- 29 Apr, 2022 5 commits
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Dan Carpenter authored
The "dsi->bus_clk" pointer cannot be an error pointer at this point. The check is confusing and unnecessary. Delete it. Signed-off-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
Maxime Ripard <maxime@cerno.tech> Link: https://patchwork.freedesktop.org/patch/msgid/YmqH71MtoGn2AXUg@kili
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Marek Vasut authored
Per toshiba,tc358767.yaml DT binding document, port@2 the output (e)DP port is optional. In case this port is not described in DT, the bridge driver operates in DPI-to-DP mode. The drm_of_find_panel_or_bridge() call in tc_probe_edp_bridge_endpoint() returns -ENODEV in case port@2 is not present in DT and this specific return value is incorrectly propagated outside of tc_probe_edp_bridge_endpoint() function. All other error values must be propagated and are propagated correctly. Return 0 in case the port@2 is missing instead, that reinstates the original behavior before the commit this patch fixes. Fixes: 8478095a ("drm/bridge: tc358767: Move (e)DP bridge endpoint parsing into dedicated function") Signed-off-by:
Marek Vasut <marex@denx.de> Cc: Jonas Karlman <jonas@kwiboo.se> Cc: Laurent Pinchart <Laurent.pinchart@ideasonboard.com> Cc: Lucas Stach <l.stach@pengutronix.de> Cc: Marek Vasut <marex@denx.de> Cc: Maxime Ripard <maxime@cerno.tech> Cc: Neil Armstrong <narmstrong@baylibre.com> Cc: Robert Foss <robert.foss@linaro.org> Cc: Sam Ravnborg <sam@ravnborg.org> Reviewed-by:
Lucas Stach <l.stach@pengutronix.de> Link: https://patchwork.freedesktop.org/patch/msgid/20220428213132.447890-1-marex@denx.de
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Jani Nikula authored
Drop the kernel-doc for static functions, it's excessive, but retain the info in plain comments. Signed-off-by:
Jani Nikula <jani.nikula@intel.com> Reviewed-by:
Simon Ser <contact@emersion.fr> Link: https://patchwork.freedesktop.org/patch/msgid/20220426091913.1339941-2-jani.nikula@intel.com
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Jani Nikula authored
Fix the below drm/edid kernel-doc warnings: drivers/gpu/drm/drm_edid.c:1589: warning: Function parameter or member '_edid' not described in 'drm_edid_header_is_valid' drivers/gpu/drm/drm_edid.c:1589: warning: Excess function parameter 'raw_edid' description in 'drm_edid_header_is_valid' drivers/gpu/drm/drm_edid.c:1737: warning: Function parameter or member '_block' not described in 'drm_edid_block_valid' drivers/gpu/drm/drm_edid.c:1737: warning: Excess function parameter 'raw_edid' description in 'drm_edid_block_valid' drivers/gpu/drm/drm_edid.c:2136: warning: Function parameter or member 'read_block' not described in 'drm_do_get_edid' drivers/gpu/drm/drm_edid.c:2136: warning: Function parameter or member 'context' not described in 'drm_do_get_edid' drivers/gpu/drm/drm_edid.c:2136: warning: Excess function parameter 'get_edid_block' description in 'drm_do_get_edid' drivers/gpu/drm/drm_edid.c:2136: warning: Excess function parameter 'data' description in 'drm_do_get_edid' Reported-by:
Stephen Rothwell <sfr@canb.auug.org.au> References: https://lore.kernel.org/r/20220406154431.567414c3@canb.auug.org.au References: https://lore.kernel.org/r/20220420162431.2b28ddea@canb.auug.org.auSigned-off-by:
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Javier Martinez Canillas authored
The DRM_DP_AUX_CHARDEV and DRM_DP_CEC Kconfig symbols enable code that use DP helper functions, that are only present if CONFIG_DRM_DISPLAY_DP_HELPER is also enabled. But these don't select the DRM_DISPLAY_DP_HELPER symbol, meaning that it is possible to enable any of them without CONFIG_DRM_DISPLAY_DP_HELPER. That will lead to the following linking errors with the mentioned config: LD vmlinux.o MODPOST vmlinux.symvers MODINFO modules.builtin.modinfo GEN modules.builtin LD .tmp_vmlinux.kallsyms1 KSYMS .tmp_vmlinux.kallsyms1.S AS .tmp_vmlinux.kallsyms1.S LD .tmp_vmlinux.kallsyms2 KSYMS .tmp_vmlinux.kallsyms2.S AS .tmp_vmlinux.kallsyms2.S LD vmlinux SYSMAP System.map SORTTAB vmlinux OBJCOPY arch/arm64/boot/Image MODPOST modules-only.symvers ERROR: modpost: "drm_dp_dpcd_write" [drivers/gpu/drm/display/drm_display_helper.ko] undefined! ERROR: modpost: "drm_dp_read_desc" [drivers/gpu/drm/display/drm_display_helper.ko] undefined! ERROR: modpost: "drm_dp_dpcd_read" [drivers/gpu/drm/display/drm_display_helper.ko] undefined! make[1]: *** [scripts/Makefile.modpost:134: modules-only.symvers] Error 1 make[1]: *** Deleting file 'modules-only.symvers' make: *** [Makefile:1749: modules] Error 2 Besides making these symbols to select CONFIG_DRM_DISPLAY_DP_HELPER, make them to depend on DRM_DISPLAY_HELPER, since can't be enabled without it. Note: It seems this has been an issue for a long time but was made easier to reproduce after the commit 1e0f6642 ("drm/display: Introduce a DRM display-helper module"). Adding a Fixes: tag just to make sure that this fix will be picked for stable once the mentioned change also lands there. Fixes: 1e0f6642 ("drm/display: Introduce a DRM display-helper module") Signed-off-by:
Javier Martinez Canillas <javierm@redhat.com> Acked-by:
Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by:
Lyude Paul <lyude@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220428082244.390859-1-javierm@redhat.com
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- 28 Apr, 2022 3 commits
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Wayne Lin authored
[Why] It's reasonable that we receive NAK while doing DP_REMOTE_DPCD_READ. Downstream device might reply NAK with the reason and source should react accordingly. e.g. 1. When downstream device can't handle corresponding message in time, it then replies NAK as reason been set as DEFER. 2. When multi-function branch-sink device doesn't enumerate virtual DP peer devices for those multi-function down facing ports. Without virtual DPCD, branch device might reply NAK with reason as BAD_PARAM indicating this port can't do aux DPCD read. It's expected result. Not an error. [How] Use drm_dbg_kms() to replace drm_err() when receive NAK. Changes since v1: * drm_dp_mst_topology.c file path changed. Folder was rename from 'dp' to 'display' Signed-off-by:
Wayne Lin <Wayne.Lin@amd.com> Reviewed-by:
Harry Wentland <harry.wentland@amd.com> Reviewed-by:
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Steven Price authored
While the check for format_count > 64 in __drm_universal_plane_init() shouldn't be hit (it's a WARN_ON), in its current position it will then leak the plane->format_types array and fail to call drm_mode_object_unregister() leaking the modeset identifier. Move it to the start of the function to avoid allocating those resources in the first place. Signed-off-by:
Steven Price <steven.price@arm.com> Signed-off-by:
Liviu Dudau <liviu.dudau@arm.com> Link: https://lore.kernel.org/dri-devel/20211203102815.38624-1-steven.price@arm.com/
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Miaoqian Lin authored
The get_sg_table() function does not return NULL. It returns error pointers. Signed-off-by:
Miaoqian Lin <linmq006@gmail.com> Signed-off-by:
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- 27 Apr, 2022 3 commits
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Thomas Zimmermann authored
Add a format helper that converts RGB565 to XRGB8888. Use this function in drm_fb_blit_toio(). Fixes simpledrm output for this combination of formats. UEFI and/or Grub will usually set 32-bit output in XRGB8888 format. The issue can be reproduced by enabling simpledrm and requesting a console framebuffer of different format on the kernel command line; for example nomodeset video=1024x768-16 In this case, conversion helpers will display nothing on the console. The patch makes this work by implementing the rsp conversion helpers. It also enables odd userspace configurations, such as running Xorg with 16-bit color depth on a 32-bit output buffer. v2: * use helpers for struct drm_rect (Javier) * improve commit message (Javier) Signed-off-by:
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Thomas Zimmermann authored
Add a format helper that converts RGB888 to XRGB8888. Use this function in drm_fb_blit_toio(). Fixes simpledrm output for this combination of formats. UEFI and/or Grub will usually set 32-bit output in XRGB8888 format. The issue can be reproduced by enabling simpledrm and requesting a console framebuffer of different format on the kernel command line; for example nomodeset video=1024x768-24 In this case, conversion helpers will display nothing on the console. The patch makes this work by implementing the rsp conversion helpers. It also enables odd userspace configurations, such as running Xorg with 24-bit color depth on a 32-bit output buffer. v2: * use helpers for struct drm_rect (Javier) * improve commit message (Javier) Signed-off-by:
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Thomas Zimmermann authored
Not all possible format conversions are supported yet. Print a warning on unsupported combinations. Signed-off-by:
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- 26 Apr, 2022 22 commits
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Chia-I Wu authored
Otherwise, ring names are marked [UNSAFE-MEMORY]. Signed-off-by:
Chia-I Wu <olvaffe@gmail.com> Cc: Rob Clark <robdclark@chromium.org> Reviewed-by:
Andrey Grodzovsky <andrey.grodzovsky@amd.com> Signed-off-by:
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Chia-I Wu authored
drm_sched_job and drm_run_job have the same prototype. v2: rename the class from drm_sched_job_entity to drm_sched_job (Andrey) Signed-off-by:
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Guo Zhengkui authored
Fix the following coccicheck warning: drivers/gpu/drm/nouveau/nvkm/subdev/devinit/gt215.c:71:5-12: Unneeded variable: "disable". Return "0ULL" on line 85. Signed-off-by:
Guo Zhengkui <guozhengkui@vivo.com> Reviewed-by:
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Tom Rix authored
Sparse reports these issues wndwgv100.c:120:1: warning: symbol 'gv100_disp_wndw_mthd' was not declared. Should it be static? wndwgv100.c:140:1: warning: symbol 'gv100_disp_wndw' was not declared. Should it be static? These variable are only used in wndwgv100.c. Single file variables should be static. So use static as their storage-class specifiers. Signed-off-by:
Tom Rix <trix@redhat.com> Reviewed-by:
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Tom Rix authored
Sparse reports this issue wimmgv100.c:39:1: warning: symbol 'gv100_disp_wimm' was not declared. Should it be static? This variable is only used in wimmgv100.c. Single file variables should be static. So use static as its storage-class specifier. Signed-off-by:
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Tom Rix authored
Sparse reports these issues coregv100.c:27:1: warning: symbol 'gv100_disp_core_mthd_base' was not declared. Should it be static? coregv100.c:43:1: warning: symbol 'gv100_disp_core_mthd_sor' was not declared. Should it be static? These variables are only used in coregv100.c. Single file use variables should be static, so add static to their storage-class specifier. Signed-off-by:
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Colin Ian King authored
In the unlikely event that pointer perfmon is null the WARN_ON return path occurs after the pointer has already been deferenced. Fix this by only dereferencing perfmon after it has been null checked. Fixes: 26a4dc29 ("drm/v3d: Expose performance counters to userspace") Signed-off-by:
Colin Ian King <colin.i.king@gmail.com> Reviewed-by:
Juan A. Suarez <jasuarez@igalia.com> Signed-off-by:
Melissa Wen <melissa.srw@gmail.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220424183512.1365683-1-colin.i.king@gmail.com
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Samuel Holland authored
Now that the various blocks in the D1 display engine pipeline are supported, we can enable the overall engine. Acked-by:
Jernej Skrabec <jernej.skrabec@gmail.com> Signed-off-by:
Samuel Holland <samuel@sholland.org> Signed-off-by:
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Samuel Holland authored
D1 has a TCON TOP, so its quirks are similar to those for the R40 TCONs. While there are some register changes, the part of the TCON TV supported by the driver matches the R40 quirks, so that quirks structure can be reused. D1 has the first supported TCON LCD with a TCON TOP, so the TCON LCD needs a new quirks structure. D1's TCON LCD hardware supports LVDS; in fact it provides dual-link LVDS from a single TCON. However, it comes with a brand new LVDS PHY. Since this PHY has not been tested, leave out LVDS driver support for now. Signed-off-by:
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Samuel Holland authored
D1 has a TCON TOP with TCON TV0 and DSI, but no TCON TV1. This puts the DSI clock name at index 1 in clock-output-names. Support this by only incrementing the index for clocks that are actually supported. Signed-off-by:
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Samuel Holland authored
D1 has a display engine with the usual pair of mixers, albeit with relatively few layers. In fact, D1 appears to be the first SoC to have a mixer without any UI layers. Add support for these new variants. Acked-by:
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Samuel Holland authored
D1 changes the MMIO offsets for the CSC blocks in the first mixer. The mixers' ccsc property is used as an index into the ccsc_base array. Use an enumeration to describe this index, and add the new set of offsets. Signed-off-by:
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Samuel Holland authored
D1's mixer 1 has no UI layers, only a single VI layer. That means the mixer can only be used if the primary plane comes from this VI layer. Add the code to handle this case. Signed-off-by:
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Jernej Skrabec authored
Newly introduced mode_set callback in engine structure is a much better place for setting mixer output size and interlace mode for the following reasons: 1. Aforementioned properties change only when mode changes, so it's enough to be set only once per mode set. Currently it's done whenever properties of primary plane are changed. 2. It's assumed that primary plane will always cover whole screen. While this is true most of the time, it's not always. DE2/3 planes are universal and mostly equal in functionality. There is no reason to add artificial limitation to primary planes. 3. The current code only works for UI layers, but some mixers do not have any UI layers. Signed-off-by:
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Jernej Skrabec authored
Newly introduced mode_set callback in engine structure is a much better place for setting backend output size and interlace mode for following reasons: 1. Aforementioned properties change only when mode changes, so it's enough to be set only once per mode set. Currently it's done whenever properties of primary plane are changed. 2. It's assumed that primary plane will always cover whole screen. While this is true most of the time, it's not always. Planes are universal. There is no reason to add artificial limitation to primary plane. Signed-off-by:
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Jernej Skrabec authored
This optional callback is useful for setting properties which depends only on current mode. Such properties are width, height and interlaced output. These properties are currently set in update layer callback for primary plane which is less than ideal. More about that in follow up patches, which will migrate that code to this newly defined callback. Signed-off-by:
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Samuel Holland authored
Allwinner D1 is a RISC-V SoC which contains a DE 2.0 engine. Let's remove the dependency on a specific CPU architecture, so the driver can be built wherever ARCH_SUNXI is selected. Acked-by:
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Samuel Holland authored
readsb/writesb are unavailable on some architectures. In preparation for removing the Kconfig architecture dependency, switch to the equivalent but more portable ioread/write8_rep helpers. Reported-by:
kernel test robot <lkp@intel.com> Signed-off-by:
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Samuel Holland authored
Allwinner D1 contains a display engine 2.0. It features two mixers, a TCON TOP (with DSI and HDMI), one TCON LCD, and one TCON TV. Reviewed-by:
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Signed-off-by:
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Samuel Holland authored
So far, the binding and driver have relied on the fact that the H6 clocks are both a prefix and a subset of the R40 clocks. This allows them to share the clocks/clock-names items and the clock-output-names order between the hardware variants. However, the D1 hardware has TCON TV0 and DSI, but no TCON TV1. This cannot be supported by the existing scheme because it puts a gap in the middle of the item lists. To prepare for adding D1 support, use separate lists for variants with different combinations of clocks. Reviewed-by:
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Dmitry Baryshkov authored
The tc358762.connector field is unused. Remove it to save space. Signed-off-by:
Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Reviewed-by:
Robert Foss <robert.foss@linaro.org> Signed-off-by:
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Uwe Kleine-König authored
This function returns zero unconditionally, so there isn't any benefit of returning a value. Make it return void to be able to see at a glance that the return value of ssd130x_i2c_remove() is always zero. This patch is a preparation for making i2c remove callbacks return void. Signed-off-by:
Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by:
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- 25 Apr, 2022 7 commits
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Marek Vasut authored
In case the MXSFB is connected to a bridge, attempt to obtain bus flags from that bridge state too. The bus flags may specify e.g. the DE signal polarity. Acked-by:
Alexander Stein <alexander.stein@ew.tq-group.com> Signed-off-by:
Laurent Pinchart <laurent.pinchart@ideasonboard.com> Link: https://patchwork.freedesktop.org/patch/msgid/20220417021011.337066-1-marex@denx.de
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Marek Vasut authored
Reorder mxsfb_crtc_mode_set_nofb() such that all functions which perform register IO are called from one single location in this function. This is a clean up. No functional change. Reviewed-by:
Sam Ravnborg <sam@ravnborg.org> Link: https://patchwork.freedesktop.org/patch/msgid/20220417020800.336675-4-marex@denx.de
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Marek Vasut authored
Pull mode registers programming from mxsfb_enable_controller() into dedicated function mxsfb_set_mode(). This is a clean up. No functional change. Signed-off-by:
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Marek Vasut authored
Replace mxsfb_get_fb_paddr() with drm_fb_cma_get_gem_addr() to correctly handle FB offset. Signed-off-by:
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Marek Vasut authored
Wrap FIFO reset and comments into mxsfb_reset_block(), this is a clean up. No functional change. Reviewed-by:
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Thomas Zimmermann authored
SCDC is the Status and Control Data Channel for HDMI. Move the SCDC helpers into display/ and split the header into files for core and helpers. Update all affected drivers. No functional changes. To avoid the proliferation of Kconfig options, SCDC is part of DRM's support for HDMI. If necessary, a new option could make SCDC an independent feature. Signed-off-by:
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Thomas Zimmermann authored
Move DRM's HMDI helpers into the display/ subdirectoy and add it to DRM's display helpers. Update all affected drivers. No functional changes. The HDMI helpers were implemented in the EDID and connector code, but are actually unrelated. With the move to the display-helper library, we can remove the dependency on drm_edid.{c,h} in some driver's HDMI source files. Several of the HDMI helpers remain in EDID code because both share parts of their implementation internally. With better refractoring of the EDID code, those HDMI helpers could be moved into the display-helper library as well. v3: * fix Kconfig dependencies (Javier) v2: * reduce HDMI helpers to avoid exporting functions (Jani) * fix include statements (Jani, Javier) * update Kconfig symbols Signed-off-by:
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