kernel/linux.git/drivers/gpu/drm/tiny, branch v5.15.89

drm/bochs: fix blanking

2022-10-26T10:34:54+00:00

[ Upstream commit e740ceb53e4579a7a4063712cebecac3c343b189 ] VGA_IS1_RC is the color mode register (VGA_IS1_RM the one for monochrome mode, note C vs. M at the end). So when using VGA_IS1_RC make sure the vga device is actually in color mode and set the corresponding bit in the misc register. Reproducible when booting VMs in UEFI mode with some edk2 versions (edk2 fix is on the way too). Doesn't happen in BIOS mode because in that case the vgabios already flips the bit. Fixes: 250e743915d4 ("drm/bochs: Add screen blanking support") Signed-off-by: Gerd Hoffmann Acked-by: Thomas Zimmermann Link: http://patchwork.freedesktop.org/patch/msgid/20220906142957.2763577-1-kraxel@redhat.com Signed-off-by: Sasha Levin

drm/st7735r: Fix module autoloading for Okaya RH128128T

2022-08-17T12:23:16+00:00

[ Upstream commit 9ad6f181ad9a19a26bda73a7b199df44ccfcdaba ] The SPI core always reports a "MODALIAS=spi:", even if the device was registered via OF. This means that the st7735r.ko module won't autoload if a DT has a node with a compatible "okaya,rh128128t" string. In that case, kmod expects a "MODALIAS=of:N*T*Cokaya,rh128128t" uevent but instead will get a "MODALIAS=spi:rh128128t", which is not present in the list of aliases: $ modinfo drivers/gpu/drm/tiny/st7735r.ko | grep alias alias: of:N*T*Cokaya,rh128128tC* alias: of:N*T*Cokaya,rh128128t alias: of:N*T*Cjianda,jd-t18003-t01C* alias: of:N*T*Cjianda,jd-t18003-t01 alias: spi:jd-t18003-t01 To workaround this issue, add in the SPI table an entry for that device. Fixes: d1d511d516f7 ("drm: tiny: st7735r: Add support for Okaya RH128128T") Signed-off-by: Javier Martinez Canillas Reviewed-by: Geert Uytterhoeven Acked-by: David Lechner Link: https://patchwork.freedesktop.org/patch/msgid/20220520091602.179078-1-javierm@redhat.com Signed-off-by: Sasha Levin

drm/simpledrm: Fix return type of simpledrm_simple_display_pipe_mode_valid()

2022-08-03T10:03:43+00:00

commit 0c09bc33aa8e9dc867300acaadc318c2f0d85a1e upstream. When booting a kernel compiled with clang's CFI protection (CONFIG_CFI_CLANG), there is a CFI failure in drm_simple_kms_crtc_mode_valid() when trying to call simpledrm_simple_display_pipe_mode_valid() through ->mode_valid(): [ 0.322802] CFI failure (target: simpledrm_simple_display_pipe_mode_valid+0x0/0x8): ... [ 0.324928] Call trace: [ 0.324969] __ubsan_handle_cfi_check_fail+0x58/0x60 [ 0.325053] __cfi_check_fail+0x3c/0x44 [ 0.325120] __cfi_slowpath_diag+0x178/0x200 [ 0.325192] drm_simple_kms_crtc_mode_valid+0x58/0x80 [ 0.325279] __drm_helper_update_and_validate+0x31c/0x464 ... The ->mode_valid() member in 'struct drm_simple_display_pipe_funcs' expects a return type of 'enum drm_mode_status', not 'int'. Correct it to fix the CFI failure. Cc: stable@vger.kernel.org Fixes: 11e8f5fd223b ("drm: Add simpledrm driver") Link: https://github.com/ClangBuiltLinux/linux/issues/1647 Reported-by: Tomasz Paweł Gajc Signed-off-by: Nathan Chancellor Signed-off-by: Thomas Zimmermann Reviewed-by: Sami Tolvanen Link: https://patchwork.freedesktop.org/patch/msgid/20220725233629.223223-1-nathan@kernel.org Signed-off-by: Greg Kroah-Hartman

drm/simpledrm: Add "panel orientation" property on non-upright mounted LCD panels

2022-04-08T12:22:56+00:00

commit 94fa115f7b28a3f02611499175e134f0a823b686 upstream. Some devices use e.g. a portrait panel in a standard laptop casing made for landscape panels. efifb calls drm_get_panel_orientation_quirk() and sets fb_info.fbcon_rotate_hint to make fbcon rotate the console so that it shows up-right instead of on its side. When switching to simpledrm the fbcon renders on its side. Call the drm_connector_set_panel_orientation_with_quirk() helper to add a "panel orientation" property on devices listed in the quirk table, to make the fbcon (and aware userspace apps) rotate the image to display properly. Cc: Javier Martinez Canillas Signed-off-by: Hans de Goede Reviewed-by: Javier Martinez Canillas Acked-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/20220221220045.11958-1-hdegoede@redhat.com Signed-off-by: Greg Kroah-Hartman

drm: simpledrm: fix wrong unit with pixel clock

2021-12-22T08:32:41+00:00

[ Upstream commit 5cf06065bd1f7b94fbb80e7eeb033899f77ab5ba ] Pixel clock has to be set in kHz. Signed-off-by: Alejandro Concepcion-Rodriguez Fixes: 11e8f5fd223b ("drm: Add simpledrm driver") Signed-off-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/6f8554ef-1305-0dda-821c-f7d2e5644a48@acoro.eu Signed-off-by: Sasha Levin

drm/simpledrm: Use offset-adjusted shadow-plane mapping

2021-08-08T18:27:40+00:00

For framebuffers with non-zero offset fields, shadow-plane helpers provide a pointer to the first byte of the contained data. Use it in simpledrm. Signed-off-by: Thomas Zimmermann Acked-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20210803125928.27780-9-tzimmermann@suse.de

drm/gm12u320: Use offset-adjusted shadow-plane mappings

2021-08-08T18:27:37+00:00

For framebuffers with non-zero offset fields, shadow-plane helpers provide a pointer to the first byte of the contained data. Use it in gm12u320. Signed-off-by: Thomas Zimmermann Acked-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20210803125928.27780-8-tzimmermann@suse.de

drm/cirrus: Use offset-adjusted shadow-plane mappings

2021-08-08T18:27:34+00:00

For framebuffers with non-zero offset fields, shadow-plane helpers provide a pointer to the first byte of the contained data. Use it in cirrus. Signed-off-by: Thomas Zimmermann Acked-by: Sam Ravnborg Link: https://patchwork.freedesktop.org/patch/msgid/20210803125928.27780-7-tzimmermann@suse.de

drm/st7586: Use framebuffer dma-buf helpers

2021-07-23T18:18:14+00:00

Replace dma_buf_begin_cpu_access() with drm_gem_fb_begin_cpu_access(); same for _end_cpu_access(). Remove some boiler-plate code. No functional changes. Signed-off-by: Thomas Zimmermann Reviewed-by: Noralf Trønnes Acked-by: Daniel Vetter Acked-by: David Lechner Link: https://patchwork.freedesktop.org/patch/msgid/20210716140801.1215-8-tzimmermann@suse.de

drm/repaper: Use framebuffer dma-buf helpers

2021-07-23T18:18:11+00:00

Replace dma_buf_begin_cpu_access() with drm_gem_fb_begin_cpu_access(); same for _end_cpu_access(). Remove some boiler-plate code. No functional changes. Signed-off-by: Thomas Zimmermann Reviewed-by: Noralf Trønnes Acked-by: Daniel Vetter Link: https://patchwork.freedesktop.org/patch/msgid/20210716140801.1215-7-tzimmermann@suse.de