Commit Graph

25 Commits

Author SHA1 Message Date
Javier Martinez Canillas
09d6838f37 drm/ssd130x: Synchronize access to dma-buf imported GEM BOs
Synchronize CPU access to GEM BOs with other drivers when updating the
screen buffer. Imported DMA buffers might otherwise contain stale data.

Suggested-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220927095249.1919385-1-javierm@redhat.com
2022-09-27 13:26:39 +02:00
Javier Martinez Canillas
30b1a0797e drm/ssd130x: Use drm_atomic_get_new_plane_state()
The struct drm_plane .state shouldn't be accessed directly but instead the
drm_atomic_get_new_plane_state() helper function should be used.

This is based on a similar patch from Thomas Zimmermann for the simpledrm
driver. No functional changes.

Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220923083447.1679780-1-javierm@redhat.com
2022-09-27 13:26:38 +02:00
Javier Martinez Canillas
8401bd361f drm/plane-helper: Add a drm_plane_helper_atomic_check() helper
Provides a default plane state check handler for primary planes that are a
fullscreen scanout buffer and whose state scale and position can't change.

There are some drivers that duplicate this logic in their helpers, such as
simpledrm and ssd130x. Factor out this common code into a plane helper and
make drivers use it.

Suggested-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220913162307.121503-1-javierm@redhat.com
2022-09-16 23:33:52 +02:00
Dave Airlie
fb34d8a04e Merge tag 'drm-misc-next-2022-09-09' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
drm-misc-next for v6.1-rc1:

[airlied - fix sun4i_tv build]

UAPI Changes:
- Hide unregistered connectors from GETCONNECTOR ioctl.
- drm/virtio no longer advertises LINEAR modifier, as it doesn't work.
-

Cross-subsystem Changes:
- Fix GPF in udmabuf failure path.

Core Changes:
- Rework TTM placement to use intersect/compatible functions.
- Drop legacy DP-MST support.
- More DP-MST related fixes, and move all state into atomic.
- Make DRM_MIPI_DBI select DRM_KMS_HELPER.
- Add audio_infoframe packing for DP.
- Add logging when some atomic check functions fail.
- Assorted documentation updates and fixes.

Driver Changes:
- Assorted cleanups and fixes in msm, lcdif, nouveau, virtio,
  panel/ilitek, bridge/icn6211, tve200, gma500, bridge/*, panfrost, via,
  bochs, qxl, sun4i.
- Add add AUO B133UAN02.1, IVO M133NW4J-R3, Innolux N120ACA-EA1 eDP panels.
- Improve DP-MST modeset state handling in amdgpu, nouveau, i915.
- Drop DP-MST from radeon driver, it was broken and only user of legacy
  DP-MST.
- Handle unplugging better in vc4.
- Simplify drm cmdparser tests.
- Add DP support to ti-sn65dsi86.
- Add MT8195 DP support to mediatek.
- Support RGB565, XRGB64, and ARGB64 formats in vkms.
- Convert sun4i tv support to atomic.
- Refactor vc4/vec TV Modesetting, and fix timings.
- Use atomic helpers instead of simple display helpers in ssd130x.

Maintainer changes:
- Add Douglas Anderson as reviewer for panel-edp.

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/a489485b-3ebc-c734-0f80-aed963d89efe@linux.intel.com
2022-09-11 22:03:07 +10:00
Javier Martinez Canillas
622113b9f1 drm/ssd130x: Replace simple display helpers with the atomic helpers
The simple display pipeline is a set of helpers that can be used by DRM
drivers to avoid dealing with all the needed components and just define
a few functions to operate a simple display device with one full-screen
scanout buffer feeding a single output.

But it is arguable that this provides the correct level of abstraction
for simple drivers, and recently some have been ported from using these
simple display helpers to use the regular atomic helpers instead.

The rationale for this is that the simple display pipeline helpers don't
hide that much of the DRM complexity, while adding an indirection layer
that conflates the concepts of CRTCs and planes. This makes the helpers
less flexible and harder to be reused among different graphics drivers.

Also, for simple drivers, using the full atomic helpers doesn't require
a lot of additional code. So adding a simple display pipeline layer may
not be worth it.

For these reasons, let's follow that trend and make ssd130x a plain DRM
driver that creates its own primary plane, CRTC, enconder and connector.

Suggested-by: Thomas Zimmermann <tzimmermann@suse.de>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20220905222759.2597186-1-javierm@redhat.com
2022-09-08 10:46:19 +02:00
Daniel Vetter
8284bae723 Merge tag 'drm-misc-next-2022-08-20-1' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
drm-misc-next for v6.1:

UAPI Changes:

Cross-subsystem Changes:
- DMA-buf: documentation updates.
- Assorted small fixes to vga16fb
- Fix fbdev drivers to use the aperture helpers.
- Make removal of conflicting drivers work correctly without fbdev enabled.

Core Changes:
- bridge, scheduler, dp-mst: Assorted small fixes.
- Add more format helpers to fourcc, and use it to replace the cpp usage.
- Add DRM_FORMAT_Cxx, DRM_FORMAT_Rxx (single channel), and DRM_FORMAT_Dxx
  ("darkness", inverted single channel)
- Add packed AYUV8888 and XYUV8888 formats.
- Assorted documentation updates.
- Rename ttm_bo_init to ttm_bo_init_validate.
- Allow TTM bo's to exist without backing store.
- Convert drm selftests to kunit.
- Add managed init functions for (panel) bridge, crtc, encoder and connector.
- Fix endianness handling in various format conversion helpers.
- Make tests pass on big-endian platforms, and add test for rgb888 -> rgb565
- Move DRM_PLANE_HELPER_NO_SCALING to atomic helpers and rename, so
  drm_plane_helper is no longer needed in most drivers.
- Use idr_init_base instead of idr_init.
- Rename FB and GEM CMA helpers to DMA helpers.
- Rework XRGB8888 related conversion helpers, and add drm_fb_blit() that
  takes a iosys_map. Make drm_fb_memcpy take an iosys_map too.
- Move edid luminance calculation to core, and use it in i915.

Driver Changes:
- bridge/{adv7511,ti-sn65dsi86,parade-ps8640}, panel/{simple,nt35510,tc358767},
  nouveau, sun4i, mipi-dsi, mgag200, bochs, arm, komeda, vmwgfx, pl111:
  Assorted small fixes and doc updates.
- vc4: Rework hdmi power up, and depend on PM.
- panel/simple: Add Samsung LTL101AL01.
- ingenic: Add JZ4760(B) support, avoid a modeset when sharpness property
  is unchanged, and use the new PM ops.
- Revert some amdgpu commits that cause garbaged graphics when starting
  X, and reapply them with the real problem fixed.
- Completely rework vc4 init to use managed helpers.
- Rename via_drv to via_dri1, and move all stuff there only used by the
  dri1 implementation in preperation for atomic modeset.
- Use regmap bulk write in ssd130x.
- Power sequence and clock updates to it6505.
- Split panel-sitrox-st7701  init sequence and rework mode programming code.
- virtio: Improve error and edge conditions handling, and convert to use managed
  helpers.
- Add Samsung LTL101AL01, B120XAN01.0, R140NWF5 RH, DMT028VGHMCMI-1A T, panels.
- Add generic fbdev support to komeda.
- Split mgag200 modeset handling to make it more model-specific.
- Convert simpledrm to use atomic helpers.
- Improve udl suspend/disconnect handling.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/f0c71766-61e8-19b7-763a-5fbcdefc633d@linux.intel.com
2022-09-06 10:56:04 +02:00
Thomas Zimmermann
b3aca563d6 drm/format-helper: Rework XRGB8888-to-MONO conversion
Update XRGB8888-to-MONO conversion to support struct iosys_map
and convert all users. Although these are single-plane color formats,
the new interface supports multi-plane formats for consistency with
drm_fb_blit().

v2:
	* rebase after renaming CMA helpers to DMA helpers
	* update documentation (Sam)

Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Tested-by: Noralf Trønnes <noralf@tronnes.org>
Reviewed-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220808125406.20752-13-tzimmermann@suse.de
2022-08-10 09:18:53 +02:00
Linus Torvalds
b44f2fd879 Merge tag 'drm-next-2022-08-03' of git://anongit.freedesktop.org/drm/drm
Pull drm updates from Dave Airlie:
 "Highlights:

   - New driver for logicvc - which is a display IP core.

   - EDID parser rework to add new extensions

   - fbcon scrolling improvements

   - i915 has some more DG2 work but not enabled by default, but should
     have enough features for userspace to work now.

  Otherwise it's lots of work all over the place. Detailed summary:

  New driver:
   - logicvc

  vfio:
   - use aperture API

  core:
   - of: Add data-lane helpers and convert drivers
   - connector: Remove deprecated ida_simple_get()

  media:
   - Add various RGB666 and RGB888 format constants

  panel:
   - Add HannStar HSD101PWW
   - Add ETML0700Y5DHA

  dma-buf:
   - add sync-file API
   - set dma mask for udmabuf devices

  fbcon:
   - Improve scrolling performance
   - Sanitize input

  fbdev:
   - device unregistering fixes
   - vesa: Support COMPILE_TEST
   - Disable firmware-device registration when first native driver loads

  aperture:
   - fix segfault during hot-unplug
   - export for use with other subsystems

  client:
   - use driver validated modes

  dp:
   - aux: make probing more reliable
   - mst: Read extended DPCD capabilities during system resume
   - Support waiting for HDP signal
   - Port-validation fixes

  edid:
   - CEA data-block iterators
   - struct drm_edid introduction
   - implement HF-EEODB extension

  gem:
   - don't use fb format non-existing planes

  probe-helper:
   - use 640x480 as displayport fallback

  scheduler:
   - don't kill jobs in interrupt context

  bridge:
   - Add support for i.MX8qxp and i.MX8qm
   - lots of fixes/cleanups
   - Add TI-DLPC3433
   - fy07024di26a30d: Optional GPIO reset
   - ldb: Add reg and reg-name properties to bindings, Kconfig fixes
   - lt9611: Fix display sensing;
   - tc358767: DSI/DPI refactoring and DSI-to-eDP support, DSI lane handling
   - tc358775: Fix clock settings
   - ti-sn65dsi83: Allow GPIO to sleep
   - adv7511: I2C fixes
   - anx7625: Fix error handling; DPI fixes; Implement HDP timeout via callback
   - fsl-ldb: Drop DE flip
   - ti-sn65dsi86: Convert to atomic modesetting

  amdgpu:
   - use atomic fence helpers in DM
   - fix VRAM address calculations
   - export CRTC bpc via debugfs
   - Initial devcoredump support
   - Enable high priority gfx queue on asics which support it
   - Adjust GART size on newer APUs for S/G display
   - Soft reset for GFX 11 / SDMA 6
   - Add gfxoff status query for vangogh
   - Fix timestamps for cursor only commits
   - Adjust GART size on newer APUs for S/G display
   - fix buddy memory corruption

  amdkfd:
   - MMU notifier fixes
   - P2P DMA support using dma-buf
   - Add available memory IOCTL
   - HMM profiler support
   - Simplify GPUVM validation
   - Unified memory for CWSR save/restore area

  i915:
   - General driver clean-up
   - DG2 enabling (still under force probe)
       - DG2 small BAR memory support
       - HuC loading support
       - DG2 workarounds
       - DG2/ATS-M device IDs added
   - Ponte Vecchio prep work and new blitter engines
   - add Meteorlake support
   - Fix sparse warnings
   - DMC MMIO range checks
   - Audio related fixes
   - Runtime PM fixes
   - PSR fixes
   - Media freq factor and per-gt enhancements
   - DSI fixes for ICL+
   - Disable DMC flip queue handlers
   - ADL_P voltage swing updates
   - Use more the VBT for panel information
   - Fix on Type-C ports with TBT mode
   - Improve fastset and allow seamless M/N changes
   - Accept more fixed modes with VRR/DMRRS panels
   - Disable connector polling for a headless SKU
   - ADL-S display PLL w/a
   - Enable THP on Icelake and beyond
   - Fix i915_gem_object_ggtt_pin_ww regression on old platforms
   - Expose per tile media freq factor in sysfs
   - Fix dma_resv fence handling in multi-batch execbuf
   - Improve on suspend / resume time with VT-d enabled
   - export CRTC bpc settings via debugfs

  msm:
   - gpu: a619 support
   - gpu: Fix for unclocked GMU register access
   - gpu: Devcore dump enhancements
   - client utilization via fdinfo support
   - fix fence rollover issue
   - gem: Lockdep false-positive warning fix
   - gem: Switch to pfn mappings
   - WB support on sc7180
   - dp: dropped custom bulk clock implementation
   - fix link retraining on resolution change
   - hdmi: dropped obsolete GPIO support

  tegra:
   - context isolation for host1x engines
   - tegra234 soc support

  mediatek:
   - add vdosys0/1 for mt8195
   - add MT8195 dp_intf driver

  exynos:
   - Fix resume function issue of exynos decon driver by calling
     clk_disable_unprepare() properly if clk_prepare_enable() failed.

  nouveau:
   - set of misc fixes/cleanups
   - display cleanups

  gma500:
   - Cleanup connector I2C handling

  hyperv:
   - Unify VRAM allocation of Gen1 and Gen2

  meson:
   - Support YUV422 output; Refcount fixes

  mgag200:
   - Support damage clipping
   - Support gamma handling
   - Protect concurrent HW access
   - Fixes to connector
   - Store model-specific limits in device-info structure
   - fix PCI register init

  panfrost:
   - Valhall support

  r128:
   - Fix bit-shift overflow

  rockchip:
   - Locking fixes in error path

  ssd130x:
   - Fix built-in linkage

  udl:
   - Always advertize VGA connector

  ast:
   - Support multiple outputs
   - fix black screen on resume

  sun4i:
   - HDMI PHY cleanups

  vc4:
   - Add support for BCM2711

  vkms:
   - Allocate output buffer with vmalloc()

  mcde:
   - Fix ref-count leak

  mxsfb/lcdif:
   - Support i.MX8MP LCD controller

  stm/ltdc:
   - Support dynamic Z order
   - Support mirroring

  ingenic:
   - Fix display at maximum resolution"

* tag 'drm-next-2022-08-03' of git://anongit.freedesktop.org/drm/drm: (1480 commits)
  drm/amd/display: Fix a compilation failure on PowerPC caused by FPU code
  drm/amdgpu: enable support for psp 13.0.4 block
  drm/amdgpu: add files for PSP 13.0.4
  drm/amdgpu: add header files for MP 13.0.4
  drm/amdgpu: correct RLC_RLCS_BOOTLOAD_STATUS offset and index
  drm/amdgpu: send msg to IMU for the front-door loading
  drm/amdkfd: use time_is_before_jiffies(a + b) to replace "jiffies - a > b"
  drm/amdgpu: fix hive reference leak when reflecting psp topology info
  drm/amd/pm: enable GFX ULV feature support for SMU13.0.0
  drm/amd/pm: update driver if header for SMU 13.0.0
  drm/amdgpu: move mes self test after drm sched re-started
  drm/amdgpu: drop non-necessary call trace dump
  drm/amdgpu: enable VCN cg and JPEG cg/pg
  drm/amdgpu: vcn_4_0_2 video codec query
  drm/amdgpu: add VCN_4_0_2 firmware support
  drm/amdgpu: add VCN function in NBIO v7.7
  drm/amdgpu: fix a vcn4 boot poll bug in emulation mode
  drm/amd/amdgpu: add memory training support for PSP_V13
  drm/amdkfd: remove an unnecessary amdgpu_bo_ref
  drm/amd/pm: Add get_gfx_off_status interface for yellow carp
  ...
2022-08-03 19:52:08 -07:00
Danilo Krummrich
5e8bf00ea9 drm/fb: remove unused includes of drm_fb_cma_helper.h
Quite a lot of drivers include the drm_fb_cma_helper.h header file
without actually making use of it's provided API, hence remove those
includes.

Suggested-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Danilo Krummrich <dakr@redhat.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20220802000405.949236-2-dakr@redhat.com
2022-08-03 18:30:20 +02:00
Ezequiel Garcia
b68277f19e drm/ssd130x: Fix pre-charge period setting
Fix small typo which causes the mask for the 'precharge1' setting
to be used with the 'precharge2' value.

Signed-off-by: Ezequiel Garcia <ezequiel@vanguardiasur.com.ar>
Acked-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220706184133.210888-1-ezequiel@vanguardiasur.com.ar
2022-07-07 10:52:03 +02:00
Ville Syrjälä
720cf96d8f drm: Drop drm_framebuffer.h from drm_crtc.h
drm_crtc.h has no need for drm_frambuffer.h, so don't include it.
Avoids useless rebuilds of the entire universe when
touching drm_framebuffer.h.

Quite a few placs do currently depend on drm_framebuffer.h without
actually including it directly. All of those need to be fixed
up.

v2: Fix up msm some more
v2: Deal with ingenic and shmobile as well

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220614095449.29311-1-ville.syrjala@linux.intel.com
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Jani Nikula <jani.nikula@intel.com>
2022-06-20 23:53:55 +03:00
Ville Syrjälä
255490f915 drm: Drop drm_edid.h from drm_crtc.h
drm_crtc.h has no need for drm_edid.h, so don't include it.
Avoids useless rebuilds of the entire universe when
touching drm_edid.h.

Quite a few placs do currently depend on drm_edid.h without
actually including it directly. All of those need to be fixed
up.

v2: Fix up i915 and msm some more
v3: Fix alphabetical ordering (Sam)

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220614090245.30283-1-ville.syrjala@linux.intel.com
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Acked-by: Jani Nikula <jani.nikula@intel.com>
2022-06-20 23:53:55 +03:00
Uwe Kleine-König
a4359b4e47 drm/ssd130x: Make ssd130x_remove() return void
This function returns zero unconditionally, so there isn't any benefit
of returning a value. Make it return void to be able to see at a glance
that the return value of ssd130x_i2c_remove() is always zero.

This patch is a preparation for making i2c remove callbacks return void.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Acked-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220425192306.59800-1-u.kleine-koenig@pengutronix.de
2022-04-26 09:43:37 +02:00
Javier Martinez Canillas
4203e88ba8 drm/solomon: Move device info from ssd130x-i2c to the core driver
These are declared in the ssd130x-i2c transport driver but the information
is not I2C specific, and could be used by other SSD130x transport drivers.

Move them to the ssd130x core driver and just set the OF device entries to
an ID that could be used to lookup the correct device info from an array.

While being there, also move the SSD130X_DATA and SSD130X_COMMAND control
bytes. Since even though they are used by the I2C interface, they could
also be useful for other transport protocols such as SPI.

Suggested-by: Chen-Yu Tsai <wens@kernel.org>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Acked-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://patchwork.freedesktop.org/patch/msgid/20220419214824.335075-5-javierm@redhat.com
2022-04-20 18:48:17 +02:00
Chen-Yu Tsai
b0daaa5cfa drm/ssd130x: Support page addressing mode
On the SINO WEALTH SH1106, which is mostly compatible with the SSD1306,
only the basic page addressing mode is supported. This addressing mode
is not as easy to use compared to the currently supported horizontal
addressing mode, as the page address has to be set prior to writing
out each page, and each page must be written out separately as a result.
Also, there is no way to force the column address to wrap around early,
thus the column address must also be reset for each page to be accurate.

Add support for this addressing mode, with a flag to choose it. This
flag is designed to be set from the device info data structure, but
can be extended to be explicitly forced on through a device tree
property if such a need arises.

Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220406172956.3953-4-wens@kernel.org
2022-04-07 15:26:02 +02:00
Maxime Ripard
9cbbd694a5 Merge drm/drm-next into drm-misc-next
Let's start the 5.19 development cycle.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
2022-04-05 11:06:58 +02:00
Geert Uytterhoeven
4442ac1af1 drm/ssd130x: Reduce temporary buffer sizes
ssd130x_clear_screen() allocates a temporary buffer sized to hold one
byte per pixel, while it only needs to hold one bit per pixel.

ssd130x_fb_blit_rect() allocates a temporary buffer sized to hold one
byte per pixel for the whole frame buffer, while it only needs to hold
one bit per pixel for the part that is to be updated.
Pass dst_pitch to drm_fb_xrgb8888_to_mono(), as we have already
calculated it anyway.

Fixes: a61732e808 ("drm: Add driver for Solomon SSD130x OLED displays")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220317081830.1211400-5-geert@linux-m68k.org
2022-03-17 12:29:43 +01:00
Geert Uytterhoeven
a97e753fd3 drm/ssd130x: Fix rectangle updates
The rectangle update functions ssd130x_fb_blit_rect() and
ssd130x_update_rect() do not behave correctly when x1 != 0 or y1 !=
0, or when y1 or y2 are not aligned to display page boundaries.
E.g. when used as a text console, only the first line of text is shown
on the display.

  1. The buffer passed by ssd130x_fb_blit_rect() points to the first
     byte of monochrome bitmap data, and thus has its origin at (x1,
     y1), while ssd130x_update_rect() assumes it is at (0, 0).
     Fix ssd130x_update_rect() by changing the vertical and horizontal
     loop ranges, and adding the offsets only when needed.

  2. In ssd130x_fb_blit_rect(), align y1 and y2 to the display page
     boundaries before doing the color conversion, so the full page
     is converted and updated.
     Remove the correction for an unaligned y1 from
     ssd130x_update_rect(), and add a check to make sure y1 is aligned.

Fixes: a61732e808 ("drm: Add driver for Solomon SSD130x OLED displays")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220317081830.1211400-4-geert@linux-m68k.org
2022-03-17 12:29:42 +01:00
Geert Uytterhoeven
9b13a3fcd3 drm/format-helper: Rename drm_fb_xrgb8888_to_mono_reversed()
There is no "reversed" handling in drm_fb_xrgb8888_to_mono_reversed():
the function just converts from color to grayscale, and reduces the
number of grayscale levels from 256 to 2 (i.e. brightness 0-127 is
mapped to 0, 128-255 to 1).  All "reversed" handling is done in the
repaper driver, where this function originated.

Hence make this clear by renaming drm_fb_xrgb8888_to_mono_reversed() to
drm_fb_xrgb8888_to_mono(), and documenting the black/white pixel
mapping.

Fixes: bcf8b616de ("drm/format-helper: Add drm_fb_xrgb8888_to_mono_reversed()")
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Acked-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220317081830.1211400-2-geert@linux-m68k.org
2022-03-17 12:29:40 +01:00
Chen-Yu Tsai
a134109c30 drm: ssd130x: Always apply segment remap setting
Currently the ssd130x driver only sets the segment remap setting when
the device tree requests it; it however does not clear the setting if
it is not requested. This leads to the setting incorrectly persisting
if the hardware is always on and has no reset GPIO wired. This might
happen when a developer is trying to find the correct settings for an
unknown module, and cause the developer to get confused because the
settings from the device tree are not consistently applied.

Make the driver apply the segment remap setting consistently, setting
the value correctly based on the device tree setting. This also makes
this setting's behavior consistent with the other settings, which are
always applied.

Fixes: a61732e808 ("drm: Add driver for Solomon SSD130x OLED displays")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220308160758.26060-2-wens@kernel.org
2022-03-09 14:55:52 +01:00
Chen-Yu Tsai
efb37e66b7 drm: ssd130x: Fix COM scan direction register mask
The SSD130x's command to toggle COM scan direction uses bit 3 and only
bit 3 to set the direction of the scanout. The driver has an incorrect
GENMASK(3, 2), causing the setting to be set on bit 2, rendering it
ineffective.

Fix the mask to only bit 3, so that the requested setting is applied
correctly.

Fixes: a61732e808 ("drm: Add driver for Solomon SSD130x OLED displays")
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Javier Martinez Canillas <javierm@redhat.com>
Tested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220308160758.26060-1-wens@kernel.org
2022-03-09 14:55:52 +01:00
Dave Airlie
c9e9ce0b6f Merge tag 'drm-misc-next-2022-03-03' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
drm-misc-next for v5.18:

UAPI Changes:

Cross-subsystem Changes:
- Improve performance of some fbdev ops, in some cases up to 6x faster.

Core Changes:
- Some small DP fixes.
- Find panels in subnodes of OF devices, and add of_get_drm_panel_display_mode
  to retrieve mode.
- Add drm_object_property_get_default_value and use it for resetting
  zpos in plane state reset, removing the need for individual drivers
  to do it.
- Same for color encoding and color range props.
- Update panic handling todo doc.
- Add todo that format conversion helpers should be sped up similarly to fbdev ops.

Driver Changes:
- Add panel orientation property to simpledrm for quirked panels.
- Assorted small fixes to tiny/repaper, nouveau, stm, omap, ssd130x.
- Add crc support to stm/ltdc.
- Add MIPI DBI compatible SPI driver
- Assorted small fixes to tiny panels and bridge drivers.
- Add AST2600 support to aspeed.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/48fabd78-ade9-f80b-c724-13726c7be69e@linux.intel.com
2022-03-04 13:41:57 +10:00
Colin Ian King
701920ca98 drm/ssd130x: remove redundant initialization of pointer mode
Pointer mode is being assigned a value that is never read, it is
being re-assigned later with a new value. The initialization is
redundant and can be removed.

Cleans up clang scan build warning:
drivers/gpu/drm/solomon/ssd130x.c:582:27: warning: Value stored
to 'mode' during its initialization is never read [deadcode.DeadStores]

Signed-off-by: Colin Ian King <colin.i.king@gmail.com>
Acked-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220302175309.1098827-1-colin.i.king@gmail.com
2022-03-03 09:28:55 +01:00
Dave Airlie
54f43c17d6 Merge tag 'drm-misc-next-2022-02-23' of git://anongit.freedesktop.org/drm/drm-misc into drm-next
drm-misc-next for v5.18:

UAPI Changes:

Cross-subsystem Changes:
- Split out panel-lvds and lvds dt bindings .
- Put yes/no on/off disabled/enabled strings in linux/string_helpers.h
  and use it in drivers and tomoyo.
- Clarify dma_fence_chain and dma_fence_array should never include eachother.
- Flatten chains in syncobj's.
- Don't double add in fbdev/defio when page is already enlisted.
- Don't sort deferred-I/O pages by default in fbdev.

Core Changes:
- Fix missing pm_runtime_put_sync in bridge.
- Set modifier support to only linear fb modifier if drivers don't
  advertise support.
- As a result, we remove allow_fb_modifiers.
- Add missing clear for EDID Deep Color Modes in drm_reset_display_info.
- Assorted documentation updates.
- Warn once in drm_clflush if there is no arch support.
- Add missing select for dp helper in drm_panel_edp.
- Assorted small fixes.
- Improve fb-helper's clipping handling.
- Don't dump shmem mmaps in a core dump.
- Add accounting to ttm resource manager, and use it in amdgpu.
- Allow querying the detected eDP panel through debugfs.
- Add helpers for xrgb8888 to 8 and 1 bits gray.
- Improve drm's buddy allocator.
- Add selftests for the buddy allocator.

Driver Changes:
- Add support for nomodeset to a lot of drm drivers.
- Use drm_module_*_driver in a lot of drm drivers.
- Assorted small fixes to bridge/lt9611, v3d, vc4, vmwgfx, mxsfb, nouveau,
  bridge/dw-hdmi, panfrost, lima, ingenic, sprd, bridge/anx7625, ti-sn65dsi86.
- Add bridge/it6505.
- Create DP and DVI-I connectors in ast.
- Assorted nouveau backlight fixes.
- Rework amdgpu reset handling.
- Add dt bindings for ingenic,jz4780-dw-hdmi.
- Support reading edid through aux channel in ingenic.
- Add a drm driver for Solomon SSD130x OLED displays.
- Add simple support for sharp LQ140M1JW46.
- Add more panels to nt35560.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/686ec871-e77f-c230-22e5-9e3bb80f064a@linux.intel.com
2022-02-25 05:50:18 +10:00
Javier Martinez Canillas
a61732e808 drm: Add driver for Solomon SSD130x OLED displays
This adds a DRM driver for SSD1305, SSD1306, SSD1307 and SSD1309 Solomon
OLED display controllers.

It's only the core part of the driver and a bus specific driver is needed
for each transport interface supported by the display controllers.

Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20220214133710.3278506-4-javierm@redhat.com
2022-02-16 13:29:04 +01:00