dri-devel April 2021

dri-devel@lists.freedesktop.org

317 participants
715 discussions

[PATCH v3] drm/ttm: fix error handling if no BO can be swapped out
by Shiwu Zhang 22 Apr '21

22 Apr '21

In case that all pre-allocated BOs are busy, just continue to populate BOs since likely half of system memory in total is still free. Signed-off-by: Shiwu Zhang <shiwu.zhang(a)amd.com> --- drivers/gpu/drm/ttm/ttm_device.c | 2 +- drivers/gpu/drm/ttm/ttm_tt.c | 2 ++ 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/ttm/ttm_device.c b/drivers/gpu/drm/ttm/ttm_device.c index 1f2024164d72..a48fe4dccd61 100644 --- a/drivers/gpu/drm/ttm/ttm_device.c +++ b/drivers/gpu/drm/ttm/ttm_device.c @@ -112,7 +112,7 @@ int ttm_global_swapout(struct ttm_operation_ctx *ctx, gfp_t gfp_flags) { struct ttm_global *glob = &ttm_glob; struct ttm_device *bdev; - int ret = -EBUSY; + int ret; mutex_lock(&ttm_global_mutex); list_for_each_entry(bdev, &glob->device_list, device_list) { diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c index 48c407cff112..539e0232cb3b 100644 --- a/drivers/gpu/drm/ttm/ttm_tt.c +++ b/drivers/gpu/drm/ttm/ttm_tt.c @@ -329,6 +329,8 @@ int ttm_tt_populate(struct ttm_device *bdev, ttm_dma32_pages_limit) { ret = ttm_global_swapout(ctx, GFP_KERNEL); + if (ret == 0) + break; if (ret < 0) goto error; } -- 2.17.1

2 1

[PATCH v2] drm/ttm: fix error handling if no BO can be swapped out
by Shiwu Zhang 22 Apr '21

22 Apr '21

Signed-off-by: Shiwu Zhang <shiwu.zhang(a)amd.com> --- drivers/gpu/drm/ttm/ttm_device.c | 2 +- drivers/gpu/drm/ttm/ttm_tt.c | 2 ++ 2 files changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/ttm/ttm_device.c b/drivers/gpu/drm/ttm/ttm_device.c index 1f2024164d72..5dc92b056f0a 100644 --- a/drivers/gpu/drm/ttm/ttm_device.c +++ b/drivers/gpu/drm/ttm/ttm_device.c @@ -112,7 +112,7 @@ int ttm_global_swapout(struct ttm_operation_ctx *ctx, gfp_t gfp_flags) { struct ttm_global *glob = &ttm_glob; struct ttm_device *bdev; - int ret = -EBUSY; + int ret = 0; mutex_lock(&ttm_global_mutex); list_for_each_entry(bdev, &glob->device_list, device_list) { diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c index 48c407cff112..539e0232cb3b 100644 --- a/drivers/gpu/drm/ttm/ttm_tt.c +++ b/drivers/gpu/drm/ttm/ttm_tt.c @@ -329,6 +329,8 @@ int ttm_tt_populate(struct ttm_device *bdev, ttm_dma32_pages_limit) { ret = ttm_global_swapout(ctx, GFP_KERNEL); + if (ret == 0) + break; if (ret < 0) goto error; } -- 2.17.1

4 4

[PATCH] efifb: Check efifb_pci_dev before using it
by Kai-Heng Feng 22 Apr '21

22 Apr '21

On some platforms like Hyper-V and RPi4 with UEFI firmware, efifb is not a PCI device. So make sure efifb_pci_dev is found before using it. Fixes: a6c0fd3d5a8b ("efifb: Ensure graphics device for efifb stays at PCI D0") BugLink: https://bugs.launchpad.net/bugs/1922403 Signed-off-by: Kai-Heng Feng <kai.heng.feng(a)canonical.com> --- drivers/video/fbdev/efifb.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/video/fbdev/efifb.c b/drivers/video/fbdev/efifb.c index f58a545b3bf3..8ea8f079cde2 100644 --- a/drivers/video/fbdev/efifb.c +++ b/drivers/video/fbdev/efifb.c @@ -575,7 +575,8 @@ static int efifb_probe(struct platform_device *dev) goto err_fb_dealoc; } fb_info(info, "%s frame buffer device\n", info->fix.id); - pm_runtime_get_sync(&efifb_pci_dev->dev); + if (efifb_pci_dev) + pm_runtime_get_sync(&efifb_pci_dev->dev); return 0; err_fb_dealoc: @@ -602,7 +603,8 @@ static int efifb_remove(struct platform_device *pdev) unregister_framebuffer(info); sysfs_remove_groups(&pdev->dev.kobj, efifb_groups); framebuffer_release(info); - pm_runtime_put(&efifb_pci_dev->dev); + if (efifb_pci_dev) + pm_runtime_put(&efifb_pci_dev->dev); return 0; } -- 2.30.2

4 4

[PATCH v3 0/2] drm/amd/amdgpu/amdgpu_drv.c: Replace drm_modeset_*_all() with DRM_MODESET_LOCK_ALL_*()
by Fabio M. De Francesco 22 Apr '21

22 Apr '21

Replace the deprecated API with new helpers, according to the TODO list of the DRM subsystem. The new API has been introduced with commit b7ea04d299c7: DRM_MODESET_LOCK_ALL_BEGIN() simplifies grabbing all modeset locks using a local context. This has the advantage of reducing boilerplate. The work is carried out in two consecutive logical steps: the first patch converts the code to use drm_modeset_lock_all(), then the second does the final replace with DRM_MODESET_LOCK_ALL_*(). Changes from v2: The work is split in two consecutive logical steps. Changes from v1: Added further information to the commit message. Fabio M. De Francesco (2): drm/amd/amdgpu/amdgpu_drv.c: Replace drm_modeset_lock_all() with drm_modeset_lock_all_ctx() drm/amd/amdgpu/amdgpu_drv.c: Replace drm_modeset_*_all_ctx() with DRM_MODESET_LOCK_ALL_*() drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) -- 2.31.1

2 3

[PATCH 0/3] drm: Use tabs for code indents
by Beatriz Martins de Carvalho 22 Apr '21

22 Apr '21

Remove space and use tabs for indent the code to follow the Linux kernel coding conventions. Problem found by checkpatch Beatriz Martins de Carvalho (3): drm: drm_atomic_uapi.c: Use tabs for code indents drm: drm_blend.c: Use tabs for code indents drm: drm_connector.c: Use tabs for code indents drivers/gpu/drm/drm_atomic_uapi.c | 6 ++--- drivers/gpu/drm/drm_blend.c | 4 ++-- drivers/gpu/drm/drm_connector.c | 38 +++++++++++++++---------------- 3 files changed, 24 insertions(+), 24 deletions(-) -- 2.25.1

2 4

[PATCH] drm/ttm: fix error handling if no BO can be swapped out
by Shiwu Zhang 22 Apr '21

22 Apr '21

In case that all pre-allocated BOs are busy, just continue to populate BOs since likely half of system memory in total is still free. Signed-off-by: Shiwu Zhang <shiwu.zhang(a)amd.com> --- drivers/gpu/drm/ttm/ttm_device.c | 4 ++-- drivers/gpu/drm/ttm/ttm_tt.c | 2 ++ 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/ttm/ttm_device.c b/drivers/gpu/drm/ttm/ttm_device.c index 1f2024164d72..0200709db9be 100644 --- a/drivers/gpu/drm/ttm/ttm_device.c +++ b/drivers/gpu/drm/ttm/ttm_device.c @@ -133,7 +133,7 @@ int ttm_device_swapout(struct ttm_device *bdev, struct ttm_operation_ctx *ctx, struct ttm_resource_manager *man; struct ttm_buffer_object *bo; unsigned i, j; - int ret; + int ret=-EBUSY; spin_lock(&bdev->lru_lock); for (i = TTM_PL_SYSTEM; i < TTM_NUM_MEM_TYPES; ++i) { @@ -161,7 +161,7 @@ int ttm_device_swapout(struct ttm_device *bdev, struct ttm_operation_ctx *ctx, } } spin_unlock(&bdev->lru_lock); - return 0; + return ret; } EXPORT_SYMBOL(ttm_device_swapout); diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c index 48c407cff112..4e1e06a04428 100644 --- a/drivers/gpu/drm/ttm/ttm_tt.c +++ b/drivers/gpu/drm/ttm/ttm_tt.c @@ -329,6 +329,8 @@ int ttm_tt_populate(struct ttm_device *bdev, ttm_dma32_pages_limit) { ret = ttm_global_swapout(ctx, GFP_KERNEL); + if (ret == -EBUSY) + break; if (ret < 0) goto error; } -- 2.17.1

3 2

[PATCH v3 1/2] dt-bindings: display: bridge: Add bindings for SN65DSI83/84/85
by Jagan Teki 22 Apr '21

22 Apr '21

SN65DSI83/84/85 devices are MIPI DSI to LVDS based bridge controller IC's from Texas Instruments. SN65DSI83 - Single Channel DSI to Single-link LVDS bridge SN65DSI84 - Single Channel DSI to Dual-link LVDS bridge SN65DSI85 - Dual Channel DSI to Dual-link LVDS bridge Right now the bridge driver is supporting Channel A with single link, so dt-bindings documented according to it. Cc: Marek Vasut <marex(a)denx.de> Signed-off-by: Jagan Teki <jagan(a)amarulasolutions.com> --- Changes for v3: - fixed Rob comments - updated commit message and file name to support all chip variants Changes for v2: - none .../bindings/display/bridge/ti,sn65dsi8x.yaml | 122 ++++++++++++++++++ 1 file changed, 122 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/bridge/ti,sn65dsi8x.yaml diff --git a/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi8x.yaml b/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi8x.yaml new file mode 100644 index 000000000000..7f9f8cd6e786 --- /dev/null +++ b/Documentation/devicetree/bindings/display/bridge/ti,sn65dsi8x.yaml @@ -0,0 +1,122 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/bridge/ti,sn65dsi8x.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: TI SN65DSI83/84/85 MIPI DSI to LVDS bridge bindings + +maintainers: + - Jagan Teki <jagan(a)amarulasolutions.com> + +description: | + SN65DSI83/84/85 devices are MIPI DSI to LVDS based bridge controller + IC's from Texas Instruments. + + SN65DSI83 - Single Channel DSI to Single-link LVDS bridge + SN65DSI84 - Single Channel DSI to Dual-link LVDS bridge + SN65DSI85 - Dual Channel DSI to Dual-link LVDS bridge + + Bridge decodes MIPI DSI 18bpp RGB666 and 240bpp RG888 packets and + converts the formatted video data stream to a FlatLink compatible + LVDS output operating at pixel clocks operating from 25 MHx to + 154 MHz. + +properties: + compatible: + enum: + - ti,sn65dsi83 + - ti,sn65dsi84 + + reg: + const: 0x2c + + enable-gpios: + maxItems: 1 + description: GPIO specifier for bridge enable pin (active high). + + ports: + $ref: /schemas/graph.yaml#/properties/ports + + properties: + port@0: + $ref: /schemas/graph.yaml#/properties/port + description: | + DSI Input. The remote endpoint phandle should be a + reference to a valid mipi_dsi_host device node. + + port@1: + $ref: /schemas/graph.yaml#/properties/port + description: | + Video port for LVDS output (panel or connector). + + required: + - port@0 + - port@1 + +required: + - compatible + - reg + - enable-gpios + - ports + +additionalProperties: false + +examples: + - | + #include <dt-bindings/gpio/gpio.h> + + dsi { + #address-cells = <1>; + #size-cells = <0>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + dsi_in: endpoint { + remote-endpoint = <&ltdc_ep0_out>; + }; + }; + + port@1 { + reg = <1>; + dsi_out: endpoint { + remote-endpoint = <&bridge_in>; + data-lanes = <0 1>; + }; + }; + }; + }; + + i2c6 { + #address-cells = <1>; + #size-cells = <0>; + + bridge@2c { + compatible = "ti,sn65dsi84"; + reg = <0x2c>; + enable-gpios = <&gpiof 15 GPIO_ACTIVE_HIGH>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + bridge_in: endpoint { + remote-endpoint = <&dsi_out>; + }; + }; + + port@1 { + reg = <1>; + bridge_out: endpoint { + remote-endpoint = <&panel_in_lvds>; + }; + }; + }; + }; + }; -- 2.25.1

6 13

[PATCH] ASoC: fsl: imx-pcm-dma: Don't request dma channel in probe
by Shengjiu Wang 22 Apr '21

22 Apr '21

There are two requirements that we need to move the request of dma channel from probe to open. - When dma device binds with power-domains, the power will be enabled when we request dma channel. If the request of dma channel happen on probe, then the power-domains will be always enabled after kernel boot up, which is not good for power saving, so we need to move the request of dma channel to .open(); - With FE-BE case, if the dma channel is requested in probe, then there will be below issue, which is caused by that the dma channel will be requested duplicately [ 638.906268] sysfs: cannot create duplicate filename '/devices/soc0/soc/2000000.bus/2000000.spba-bus/2024000.esai/dma:tx' [ 638.919061] CPU: 1 PID: 673 Comm: aplay Not tainted 5.7.0-rc1-12956-gfc64b2585593 #287 [ 638.927113] Hardware name: Freescale i.MX6 Quad/DualLite (Device Tree) [ 638.933690] [<c0110dd8>] (unwind_backtrace) from [<c010b8ec>] (show_stack+0x10/0x14) [ 638.941464] [<c010b8ec>] (show_stack) from [<c0557fc0>] (dump_stack+0xe4/0x118) [ 638.948808] [<c0557fc0>] (dump_stack) from [<c032aeb4>] (sysfs_warn_dup+0x50/0x64) [ 638.956406] [<c032aeb4>] (sysfs_warn_dup) from [<c032b1a8>] (sysfs_do_create_link_sd+0xc8/0xd4) [ 638.965134] [<c032b1a8>] (sysfs_do_create_link_sd) from [<c05dc668>] (dma_request_chan+0xb0/0x210) [ 638.974120] [<c05dc668>] (dma_request_chan) from [<c05dc7d0>] (dma_request_slave_channel+0x8/0x14) [ 638.983111] [<c05dc7d0>] (dma_request_slave_channel) from [<c09d5548>] (fsl_asrc_dma_hw_params+0x1e0/0x438) [ 638.992881] [<c09d5548>] (fsl_asrc_dma_hw_params) from [<c09c1654>] (soc_pcm_hw_params+0x4a0/0x6a8) [ 639.001952] [<c09c1654>] (soc_pcm_hw_params) from [<c09c39d4>] (dpcm_fe_dai_hw_params+0x70/0xe4) [ 639.010765] [<c09c39d4>] (dpcm_fe_dai_hw_params) from [<c099b274>] (snd_pcm_hw_params+0x158/0x418) [ 639.019750] [<c099b274>] (snd_pcm_hw_params) from [<c099c5a0>] (snd_pcm_ioctl+0x734/0x183c) [ 639.028129] [<c099c5a0>] (snd_pcm_ioctl) from [<c029ff94>] (ksys_ioctl+0x2ac/0xb98) [ 639.035812] [<c029ff94>] (ksys_ioctl) from [<c0100080>] (ret_fast_syscall+0x0/0x28) [ 639.043490] Exception stack(0xec529fa8 to 0xec529ff0) [ 639.048565] 9fa0: bee84650 01321870 00000004 c25c4111 bee84650 0002000f [ 639.056766] 9fc0: bee84650 01321870 01321820 00000036 00001f40 00000000 0002c2f8 00000003 [ 639.064964] 9fe0: b6f483fc bee8451c b6ee2655 b6e1dcf8 [ 639.070339] fsl-esai-dai 2024000.esai: Cannot create DMA dma:tx symlink Signed-off-by: Shengjiu Wang <shengjiu.wang(a)nxp.com> --- sound/soc/fsl/imx-pcm-dma.c | 173 +++++++++++++++++++++++++++++++++--- 1 file changed, 159 insertions(+), 14 deletions(-) diff --git a/sound/soc/fsl/imx-pcm-dma.c b/sound/soc/fsl/imx-pcm-dma.c index 04a9bc749016..dae53b384df4 100644 --- a/sound/soc/fsl/imx-pcm-dma.c +++ b/sound/soc/fsl/imx-pcm-dma.c @@ -11,6 +11,7 @@ #include <linux/dmaengine.h> #include <linux/types.h> #include <linux/module.h> +#include <linux/dma-mapping.h> #include <sound/core.h> #include <sound/pcm.h> @@ -29,24 +30,168 @@ static bool filter(struct dma_chan *chan, void *param) return true; } -static const struct snd_dmaengine_pcm_config imx_dmaengine_pcm_config = { - .prepare_slave_config = snd_dmaengine_pcm_prepare_slave_config, - .compat_filter_fn = filter, -}; +static int imx_pcm_hw_params(struct snd_soc_component *component, + struct snd_pcm_substream *substream, + struct snd_pcm_hw_params *params) +{ + struct snd_pcm_runtime *runtime = substream->runtime; + struct snd_soc_pcm_runtime *rtd = substream->private_data; + struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); + struct snd_dmaengine_dai_dma_data *dma_data; + struct dma_slave_config config; + struct dma_chan *chan; + int ret = 0; -int imx_pcm_dma_init(struct platform_device *pdev, size_t size) + snd_pcm_set_runtime_buffer(substream, &substream->dma_buffer); + runtime->dma_bytes = params_buffer_bytes(params); + + chan = snd_dmaengine_pcm_get_chan(substream); + if (!chan) + return -EINVAL; + + ret = snd_hwparams_to_dma_slave_config(substream, params, &config); + if (ret) + return ret; + + dma_data = snd_soc_dai_get_dma_data(cpu_dai, substream); + if (!dma_data) + return -EINVAL; + + snd_dmaengine_pcm_set_config_from_dai_data(substream, + dma_data, + &config); + return dmaengine_slave_config(chan, &config); +} + +static int imx_pcm_hw_free(struct snd_soc_component *component, + struct snd_pcm_substream *substream) { - struct snd_dmaengine_pcm_config *config; + snd_pcm_set_runtime_buffer(substream, NULL); + return 0; +} + +static snd_pcm_uframes_t imx_pcm_pointer(struct snd_soc_component *component, + struct snd_pcm_substream *substream) +{ + return snd_dmaengine_pcm_pointer(substream); +} + +static int imx_pcm_trigger(struct snd_soc_component *component, + struct snd_pcm_substream *substream, int cmd) +{ + return snd_dmaengine_pcm_trigger(substream, cmd); +} + +static int imx_pcm_open(struct snd_soc_component *component, + struct snd_pcm_substream *substream) +{ + struct snd_soc_pcm_runtime *rtd = substream->private_data; + bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK; + struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0); + struct snd_dmaengine_dai_dma_data *dma_data; + struct device *dev = component->dev; + struct snd_pcm_hardware hw; + struct dma_chan *chan; + int ret; + + ret = snd_pcm_hw_constraint_integer(substream->runtime, + SNDRV_PCM_HW_PARAM_PERIODS); + if (ret < 0) { + dev_err(dev, "failed to set pcm hw params periods\n"); + return ret; + } + + dma_data = snd_soc_dai_get_dma_data(cpu_dai, substream); + if (!dma_data) + return -EINVAL; + + chan = dma_request_slave_channel(cpu_dai->dev, tx ? "tx" : "rx"); + if (!chan) { + /* Try to request channel using compat_filter_fn */ + chan = snd_dmaengine_pcm_request_channel(filter, + dma_data->filter_data); + if (!chan) + return -ENXIO; + } - config = devm_kzalloc(&pdev->dev, - sizeof(struct snd_dmaengine_pcm_config), GFP_KERNEL); - if (!config) - return -ENOMEM; - *config = imx_dmaengine_pcm_config; + ret = snd_dmaengine_pcm_open(substream, chan); + if (ret) + goto pcm_open_fail; - return devm_snd_dmaengine_pcm_register(&pdev->dev, - config, - SND_DMAENGINE_PCM_FLAG_COMPAT); + memset(&hw, 0, sizeof(hw)); + hw.info = SNDRV_PCM_INFO_MMAP | SNDRV_PCM_INFO_MMAP_VALID | + SNDRV_PCM_INFO_INTERLEAVED; + hw.periods_min = 2; + hw.periods_max = UINT_MAX; + hw.period_bytes_min = 256; + hw.period_bytes_max = dma_get_max_seg_size(chan->device->dev); + hw.buffer_bytes_max = IMX_DEFAULT_DMABUF_SIZE; + hw.fifo_size = dma_data->fifo_size; + + /* Refine the hw according to caps of DMA. */ + ret = snd_dmaengine_pcm_refine_runtime_hwparams(substream, + dma_data, + &hw, + chan); + if (ret < 0) + goto refine_runtime_hwparams_fail; + + snd_soc_set_runtime_hwparams(substream, &hw); + + /* Support allocate memory from IRAM */ + ret = snd_dma_alloc_pages(SNDRV_DMA_TYPE_DEV_IRAM, + chan->device->dev, + hw.buffer_bytes_max, + &substream->dma_buffer); + if (ret < 0) + goto alloc_pagas_fail; + + return 0; + +alloc_pagas_fail: +refine_runtime_hwparams_fail: + snd_dmaengine_pcm_close(substream); +pcm_open_fail: + dma_release_channel(chan); + + return ret; +} + +static int imx_pcm_close(struct snd_soc_component *component, + struct snd_pcm_substream *substream) +{ + if (substream) { + snd_dma_free_pages(&substream->dma_buffer); + substream->dma_buffer.area = NULL; + substream->dma_buffer.addr = 0; + } + + return snd_dmaengine_pcm_close_release_chan(substream); +} + +static int imx_pcm_new(struct snd_soc_component *component, + struct snd_soc_pcm_runtime *rtd) +{ + struct snd_card *card = rtd->card->snd_card; + + return dma_coerce_mask_and_coherent(card->dev, DMA_BIT_MASK(32)); +} + +static const struct snd_soc_component_driver imx_pcm_component = { + .name = "imx-pcm-dma", + .pcm_construct = imx_pcm_new, + .open = imx_pcm_open, + .close = imx_pcm_close, + .hw_params = imx_pcm_hw_params, + .hw_free = imx_pcm_hw_free, + .trigger = imx_pcm_trigger, + .pointer = imx_pcm_pointer, +}; + +int imx_pcm_dma_init(struct platform_device *pdev, size_t size) +{ + return devm_snd_soc_register_component(&pdev->dev, + &imx_pcm_component, NULL, 0); } EXPORT_SYMBOL_GPL(imx_pcm_dma_init); -- 2.21.0

5 17

[PATCH] drm/todo: Add link to old debugfs RFC
by Daniel Vetter 21 Apr '21

21 Apr '21

I always forget where it was, store it until this gets picked up by an internship again. Cc: Wambui Karuga <wambui.karugax(a)gmail.com> Cc: Melissa Wen <melissa.srw(a)gmail.com> Signed-off-by: Daniel Vetter <daniel.vetter(a)intel.com> --- Documentation/gpu/todo.rst | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/gpu/todo.rst b/Documentation/gpu/todo.rst index 7ff9fac10d8b..12e61869939e 100644 --- a/Documentation/gpu/todo.rst +++ b/Documentation/gpu/todo.rst @@ -546,6 +546,8 @@ There's a bunch of issues with it: this (together with the drm_minor->drm_device move) would allow us to remove debugfs_init. +Previous RFC that hasn't landed yet: https://lore.kernel.org/dri-devel/20200513114130.28641-2-wambui.karugax@gma… + Contact: Daniel Vetter Level: Intermediate -- 2.31.0

3 2

[PATCH 1/2] dt-bindings: Add E Ink to vendor bindings
by Alistair Francis 21 Apr '21

21 Apr '21

Add the E Ink Corporation to the vendor bindings. Signed-off-by: Alistair Francis <alistair(a)alistair23.me> --- Documentation/devicetree/bindings/vendor-prefixes.yaml | 2 ++ 1 file changed, 2 insertions(+) diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml index 996f4de2fff5..6c9323dc9b78 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.yaml +++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml @@ -329,6 +329,8 @@ patternProperties: description: eGalax_eMPIA Technology Inc "^einfochips,.*": description: Einfochips + "^eink,.*": + description: E Ink Corporation "^elan,.*": description: Elan Microelectronic Corp. "^element14,.*": -- 2.31.1

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dri-devel April 2021