linux-stable.git/drivers/gpu/drm/tiny, branch v5.15.63

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

drm/gm12u320: Use framebuffer dma-buf helpers

2021-07-23T18:18:08+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/20210716140801.1215-6-tzimmermann@suse.de