dri-devel March 2020

dri-devel@lists.freedesktop.org

328 participants
771 discussions

[PATCH 1/3] drm/amdgpu: Drop DRIVER_USE_AGP
by Daniel Vetter 06 Mar '20

06 Mar '20

This doesn't do anything except auto-init drm_agp support when you call drm_get_pci_dev(). Which amdgpu stopped doing with commit b58c11314a1706bf094c489ef5cb28f76478c704 Author: Alex Deucher <alexander.deucher(a)amd.com> Date: Fri Jun 2 17:16:31 2017 -0400 drm/amdgpu: drop deprecated drm_get_pci_dev and drm_put_dev No idea whether this was intentional or accidental breakage, but I guess anyone who manages to boot a this modern gpu behind an agp bridge deserves a price. A price I … [View More]

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[PATCH] Corrected the core clock speed for AMD HAINAN
by Yassine Oudjana 06 Mar '20

06 Mar '20

Empty Message

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[PATCH v3 3/4] dt-bindings: Add ANX7688 HDMI to DP bridge binding
by Enric Balletbo i Serra 06 Mar '20

06 Mar '20

From: Nicolas Boichat <drinkcat(a)chromium.org> Add documentation for DT properties supported by the ANX7688 HDMI-DP converter. Signed-off-by: Nicolas Boichat <drinkcat(a)chromium.org> Signed-off-by: Hsin-Yi Wang <hsinyi(a)chromium.org> Signed-off-by: Enric Balletbo i Serra <enric.balletbo(a)collabora.com> --- Changes in v3: - Adapt the bridge bindings for the multi-function device. Changes in v2: - Improve a bit the descriptions using the info from the datasheet. - … [View More]Convert binding to yaml. - Use dual licensing. .../bridge/analogix,anx7688-bridge.yaml | 80 +++++++++++++++++++ 1 file changed, 80 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/bridge/analogix,anx7688-bridge.yaml diff --git a/Documentation/devicetree/bindings/display/bridge/analogix,anx7688-bridge.yaml b/Documentation/devicetree/bindings/display/bridge/analogix,anx7688-bridge.yaml new file mode 100644 index 000000000000..c56da3f39dd8 --- /dev/null +++ b/Documentation/devicetree/bindings/display/bridge/analogix,anx7688-bridge.yaml @@ -0,0 +1,80 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/bridge/analogix,anx7688-bridge.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analogix ANX7688 HDMI to DisplayPort Bridge + +maintainers: + - Nicolas Boichat <drinkcat(a)chromium.org> + - Enric Balletbo i Serra <enric.balletbo(a)collabora.com> + +description: | + The ANX7688 bridge describes the HDMI 2.0 to DisplayPort 1.3 bridge block + included in the ANX7688 chip controller. These are meant to be used for + controlling display-related signals. + + The node of this device should be under an analogix,anx7866 node. Please refer + to Documentation/devicetree/bindings/mfd/analogix,anx7688.yaml for the ANX7688 + core bindings. + +properties: + compatible: + const: analogix,anx7688-bridge + + ports: + type: object + + properties: + port@0: + type: object + description: | + Video port for HDMI input + + port@1: + type: object + description: | + Video port for DP output + + required: + - port@0 + +required: + - compatible + - ports + +examples: + - | + i2c0 { + #address-cells = <1>; + #size-cells = <0>; + + anx7688: anx7688@2c { + compatible = "analogix,anx7688"; + reg = <0x2c>; + + bridge { + compatible = "analogix,anx7688-bridge"; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + anx7688_in: endpoint { + remote-endpoint = <&hdmi0_out>; + }; + }; + + port@1 { + reg = <1>; + anx7688_out: endpoint { + remote-endpoint = <&typec0_connector>; + }; + }; + }; + }; + }; + }; -- 2.25.1 [View Less]

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[RESEND PATCH v2 0/7] drm: drm_fb_helper cleanup.
by Pankaj Bharadiya 06 Mar '20

06 Mar '20

This series addresses below drm_fb_helper tasks from Documentation/gpu/todo.rst. - The max connector argument for drm_fb_helper_init() isn't used anymore and can be removed. - The helper doesn't keep an array of connectors anymore so these can be removed: drm_fb_helper_single_add_all_connectors(), drm_fb_helper_add_one_connector() and drm_fb_helper_remove_one_connector(). Changes since v1: - Accumulated all review tags into individual commits (Emil, Daniel) - Squashed warning … [View More]fixes into the patch that introduced the warnings (into 5/7) (Laurent, Emil, Lyude) - Remove entire drm_fb_helper tasks from todo list. Daniel's "64914da24ea9 drm/fbdev-helper: don't force restores" fixes first one (Daniel) Pankaj Bharadiya (7): drm: Remove unused arg from drm_fb_helper_init drm/radeon: remove radeon_fb_{add,remove}_connector functions drm/amdgpu: Remove drm_fb_helper_{add,remove}_one_connector calls drm/i915/display: Remove drm_fb_helper_{add,remove}_one_connector calls drm: Remove drm_fb_helper add, add all and remove connector calls drm/fb-helper: Remove drm_fb_helper add, add_all and remove connector functions drm/todo: Update drm_fb_helper tasks Documentation/gpu/todo.rst | 17 ------------ drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c | 5 +--- .../display/amdgpu_dm/amdgpu_dm_mst_types.c | 13 --------- drivers/gpu/drm/armada/armada_fbdev.c | 8 +----- drivers/gpu/drm/bridge/tc358764.c | 3 --- drivers/gpu/drm/drm_fb_helper.c | 6 ++--- drivers/gpu/drm/exynos/exynos_drm_dsi.c | 1 - drivers/gpu/drm/exynos/exynos_drm_fbdev.c | 10 +------ drivers/gpu/drm/gma500/framebuffer.c | 6 +---- drivers/gpu/drm/i915/display/intel_dp_mst.c | 12 --------- drivers/gpu/drm/i915/display/intel_fbdev.c | 4 +-- drivers/gpu/drm/msm/msm_fbdev.c | 6 +---- drivers/gpu/drm/nouveau/dispnv50/disp.c | 7 ----- drivers/gpu/drm/nouveau/nouveau_fbcon.c | 6 +---- drivers/gpu/drm/omapdrm/omap_fbdev.c | 6 +---- drivers/gpu/drm/radeon/radeon_dp_mst.c | 10 ------- drivers/gpu/drm/radeon/radeon_fb.c | 19 +------------ drivers/gpu/drm/radeon/radeon_mode.h | 3 --- drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c | 9 +------ drivers/gpu/drm/tegra/fb.c | 8 +----- include/drm/drm_fb_helper.h | 27 ++----------------- 21 files changed, 15 insertions(+), 171 deletions(-) -- 2.20.1 [View Less]

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[PATCH 0/3] drm/mst: Add support for simultaneous down replies
by Sean Paul 06 Mar '20

06 Mar '20

From: Sean Paul <seanpaul(a)chromium.org> Hey all, Earlier this week on my 5.5 kernel (I can't seem to get a 5.6 kernel to behave on any of my devices), I ran into the multi-reply problem that Wayne fixed in January. Without realizing there was already a fix upstream, I went about solving it in different way. It wasn't until rebasing the patches on 5.6 for the list that I realized there was already a solution. At any rate, I think this way of handling things might be a bit more … [View More]

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[v4] vgacon: Fix a UAF in vgacon_invert_region
by Zhang Xiaoxu 06 Mar '20

06 Mar '20

When syzkaller tests, there is a UAF: BUG: KASan: use after free in vgacon_invert_region+0x9d/0x110 at addr ffff880000100000 Read of size 2 by task syz-executor.1/16489 page:ffffea0000004000 count:0 mapcount:-127 mapping: (null) index:0x0 page flags: 0xfffff00000000() page dumped because: kasan: bad access detected CPU: 1 PID: 16489 Comm: syz-executor.1 Not tainted Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.9.3-0-ge2fc41e-prebuilt.qemu-… [View More]project.org 04/01/2014 Call Trace: [<ffffffffb119f309>] dump_stack+0x1e/0x20 [<ffffffffb04af957>] kasan_report+0x577/0x950 [<ffffffffb04ae652>] __asan_load2+0x62/0x80 [<ffffffffb090f26d>] vgacon_invert_region+0x9d/0x110 [<ffffffffb0a39d95>] invert_screen+0xe5/0x470 [<ffffffffb0a21dcb>] set_selection+0x44b/0x12f0 [<ffffffffb0a3bfae>] tioclinux+0xee/0x490 [<ffffffffb0a1d114>] vt_ioctl+0xff4/0x2670 [<ffffffffb0a0089a>] tty_ioctl+0x46a/0x1a10 [<ffffffffb052db3d>] do_vfs_ioctl+0x5bd/0xc40 [<ffffffffb052e2f2>] SyS_ioctl+0x132/0x170 [<ffffffffb11c9b1b>] system_call_fastpath+0x22/0x27 Memory state around the buggy address: ffff8800000fff00: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ffff8800000fff80: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 >ffff880000100000: ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff ff It can be reproduce in the linux mainline by the program: #include <stdio.h> #include <stdlib.h> #include <unistd.h> #include <fcntl.h> #include <sys/types.h> #include <sys/stat.h> #include <sys/ioctl.h> #include <linux/vt.h> struct tiocl_selection { unsigned short xs; /* X start */ unsigned short ys; /* Y start */ unsigned short xe; /* X end */ unsigned short ye; /* Y end */ unsigned short sel_mode; /* selection mode */ }; #define TIOCL_SETSEL 2 struct tiocl { unsigned char type; unsigned char pad; struct tiocl_selection sel; }; int main() { int fd = 0; const char *dev = "/dev/char/4:1"; struct vt_consize v = {0}; struct tiocl tioc = {0}; fd = open(dev, O_RDWR, 0); v.v_rows = 3346; ioctl(fd, VT_RESIZEX, &v); tioc.type = TIOCL_SETSEL; ioctl(fd, TIOCLINUX, &tioc); return 0; } When resize the screen, update the 'vc->vc_size_row' to the new_row_size, but when 'set_origin' in 'vgacon_set_origin', vgacon use 'vga_vram_base' for 'vc_origin' and 'vc_visible_origin', not 'vc_screenbuf'. It maybe smaller than 'vc_screenbuf'. When TIOCLINUX, use the new_row_size to calc the offset, it maybe larger than the vga_vram_size in vgacon driver, then bad access. Also, if set an larger screenbuf firstly, then set an more larger screenbuf, when copy old_origin to new_origin, a bad access may happen. So, If the screen size larger than vga_vram, resize screen should be failed. This alse fix CVE-2020-8649 and CVE-2020-8647. Fixes: 0aec4867dca14 ("[PATCH] SVGATextMode fix") Reference: CVE-2020-8647 and CVE-2020-8649 Reported-by: Hulk Robot <hulkci(a)huawei.com> Signed-off-by: Zhang Xiaoxu <zhangxiaoxu5(a)huawei.com> --- drivers/video/console/vgacon.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/video/console/vgacon.c b/drivers/video/console/vgacon.c index de7b8382aba9..998b0de1812f 100644 --- a/drivers/video/console/vgacon.c +++ b/drivers/video/console/vgacon.c @@ -1316,6 +1316,9 @@ static int vgacon_font_get(struct vc_data *c, struct console_font *font) static int vgacon_resize(struct vc_data *c, unsigned int width, unsigned int height, unsigned int user) { + if ((width << 1) * height > vga_vram_size) + return -EINVAL; + if (width % 2 || width > screen_info.orig_video_cols || height > (screen_info.orig_video_lines * vga_default_font_height)/ c->vc_font.height) -- 2.17.2 [View Less]

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[git pull] drm fixes for 5.6-rc5
by Dave Airlie 06 Mar '20

06 Mar '20

Hi Linus, Weekly fixes round, looks like a few people woke up, got a bunch of fixes across the drivers. Bit bigger than I'd like but they all seem fine and hopefully it quiets down now. sun4i, kirin, mediatek and exynos on the ARM side. virtio-gpu and core have some mmap fixes, and there is a dma-buf leak. one ttm fence leak is also fixed. Otherwise it's mostly amdgpu and i915. One of the i915 fixes is for a very long latency I was seeing (using latencytop) running gnome-shell locally when … [View More]using firefox and eating nearly all my RAM, it really helps with desktop responsiveness esp when firefox is chewing a lot. Dave. drm-fixes-2020-03-06: drm fixes for 5.6-rc5 dma-buf: - fix memory leak core: - shmem object mmap fix. ttm: - Fix fence leak in ttm_buffer_object_transfer(). amdgpu: - Gfx reset fix for gfx9, 10 - Fix for gfx10 - DP MST fix - DCC fix - Renoir power fixes - Navi power fix i915: - Break up long lists of object reclaim with cond_resched() - PSR probe fix - TGL workarounds - Selftest return value fix - Drop timeline mutex while waiting for retirement - Wait for OA configuration completion before writes to OA buffer virtio: - Fix resource id creation race in virtio. - mmap fixes sun4i: - Fixes for sun4i VI layer format support. kirin: - kirin: Revert "Fix for hikey620 display offset problem" exynos: - fix a kernel oops problem in case that driver is loaded as module. - fix a regulator warning issue when I2C DDC adapter cannot be gathered. - print out an error message only in error case excepting -EPROBE_DEFER. mediatek: - overlay, cursor and gce fixes. ` The following changes since commit 98d54f81e36ba3bf92172791eba5ca5bd813989b: Linux 5.6-rc4 (2020-03-01 16:38:46 -0600) are available in the Git repository at: git://anongit.freedesktop.org/drm/drm tags/drm-fixes-2020-03-06 for you to fetch changes up to 2ac4853e295bba53209917e14af701c45c99ce04: Merge tag 'amd-drm-fixes-5.6-2020-03-05' of git://people.freedesktop.org/~agd5f/linux into drm-fixes (2020-03-06 11:06:33 +1000) ---------------------------------------------------------------- drm fixes for 5.6-rc5 dma-buf: - fix memory leak core: - shmem object mmap fix. ttm: - Fix fence leak in ttm_buffer_object_transfer(). amdgpu: - Gfx reset fix for gfx9, 10 - Fix for gfx10 - DP MST fix - DCC fix - Renoir power fixes - Navi power fix i915: - Break up long lists of object reclaim with cond_resched() - PSR probe fix - TGL workarounds - Selftest return value fix - Drop timeline mutex while waiting for retirement - Wait for OA configuration completion before writes to OA buffer virtio: - Fix resource id creation race in virtio. - mmap fixes sun4i: - Fixes for sun4i VI layer format support. kirin: - kirin: Revert "Fix for hikey620 display offset problem" exynos: - fix a kernel oops problem in case that driver is loaded as module. - fix a regulator warning issue when I2C DDC adapter cannot be gathered. - print out an error message only in error case excepting -EPROBE_DEFER. mediatek: - overlay, cursor and gce fixes. ` ---------------------------------------------------------------- Ahzo (1): drm/ttm: fix leaking fences via ttm_buffer_object_transfer Bhawanpreet Lakha (1): drm/amd/display: Clear link settings on MST disable connector Bibby Hsieh (4): drm/mediatek: Add plane check in async_check function drm/mediatek: Add fb swap in async_update drm/mediatek: Move gce event property to mutex device node drm/mediatek: Make sure previous message done or be aborted before send Chris Wilson (4): drm/i915/gem: Break up long lists of object reclaim drm/i915: Protect i915_request_await_start from early waits drm/i915/perf: Reintroduce wait on OA configuration completion drm/i915/gt: Drop the timeline->mutex as we wait for retirement Cong Wang (1): dma-buf: free dmabuf->name in dma_buf_release() Dan Carpenter (1): drm/i915/selftests: Fix return in assert_mmap_offset() Dave Airlie (5): Merge tag 'exynos-drm-fixes-for-v5.6-rc5' of git://git.kernel.org/.../daeinki/drm-exynos into drm-fixes Merge tag 'mediatek-drm-fixes-5.6' of https://github.com/ckhu-mediatek/linux.git-tags into drm-fixes Merge tag 'drm-misc-fixes-2020-03-05' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes Merge tag 'drm-intel-fixes-2020-03-05' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes Merge tag 'amd-drm-fixes-5.6-2020-03-05' of git://people.freedesktop.org/~agd5f/linux into drm-fixes Evan Benn (1): drm/mediatek: Find the cursor plane instead of hard coding it Gerd Hoffmann (3): drm/shmem: add support for per object caching flags. drm/virtio: fix mmap page attributes drm/shmem: drop pgprot_decrypted() Hersen Wu (1): drm/amdgpu/display: navi1x copy dcn watermark clock settings to smu resume from s3 (v2) Icenowy Zheng (1): drm/bridge: analogix-anx6345: fix set of link bandwidth Jernej Skrabec (3): drm/sun4i: de2/de3: Remove unsupported VI layer formats drm/sun4i: Add separate DE3 VI layer formats drm/sun4i: Fix DE2 VI layer format support John Bates (1): drm/virtio: fix resource id creation race John Stultz (1): drm: kirin: Revert "Fix for hikey620 display offset problem" Josip Pavic (1): drm/amd/display: fix dcc swath size calculations on dcn1 José Roberto de Souza (1): drm/i915/psr: Force PSR probe only after full initialization Lucas De Marchi (1): drm/i915/tgl: Add Wa_1608008084 Marek Szyprowski (3): drm/exynos: dsi: propagate error value and silence meaningless warning drm/exynos: dsi: fix workaround for the legacy clock name drm/exynos: hdmi: don't leak enable HDMI_EN regulator if probe fails Matt Roper (2): drm/i915: Program MBUS with rmw during initialization drm/i915/tgl: Add Wa_22010178259:tgl Phong LE (1): drm/mediatek: Handle component type MTK_DISP_OVL_2L correctly Prike Liang (2): drm/amd/powerplay: fix pre-check condition for setting clock range drm/amd/powerplay: map mclk to fclk for COMBINATIONAL_BYPASS case Sean Paul (1): drm/mediatek: Ensure the cursor plane is on top of other overlays Tianci.Yin (1): drm/amdgpu: disable 3D pipe 1 on Navi1x Tomeu Vizoso (1): drm/panfrost: Don't try to map on error faults Yintian Tao (1): drm/amdgpu: clean wptr on wb when gpu recovery drivers/dma-buf/dma-buf.c | 1 + drivers/gpu/drm/amd/amdgpu/gfx_v10_0.c | 98 ++++++++++--------- drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c | 1 + drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 69 ++++++++++++++ .../amd/display/amdgpu_dm/amdgpu_dm_mst_types.c | 1 + .../gpu/drm/amd/display/dc/dcn10/dcn10_hubbub.c | 4 +- drivers/gpu/drm/amd/powerplay/amdgpu_smu.c | 2 +- drivers/gpu/drm/amd/powerplay/renoir_ppt.c | 6 +- drivers/gpu/drm/amd/powerplay/smu_v12_0.c | 3 - drivers/gpu/drm/bridge/analogix/analogix-anx6345.c | 3 +- drivers/gpu/drm/drm_gem_shmem_helper.c | 16 +++- drivers/gpu/drm/exynos/exynos_drm_dsi.c | 12 ++- drivers/gpu/drm/exynos/exynos_hdmi.c | 22 +++-- drivers/gpu/drm/hisilicon/kirin/kirin_ade_reg.h | 1 - drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c | 20 ---- drivers/gpu/drm/i915/display/intel_display_power.c | 29 +++++- drivers/gpu/drm/i915/display/intel_psr.c | 25 ++++- drivers/gpu/drm/i915/display/intel_psr.h | 1 + drivers/gpu/drm/i915/gem/i915_gem_object.c | 1 + drivers/gpu/drm/i915/gem/selftests/i915_gem_mman.c | 2 +- drivers/gpu/drm/i915/gt/intel_gt_requests.c | 14 ++- drivers/gpu/drm/i915/gt/intel_workarounds.c | 19 ++-- drivers/gpu/drm/i915/i915_drv.c | 3 + drivers/gpu/drm/i915/i915_drv.h | 2 +- drivers/gpu/drm/i915/i915_perf.c | 58 ++++++++---- drivers/gpu/drm/i915/i915_perf_types.h | 3 +- drivers/gpu/drm/i915/i915_reg.h | 1 + drivers/gpu/drm/i915/i915_request.c | 41 +++++--- drivers/gpu/drm/mediatek/mtk_drm_crtc.c | 30 ++++-- drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 1 + drivers/gpu/drm/mediatek/mtk_drm_plane.c | 7 ++ drivers/gpu/drm/panfrost/panfrost_mmu.c | 44 ++++----- drivers/gpu/drm/sun4i/sun8i_mixer.c | 104 ++++++++++++++++++--- drivers/gpu/drm/sun4i/sun8i_mixer.h | 11 +++ drivers/gpu/drm/sun4i/sun8i_vi_layer.c | 66 +++++++++++-- drivers/gpu/drm/ttm/ttm_bo_util.c | 1 + drivers/gpu/drm/virtio/virtgpu_object.c | 5 +- include/drm/drm_gem_shmem_helper.h | 5 + 38 files changed, 520 insertions(+), 212 deletions(-) [View Less]

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[PATCH v2 1/2] Documentation: bindings: Add ANX7688 HDMI to DP bridge binding
by Enric Balletbo i Serra 06 Mar '20

06 Mar '20

From: Nicolas Boichat <drinkcat(a)chromium.org> Add documentation for DT properties supported by anx7688 HDMI-DP converter. Signed-off-by: Nicolas Boichat <drinkcat(a)chromium.org> Signed-off-by: Hsin-Yi Wang <hsinyi(a)chromium.org> Signed-off-by: Enric Balletbo i Serra <enric.balletbo(a)collabora.com> --- Changes in v2: - Improve a bit the descriptions using the info from the datasheet. - Convert binding to yaml. - Use dual licensing. .../bindings/display/bridge/… [View More]anx7688.yaml | 79 +++++++++++++++++++ 1 file changed, 79 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/bridge/anx7688.yaml diff --git a/Documentation/devicetree/bindings/display/bridge/anx7688.yaml b/Documentation/devicetree/bindings/display/bridge/anx7688.yaml new file mode 100644 index 000000000000..c1b4b5191d44 --- /dev/null +++ b/Documentation/devicetree/bindings/display/bridge/anx7688.yaml @@ -0,0 +1,79 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/display/bridge/anx7688.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analogix ANX7688 HDMI to USB Type-C Bridge (Port Controller with MUX) + +maintainers: + - Nicolas Boichat <drinkcat(a)chromium.org> + - Enric Balletbo i Serra <enric.balletbo(a)collabora.com> + +description: | + The ANX7688 is a single-chip mobile transmitter to support 4K 60 frames per + second (4096x2160p60) or FHD 120 frames per second (1920x1080p120) video + resolution from a smartphone or tablet with full function USB-C. + + This binding only describes the HDMI to DP display bridge. + +properties: + compatible: + const: analogix,anx7688 + + reg: + maxItems: 1 + description: I2C address of the device + + ports: + type: object + + properties: + port@0: + type: object + description: | + Video port for HDMI input + + port@1: + type: object + description: | + Video port for DP output + + required: + - port@0 + +required: + - compatible + - reg + - ports + +examples: + - | + i2c0 { + #address-cells = <1>; + #size-cells = <0>; + + anx7688: dp-bridge@2c { + compatible = "analogix,anx7688"; + reg = <0x2c>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + anx7866_in: endpoint { + remote-endpoint = <&hdmi0_out>; + }; + }; + + port@1 { + reg = <1>; + anx7866_out: endpoint { + remote-endpoint = <&panel_in>; + }; + }; + }; + }; + }; -- 2.25.0 [View Less]

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[PATCH v5 0/4] Add dts for mt8183 GPU (and misc panfrost patches)
by Nicolas Boichat 06 Mar '20

06 Mar '20

Hi! Follow-up on the v4: https://patchwork.kernel.org/cover/11369777/, some of the core patches got merged already (thanks Rob!). The main purpose of this series is to upstream the dts change and the binding document, but I wanted to see how far I could probe the GPU, to check that the binding is indeed correct. The rest of the patches are RFC/work-in-progress. So this is tested on MT8183 with a chromeos-4.19 kernel, and a ton of backports to get the latest panfrost driver (I should probably … [View More]try on linux-next at some point but this was the path of least resistance). I tested it as a module as it's more challenging (originally probing would work built-in, on boot, but not as a module, as I didn't have the power domain changes, and all power domains are on by default during boot). Probing logs looks like this, currently. They look sane. [ 501.319728] panfrost 13040000.gpu: clock rate = 511999970 [ 501.320041] panfrost 13040000.gpu: Linked as a consumer to regulator.14 [ 501.320102] panfrost 13040000.gpu: Linked as a consumer to regulator.31 [ 501.320651] panfrost 13040000.gpu: Linked as a consumer to genpd:0:13040000.gpu [ 501.320954] panfrost 13040000.gpu: Linked as a consumer to genpd:1:13040000.gpu [ 501.321062] panfrost 13040000.gpu: Linked as a consumer to genpd:2:13040000.gpu [ 501.321734] panfrost 13040000.gpu: mali-g72 id 0x6221 major 0x0 minor 0x3 status 0x0 [ 501.321741] panfrost 13040000.gpu: features: 00000000,13de77ff, issues: 00000000,00000400 [ 501.321747] panfrost 13040000.gpu: Features: L2:0x07120206 Shader:0x00000000 Tiler:0x00000809 Mem:0x1 MMU:0x00002830 AS:0xff JS:0x7 [ 501.321752] panfrost 13040000.gpu: shader_present=0x7 l2_present=0x1 [ 501.324951] [drm] Initialized panfrost 1.1.0 20180908 for 13040000.gpu on minor 2 Some more changes are still required to get devfreq working, and of course I do not have a userspace driver to test this with. I believe at least patches 1 & 2 can be merged (2 depends on another patch series, so maybe we could start with 1 only for now...). Thanks! Nicolas Boichat (4): dt-bindings: gpu: mali-bifrost: Add Mediatek MT8183 arm64: dts: mt8183: Add node for the Mali GPU RFC: drm/panfrost: Add mt8183-mali compatible string RFC: drm/panfrost: devfreq: Add support for 2 regulators .../bindings/gpu/arm,mali-bifrost.yaml | 25 +++++ arch/arm64/boot/dts/mediatek/mt8183-evb.dts | 7 ++ arch/arm64/boot/dts/mediatek/mt8183.dtsi | 105 ++++++++++++++++++ drivers/gpu/drm/panfrost/panfrost_devfreq.c | 17 +++ drivers/gpu/drm/panfrost/panfrost_device.h | 1 + drivers/gpu/drm/panfrost/panfrost_drv.c | 11 ++ 6 files changed, 166 insertions(+) -- 2.25.1.481.gfbce0eb801-goog [View Less]

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[v1] dt-bindings: msm:disp: update dsi and dpu bindings
by Harigovindan P 06 Mar '20

06 Mar '20

Updating bindings of dsi and dpu by adding and removing certain properties. Signed-off-by: Harigovindan P <harigovi(a)codeaurora.org> --- Changes in v1: - Adding "ahb" clock as a required property. - Adding "bus", "rot", "lut" as optional properties for sc7180 device. - Removing properties from dsi bindings that are unused. - Removing power-domain property since DSI is the child node of MDSS and it will inherit supply from its parent. Documentation/… [View More]devicetree/bindings/display/msm/dpu.txt | 7 +++++++ Documentation/devicetree/bindings/display/msm/dsi.txt | 5 ----- 2 files changed, 7 insertions(+), 5 deletions(-) diff --git a/Documentation/devicetree/bindings/display/msm/dpu.txt b/Documentation/devicetree/bindings/display/msm/dpu.txt index 551ae26..dd58472a 100644 --- a/Documentation/devicetree/bindings/display/msm/dpu.txt +++ b/Documentation/devicetree/bindings/display/msm/dpu.txt @@ -19,6 +19,7 @@ Required properties: The following clocks are required: * "iface" * "bus" + * "ahb" * "core" - interrupts: interrupt signal from MDSS. - interrupt-controller: identifies the node as an interrupt controller. @@ -50,6 +51,8 @@ Required properties: - clock-names: device clock names, must be in same order as clocks property. The following clocks are required. * "bus" + For the device "qcom,sc7180-dpu": + * "bus" - is an optional property due to architecture change. * "iface" * "core" * "vsync" @@ -70,6 +73,10 @@ Optional properties: - assigned-clocks: list of clock specifiers for clocks needing rate assignment - assigned-clock-rates: list of clock frequencies sorted in the same order as the assigned-clocks property. +- For the device "qcom,sc7180-dpu": + clock-names: optional device clocks, needed for accessing LUT blocks. + * "rot" + * "lut" Example: diff --git a/Documentation/devicetree/bindings/display/msm/dsi.txt b/Documentation/devicetree/bindings/display/msm/dsi.txt index af95586..61d659a 100644 --- a/Documentation/devicetree/bindings/display/msm/dsi.txt +++ b/Documentation/devicetree/bindings/display/msm/dsi.txt @@ -8,13 +8,10 @@ Required properties: - reg-names: The names of register regions. The following regions are required: * "dsi_ctrl" - interrupts: The interrupt signal from the DSI block. -- power-domains: Should be <&mmcc MDSS_GDSC>. - clocks: Phandles to device clocks. - clock-names: the following clocks are required: - * "mdp_core" * "iface" * "bus" - * "core_mmss" * "byte" * "pixel" * "core" @@ -156,7 +153,6 @@ Example: "core", "core_mmss", "iface", - "mdp_core", "pixel"; clocks = <&mmcc MDSS_AXI_CLK>, @@ -164,7 +160,6 @@ Example: <&mmcc MDSS_ESC0_CLK>, <&mmcc MMSS_MISC_AHB_CLK>, <&mmcc MDSS_AHB_CLK>, - <&mmcc MDSS_MDP_CLK>, <&mmcc MDSS_PCLK0_CLK>; assigned-clocks = -- 2.7.4 [View Less]

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dri-devel March 2020