kernel/linux.git/drivers/gpu/drm/tegra, branch v6.6.18

fbdev: Use _DMAMEM_ infix for DMA-memory helpers

2023-07-31T18:07:18+00:00

Change the infix for fbdev's DMA-memory helpers from _DMA_ to _DMAMEM_. The helpers perform operations within DMA-able memory, but they don't perform DMA operations. Naming should make this clear. Adapt all users. No functional changes. Signed-off-by: Thomas Zimmermann Reviewed-by: Sam Ravnborg Acked-by: Helge Deller Link: https://patchwork.freedesktop.org/patch/msgid/20230729193157.15446-4-tzimmermann@suse.de

drm/tegra: sor: Convert to devm_platform_ioremap_resource()

2023-07-27T16:41:59+00:00

Use devm_platform_ioremap_resource() to simplify code. Signed-off-by: Yangtao Li Signed-off-by: Thierry Reding Link: https://patchwork.freedesktop.org/patch/msgid/20230710032355.72914-16-frank.li@vivo.com

drm/tegra: hdmi: Convert to devm_platform_ioremap_resource()

2023-07-27T16:41:59+00:00

drm/tegra: dpaux: Fix incorrect return value of platform_get_irq

2023-07-27T16:41:59+00:00

When platform_get_irq fails, we should return dpaux->irq instead of -ENXIO. Fixes: 6b6b604215c6 ("drm/tegra: Add eDP support") Signed-off-by: Yangtao Li Signed-off-by: Thierry Reding Link: https://patchwork.freedesktop.org/patch/msgid/20230710032355.72914-13-frank.li@vivo.com

drm/tegra: output: hdmi: Support bridge/connector

2023-07-27T16:41:59+00:00

Some Tegra device-trees may specify a video output graph, which involves MHL bridge/simple bridge and/or connector framework. This patch adds support for the bridge/connector attached to the HDMI output, allowing us to model the hardware properly. Inspired by: 29efdc2 ("drm/tegra: output: rgb: Support LVDS encoder bridge") Tested-by: Andreas Westman Dorcsak # ASUS TF T30 Tested-by: Maxim Schwalm # ASUS P1801-T T30 Tested-by: Robert Eckelmann # ASUS TF101 T20 Tested-by: Svyatoslav Ryhel # ASUS TF201 T30 Signed-off-by: Maxim Schwalm Signed-off-by: Svyatoslav Ryhel Signed-off-by: Thierry Reding Link: https://patchwork.freedesktop.org/patch/msgid/20230618085046.10081-2-clamor95@gmail.com

drm/tegra: Enable runtime PM during probe

2023-07-27T16:41:59+00:00

Currently, engine drivers only enable runtime PM during the host1x init callback. This can happen slightly later than the probe, which can cause the power domain to intermittently not be turned off after probe. My hypothesis is that there is a race condition between the post-probe power domain poweroff that is done from a queued work, and the pm_runtime_enable call happening in the host1x init callback. If the pm_runtime_enable call happens first, everything is OK and the power off work can disable the power domain as PM runtime is enabled and the device is runtime suspended. If power off work runs first, PM runtime is still disabled for the device and the domain must be kept powered. Resolve the issue by moving the runtime PM enablement to the probe function. Signed-off-by: Mikko Perttunen Signed-off-by: Thierry Reding Link: https://patchwork.freedesktop.org/patch/msgid/20230613095215.2497004-1-cyndis@kapsi.fi

drm/tegra: dpaux: Use devm_platform_ioremap_resource()

2023-07-27T16:41:59+00:00

Convert platform_get_resource(),devm_ioremap_resource() to a single call to devm_platform_ioremap_resource(), as this is exactly what this function does. Signed-off-by: Yang Li Signed-off-by: Thierry Reding Link: https://patchwork.freedesktop.org/patch/msgid/20230421084952.45275-1-yang.lee@linux.alibaba.com

drm/tegra: Add error check for NVDEC firmware memory allocation

2023-07-27T16:41:59+00:00

The return value for tegra_drm_alloc was missing an error check. Add one. Reported-by: Dan Carpenter Signed-off-by: Mikko Perttunen Signed-off-by: Thierry Reding Link: https://patchwork.freedesktop.org/patch/msgid/20230413082202.114721-1-cyndis@kapsi.fi

drm/tegra: Store pointer to vmap'ed framebuffer in screen_buffer

2023-07-24T18:14:43+00:00

Tegra uses DMA-able memory, which has to be acessed with CPU ops for system-memory. Store the framebuffer's vmap address in struct fb_info.screen_buffer. The currently used field 'screen_base' is for I/O memory. Suggested-by: Thierry Reding Signed-off-by: Thomas Zimmermann Cc: Thierry Reding Cc: Mikko Perttunen Reviewed-by: Javier Martinez Canillas Acked-by: Thierry Reding Link: https://patchwork.freedesktop.org/patch/msgid/20230707083422.18691-6-tzimmermann@suse.de

drm/tegra: Set fbdev FBINFO_VIRTFB flag

2023-07-24T18:14:43+00:00

Mark the framebuffer with FBINFO_VIRTFB. The framebuffer range is in DMA-able memory and should be accessed with the CPU's regular memory ops. v2: * drop FBINFO_DEFAULT Signed-off-by: Thomas Zimmermann Reviewed-by: Javier Martinez Canillas Acked-by: Maxime Ripard Cc: Thierry Reding Cc: Mikko Perttunen Acked-by: Thierry Reding Link: https://patchwork.freedesktop.org/patch/msgid/20230707083422.18691-5-tzimmermann@suse.de