and mmap callbacks to the correct implementation and avoid implicit defaults. Also select the necessary I/O helpers in Kconfig. Fbdev drivers sometimes rely on the callbacks being NULL for a default implementation to be invoked; hence requiring the I/O helpers to be built in any case. Setting all callbacks in all drivers explicitly will allow to make the I/O helpers optional. This benefits systems that do not use these functions. No functional changes. Signed-off-by:
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Thomas Zimmermann authored
Initialize the instance of struct fb_ops with fbdev initializer macros for framebuffers in I/O address space. Set the read/write, draw and mmap callbacks to the correct implementation and avoid implicit defaults. Also select the necessary I/O helpers in Kconfig. Fbdev drivers sometimes rely on the callbacks being NULL for a default implementation to be invoked; hence requiring the I/O helpers to be built in any case. Setting all callbacks in all drivers explicitly will allow to make the I/O helpers optional. This benefits systems that do not use these functions. No functional changes. Signed-off-by:
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Thomas Zimmermann authored
Initialize the instance of struct fb_ops with fbdev initializer macros for framebuffers in I/O address space. Set the read/write, draw and mmap callbacks to the correct implementation and avoid implicit defaults. Also select the necessary I/O helpers in Kconfig. Fbdev drivers sometimes rely on the callbacks being NULL for a default implementation to be invoked; hence requiring the I/O helpers to be built in any case. Setting all callbacks in all drivers explicitly will allow to make the I/O helpers optional. This benefits systems that do not use these functions. No functional changes. Signed-off-by:
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Thomas Zimmermann authored
Initialize the instance of struct fb_ops with fbdev initializer macros for framebuffers in I/O address space. Set the read/write, draw and mmap callbacks to the correct implementation and avoid implicit defaults. Also select the necessary I/O helpers in Kconfig. Fbdev drivers sometimes rely on the callbacks being NULL for a default implementation to be invoked; hence requiring the I/O helpers to be built in any case. Setting all callbacks in all drivers explicitly will allow to make the I/O helpers optional. This benefits systems that do not use these functions. No functional changes. Signed-off-by:
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Thomas Zimmermann authored
Initialize the instance of struct fb_ops with fbdev initializer macros for framebuffers in I/O address space. Set the read/write, draw and mmap callbacks to the correct implementation and avoid implicit defaults. Also select the necessary I/O helpers in Kconfig. Fbdev drivers sometimes rely on the callbacks being NULL for a default implementation to be invoked; hence requiring the I/O helpers to be built in any case. Setting all callbacks in all drivers explicitly will allow to make the I/O helpers optional. This benefits systems that do not use these functions. No functional changes. Signed-off-by:
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Thomas Zimmermann authored
Initialize the instance of struct fb_ops with fbdev initializer macros for framebuffers in I/O address space. Set the read/write, draw and mmap callbacks to the correct implementation and avoid implicit defaults. Also select the necessary I/O helpers in Kconfig. Fbdev drivers sometimes rely on the callbacks being NULL for a default implementation to be invoked; hence requiring the I/O helpers to be built in any case. Setting all callbacks in all drivers explicitly will allow to make the I/O helpers optional. This benefits systems that do not use these functions. No functional changes. Signed-off-by:
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Thomas Zimmermann authored
Initialize the instance of struct fb_ops with fbdev initializer macros for framebuffers in I/O address space. Set the read/write, draw and mmap callbacks to the correct implementation and avoid implicit defaults. Also select the necessary I/O helpers in Kconfig. Fbdev drivers sometimes rely on the callbacks being NULL for a default implementation to be invoked; hence requiring the I/O helpers to be built in any case. Setting all callbacks in all drivers explicitly will allow to make the I/O helpers optional. This benefits systems that do not use these functions. No functional changes. Signed-off-by:
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Thomas Zimmermann authored
Provide helpers for accessing I/O memory in a helper module. The fbdev core uses these helpers, so select the module unconditionally for fbdev. Drivers will later be able to select the module individually and the helpers will become optional. Signed-off-by:
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- 18 Oct, 2023 6 commits
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Javier Martinez Canillas authored
Add a Device Tree binding schema for the OLED panels based on the Solomon SSD132x family of controllers. Signed-off-by:
Rob Herring <robh@kernel.org> Acked-by:
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Javier Martinez Canillas authored
There are DT properties that can be shared across different Solomon OLED Display Controller families. Split them into a separate common schema to avoid these properties to be duplicated in different DT bindings schemas. Suggested-by:
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Javier Martinez Canillas authored
The Solomon SSD132x controllers (such as the SSD1322, SSD1325 and SSD1327) are used by 16 grayscale dot matrix OLED panels, extend the driver to also support this chip family. Instead adding an indirection level to allow the same modesetting pipeline to be used by both controller families, add another pipeline for SSD132x. This leads to some code duplication but it makes the driver easier to read and reason about. Once other controller families are added (e.g: SSD133x), some common code can be factored out in driver helpers to be shared by the different families. But that can be done later once these patterns emerge. Signed-off-by:
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Javier Martinez Canillas authored
There are some commands that are shared between the SSD130x and SSD132x controller families, define these as a common SSD13XX set of commands. Signed-off-by:
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Javier Martinez Canillas authored
To allow the driver to have a per Solomon display controller modesetting pipeline and support aother controller families besides SSD130x. Signed-off-by:
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Javier Martinez Canillas authored
This deemed useful to avoid hardcoding a page height and allow to support other Solomon controller families, but dividing the screen in pages seems to be something that is specific to the SSD130x chip family. For example, SSD132x chip family divides the screen in segments (columns) and common outputs (rows), so the concept of screen pages does not exist for the SSD132x family. Let's drop this field from the device info struct and just use a constant SSD130X_PAGE_HEIGHT macro to define the page height. While being there, replace hardcoded 8 values in places where it is used as the page height. Signed-off-by:
Geert Uytterhoeven <geert+renesas@glider.be> Acked-by:
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- 17 Oct, 2023 2 commits
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Thomas Hellström authored
Dual-licence in order to make it possible for other non-GPL os'es to re-implement the code. The use of EXPORT_SYMBOL_GPL() is intentionally left untouched to prevent use of drm_gpuvm as a proxy for non-GPL drivers to access GPL-only kernel symbols. Much of the ideas and algorithms used in the drm_gpuvm code is already present in one way or another in MIT-licensed code. Cc: Danilo Krummrich <dakr@redhat.com> Cc: airlied@gmail.com Cc: daniel@ffwll.ch Cc: linux-kernel@vger.kernel.org Signed-off-by:
Thomas Hellström <thomas.hellstrom@linux.intel.com> Acked-by:
Danilo Krummrich <dakr@redhat.com> Reviewed-by:
Francois Dugast <francois.dugast@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231010142725.8920-1-thomas.hellstrom@linux.intel.com
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Thomas Hellström authored
Add a motivation for and description of asynchronous VM_BIND operation v2: - Fix typos (Nirmoy Das) - Improve the description of a memory fence (Oak Zeng) - Add a reference to the document in the Xe RFC. - Add pointers to sample uAPI suggestions v3: - Address review comments (Danilo Krummrich) - Formatting fixes v4: - Address typos (Francois Dugast) - Explain why in-fences are not allowed for VM_BIND operations for long- running workloads (Matthew Brost) v5: - More typo- and style fixing - Further clarify the implications of disallowing in-fences for VM_BIND operations for long-running workloads (Matthew Brost) v6: - Point out that a gpu_vm is a virtual GPU Address space. (Danilo Krummrich) - For an explanation of dma-fences point to the dma-fence documentation. (Paulo Zanoni) - Clarify that VM_BIND errors are reported synchronously. (Paulo Zanoni) - Use an rst doc reference when pointing to the async vm_bind document from the xe merge plan. - Add the VM_BIND documentation to the drm documentation table-of-content, using an intermediate "Misc DRM driver uAPI- and feature implementation guidelines" v7: - Update the error handling documentation to remove the VM error state. v8: - Clarify error handling and difference in operation support between async VM_BIND and sync VM_BIND. (Paulo Zanoni) - Update the sample uAPI with a self-contained example. (Paulo Zanoni) Cc: Paulo R Zanoni <paulo.r.zanoni@intel.com> Signed-off-by:
Nirmoy Das <nirmoy.das@intel.com> Reviewed-by:
Matthew Brost <matthew.brost@intel.com> Reviewed-by:
Rodrigo Vivi <rodrigo.vivi@intel.com> Reviewed-by:
Paulo Zanoni <paulo.r.zanoni@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20231012132552.20196-1-thomas.hellstrom@linux.intel.com
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- 16 Oct, 2023 19 commits
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Chris Morgan authored
The Powkiddy RGB30 4 inch panel is a 4 inch 720x720 DSI panel used in the Powkiddy RGB30 handheld gaming device. Add support for it. Signed-off-by:
Chris Morgan <macromorgan@hotmail.com> Signed-off-by:
Heiko Stuebner <heiko@sntech.de> Link: https://patchwork.freedesktop.org/patch/msgid/20231013183918.225666-4-macroalpha82@gmail.com
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Chris Morgan authored
The Powkiddy RGB30 panel is a 4 inch 720x720 MIPI-DSI LCD panel. It appears to be based on the ST7703 LCD controller (this is assumed from the init sequence similarity between this and other displays). Powkiddy would not share the part number or name for the display from the bill of materials and there were no obvious external markings, so name the panel for the device (Powkiddy RGB30). Signed-off-by:
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by:
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Chris Morgan authored
Document Powkiddy (https://powkiddy.com/). Signed-off-by:
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Andy Yan authored
There are 8 layers on rk3588, so a fix defined macro is not appropriate. Signed-off-by:
Andy Yan <andy.yan@rock-chips.com> Reviewed-by:
Sascha Hauer <s.hauer@pengutronix.de> Signed-off-by:
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Andy Yan authored
These structs are undefined and un used. Fixes: 604be855 ("drm/rockchip: Add VOP2 driver") Signed-off-by:
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Dan Carpenter authored
The "ret" variable is declared as ssize_t and it can hold negative error codes but the "rk_obj->base.size" variable is type size_t. This means that when we compare them, they are both type promoted to size_t and the negative error code becomes a high unsigned value and is treated as success. Add a cast to fix this. Fixes: 38f993b7 ("drm/rockchip: Do not use DMA mapping API if attached to IOMMU domain") Signed-off-by:
Dan Carpenter <dan.carpenter@linaro.org> Signed-off-by:
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Dmitry Baryshkov authored
If DSI host attachment fails, the LT9611UXC driver will remove the bridge without ensuring that there is no outstanding HPD work being done. In rare cases this can result in the warnings regarding the mutex being incorrect. Fix this by forcebly freing IRQ and flushing the work. DEBUG_LOCKS_WARN_ON(lock->magic != lock) WARNING: CPU: 0 PID: 10 at kernel/locking/mutex.c:582 __mutex_lock+0x468/0x77c Modules linked in: CPU: 0 PID: 10 Comm: kworker/0:1 Tainted: G U 6.6.0-rc5-next-20231011-gd81f81c2b682-dirty #1206 Hardware name: Qualcomm Technologies, Inc. Robotics RB5 (DT) Workqueue: events lt9611uxc_hpd_work pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __mutex_lock+0x468/0x77c lr : __mutex_lock+0x468/0x77c sp : ffff8000800a3c70 x29: ffff8000800a3c70 x28: 0000000000000000 x27: ffffd595fe333000 x26: ffff7c2f0002c005 x25: ffffd595ff1b3000 x24: ffffd595fccda5a0 x23: 0000000000000000 x22: 0000000000000002 x21: ffff7c2f056d91c8 x20: 0000000000000000 x19: ffff7c2f056d91c8 x18: fffffffffffe8db0 x17: 000000040044ffff x16: 005000f2b5503510 x15: 0000000000000000 x14: 000000000006efb8 x13: 0000000000000000 x12: 0000000000000037 x11: 0000000000000001 x10: 0000000000001470 x9 : ffff8000800a3ae0 x8 : ffff7c2f0027f8d0 x7 : ffff7c2f0027e400 x6 : ffffd595fc702b54 x5 : 0000000000000000 x4 : ffff8000800a0000 x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : ffff7c2f0027e400 Call trace: __mutex_lock+0x468/0x77c mutex_lock_nested+0x24/0x30 drm_bridge_hpd_notify+0x2c/0x5c lt9611uxc_hpd_work+0x6c/0x80 process_one_work+0x1ec/0x51c worker_thread+0x1ec/0x3e4 kthread+0x120/0x124 ret_from_fork+0x10/0x20 irq event stamp: 15799 hardirqs last enabled at (15799): [<ffffd595fc702ba4>] finish_task_switch.isra.0+0xa8/0x278 hardirqs last disabled at (15798): [<ffffd595fd5a1580>] __schedule+0x7b8/0xbd8 softirqs last enabled at (15794): [<ffffd595fc690698>] __do_softirq+0x498/0x4e0 softirqs last disabled at (15771): [<ffffd595fc69615c>] ____do_softirq+0x10/0x1c Fixes: bc6fa867 ("drm/bridge/lontium-lt9611uxc: move HPD notification out of IRQ handler") Signed-off-by:
Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Reviewed-by:
Robert Foss <rfoss@kernel.org> Signed-off-by:
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Liu Ying authored
Freescale i.MX93 SoC embeds a Synopsys Designware MIPI DSI host controller and a Synopsys Designware MIPI DPHY. Some configurations and extensions to them are controlled by i.MX93 media blk-ctrl. Add a DRM bridge for i.MX93 MIPI DSI by using existing DW MIPI DSI bridge helpers and implementing i.MX93 MIPI DSI specific extensions. Signed-off-by:
Liu Ying <victor.liu@nxp.com> Reviewed-by:
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Liu Ying authored
Freescale i.MX93 SoC embeds a Synopsys Designware MIPI DSI host controller and a Synopsys Designware MIPI DPHY. Some configurations and extensions to them are controlled by i.MX93 media blk-ctrl. Signed-off-by:
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Liu Ying authored
According to Synopsys DW MIPI DSI host databook, HSTX and LPRX timeout contention detections are measured in TO_CLK_DIVISION cycles. However, the current driver programs magic values to TO_CLK_DIVISION, HSTX_TO_CNT and LPRX_TO_CNT register fields, which makes timeout error event wrongly happen for some video modes, at least for the typical 1920x1080p@60 video mode read from a HDMI monitor driven by ADV7535 DSI to HDMI bridge. While at it, the current driver doesn't enable interrupt to handle or complain about the error status, so true error just happens silently except for display distortions by visual check. Disable the timeout check by setting those timeout register fields to zero for now until someone comes along with better computations for the timeout values. Although the databook doesn't mention what happens when they are set to zero, it turns out the false error doesn't happen for the 1920x1080p@60 video mode at least. Signed-off-by:
Neil Armstrong <neil.armstrong@linaro.org> Signed-off-by:
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Liu Ying authored
According to Synopsys support channel, each region of HSA, HBP and HFP must have minimum number of 10 bytes where constant 4 bytes are for HSS or HSE and 6 bytes are for blanking packet(header + CRC). Hence, the below table comes in. +------------+----------+-------+ | data lanes | min lbcc | bytes | +------------+----------+-------+ | 1 | 10 | 1*10 | +------------+----------+-------+ | 2 | 5 | 2*5 | +------------+----------+-------+ | 3 | 4 | 3*4 | +------------+----------+-------+ | 4 | 3 | 4*3 | +------------+----------+-------+ Implement the minimum lbcc numbers to make sure that the values programmed into DSI_VID_HSA_TIME and DSI_VID_HBP_TIME registers meet the minimum number requirement. For DSI_VID_HLINE_TIME register, it seems that the value programmed should be based on mode->htotal as-is, instead of sum up HSA, HBP, HFP and HDISPLAY. This helps the case where Raydium RM67191 DSI panel is connected, since it's video timing for hsync length is only 2 pixels and without this patch the programmed value for DSI_VID_HSA_TIME is only 2 with 4 data lanes. Signed-off-by:
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Liu Ying authored
To get better accuration, use pixel clock rate to calculate lbcc instead of lane_mbps since the pixel clock rate is in KHz while lane_mbps is in MHz. Without this, distorted image can be seen on a HDMI monitor connected with i.MX93 11x11 EVK through ADV7535 DSI to HDMI bridge in 1920x1080p@60 video mode. Signed-off-by:
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Liu Ying authored
Vendor drivers may need to fixup mode due to pixel clock tree limitation, so introduce the ->mode_fixup() callcack to struct dw_mipi_dsi_plat_data and call it at atomic check stage if available. Signed-off-by:
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Liu Ying authored
The DATAEN_ACTIVE_LOW bit in DSI_DPI_CFG_POL register is set to zero, so set the DRM_BUS_FLAG_DE_HIGH flag in input_bus_cfg.flags. It appears that the DRM_BUS_FLAG_PIXDATA_SAMPLE_NEGEDGE flag also makes sense, so set it in input_bus_cfg.flags too. With this patch, the flags set by drm_atomic_bridge_propagate_bus_flags() are overridden (see comment in that function) in case any downstream bridges propagates invalid flags to this bridge. A real problematic case is to connect a RM67191 MIPI DSI panel whose driver sets DRM_BUS_FLAG_DE_LOW and DRM_BUS_FLAG_PIXDATA_SAMPLE_POSEDGE bus flags. Signed-off-by:
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Liu Ying authored
Introduce ->get_input_bus_fmts() callback to struct dw_mipi_dsi_plat_data so that vendor drivers can implement specific methods to get input bus formats for Synopsys DW MIPI DSI. While at it, implement a generic callback for ->atomic_get_input_bus_fmts(), where we try to get the input bus formats through pdata->get_input_bus_fmts() first. If it's unavailable, fall back to the only format - MEDIA_BUS_FMT_FIXED, which matches the default behavior if ->atomic_get_input_bus_fmts() is not implemented as ->atomic_get_input_bus_fmts()'s kerneldoc indicates. Signed-off-by:
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Liu Ying authored
Add dw_mipi_dsi_get_bridge() helper so that it can be used by vendor drivers which implement vendor specific extensions to Synopsys DW MIPI DSI. Signed-off-by:
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Biju Das authored
As per spec, it is allowed to pulse the HPD signal to indicate that the EDID information has changed. Some monitors do this when they wake up from standby or are enabled. When the HPD goes low the adv7511 is reset and the outputs are disabled which might cause the monitor to go to standby again. To avoid this we ignore the HPD pin for the first few seconds after enabling the output. On the other hand, adv7535 require to enable HPD Override bit for proper HPD. Add hpd_override_enable variable to struct adv7511_chip_info to handle this scenario. Signed-off-by:
Biju Das <biju.das.jz@bp.renesas.com> Reviewed-by:
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Biju Das authored
The ADV7511 needs link configuration whereas ADV75{33,35} does not need it. Add a variable link_config to struct adv7511_chip_info to handle this difference. Signed-off-by:Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by:
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Biju Das authored
The ADV7533 and ADV7535 have DSI support. Add a variable has_dsi to struct adv7511_chip_info for handling configuration related to DSI. Signed-off-by:
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