dri-devel September 2019

dri-devel@lists.freedesktop.org

315 participants
2278 discussions

[PATCH v2 00/21] drm: Add support for bus-format negotiation
by Boris Brezillon 22 Oct '19

22 Oct '19

This patch series aims at adding support for runtime bus-format negotiation between all elements of the 'encoder -> bridges -> connector/display' section of the pipeline. In order to support that, we need drm bridges to fully take part in the atomic state validation process, which requires adding a drm_bridge_state and a new drm_bridge_funcs.atomic_check() hook. Once those basic building blocks are in place, we can add new hooks to allow bus format negotiation (those are called just before ->atomic_check()). The bus format selection is done at runtime by testing all possible combinations across the whole bridge chain until one is reported to work. Major changes since the RFC: * Add a dummy bridge to the drm_encoder object so that vc4 and exynos DSI drivers can implement the pre_enable/post_disable hooks instead of manually setting encoder->bridge to NULL to control the enable/disable sequence. This change is also a first step towards drm_bridge/drm_encoder unification. New encoder drivers should stop implementing drm_encoder_helper_funcs and switch to drm_bridge_funcs. Existing drivers can be converted progressively (already have a branch where I started converting some of them [1]) * rework the bus format negotiation to give more control to bridge drivers in the selection process (driver can select at runtime which input bus format they support for a specific output bus format based on any information available in the connector, crtc and bridge state. A more detailed changelog is provided in each patch. This patch series is also available here [2]. Thanks, Boris [1]https://github.com/bbrezillon/linux-0day/commits/drm-encoder-bridge [2]https://github.com/bbrezillon/linux-0day/commits/drm-drm-bridge-busfmt-v2 Boris Brezillon (21): drm: Stop including drm_bridge.h from drm_crtc.h drm: Add a dummy bridge object to drm_encoder drm/vc4: Implement bridge_funcs instead of encoder_helper_funcs drm/exynos: Fix potential unbalanced calls to pm_runtime_put drm/exynos: Don't reset bridge->next drm/exynos: Implement bridge_funcs instead of encoder_helper_funcs drm/bridge: Rename bridge helpers targeting a bridge chain drm/msm: Use drm_attach_bridge() to attach a bridge to an encoder drm/bridge: Introduce drm_bridge_chain_get_next_bridge() drm/bridge: Make the bridge chain a double-linked list drm/bridge: Add the drm_for_each_bridge_in_chain() helper drm/bridge: Add a drm_bridge_state object drm/bridge: Patch atomic hooks to take a drm_bridge_state drm/bridge: Add an ->atomic_check() hook drm/bridge: Add the drm_bridge_chain_get_prev_bridge() helper drm/bridge: Add the necessary bits to support bus format negotiation drm/imx: pd: Use bus format/flags provided by the bridge when available drm/bridge: lvds-encoder: Implement basic bus format negotiation drm/bridge: panel: Propage bus format/flags drm/panel: simple: Add support for Toshiba LTA089AC29000 panel ARM: dts: imx: imx51-zii-rdu1: Fix the display pipeline definition .../display/bridge/lvds-transmitter.txt | 12 + .../display/panel/toshiba,lt089ac29000.txt | 5 +- arch/arm/boot/dts/imx51-zii-rdu1.dts | 24 +- drivers/gpu/drm/arc/arcpgu_hdmi.c | 1 + drivers/gpu/drm/bridge/analogix-anx78xx.c | 1 + .../drm/bridge/analogix/analogix_dp_core.c | 13 +- drivers/gpu/drm/bridge/dumb-vga-dac.c | 1 + drivers/gpu/drm/bridge/lvds-encoder.c | 105 +++ .../bridge/megachips-stdpxxxx-ge-b850v3-fw.c | 1 + drivers/gpu/drm/bridge/nxp-ptn3460.c | 1 + drivers/gpu/drm/bridge/panel.c | 31 + drivers/gpu/drm/bridge/parade-ps8622.c | 1 + drivers/gpu/drm/bridge/sii902x.c | 1 + drivers/gpu/drm/bridge/sii9234.c | 1 + drivers/gpu/drm/bridge/sil-sii8620.c | 1 + drivers/gpu/drm/bridge/synopsys/dw-hdmi.c | 1 + drivers/gpu/drm/bridge/tc358764.c | 1 + drivers/gpu/drm/bridge/tc358767.c | 1 + drivers/gpu/drm/bridge/ti-sn65dsi86.c | 1 + drivers/gpu/drm/bridge/ti-tfp410.c | 1 + drivers/gpu/drm/drm_atomic.c | 39 + drivers/gpu/drm/drm_atomic_helper.c | 46 +- drivers/gpu/drm/drm_bridge.c | 749 ++++++++++++++---- drivers/gpu/drm/drm_crtc_helper.c | 29 +- drivers/gpu/drm/drm_encoder.c | 26 +- drivers/gpu/drm/drm_probe_helper.c | 3 +- drivers/gpu/drm/drm_simple_kms_helper.c | 1 + drivers/gpu/drm/exynos/exynos_dp.c | 2 +- drivers/gpu/drm/exynos/exynos_drm_dsi.c | 70 +- drivers/gpu/drm/exynos/exynos_drm_mic.c | 1 + drivers/gpu/drm/exynos/exynos_hdmi.c | 1 + drivers/gpu/drm/fsl-dcu/fsl_dcu_drm_rgb.c | 1 + drivers/gpu/drm/hisilicon/kirin/dw_drm_dsi.c | 1 + drivers/gpu/drm/i2c/tda998x_drv.c | 1 + drivers/gpu/drm/imx/imx-ldb.c | 1 + drivers/gpu/drm/imx/parallel-display.c | 137 +++- drivers/gpu/drm/ingenic/ingenic-drm.c | 1 + drivers/gpu/drm/mediatek/mtk_dpi.c | 1 + drivers/gpu/drm/mediatek/mtk_dsi.c | 1 + drivers/gpu/drm/mediatek/mtk_hdmi.c | 9 +- drivers/gpu/drm/msm/dsi/dsi.h | 1 + drivers/gpu/drm/msm/edp/edp.c | 4 +- drivers/gpu/drm/msm/edp/edp.h | 1 + drivers/gpu/drm/msm/edp/edp_bridge.c | 10 +- drivers/gpu/drm/msm/hdmi/hdmi.c | 4 +- drivers/gpu/drm/msm/hdmi/hdmi.h | 2 + drivers/gpu/drm/omapdrm/dss/output.c | 1 + drivers/gpu/drm/omapdrm/omap_drv.c | 5 +- drivers/gpu/drm/omapdrm/omap_encoder.c | 4 +- drivers/gpu/drm/panel/panel-simple.c | 36 + drivers/gpu/drm/rcar-du/rcar_du_crtc.c | 10 +- drivers/gpu/drm/rcar-du/rcar_du_encoder.c | 1 + drivers/gpu/drm/rockchip/rockchip_lvds.c | 1 + drivers/gpu/drm/rockchip/rockchip_rgb.c | 1 + drivers/gpu/drm/sti/sti_dvo.c | 1 + drivers/gpu/drm/sti/sti_hda.c | 1 + drivers/gpu/drm/sti/sti_hdmi.c | 1 + drivers/gpu/drm/sun4i/sun4i_lvds.c | 1 + drivers/gpu/drm/sun4i/sun4i_rgb.c | 1 + drivers/gpu/drm/sun4i/sun4i_tcon.c | 1 + drivers/gpu/drm/tilcdc/tilcdc_external.c | 1 + drivers/gpu/drm/vc4/vc4_dsi.c | 73 +- include/drm/drm_atomic.h | 3 + include/drm/drm_bridge.h | 335 +++++++- include/drm/drm_crtc.h | 1 - include/drm/drm_encoder.h | 23 +- 66 files changed, 1533 insertions(+), 314 deletions(-) -- 2.21.0

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[RESEND][PATCH v8 0/5] DMA-BUF Heaps (destaging ION)
by John Stultz 22 Oct '19

22 Oct '19

Here is yet another pass at the dma-buf heaps patchset Andrew and I have been working on which tries to destage a fair chunk of ION functionality. The patchset implements per-heap devices which can be opened directly and then an ioctl is used to allocate a dmabuf from the heap. The interface is similar, but much simpler then IONs, only providing an ALLOC ioctl. Also, I've provided relatively simple system and cma heaps. I've booted and tested these patches with AOSP on the HiKey960 using the kernel tree here: https://git.linaro.org/people/john.stultz/android-dev.git/log/?h=dev/dma-bu… And the userspace changes here: https://android-review.googlesource.com/c/device/linaro/hikey/+/909436 Compared to ION, this patchset is missing the system-contig, carveout and chunk heaps, as I don't have a device that uses those, so I'm unable to do much useful validation there. Additionally we have no upstream users of chunk or carveout, and the system-contig has been deprecated in the common/andoid-* kernels, so this should be ok. I've also removed the stats accounting, since any such accounting should be implemented by dma-buf core or the heaps themselves. Most of the changes in this revision are adddressing the more concrete feedback from Christoph (many thanks!). Though I'm not sure if some of the less specific feedback was completely resolved in discussion last time around. Please let me know! New in v8: * Make struct dma_heap_ops consts (Suggested by Christoph) * Add flush_kernel_vmap_range/invalidate_kernel_vmap_range calls (suggested by Christoph) * Condense dma_heap_buffer and heap_helper_buffer (suggested by Christoph) * Get rid of needless struct system_heap (suggested by Christoph) * Fix indentation by using shorter argument names (suggested by Christoph) * Remove unused private_flags value * Add forgotten include file to fix build issue on x86 * Checkpatch whitespace fixups Thoughts and feedback would be greatly appreciated! thanks -john Cc: Laura Abbott <labbott(a)redhat.com> Cc: Benjamin Gaignard <benjamin.gaignard(a)linaro.org> Cc: Sumit Semwal <sumit.semwal(a)linaro.org> Cc: Liam Mark <lmark(a)codeaurora.org> Cc: Pratik Patel <pratikp(a)codeaurora.org> Cc: Brian Starkey <Brian.Starkey(a)arm.com> Cc: Vincent Donnefort <Vincent.Donnefort(a)arm.com> Cc: Sudipto Paul <Sudipto.Paul(a)arm.com> Cc: Andrew F. Davis <afd(a)ti.com> Cc: Christoph Hellwig <hch(a)infradead.org> Cc: Chenbo Feng <fengc(a)google.com> Cc: Alistair Strachan <astrachan(a)google.com> Cc: Hridya Valsaraju <hridya(a)google.com> Cc: dri-devel(a)lists.freedesktop.org Andrew F. Davis (1): dma-buf: Add dma-buf heaps framework John Stultz (4): dma-buf: heaps: Add heap helpers dma-buf: heaps: Add system heap to dmabuf heaps dma-buf: heaps: Add CMA heap to dmabuf heaps kselftests: Add dma-heap test MAINTAINERS | 18 ++ drivers/dma-buf/Kconfig | 11 + drivers/dma-buf/Makefile | 2 + drivers/dma-buf/dma-heap.c | 250 ++++++++++++++++ drivers/dma-buf/heaps/Kconfig | 14 + drivers/dma-buf/heaps/Makefile | 4 + drivers/dma-buf/heaps/cma_heap.c | 164 +++++++++++ drivers/dma-buf/heaps/heap-helpers.c | 269 ++++++++++++++++++ drivers/dma-buf/heaps/heap-helpers.h | 55 ++++ drivers/dma-buf/heaps/system_heap.c | 122 ++++++++ include/linux/dma-heap.h | 59 ++++ include/uapi/linux/dma-heap.h | 55 ++++ tools/testing/selftests/dmabuf-heaps/Makefile | 9 + .../selftests/dmabuf-heaps/dmabuf-heap.c | 230 +++++++++++++++ 14 files changed, 1262 insertions(+) create mode 100644 drivers/dma-buf/dma-heap.c create mode 100644 drivers/dma-buf/heaps/Kconfig create mode 100644 drivers/dma-buf/heaps/Makefile create mode 100644 drivers/dma-buf/heaps/cma_heap.c create mode 100644 drivers/dma-buf/heaps/heap-helpers.c create mode 100644 drivers/dma-buf/heaps/heap-helpers.h create mode 100644 drivers/dma-buf/heaps/system_heap.c create mode 100644 include/linux/dma-heap.h create mode 100644 include/uapi/linux/dma-heap.h create mode 100644 tools/testing/selftests/dmabuf-heaps/Makefile create mode 100644 tools/testing/selftests/dmabuf-heaps/dmabuf-heap.c -- 2.17.1

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[PATCH v4 0/2] drm/panel: Add device link in drm_panel_attach()
by Jyri Sarha 22 Oct '19

22 Oct '19

I guess the first patch should be mergable. With the second, maybe it is better to wait until we have a full solution including the bridges too. What should I do to get the first patch merged? The third version of these patches can be found here: https://lists.freedesktop.org/archives/dri-devel/2018-April/174221.html Changes since v3: - "drm/panel: Remove drm_panel_detach() calls from all panel drives" - Update kerneldoc for drm_panel_detach() and drm_panel_attach() according to Daniel Vetter's suugestion and add his reviewed-by. - "drm/panel: Add device_link from panel device to drm device" - none The first patch could be squashed to second, but kept is separate since I think it is correct even without the second patch. With these patches unbinding a panel driver in use does not cause nasty backtraces and corrupted drm core structures, but instead it cleanly unbinds the drm master device at the same time. The only down side (currently[1]) is that the drm device does not reprobe if the panel driver is bound again, but everything should work if the drm master driver is bound manually. Best regards, Jyri Jyri Sarha (2): drm/panel: Remove drm_panel_detach() calls from all panel drives drm/panel: Add device_link from panel device to drm device drivers/gpu/drm/drm_panel.c | 16 ++++++++++++++++ drivers/gpu/drm/panel/panel-innolux-p079zca.c | 1 - drivers/gpu/drm/panel/panel-jdi-lt070me05000.c | 1 - drivers/gpu/drm/panel/panel-lvds.c | 1 - drivers/gpu/drm/panel/panel-panasonic-vvx10f034n00.c | 1 - drivers/gpu/drm/panel/panel-seiko-43wvf1g.c | 1 - drivers/gpu/drm/panel/panel-sharp-lq101r1sx01.c | 1 - drivers/gpu/drm/panel/panel-sharp-ls043t1le01.c | 1 - drivers/gpu/drm/panel/panel-simple.c | 1 - drivers/gpu/drm/panel/panel-sitronix-st7789v.c | 1 - include/drm/drm_panel.h | 1 + 11 files changed, 17 insertions(+), 9 deletions(-) -- Texas Instruments Finland Oy, Porkkalankatu 22, 00180 Helsinki. Y-tunnus/Business ID: 0615521-4. Kotipaikka/Domicile: Helsinki

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[PATCH v2] drm/komeda: Fix typos in komeda_splitter_validate
by Mihail Atanassov 21 Oct '19

21 Oct '19

Fix both the string and the struct member being printed. Changes since v1: - Now with a bonus grammar fix, too. Fixes: 264b9436d23b ("drm/komeda: Enable writeback split support") Signed-off-by: Mihail Atanassov <mihail.atanassov(a)arm.com> --- drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c b/drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c index 950235af1e79..2b624bfe1751 100644 --- a/drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c +++ b/drivers/gpu/drm/arm/display/komeda/komeda_pipeline_state.c @@ -564,8 +564,8 @@ komeda_splitter_validate(struct komeda_splitter *splitter, } if (!in_range(&splitter->vsize, dflow->in_h)) { - DRM_DEBUG_ATOMIC("split in_in: %d exceed the acceptable range.\n", - dflow->in_w); + DRM_DEBUG_ATOMIC("split in_h: %d exceeds the acceptable range.\n", + dflow->in_h); return -EINVAL; } -- 2.23.0

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[PATCH 1/3] drm/ttm: fix busy reference in ttm_mem_evict_first
by Christian König 21 Oct '19

21 Oct '19

The busy BO might actually be already deleted, so grab only a list reference. Signed-off-by: Christian König <christian.koenig(a)amd.com> --- drivers/gpu/drm/ttm/ttm_bo.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index 881cf26d698e..02f301e1ff29 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -875,11 +875,11 @@ static int ttm_mem_evict_first(struct ttm_bo_device *bdev, if (!bo) { if (busy_bo) - ttm_bo_get(busy_bo); + kref_get(&busy_bo->list_kref); spin_unlock(&glob->lru_lock); ret = ttm_mem_evict_wait_busy(busy_bo, ctx, ticket); if (busy_bo) - ttm_bo_put(busy_bo); + kref_put(&busy_bo->list_kref, ttm_bo_release_list); return ret; } -- 2.17.1

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[PATCH v6 0/2] drm: bridge: Add NWL MIPI DSI host controller support
by Guido Günther 19 Oct '19

19 Oct '19

This adds initial support for the NWL MIPI DSI Host controller found on i.MX8 SoCs. It adds support for the i.MX8MQ but the same IP core can also be found on e.g. i.MX8QXP. I added the necessary hooks to support other imx8 variants but since I only have imx8mq boards to test I omitted the platform data for other SoCs. The code is based on NXPs BSP so I added Robert Chiras as Co-authored-by. The most notable changes over the BSP driver are - Calculate HS mode timing from phy_configure_opts_mipi_dphy - Perform all clock setup via DT - Merge nwl-imx and nwl drivers - Add B0 silion revision quirk - become a bridge driver to hook into mxsfb (from what I read[0] DCSS, which also can drive the nwl on the imx8mq will likely not become part of imx-display-subsystem so it makes sense to make it drive a bridge for dsi as well). - Use panel_bridge to attach the panel - Use multiplex framework instead of accessing syscon directly This has been tested on a Librem 5 devkit using mxsfb with Robert's patches[1] and the rocktech-jh057n00900 panel driver on next-20190807. The DCSS can later on also act as input source too. Changes from v5: - Per review comments by Andrzej Hajda https://lists.freedesktop.org/archives/dri-devel/2019-September/235281.html - Fix include file ordering - Add a comment to nwl_dsi_platform_data that will allow to add support at least for the i.MX8QM - Merge driver into a single file plus the register defs in a separate header - Make more functions and structs static Changes from v4: - Collect Reviewed-by: from Rob Herring, thanks! https://lists.freedesktop.org/archives/dri-devel/2019-September/233979.html - Spotted by kbuild test robot <lkp(a)intel.com> https://lists.freedesktop.org/archives/dri-devel/2019-September/233860.html https://lists.freedesktop.org/archives/dri-devel/2019-September/233863.html - fix format string for size_t - Use DIV64_U64_ROUND_UP to fix build on 32 bit architectures We can't use simple shift sind d and n are similar in size and we need full precision - Fix debug cfg_t_post debug print out - Avoid PSEC_PER_SEC - Move timeout / overflow handling out of nwl_dsi_finish_transmission, it would never end up being reported since the call to the function was guarded by flags. - Drop 'support for' from KConfig title to make it match the other drivers in that submenu Changes from v3: - Per review comments by Robert Chiras https://lists.freedesktop.org/archives/dri-devel/2019-August/232580.html - Add Robert's {Signed-off,Tested}-by: - Respect number of lanes when calculting bandwidth limits - Drop duplicate NWL_DSI_ENABLE_MULT_PKTS setup - Per testing by Rober Chiras https://lists.freedesktop.org/archives/dri-devel/2019-August/233688.html - Drop duplicate (and too early) drm_bridge_add() in nwl_dir_probe() that made mxsfb fail to connect to the bridge since the panel_bridge was not up yet. drm_bridge_add() happens in nwl_dsi_host_attach() where after the panel_bridge was set up. - Per review comments by Rob Herring on bindings https://lists.freedesktop.org/archives/dri-devel/2019-August/233196.html - drop description from power-domains and resets - allow BSD 2 clause license as well - make ports more specific - add #address-cells, #size-cells as required - use additionalProperties - panel is of type object Changes from v2: - Per review comments by Rob Herring https://lists.freedesktop.org/archives/dri-devel/2019-August/230448.html - bindings: - Simplify by restricting to fsl,imx8mq-nwl-dsi - document reset lines - add port@{0,1} - use a real compatible string for the panel - resets are required - Per review comments by Arnd Bergmann https://lists.freedesktop.org/archives/dri-devel/2019-August/230868.html - Don't access iomuxc_gpr regs directly. This allows us to drop the first patch in the series with the iomuxc_gpr field defines. - Per review comments by Laurent Pinchart Fix wording in bindings - Add mux-controls to bindings - Don't print error message on dphy probe deferral Changes from v1: - Per review comments by Sam Ravnborg https://lists.freedesktop.org/archives/dri-devel/2019-July/228130.html - Change binding docs to YAML - build: Don't always visit imx-nwl/ - build: Add header-test-y - Sort headers according to DRM convention - Use drm_display_mode instead of videmode - Per review comments by Fabio Estevam https://lists.freedesktop.org/archives/dri-devel/2019-July/228299.html - Don't restrict build to ARCH_MXC - Drop unused includes - Drop unreachable code in imx_nwl_dsi_bridge_mode_fixup() - Drop remaining calls of dev_err() and use DRM_DEV_ERR() consistently. - Use devm_platform_ioremap_resource() - Drop devm_free_irq() in probe() error path - Use single line comments where sufficient - Use <linux/time64.h> instead of defining USEC_PER_SEC - Make input source select imx8 specific - Drop <asm/unaligned.h> inclusion (after removal of get_unaligned_le32) - Drop all EXPORT_SYMBOL_GPL() for functions used in the same module but different source files. - Drop nwl_dsi_enable_{rx,tx}_clock() by invoking clk_prepare_enable() directly - Remove pointless comment - Laurent Pinchart https://lists.freedesktop.org/archives/dri-devel/2019-July/228313.html https://lists.freedesktop.org/archives/dri-devel/2019-July/228308.html - Drop (on iMX8MQ) unused csr regmap - Use NWL_MAX_PLATFORM_CLOCKS everywhere - Drop get_unaligned_le32() usage - remove duplicate 'for the' in binding docs - Don't include unused <linux/clk-provider.h> - Don't include unused <linux/component.h> - Drop dpms_mode for tracking state, trust the drm layer on that - Use pm_runtime_put() instead of pm_runtime_put_sync() - Don't overwrite encoder type - Make imx_nwl_platform_data const - Use the reset controller API instead of open coding that platform specific part - Use <linux/bitfield.h> intead of making up our own defines - name mipi_dsi_transfer less generic: nwl_dsi_transfer - ensure clean in .remove by calling mipi_dsi_host_unregister. - prefix constants by NWL_DSI_ - properly format transfer_direction enum - simplify platform clock handling - Don't modify state in mode_fixup() and use mode_set() instead - Drop bridge detach(), already handle by nwl_dsi_host_detach() - Drop USE_*_QUIRK() macros - Drop (for now) unused clock defnitions. 'pixel' and 'bypass' clock will be used for i.MX8 SoCs but since they're unused atm drop the definitions - but keep the logic to enable/disable several clocks in place since we know we'll need it in the future. Changes from v0: - Add quirk for IMQ8MQ silicon B0 revision to not mess with the system reset controller on power down since enable() won't work otherwise. - Drop devm_free_irq() handled by the device driver core - Disable tx esc clock after the phy power down to unbreak disable/enable (unblank/blank) - Add ports to dt binding docs - Select GENERIC_PHY_MIPI_DPHY instead of GENERIC_PHY for phy_mipi_dphy_get_default_config - Select DRM_MIPI_DSI - Include drm_print.h to fix build on next-20190408 - Drop some debugging messages - Newline terminate all DRM_ printouts - Turn component driver into a drm bridge [0]: https://lists.freedesktop.org/archives/dri-devel/2019-May/219484.html [1]: https://patchwork.freedesktop.org/series/62822/ To: David Airlie <airlied(a)linux.ie>, Daniel Vetter <daniel(a)ffwll.ch>, Rob Herring <robh+dt(a)kernel.org>, Mark Rutland <mark.rutland(a)arm.com>, Shawn Guo <shawnguo(a)kernel.org>, Sascha Hauer <s.hauer(a)pengutronix.de>, Pengutronix Kernel Team <kernel(a)pengutronix.de>, Fabio Estevam <festevam(a)gmail.com>, NXP Linux Team <linux-imx(a)nxp.com>, Andrzej Hajda <a.hajda(a)samsung.com>, Neil Armstrong <narmstrong(a)baylibre.com>, Laurent Pinchart <Laurent.pinchart(a)ideasonboard.com>, Jonas Karlman <jonas(a)kwiboo.se>, Jernej Skrabec <jernej.skrabec(a)siol.net>, Lee Jones <lee.jones(a)linaro.org>, Guido Günther <agx(a)sigxcpu.org>, dri-devel(a)lists.freedesktop.org, devicetree(a)vger.kernel.org, linux-arm-kernel(a)lists.infradead.org, linux-kernel(a)vger.kernel.org, Robert Chiras <robert.chiras(a)nxp.com>, Sam Ravnborg <sam(a)ravnborg.org>, Fabio Estevam <festevam(a)gmail.com>, Arnd Bergmann <arnd(a)arndb.de>, Andrzej Hajda <a.hajda(a)samsung.com> Guido Günther (2): dt-bindings: display/bridge: Add binding for NWL mipi dsi host controller drm/bridge: Add NWL MIPI DSI host controller support .../bindings/display/bridge/nwl-dsi.yaml | 176 +++ drivers/gpu/drm/bridge/Kconfig | 16 + drivers/gpu/drm/bridge/Makefile | 3 + drivers/gpu/drm/bridge/nwl-dsi.c | 1180 +++++++++++++++++ drivers/gpu/drm/bridge/nwl-dsi.h | 144 ++ 5 files changed, 1519 insertions(+) create mode 100644 Documentation/devicetree/bindings/display/bridge/nwl-dsi.yaml create mode 100644 drivers/gpu/drm/bridge/nwl-dsi.c create mode 100644 drivers/gpu/drm/bridge/nwl-dsi.h -- 2.23.0.rc1

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[PATCH v2 0/2] dts: arm64: imx8mq: Enable gpu passive throttling
by Guido Günther 18 Oct '19

18 Oct '19

Temperature and hysteresis were picked after the CPU. Changes from v1: - Update dt bindings - Fix broken phandle Guido Günther (2): dts: arm64: imx8mq: Enable gpu passive throttling dt-bindings: etnaviv: Add #cooling-cells .../bindings/display/etnaviv/etnaviv-drm.txt | 1 + arch/arm64/boot/dts/freescale/imx8mq.dtsi | 15 +++++++++++++++ 2 files changed, 16 insertions(+) -- 2.23.0.rc1

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[PATCH 0/1] drm/syncobj: add sideband payload
by Lionel Landwerlin 18 Oct '19

18 Oct '19

Hi all, Just explaining what is being changed here compared to v6 : We just noticed that some of our CTS runs are flaky because when importing a dma fence into a drm syncobj we do not update the atomic binary payload. This leads to issues when the userspace drivers tries to add new points to the timeline because the atomic binary payload may then have a value inferior to the seqno of the new installed fence. Cheers, Lionel Landwerlin (1): drm/syncobj: add sideband payload drivers/gpu/drm/drm_internal.h | 2 ++ drivers/gpu/drm/drm_ioctl.c | 3 ++ drivers/gpu/drm/drm_syncobj.c | 64 ++++++++++++++++++++++++++++++++-- include/drm/drm_syncobj.h | 9 +++++ include/uapi/drm/drm.h | 17 +++++++++ 5 files changed, 93 insertions(+), 2 deletions(-) -- 2.23.0

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Dynamic DMA-buf locking changes
by Christian König 17 Oct '19

17 Oct '19

Hi everyone, since upstreaming the full dynamic DMA-buf changes turned out more problematic than previously thought I've reverted back to individual patches and separated out only the locking changes. So this patch does NOT contain any new callbacks for pinning/unpinning and move notification, but only the locking changes necessary. As previously discussed when the framework detects that the locking semantics between exporter and importer are different it just falls back to using a cached sgt created during attach time. While separating the patch set I've most likely stumbled over the problem why this previously raised some lockdep warning with i915, it turned out to be just a might_lock() at the wrong place. Please review and/or comment, Christian.

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[PATCH v2 00/11] drm/tinydrm: Remove tinydrm.ko
by Noralf Trønnes 17 Oct '19

17 Oct '19

This series removes the remaining bits of tinydrm.ko. Changes: - Split SPI connector type patch in core and driver changes, expand commit message (Daniel) - Drop moving the mipi_dbi_spi_init() declaration (Sam) - st7586: Forgot to remove the mipi->rotation assignment Note: This depends on a commit that just entered Linus' tree: e6f3f7e4dc76 ("spi: Add spi_is_bpw_supported()") Series is also available here: https://github.com/notro/linux/tree/remove_tinydrm_ko Noralf. Noralf Trønnes (11): drm: Add SPI connector type drm/tinydrm: Use DRM_MODE_CONNECTOR_SPI drm/tinydrm: Use spi_is_bpw_supported() drm/tinydrm: Remove spi debug buffer dumping drm/tinydrm: Remove tinydrm_spi_max_transfer_size() drm/tinydrm: Clean up tinydrm_spi_transfer() drm/tinydrm: Move tinydrm_spi_transfer() drm/tinydrm: Move tinydrm_machine_little_endian() drm/tinydrm/repaper: Don't use tinydrm_display_pipe_init() drm/tinydrm/mipi-dbi: Add mipi_dbi_init_with_formats() drm/tinydrm: Move tinydrm_display_pipe_init() to mipi-dbi Documentation/gpu/tinydrm.rst | 12 - Documentation/gpu/todo.rst | 3 - drivers/gpu/drm/drm_connector.c | 1 + drivers/gpu/drm/tinydrm/Makefile | 1 - drivers/gpu/drm/tinydrm/core/Makefile | 4 - .../gpu/drm/tinydrm/core/tinydrm-helpers.c | 207 -------------- drivers/gpu/drm/tinydrm/core/tinydrm-pipe.c | 179 ------------ drivers/gpu/drm/tinydrm/hx8357d.c | 1 - drivers/gpu/drm/tinydrm/ili9225.c | 5 +- drivers/gpu/drm/tinydrm/ili9341.c | 1 - drivers/gpu/drm/tinydrm/mi0283qt.c | 1 - drivers/gpu/drm/tinydrm/mipi-dbi.c | 254 ++++++++++++++---- drivers/gpu/drm/tinydrm/repaper.c | 58 +++- drivers/gpu/drm/tinydrm/st7586.c | 33 +-- drivers/gpu/drm/tinydrm/st7735r.c | 1 - include/drm/tinydrm/mipi-dbi.h | 18 ++ include/drm/tinydrm/tinydrm-helpers.h | 75 ------ include/uapi/drm/drm_mode.h | 1 + 18 files changed, 283 insertions(+), 572 deletions(-) delete mode 100644 drivers/gpu/drm/tinydrm/core/Makefile delete mode 100644 drivers/gpu/drm/tinydrm/core/tinydrm-helpers.c delete mode 100644 drivers/gpu/drm/tinydrm/core/tinydrm-pipe.c delete mode 100644 include/drm/tinydrm/tinydrm-helpers.h -- 2.20.1

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dri-devel September 2019