linux-kernel - [PATCH v5 0/1] [DRIVER] gpu: drm: add support for Yhgc ZX1000 soc chipset

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Message-ID: <20250925091715.12739-1-chuguangqing@inspur.com>
Date: Thu, 25 Sep 2025 17:17:14 +0800
From: Chu Guangqing <chuguangqing@...pur.com>
To: <tzimmermann@...e.de>, <maarten.lankhorst@...ux.intel.com>,
	<mripard@...nel.org>, <airlied@...il.com>, <simona@...ll.cc>,
	<dmitry.baryshkov@....qualcomm.com>
CC: <linux-kernel@...r.kernel.org>, <dri-devel@...ts.freedesktop.org>, Chu
 Guangqing <chuguangqing@...pur.com>
Subject: [PATCH v5 0/1] [DRIVER] gpu: drm: add support for Yhgc ZX1000 soc chipset

Hi Dmitry,

I have read Documentation/process/submitting-patches.rst. however, the content
 is quite extensive. Please point out any omissions if there are any.

Q:Is there a need to probe here just print an error?
A: it will be re-probe at detect_ctx

Q:No .disable() ?
A: yes, we have only implemented the enable function

v5:
  - remove extra level of subdiretories, change to driver/gpu/drm/yhgch
  - remove else from > +        else if (!new_plane_state->visible)
  - remove extra check in function yhgch_plane_atomic_check
  - remove the extra parentheses
  - change the author like other modules
  - use drm_edit_read function instead drm_get_edit
  - remove debug info drm_warn call
  - rename function name smi_connector_helper_detect_from_ddc to
     yhgch_connector_helper_detect_from_ddc, remove extra return statement.

v4:
  - remove  VRAM helpers from Kconfig
  - use the coding style in ast/mgag200 for the DDC
  - use plane_state->dst instead of crtc_h/w/x/y.
  - delete duplicate framebuffer's atomic_check.
  - use FIELD_PREP() directly.
  - use dev->mode_config.
  - delete unnecessary drm_atomic_helper_shutdown call
  - add AUTHOR
  - using .enable instead
  (https://lore.kernel.org/all/20250924064954.3921-1-chuguangqing@inspur.com/)

v3:
  - The order of the code blocks has been adjusted, and the "warn-on" branch
     has been removed.
  - removed the related formats for the alpha channel.
  - removed the atomic_flush function.
  - have removed the empty line.
  - have removed the error message here.
  - replaced it with the drmm_encoder_init function.
  (https://lore.kernel.org/all/20250910022311.2655-1-chuguangqing@inspur.com/)

v2:
  - Delete unnecessary comments
  - Delete unnecessary branch
  - Use drm_atomic_helper_check_plane_state
  - remove the alpha formats form this list.
  - use w,h rather than x, y
  - delete type casting
  - use a simple call to drm_atomic_helper_shutdown()
  - delete yhgch_load function
  - delete vblanking code
  - delete unneeded i2c type
  (https://lore.kernel.org/all/20250903054533.68540-1-chuguangqing@inspur.com/)

v1:
  (https://lore.kernel.org/all/20250808053508.52202-1-chuguangqing@inspur.com/)

Chu Guangqing (1):
  [DRIVER] gpu: drm: add support for Yhgc ZX1000 soc chipset

 MAINTAINERS                            |   5 +
 drivers/gpu/drm/Kconfig                |   2 +
 drivers/gpu/drm/Makefile               |   1 +
 drivers/gpu/drm/yhgch/Kconfig          |  11 +
 drivers/gpu/drm/yhgch/Makefile         |   4 +
 drivers/gpu/drm/yhgch/yhgch_drm_de.c   | 415 +++++++++++++++++++++++++
 drivers/gpu/drm/yhgch/yhgch_drm_drv.c  | 310 ++++++++++++++++++
 drivers/gpu/drm/yhgch/yhgch_drm_drv.h  |  51 +++
 drivers/gpu/drm/yhgch/yhgch_drm_i2c.c  | 114 +++++++
 drivers/gpu/drm/yhgch/yhgch_drm_regs.h | 208 +++++++++++++
 drivers/gpu/drm/yhgch/yhgch_drm_vdac.c | 121 +++++++
 11 files changed, 1242 insertions(+)
 create mode 100644 drivers/gpu/drm/yhgch/Kconfig
 create mode 100644 drivers/gpu/drm/yhgch/Makefile
 create mode 100644 drivers/gpu/drm/yhgch/yhgch_drm_de.c
 create mode 100644 drivers/gpu/drm/yhgch/yhgch_drm_drv.c
 create mode 100644 drivers/gpu/drm/yhgch/yhgch_drm_drv.h
 create mode 100644 drivers/gpu/drm/yhgch/yhgch_drm_i2c.c
 create mode 100644 drivers/gpu/drm/yhgch/yhgch_drm_regs.h
 create mode 100644 drivers/gpu/drm/yhgch/yhgch_drm_vdac.c

-- 
2.43.5