- 27 Dec, 2019 1 commit
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EMPTY/FULL are HW input/output FIFO condition identifer, which are useful information for addressing the problem, so expose them. Signed-off-by:
james qian wang (Arm Technology China) <james.qian.wang@arm.com> Reviewed-by:
Mihail Atanassov <mihail.atanassov@arm.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191212072737.30116-1-james.qian.wang@arm.com
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- 26 Dec, 2019 6 commits
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Jagan Teki authored
The MIPI DSI controller in Allwinner A64 is similar to A33. But unlike A33, A64 doesn't have DSI_SCLK gating so add compatible for Allwinner A64 with uninitialized has_mod_clk driver. Signed-off-by:
Jagan Teki <jagan@amarulasolutions.com> Tested-by:
Merlijn Wajer <merlijn@wizzup.org> Signed-off-by:
Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/20191222132229.30276-6-jagan@amarulasolutions.com
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Jagan Teki authored
regmap has special API to enable the controller bus clock while initializing register space, and current driver is using devm_regmap_init_mmio_clk which require to specify bus clk_id argument as "bus" But, the usage of clocks are varies between different Allwinner DSI controllers. Clocking in A33 would need bus and mod clocks where as A64 would need only bus clock. Since A64 support only single bus clock, it is optional to specify the clock-names on the controller device tree node. So using NULL on clk_id would get the attached clock. To support clk_id as "bus" and "NULL" during clock enablement between controllers, this patch add generic code to handle the bus clock using regmap_mmio_attach_clk with associated regmap APIs. Signed-off-by:
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Jagan Teki authored
As per the user manual, look like mod clock is not mandatory for all Allwinner MIPI DSI controllers, it is connected to CLK_DSI_SCLK for A31 and not available in A64. So, add compatible check for A31 and get mod clock accordingly. Tested-by:
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Jagan Teki authored
The MIPI DSI PHY controller on Allwinner A64 is similar on the one on A31. Add A64 compatible and append A31 compatible as fallback. Reviewed-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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Jagan Teki authored
The MIPI DSI controller in Allwinner A64 is similar to A33. But unlike A33, A64 doesn't have DSI_SCLK gating so it is valid to have separate compatible for A64 on the same driver. DSI_SCLK uses mod clock-names on dt-bindings, so the same is not required for A64. On that note - A64 require minimum of 1 clock like the bus clock - A33 require minimum of 2 clocks like both bus, mod clocks So, update dt-bindings so-that it can document both A33, A64 bindings requirements. Reviewed-by:
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Ondrej Jirman authored
Shut down the display engine during suspend. Signed-off-by:
Ondrej Jirman <megous@megous.com> Signed-off-by:
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- 22 Dec, 2019 2 commits
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Thierry Reding authored
CRTC is an abbreviation and should be all caps in prose. Update all kerneldoc comments to use a consistent spelling. v2: remove hunk unrelated to the CRTC spelling fixes Reviewed-by:
Thomas Zimmermann <tzimmermann@suse.de> Signed-off-by:
Thierry Reding <treding@nvidia.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191206135336.2084564-2-thierry.reding@gmail.com
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Thierry Reding authored
These are just a couple of things that I came across as I was reading through the code and comments. v2: added one more hunk that ended up in the wrong patch Reviewed-by:
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- 20 Dec, 2019 1 commit
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Yannick Fertré authored
The pin control must be set to default as soon as possible to establish a good video link between tv & bridge hdmi (encoder mode set is call before encoder enable). Signed-off-by:
Yannick Fertre <yannick.fertre@st.com> Acked-by:
Philippe Cornu <philippe.cornu@st.com> Signed-off-by:
Benjamin Gaignard <benjamin.gaignard@st.com> Link: https://patchwork.freedesktop.org/patch/msgid/1574850218-13257-1-git-send-email-yannick.fertre@st.com
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- 19 Dec, 2019 11 commits
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Daniel Vetter authored
Jani has merged a new set of logging functions, which we hope to be the One True solution now, pinky promises: commit fb6c7ab8 Author: Jani Nikula <jani.nikula@intel.com> Date: Tue Dec 10 14:30:43 2019 +0200 drm/print: introduce new struct drm_device based logging macros Update the todo entry to match the new preference. v2: Fix spelling issue Sam noticed. Cc: Jani Nikula <jani.nikula@intel.com> Cc: Sean Paul <sean@poorly.run> Cc: Wambui Karuga <wambui.karugax@gmail.com> Acked-by:
Jani Nikula <jani.nikula@intel.com> Acked-by:
Sam Ravnborg <sam@ravnborg.org> Signed-off-by:
Daniel Vetter <daniel.vetter@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191219161722.2779994-1-daniel.vetter@ffwll.ch
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Colin Ian King authored
Pointer fb is being dereferenced when assigning dev before it is null checked. Fix this by only dereferencing dev after the null check. Fixes: 6b7ce2c4 ("drm/gma500: Remove struct psb_fbdev") Signed-off-by:
Colin Ian King <colin.king@canonical.com> Signed-off-by:
Patrik Jakobsson <patrik.r.jakobsson@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191216162136.270114-1-colin.king@canonical.com
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Jani Nikula authored
Prefer drm_dbg_kms() and drm_err() over all other logging. Reviewed-by:
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Jani Nikula authored
Prefer drm_dbg_kms(), drm_info(), and drm_err() over all other logging. This is about KMS so switch to the KMS category while at it. Reviewed-by:
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Jani Nikula authored
Prefer drm_dbg_kms() and drm_err() over DRM_DEV_DEBUG_KMS() and DRM_DEV_ERROR(). Reviewed-by:
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Gurchetan Singh authored
That's the only file that uses it. Signed-off-by:
Gurchetan Singh <gurchetansingh@chromium.org> Link: http://patchwork.freedesktop.org/patch/msgid/20191219005733.18960-6-gurchetansingh@chromium.orgSigned-off-by:
Gerd Hoffmann <kraxel@redhat.com>
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Gurchetan Singh authored
That's the only file that uses it. Signed-off-by:
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Gurchetan Singh authored
This is a little simpler. Signed-off-by:
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Gurchetan Singh authored
Not used anywhere. Signed-off-by:
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Gurchetan Singh authored
Not used anywhere else. Signed-off-by:
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Gurchetan Singh authored
Not used anywhere else. Signed-off-by:
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- 18 Dec, 2019 11 commits
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Fabrizio Castro authored
At this point in time, compatible string "thine,thc63lvdm83d" is backed by the lvds-codec driver, and the documentation contained in thine,thc63lvdm83d.txt is basically the same as the one contained in lvds-codec.yaml (generic fallback compatible string aside), therefore absorb thine,thc63lvdm83d.txt. Signed-off-by:
Fabrizio Castro <fabrizio.castro@bp.renesas.com> Reviewed-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Signed-off-by:
Neil Armstrong <narmstrong@baylibre.com> Link: https://patchwork.freedesktop.org/patch/msgid/ <1573660292-10629-14-git-send-email-fabrizio.castro@bp.renesas.com
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Fabrizio Castro authored
The DS90CF384A from TI is a transparent LVDS receiver (decoder), and therefore it is compatible with the lvds-codec driver and bindings. Document the ti,ds90cf384a compatible string with the dt-bindings. No driver change required. Signed-off-by:
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Fabrizio Castro authored
In an effort to repurpose lvds-encoder.c to also serve the function of LVDS decoders, we ended up defining a new "generic" compatible string ("lvds-decoder"), therefore adapt the dt schema to allow for the new compatible string. Signed-off-by: -
Fabrizio Castro authored
The probe function needs to get ahold of the panel device tree node, and it achieves that by using a combination of of_graph_get_port_by_id, of_get_child_by_name, and of_graph_get_remote_port_parent. We can achieve the same goal by replacing those calls with a call to of_graph_get_remote_node these days. Signed-off-by:
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Fabrizio Castro authored
Add support for transparent LVDS decoders by adding a new compatible string ("lvds-decoder") to the driver. This patch also adds member connector_type to struct lvds_codec, and that's because LVDS decoders have a different connector type from LVDS encoders. We fill this new member up with the data matching the compatible string. Signed-off-by:Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by:
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Fabrizio Castro authored
lvds-encoder.c implementation is also suitable for LVDS decoders, not just LVDS encoders. Instead of creating a new driver for addressing support for transparent LVDS decoders, repurpose lvds-encoder.c for the greater good with this patch. This patch only "rebrands" the lvds-encoder.c driver, to make it suitable for hosting LVDS decoders support. The actual support for LVDS decoders will come with a later patch. Signed-off-by:
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Fabrizio Castro authored
Compatible string "ti,sn75lvds83" is being used by device tree rk3188-bqedison2qc.dts, but it's not documented anywhere, therefore document it within lvds-transmitter.yaml. Signed-off-by:
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Fabrizio Castro authored
ti,ds90c185.txt documents LVDS encoders using the same driver as the one documented by lvds-transmitter.yaml. Since the properties listed in ti,ds90c185.txt are the same as the ones listed in lvds-transmitter.yaml, absorb the dt-binding into lvds-transmitter.yaml. Signed-off-by:
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Fabrizio Castro authored
Add documentation for property powerdown-gpios. The property is optional. Signed-off-by:
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Fabrizio Castro authored
Convert the lvds-transmitter binding to DT schema format using json-schema. Signed-off-by:
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Gurchetan Singh authored
I'm just going to put Chia's review comment here since it sums the issue rather nicely: "(1) Semantically, a dma-buf is in DMA domain. CPU access from the importer must be surrounded by {begin,end}_cpu_access. This gives the exporter a chance to move the buffer to the CPU domain temporarily. (2) When the exporter itself has other means to do CPU access, it is only reasonable for the exporter to move the buffer to the CPU domain before access, and to the DMA domain after access. The exporter can potentially reuse {begin,end}_cpu_access for that purpose. Because of (1), udmabuf does need to implement the {begin,end}_cpu_access hooks. But "begin" should mean dma_sync_sg_for_cpu and "end" should mean dma_sync_sg_for_device. Because of (2), if userspace wants to continuing accessing through the memfd mapping, it should call udmabuf's {begin,end}_cpu_access to avoid cache issues." Reported-by:Chia-I Wu <olvaffe@gmail.com> Suggested-by:
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- 17 Dec, 2019 8 commits
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Linus Walleij authored
The video DSI mode had not really been tested. These fixes makes it more likely to work on real hardware: - Put the active width (x width) in the right bits and the VSA (vertical sync active) in the right bits (those were swapped). - Calculate the packet sizes in bytes as in the vendor driver, rather than in bits. Test the calculations agains a spreadsheet and confirmed by debug prints to be reasonable. - Also verified the register values with relative confidence to register dumps from the Samsung GT-I8190 boot loader graphics. We are not identical but not off by far either. - Error out if the current mode and refresh frequency doesn't work out. (In the future we may simply want to scale down the vrefresh.) - Handle negative result in front/back/sync packages and fall back to zero like in the vendor driver. - Put in lots of clarifying comments and references to the documentation where the code is hard to understand. - Set the DSI_VID_VCA_SETTING2 field DSI_VID_VCA_SETTING2_MAX_LINE_LIMIT to blkline_pck - 6 as in the vendor driver and mask the field properly. - Set the DSI_VID_VCA_SETTING1 field DSI_VID_VCA_SETTING1_MAX_BURST_LIMIT to blkeol_pck - 6 to blkeol_duration - 6 as in the vendor driver. Cc: Stephan Gerhold <stephan@gerhold.net> Fixes: 5fc537bf ("drm/mcde: Add new driver for ST-Ericsson MCDE") Link: https://patchwork.freedesktop.org/patch/msgid/20191217150959.17215-1-linus.walleij@linaro.orgReviewed-by:
Stephan Gerhold <stephan@gerhold.net> Signed-off-by:
Linus Walleij <linus.walleij@linaro.org>
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Andy Shevchenko authored
The initial commit followed by the fix didn't take into consideration the case: CONFIG_DRM_PANEL=y CONFIG_BACKLIGHT_CLASS_DEVICE=m CONFIG_DRM_I915=y where symbol devm_of_find_backlight() is not reachable from DRM subsystem. Quick fix is to avoid drm_panel_of_backlight() from exporting in such case. Fixes: 907aa265 ("drm/drm_panel: fix EXPORT of drm_panel_of_backlight") Reported-by:
Randy Dunlap <rdunlap@infradead.org> Acked-by: Randy Dunlap <rdunlap@infradead.org> # build-tested Cc: Linus Walleij <linus.walleij@linaro.org> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Cc: Thierry Reding <thierry.reding@gmail.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Sean Paul <sean@poorly.run> Cc: David Airlie <airlied@linux.ie> Cc: Daniel Vetter <daniel@ffwll.ch> Cc: Maxime Ripard <mripard@kernel.org> Cc: dri-devel@lists.freedesktop.org Signed-off-by:
Andy Shevchenko <andriy.shevchenko@linux.intel.com> Signed-off-by:
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zhong jiang authored
Fix the following sparse warning. drivers/dma-buf/dma-heap.c:109:14: warning: symbol 'dma_heap_ioctl_cmds' was not declared. Should it be static? Acked-by:
Andrew F. Davis <afd@ti.com> Acked-by:
John Stultz <john.stultz@linaro.org> Signed-off-by:
zhong jiang <zhongjiang@huawei.com> Signed-off-by:
Sumit Semwal <sumit.semwal@linaro.org> [sumits: rebased over IOCTL rename patches] Link: https://patchwork.freedesktop.org/patch/msgid/20191217190822.1969-1-sumit.semwal@linaro.org
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Colin Ian King authored
The -ENOTTY error return path does not free the allocated kdata as it returns directly. Fix this by returning via the error handling label err. Addresses-Coverity: ("Resource leak") Fixes: c02a81fb ("dma-buf: Add dma-buf heaps framework") Signed-off-by: -
Aditya Pakki authored
In drm_dev_init, parent is checked for NULL via assert after checked in devm_drm_dev_init(). The patch removes the duplicate check and replaces the assertion with WARN_ON. Further, it returns -EINVAL consistent with the usage in devm_drm_dev_init. Signed-off-by:
Aditya Pakki <pakki001@umn.edu> Signed-off-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20191215194345.4679-1-pakki001@umn.edu
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Daniel Vetter authored
Checking both is one too much, so wrap a WARN_ON around it to stope the copypasta. Acked-by:
CK Hu <ck.hu@mediatek.com> Acked-by:
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Daniel Vetter authored
Checking both is one too much, so wrap a WARN_ON around it to stope the copypasta. Acked-by:
Liviu Dudau <liviu.dudau@arm.com> Acked-by:
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Daniel Vetter authored
I'll add more fancy logic to them soon, so everyone really has to use them. Plus they already provide some nice additional debug infrastructure on top of direct ww_mutex usage for the fences tracked by dma_resv. v2: Fix the lost _interruptible (Michael) Acked-by:
Michael J. Ruhl <michael.j.ruhl@intel.com> Reviewed-by:
Lucas Stach <l.stach@pengutronix.de> Signed-off-by:
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