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path: root/drivers/gpu/drm/renesas/shmobile/shmob_drm_drv.c
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2023-10-16drm: renesas: shmobile: Add DT supportGeert Uytterhoeven1-3/+24
Add DT support, by: 1. Creating a panel bridge from DT, and attaching it to the encoder, 2. Replacing the custom connector with a bridge connector, 3. Obtaining clock configuration based on the compatible value. Note that for now the driver uses a fixed clock configuration selecting the bus clock, as the current code to select other clock inputs needs changes to support any other SoCs than SH7724. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/6185ab76aa300fa402e4f6610b2109665f2d8a1c.1694767209.git.geert+renesas@glider.be
2023-10-16drm: renesas: shmobile: Atomic conversion part 3Geert Uytterhoeven1-1/+1
Complete the conversion to atomic mode setting by converting the connector, and setting the DRIVER_ATOMIC flag. Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/042f9ff076c4b1c87235c74c8b76c9d161e126ec.1694767209.git.geert+renesas@glider.be
2023-10-16drm: renesas: shmobile: Use suspend/resume helpersGeert Uytterhoeven1-10/+3
Replace the custom suspend/resume handling by calls into drm_mode_config_helper_{suspend,resume}(). Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/a52147ca6033e0a59675f37f0326c7404fc5919c.1694767209.git.geert+renesas@glider.be
2023-10-16drm: renesas: shmobile: Atomic conversion part 1Geert Uytterhoeven1-2/+2
Implement atomic mode setting for both the primary and overlay planes. This involves: - Moving the primary plane handling code from CRTC mode setting to plane handling shared by primary and overlay planes, - Adding basic CRTC and mode config atomic mode setting ops, which don't do much yet. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/a6b698a1c8c1eaf631c2f928f5888ab5fe7aa4c3.1694767209.git.geert+renesas@glider.be
2023-10-16drm: renesas: shmobile: Shutdown the display on removeGeert Uytterhoeven1-0/+2
When the device is unbound from the driver, the display may be active. Make sure it gets shut down. Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/ddf2736459d59d0e961f240e77da7b0a28caae15.1694767209.git.geert+renesas@glider.be
2023-10-16drm: renesas: shmobile: Turn vblank on/off when enabling/disabling CRTCGeert Uytterhoeven1-6/+6
The DRM core vblank handling mechanism requires drivers to forcefully turn vblank reporting off when disabling the CRTC, and to restore the vblank reporting status when enabling the CRTC. Implement this using the drm_crtc_vblank_{on,off}() helpers. Note that drm_crtc_vblank_off() must be called at startup to synchronize the state of the vblank core code with the hardware, which is initially disabled. This is performed at CRTC creation time, requiring vertical blank initialization to be moved before creating CRTCs. Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/e5833e5706b7792bfca8e6e56fc154a7c3e0574f.1694767209.git.geert+renesas@glider.be
2023-10-16drm: renesas: shmobile: Use drm_crtc_handle_vblank()Geert Uytterhoeven1-1/+1
Replace the call to the legacy drm_handle_vblank() function with a call to the new drm_crtc_handle_vblank() helper. Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Sui Jingfeng <suijingfeng@loongson.cn> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/bef278cc9b7536505f41faaa2f13184d9354fa7e.1694767209.git.geert+renesas@glider.be
2023-10-16drm: renesas: shmobile: Unify plane allocationGeert Uytterhoeven1-9/+0
Unify primary and overlay plane allocation: - Enhance shmob_drm_plane_create() so it can be used to create the primary plane, too, - Move overlay plane creation next to primary plane creation. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/adbc5febc0099fd1910f32a7af1c8e0f570f74b4.1694767209.git.geert+renesas@glider.be
2023-10-16drm: renesas: shmobile: Move interface handling to connector setupGeert Uytterhoeven1-34/+0
Move legacy interface handling to the connector setup code. Set up bus_flags and bus_formats in display_info according to the bus format and panel information from platform data, to make it more similar with DT-based connector/bridge/panel setup. This will allow us to use the same LCD interface setup code for both legacy and DT-based systems. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/912f615eb87c847804a268200ab57c63453c65d4.1694767209.git.geert+renesas@glider.be
2023-10-16drm: renesas: shmobile: Use media bus formats in platform dataGeert Uytterhoeven1-15/+22
Replace the custom shmob_drm_interface enumeration values with standard media bus formats. This simplifies driver handling of bus formats and prepares for DT support. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/0a15e5100ca30d14953c93550eb1d4c2e18de939.1694767209.git.geert+renesas@glider.be
2023-10-16drm: renesas: shmobile: Replace .dev_private with container_of()Geert Uytterhoeven1-3/+1
Now that drm_device is embedded in shmob_drm_device, we can use a container_of()-based helper to get the shmob_drm_device pointer from the drm_device, instead of using the deprecated drm_device.dev_private field. While at it, restore reverse Xmas tree ordering of local variable declarations. Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Sui Jingfeng <suijingfeng@loongson.cn> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/8ef4be8bffe75efc7f4b66f3732ec357f7d43e0f.1694767209.git.geert+renesas@glider.be
2023-10-16drm: renesas: shmobile: Embed drm_device in shmob_drm_deviceGeert Uytterhoeven1-25/+15
Embedding drm_device in shmob_drm_device allows us to use the DRM managed API to allocate both structures in one go, simplifying error handling. Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/abbf95021191824f44cc8c52e4afbde93d44363a.1694767209.git.geert+renesas@glider.be
2023-10-16drm: renesas: shmobile: Convert to use devm_request_irq()Geert Uytterhoeven1-6/+3
Convert to managed IRQ handling, to simplify cleanup. Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/8d870bdc59dd5e2754542388a03095ea09c96297.1694767209.git.geert+renesas@glider.be
2023-10-16drm: renesas: shmobile: Improve error handlingGeert Uytterhoeven1-1/+2
Prepare for DT conversion, where panel probe can be deferred, by streamlining error propagation and handling: - Use dev_err_probe() to avoid printing error messages in case of probe deferral, - Propagate errors where needed. Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/6dfac76e5b1c7dda3f96801ce83845a4235e2ccd.1694767209.git.geert+renesas@glider.be
2023-10-16drm: renesas: shmobile: Remove support for SYS panelsLaurent Pinchart1-11/+0
SYS panels are not used, and have no defined DT bindings. Remove their support to avoid impeding DT support. It can always be added back later. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/4ccca2a5ac05c73ea9fd6e44b8bc443fd9d14e0d.1694767209.git.geert+renesas@glider.be
2023-10-16drm: renesas: shmobile: Rename input clocksLaurent Pinchart1-3/+3
Prepare for DT bindings by using more appropriate names for the input clocks. Note that all LDDCKR_ICKSEL_* definitions but the one for the bus clock are valid only for SH7724, so the clock selection code needs to be updated when extending clock support to other SoCs. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> [geert: Add note] Reviewed-by: Sui Jingfeng <suijingfeng@loongson.cn> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/d4b4d2164541ae055d10064103db3c2d6540e846.1694767209.git.geert+renesas@glider.be
2023-10-16drm: renesas: shmobile: Restore indentation of shmob_drm_setup_clocks()Geert Uytterhoeven1-1/+1
Commit 56550d94cbaeaa19 ("Drivers: gpu: remove __dev* attributes.") forgot to realign the continuation of the parameter section of shmob_drm_setup_clocks(). Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/b1c5c9b33b74fef1f4250847398a98f93c4dc1be.1694767209.git.geert+renesas@glider.be
2023-10-16drm: renesas: shmobile: Add support for Runtime PMGeert Uytterhoeven1-3/+35
The SH-Mobile LCD Controller is part of a PM Domain on all relevant SoCs (clock domain on all, power domain on some). Hence it may not be sufficient to manage the LCDC module clock explicitly (e.g. if the selected clock source differs from SHMOB_DRM_CLK_BUS). Fix this by using Runtime PM for all clock handling. Add an explicit dependency on CONFIG_PM, which should already be met on all affected platforms. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Link: https://lore.kernel.org/r/e7359a64963bd9a4f1531c2beae850774ce140bc.1694767209.git.geert+renesas@glider.be
2023-09-09drm/shmobile: Convert to platform remove callback returning voidUwe Kleine-König1-4/+2
The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is (mostly) ignored and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new() which already returns void. Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230507162616.1368908-40-u.kleine-koenig@pengutronix.de
2023-05-29drm: Place Renesas drivers in a separate dirBiju Das1-0/+302
Create vendor specific renesas directory and move renesas drivers to that directory. Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com> Acked-by: Kieran Bingham <kieran.bingham+renesas@ideasonboard.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
generated by cgit v1.2.3 (git 2.39.0) at 2024-07-26 05:28:17 +0300