dri-devel January 2022

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[PATCH v4 0/6] drm: exynos: dsi: Convert drm bridge
by Jagan Teki 11 Jan '22

11 Jan '22

Updated series about drm bridge conversion of exynos dsi. Previous version can be accessible, here [1]. Patch 1: connector reset Patch 2: panel_bridge API Patch 3: Bridge conversion Patch 4: Atomic functions Patch 5: atomic_set Patch 6: DSI init in enable Apply below patches to test on Exynos DSI: - https://patchwork.amarulasolutions.com/patch/1825/ - https://patchwork.amarulasolutions.com/patch/1823/ [1] https://patchwork.kernel.org/project/dri-devel/cover/20211212181416.3312656… Any inputs? Jagan. Jagan Teki (6): drm: bridge: panel: Reset the connector state pointer drm: exynos: dsi: Use drm panel_bridge API drm: exynos: dsi: Convert to bridge driver drm: exynos: dsi: Switch to atomic funcs drm: exynos: dsi: Get the mode from bridge drm: exynos: dsi: Move DSI init in bridge enable drivers/gpu/drm/bridge/panel.c | 3 + drivers/gpu/drm/exynos/exynos_drm_dsi.c | 244 ++++++++---------------- 2 files changed, 80 insertions(+), 167 deletions(-) -- 2.25.1

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[PATCH RESEND v4 v5 0/4] drm/vc4: Use the firmware to stop the display pipeline
by Maxime Ripard 11 Jan '22

11 Jan '22

Hi, The VC4 driver has had limited support to disable the HDMI controllers and pixelvalves at boot if the firmware has enabled them. However, this proved to be limited, and a bit unreliable so a new firmware command has been introduced some time ago to make it free all its resources and disable any display output it might have enabled. This series takes advantage of that command to call it once the transition from simplefb to the KMS driver has been done. Let me know what you think, Maxime --- Changes from v4: - Don't register v3d with nomodeset Changes from v3: - Support nomodeset Changes from v2: - Switch back to rpi_firmware_get / rpi_firmware_put - Moved the rpi_firmware pointer to a local variable Changes from v1: - Use of_find_compatible_node instead of a phandle - Use devm_rpi_firmware_get Maxime Ripard (4): firmware: raspberrypi: Add RPI_FIRMWARE_NOTIFY_DISPLAY_DONE drm/vc4: Support nomodeset drm/vc4: Remove conflicting framebuffers before callind bind_all drm/vc4: Notify the firmware when DRM is in charge drivers/gpu/drm/vc4/vc4_drv.c | 33 +++++++++++++++++++--- include/soc/bcm2835/raspberrypi-firmware.h | 1 + 2 files changed, 30 insertions(+), 4 deletions(-) -- 2.33.1

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[RESEND PATCH v2 0/2] drm: Small CMA cleanups
by Thomas Zimmermann 11 Jan '22

11 Jan '22

(no changes; resending for kernel CI) Remove CMA dependencies from MIPI-DBI and replace the config symbol DRM_KMS_CMA_HELPER with DRM_KMS_HELPER. This allows to link drm_fb_cma_helper.o into a helper library. Thomas Zimmermann (2): drm/mipi-dbi: Remove dependency on GEM CMA helper library drm: Remove CONFIG_DRM_KMS_CMA_HELPER option drivers/gpu/drm/Kconfig | 7 ----- drivers/gpu/drm/Makefile | 2 +- drivers/gpu/drm/arm/Kconfig | 2 -- drivers/gpu/drm/arm/display/Kconfig | 1 - drivers/gpu/drm/aspeed/Kconfig | 1 - drivers/gpu/drm/atmel-hlcdc/Kconfig | 1 - drivers/gpu/drm/drm_mipi_dbi.c | 34 ++++++++++++++++++------- drivers/gpu/drm/fsl-dcu/Kconfig | 1 - drivers/gpu/drm/hisilicon/kirin/Kconfig | 1 - drivers/gpu/drm/imx/Kconfig | 2 +- drivers/gpu/drm/imx/dcss/Kconfig | 2 +- drivers/gpu/drm/ingenic/Kconfig | 1 - drivers/gpu/drm/kmb/Kconfig | 1 - drivers/gpu/drm/mcde/Kconfig | 1 - drivers/gpu/drm/meson/Kconfig | 1 - drivers/gpu/drm/mxsfb/Kconfig | 2 +- drivers/gpu/drm/panel/Kconfig | 2 +- drivers/gpu/drm/pl111/Kconfig | 1 - drivers/gpu/drm/rcar-du/Kconfig | 1 - drivers/gpu/drm/shmobile/Kconfig | 1 - drivers/gpu/drm/sti/Kconfig | 1 - drivers/gpu/drm/stm/Kconfig | 1 - drivers/gpu/drm/sun4i/Kconfig | 1 - drivers/gpu/drm/tidss/Kconfig | 1 - drivers/gpu/drm/tilcdc/Kconfig | 1 - drivers/gpu/drm/tiny/Kconfig | 20 +++++++-------- drivers/gpu/drm/tve200/Kconfig | 1 - drivers/gpu/drm/vc4/Kconfig | 1 - drivers/gpu/drm/xlnx/Kconfig | 1 - 29 files changed, 40 insertions(+), 53 deletions(-) base-commit: c2502072fe2bd823d59749dca7fde064b345e61c -- 2.33.1

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[PATCH 0/5] Support Geekworm MZP280 Panel for Raspberry Pi
by Chris Morgan 11 Jan '22

11 Jan '22

From: Chris Morgan <macromorgan(a)hotmail.com> This patch series is to add support for the MZP280 panel for the Raspberry Pi. This panel requires adding support for Mode 3 of the Raspberry Pi DPI connector, which necessitates a new media bus format. This patch series has been tested on my Raspberry Pi 4 with version 1 of the panel in question. Signed-off-by: Chris Morgan <macromorgan(a)hotmail.com> Chris Morgan (5): media: uapi: Document format MEDIA_BUS_FMT_RGB565_1X24_CPADHI media: uapi: add MEDIA_BUS_FMT_RGB565_1X24_CPADHI dt-bindings: display: simple: add Geekworm MZP280 Panel drm/panel: simple: add Geekworm MZP280 Panel drm/vc4: dpi: Support DPI interface in mode3 for RGB565 .../bindings/display/panel/panel-simple.yaml | 2 + .../media/v4l/subdev-formats.rst | 37 +++++++++++++++++++ drivers/gpu/drm/panel/panel-simple.c | 29 +++++++++++++++ drivers/gpu/drm/vc4/vc4_dpi.c | 4 ++ include/uapi/linux/media-bus-format.h | 3 +- 5 files changed, 74 insertions(+), 1 deletion(-) -- 2.25.1

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[PATCH] i915: make array flex_regs static const
by Colin Ian King 11 Jan '22

11 Jan '22

Don't populate the read-only array flex_regs on the stack but instead it static const. Also makes the object code a little smaller. Signed-off-by: Colin Ian King <colin.i.king(a)gmail.com> --- drivers/gpu/drm/i915/i915_perf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c index e27f3b7cf094..df698960fdc0 100644 --- a/drivers/gpu/drm/i915/i915_perf.c +++ b/drivers/gpu/drm/i915/i915_perf.c @@ -2114,7 +2114,7 @@ gen8_update_reg_state_unlocked(const struct intel_context *ce, u32 ctx_oactxctrl = stream->perf->ctx_oactxctrl_offset; u32 ctx_flexeu0 = stream->perf->ctx_flexeu0_offset; /* The MMIO offsets for Flex EU registers aren't contiguous */ - i915_reg_t flex_regs[] = { + static const i915_reg_t flex_regs[] = { EU_PERF_CNTL0, EU_PERF_CNTL1, EU_PERF_CNTL2, -- 2.32.0

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[Bug 215001] Regression in 5.15, Firmware-initialized graphics console selects FB_VGA16, screen corruption
by bugzilla-daemon＠bugzilla.kernel.org 11 Jan '22

11 Jan '22

https://bugzilla.kernel.org/show_bug.cgi?id=215001 --- Comment #12 from Javier Martinez Canillas (javier(a)dowhile0.org) --- Hello Kris, Could you please also test the patches in v2? https://lore.kernel.org/dri-devel/20220110095625.278836-1-javierm@redhat.co… There shouldn't be any changes with respect to v1, but just wanted to be safe before pushing to drm-misc since I can't test them. Thanks a lot and best regards, Javier -- You may reply to this email to add a comment. You are receiving this mail because: You are on the CC list for the bug.

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[PATCH] drm/sun4i: dw-hdmi: Fix missing put_device() call in sun8i_hdmi_phy_get
by Miaoqian Lin 11 Jan '22

11 Jan '22

The reference taken by 'of_find_device_by_node()' must be released when not needed anymore. Add the corresponding 'put_device()' in the error handling path. Fixes: 9bf3797796f5 ("drm/sun4i: dw-hdmi: Make HDMI PHY into a platform device") Signed-off-by: Miaoqian Lin <linmq006(a)gmail.com> --- drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c b/drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c index b64d93da651d..5e2b0175df36 100644 --- a/drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c +++ b/drivers/gpu/drm/sun4i/sun8i_hdmi_phy.c @@ -658,8 +658,10 @@ int sun8i_hdmi_phy_get(struct sun8i_dw_hdmi *hdmi, struct device_node *node) return -EPROBE_DEFER; phy = platform_get_drvdata(pdev); - if (!phy) + if (!phy) { + put_device(&pdev->dev); return -EPROBE_DEFER; + } hdmi->phy = phy; -- 2.17.1

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Re: [PATCH 1/2] arm64: dts: exynos: Link DSI panel at port@1 for TM2 board
by Andrzej Hajda 11 Jan '22

11 Jan '22

+CC: dri-devel On 10.01.2022 16:27, Jagan Teki wrote: > TM2 board DSI pipeline has input from MIC and output to > s6e3ha2 panel. > > The existing pipeline has child nodes of ports, panel and > MIC is remote-endpoint reference of port@0 of ports. > > Adding panel as another child node to DSI is unconventional > as pipeline has ports child. However it can be true if MIC > is added inside port node like this. > > dsi { > compatible = "samsung,exynos5433-mipi-dsi"; > #address-cells = <1>; > #size-cells = <0>; > > port { > dsi_to_mic: endpoint { > remote-endpoint = <&mic_to_dsi>; > }; > }; > > panel@0 { > compatible = "samsung,s6e3hf2"; > reg = <0>; > vdd3-supply = <&ldo27_reg>; > vci-supply = <&ldo28_reg>; > reset-gpios = <&gpg0 0 GPIO_ACTIVE_LOW>; > enable-gpios = <&gpf1 5 GPIO_ACTIVE_HIGH>; > }; > }; > > The above pipeline is proper but it requires the DSI input MIC > pipeline to update. > > This patch is trying to add panel at port@1 so-that the entire > pipeline before to panel output is untouched. > > Reported-by: Marek Szyprowski <m.szyprowski(a)samsung.com> > Signed-off-by: Jagan Teki <jagan(a)amarulasolutions.com> > --- > arch/arm64/boot/dts/exynos/exynos5433-tm2.dts | 16 ++++++++++++++++ > 1 file changed, 16 insertions(+) > > diff --git a/arch/arm64/boot/dts/exynos/exynos5433-tm2.dts b/arch/arm64/boot/dts/exynos/exynos5433-tm2.dts > index aca01709fd29..e13210c8d7e0 100644 > --- a/arch/arm64/boot/dts/exynos/exynos5433-tm2.dts > +++ b/arch/arm64/boot/dts/exynos/exynos5433-tm2.dts > @@ -53,6 +53,16 @@ &cmu_disp { > }; > > &dsi { > + ports { > + port@1 { > + reg = <1>; > + > + dsi_out_panel: endpoint { > + remote-endpoint = <&dsi_in_panel>; > + }; > + }; > + }; > + > panel@0 { > compatible = "samsung,s6e3ha2"; > reg = <0>; > @@ -60,6 +70,12 @@ panel@0 { > vci-supply = <&ldo28_reg>; > reset-gpios = <&gpg0 0 GPIO_ACTIVE_LOW>; > enable-gpios = <&gpf1 5 GPIO_ACTIVE_HIGH>; > + > + port { > + dsi_in_panel: endpoint { > + remote-endpoint = <&dsi_out_panel>; > + }; > + }; As I already wrote in Exynos thread, DSI host has already parent-child relation with the panel - DSI host knows well who is connected to it. Adding another links between them is redundant and has no value added. I have already answered in Exynos thread[1] how could you deal with the issue, you have. [1]: https://lore.kernel.org/dri-devel/e541c52b-9751-933b-5eac-783dd0ed9056@inte… Regards Andrzej > }; > }; >

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[PATCH v1 0/2] sprd drm cover letter
by Kevin Tang 11 Jan '22

11 Jan '22

v1: remove the selected DRM_KMS_CMA_HELPER in kconfig drm-sprd-fix-potential-NULL-dereference Kevin Tang (2): drm/sprd: remove the selected DRM_KMS_CMA_HELPER in kconfig drm/sprd: fix potential NULL dereference drivers/gpu/drm/sprd/Kconfig | 1 - drivers/gpu/drm/sprd/sprd_dpu.c | 3 +++ drivers/gpu/drm/sprd/sprd_drm.c | 8 ++------ drivers/gpu/drm/sprd/sprd_dsi.c | 3 +++ 4 files changed, 8 insertions(+), 7 deletions(-) -- 2.29.0

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[RFC v3 0/7] Add GuC Error Capture Support
by Alan Previn 11 Jan '22

11 Jan '22

This series: 1. Supports the roll out of an upcoming GuC feature to enable error-state-capture that allows the driver to register lists of MMIO registers that GuC will report during a GuC triggered engine-reset event. 2. Updates the ADS blob creation to register lists of global and engine registers with GuC. 3. Defines tables of register lists that are global or engine class or engine instance in scope. 4. Separates GuC log-buffer access locks for relay logging vs the new region for the error state capture data. 5. Allocates an additional interim circular buffer store to copy snapshots of new GuC reported error-state-capture dumps in response to the G2H notification. 6. Connects the i915_gpu_coredump reporting function to the GuC error capture module to print all GuC error state capture dumps that is reported. This is the 3rd rev of this series. However, take note that this series will not pass CI until the following series is merged to upgrade the GuC firmware to a newer version which requires Patch #1 of this series is dropped: https://patchwork.kernel.org/project/intel-gfx/list/?series=599007 Prior receipts of rvb's: - Patch #4 has received R-v-b from Matthew Brost <matthew.brost(a)intel.com> Changes from prior revs: v3: - Fixed all review comments from rev2 except the following: - Michal Wajdeczko proposed adding a seperate function to lookup register string nameslookup (based on offset) but decided against it because of offset conflicts and the current table layout is easier to maintain. - Last set of checkpatch errors pertaining to "COMPLEX MACROS" should be fixed on next rev. - Abstracted internal-to-guc-capture information into a new __guc_state_capture_priv structure that allows the exclusion of intel_guc.h and intel_guc_fwif.h from intel_guc_capture.h. Now, only the first 2 patches have a wider build time impact because of the changes to intel_guc_fwif.h but subsequent changes to guc-capture internal structures or firmware interfaces used solely by guc-capture module shoudn't impact the rest of the driver build. - Added missing Gen12LP registers and added slice+subslice indices when reporting extended steered registers. - Add additional checks to ensure that the GuC reported error capture information matches the i915_gpu_coredump that is being printed before we print out the corresponding VMA dumps such as the batch buffer. v2: - Ignore - failed CI retest. Alan Previn (6): drm/i915/guc: Update GuC ADS size for error capture lists drm/i915/guc: Populate XE_LP register lists for GuC error state capture. drm/i915/guc: Add GuC's error state capture output structures. drm/i915/guc: Update GuC's log-buffer-state access for error capture. drm/i915/guc: Copy new GuC error capture logs upon G2H notification. drm/i915/guc: Print the GuC error capture output register list. John Harrison (1): drm/i915/guc: Add basic support for error capture lists drivers/gpu/drm/i915/Makefile | 1 + drivers/gpu/drm/i915/gt/intel_engine_cs.c | 4 +- .../gpu/drm/i915/gt/uc/abi/guc_actions_abi.h | 8 + drivers/gpu/drm/i915/gt/uc/guc_capture_fwif.h | 85 ++ drivers/gpu/drm/i915/gt/uc/intel_guc.c | 55 +- drivers/gpu/drm/i915/gt/uc/intel_guc.h | 15 +- drivers/gpu/drm/i915/gt/uc/intel_guc_ads.c | 32 +- .../gpu/drm/i915/gt/uc/intel_guc_capture.c | 1274 +++++++++++++++++ .../gpu/drm/i915/gt/uc/intel_guc_capture.h | 30 + drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c | 3 + drivers/gpu/drm/i915/gt/uc/intel_guc_fwif.h | 43 +- drivers/gpu/drm/i915/gt/uc/intel_guc_log.c | 162 ++- drivers/gpu/drm/i915/gt/uc/intel_guc_log.h | 23 +- .../gpu/drm/i915/gt/uc/intel_guc_submission.c | 22 + drivers/gpu/drm/i915/i915_gpu_error.c | 65 +- drivers/gpu/drm/i915/i915_gpu_error.h | 14 + 16 files changed, 1731 insertions(+), 105 deletions(-) create mode 100644 drivers/gpu/drm/i915/gt/uc/guc_capture_fwif.h create mode 100644 drivers/gpu/drm/i915/gt/uc/intel_guc_capture.c create mode 100644 drivers/gpu/drm/i915/gt/uc/intel_guc_capture.h -- 2.25.1

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dri-devel January 2022