kernel/linux.git/drivers/gpu/drm/aspeed, branch v5.16.1

drm/aspeed: Fix vga_pw sysfs output

2021-11-19T11:00:14+00:00

Before the drm driver had support for this file there was a driver that exposed the contents of the vga password register to userspace. It would present the entire register instead of interpreting it. The drm implementation chose to mask of the lower bit, without explaining why. This breaks the existing userspace, which is looking for 0xa8 in the lower byte. Change our implementation to expose the entire register. Fixes: 696029eb36c0 ("drm/aspeed: Add sysfs for output settings") Reported-by: Oskar Senft Signed-off-by: Joel Stanley Reviewed-by: Jeremy Kerr Tested-by: Oskar Senft Signed-off-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20211117010145.297253-1-joel@jms.id.au

drm/tiny: drm_gem_simple_display_pipe_prepare_fb is the default

2021-06-24T13:40:11+00:00

Goes through all the drivers and deletes the default hook since it's the default now. Acked-by: David Lechner Acked-by: Noralf Trønnes Acked-by: Oleksandr Andrushchenko Acked-by: Linus Walleij Signed-off-by: Daniel Vetter Cc: Joel Stanley Cc: Andrew Jeffery Cc: "Noralf Trønnes" Cc: Linus Walleij Cc: Emma Anholt Cc: David Lechner Cc: Kamlesh Gurudasani Cc: Oleksandr Andrushchenko Cc: Daniel Vetter Cc: Maxime Ripard Cc: Thomas Zimmermann Cc: Sam Ravnborg Cc: Alex Deucher Cc: Andy Shevchenko Cc: linux-aspeed@lists.ozlabs.org Cc: linux-arm-kernel@lists.infradead.org Cc: xen-devel@lists.xenproject.org Link: https://patchwork.freedesktop.org/patch/msgid/20210622165511.3169559-14-daniel.vetter@ffwll.ch

drm/gem: Move drm_gem_fb_prepare_fb() to GEM atomic helpers

2021-02-23T07:54:22+00:00

The function drm_gem_fb_prepare_fb() is a helper for atomic modesetting, but currently located next to framebuffer helpers. Move it to GEM atomic helpers, rename it slightly and adopt the drivers. Same for the rsp simple-pipe helper. Compile-tested with x86-64, aarch64 and arm. The patch is fairly large, but there are no functional changes. v3: * remove out-comented line in drm_gem_framebuffer_helper.h (Maxime) v2: * rename to drm_gem_plane_helper_prepare_fb() (Daniel) * add tutorial-style documentation Signed-off-by: Thomas Zimmermann Acked-by: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20210222141756.7864-1-tzimmermann@suse.de

drm: use getter/setter functions

2021-02-10T13:10:59+00:00

Use getter and setter functions, for platform_device structures and a mipi_dsi_device structure. Signed-off-by: Julia Lawall Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20210209211304.1261740-1-Julia.Lawall@inria.fr

drm/aspeed: Use dt matching for default register values

2021-02-10T00:26:16+00:00

There are minor differences in the values for the threshold value and the scan line size between families of ASPEED SoC. Additionally the SCU registers for the output control and scratch registers differ between families. This adds device tree matching to parameterise these values, allowing us to add support for the AST2400 now, and in the future the AST2600. Reviewed-by: Jeremy Kerr Signed-off-by: Joel Stanley Link: https://patchwork.freedesktop.org/patch/msgid/20210209123734.130483-3-joel@jms.id.au

drm/aspeed: Look up syscon by phandle

2021-02-10T00:26:15+00:00

This scales better to multiple families of SoC. The lookup by compatible can be removed in a future change. The fallback path is for the ast2500 platform only. Other platforms will be added with the new style, so they won't need fallback paths. Signed-off-by: Joel Stanley Reviewed-by: Andrew Jeffery Link: https://patchwork.freedesktop.org/patch/msgid/20210209123734.130483-2-joel@jms.id.au

drm/: Constify struct drm_driver

2020-11-06T09:31:26+00:00

Only the following drivers aren't converted: - amdgpu, because of the driver_feature mangling due to virt support. Subsequent patch will address this. - nouveau, because DRIVER_ATOMIC uapi is still not the default on the platforms where it's supported (i.e. again driver_feature mangling) - vc4, again because of driver_feature mangling - qxl, because the ioctl table is somewhere else and moving that is maybe a bit too much, hence the num_ioctls assignment prevents a const driver structure. - arcpgu, because that is stuck behind a pending tiny-fication series from me. - legacy drivers, because legacy requires non-const drm_driver. Note that for armada I also went ahead and made the ioctl array const. Only cc'ing the driver people who've not been converted (everyone else is way too much). v2: Fix one misplaced const static, should be static const (0day) v3: - Improve commit message (Sam) Acked-by: Sam Ravnborg Cc: kernel test robot Acked-by: Maxime Ripard Reviewed-by: Alex Deucher Signed-off-by: Daniel Vetter Cc: Sam Ravnborg Cc: Dave Airlie Cc: Gerd Hoffmann Cc: virtualization@lists.linux-foundation.org Cc: Harry Wentland Cc: Leo Li Cc: Alex Deucher Cc: Christian König Cc: Eric Anholt Cc: Maxime Ripard Cc: Ben Skeggs Cc: nouveau@lists.freedesktop.org Signed-off-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20201104100425.1922351-5-daniel.vetter@ffwll.ch

drm/aspeed: Fix Kconfig warning & subsequent build errors

2020-10-12T04:44:33+00:00

Kernel test robot reported build errors (undefined references) that didn't make much sense. After reproducing them, there is also a Kconfig warning that is the root cause of the build errors, so fix that Kconfig problem. Fixes this Kconfig warning: WARNING: unmet direct dependencies detected for CMA Depends on [n]: MMU [=n] Selected by [m]: - DRM_ASPEED_GFX [=m] && HAS_IOMEM [=y] && DRM [=m] && OF [=y] && (COMPILE_TEST [=y] || ARCH_ASPEED) && HAVE_DMA_CONTIGUOUS [=y] and these dependent build errors: (.text+0x10c8c): undefined reference to `start_isolate_page_range' microblaze-linux-ld: (.text+0x10f14): undefined reference to `test_pages_isolated' microblaze-linux-ld: (.text+0x10fd0): undefined reference to `undo_isolate_page_range' Fixes: 76356a966e33 ("drm: aspeed: Clean up Kconfig options") Reported-by: kernel test robot Signed-off-by: Randy Dunlap Reviewed-by: Joel Stanley Cc: Joel Stanley Cc: Andrew Jeffery Cc: Daniel Vetter Cc: Michal Simek Cc: Andrew Morton Cc: Mike Rapoport Cc: linux-mm@kvack.org Cc: linux-aspeed@lists.ozlabs.org Cc: linux-arm-kernel@lists.infradead.org Cc: David Airlie Cc: dri-devel@lists.freedesktop.org Signed-off-by: Joel Stanley Link: https://patchwork.freedesktop.org/patch/msgid/20201011230131.4922-1-rdunlap@infradead.org Signed-off-by: Joel Stanley

drm/aspeed: Set driver CMA functions with DRM_GEM_CMA_DRIVER_OPS

2020-10-09T08:44:12+00:00

DRM_GEM_CMA_DRIVER_OPS sets the functions in struct drm_driver to their defaults. No functional changes are made. Signed-off-by: Thomas Zimmermann Reviewed-by: Joel Stanley Acked-by: Emil Velikov Signed-off-by: Joel Stanley Link: https://patchwork.freedesktop.org/patch/msgid/20200603083132.4610-5-tzimmermann@suse.de

drm: aspeed: Fix GENMASK misuse

2020-10-09T07:46:34+00:00

Arguments to GENMASK should be msb >= lsb. Signed-off-by: Ondrej Jirman Reviewed-by: Andrew Jeffery Signed-off-by: Joel Stanley Link: https://patchwork.freedesktop.org/patch/msgid/20200222235152.242816-1-megous@megous.com