[PATCH v5 0/2] drm/panel: support Waveshare DSI TOUCH kits

[Dmitry Baryshkov]

The Waveshare DSI TOUCH family of DSI panel kits feature different DSI
video-mode panels, bundled with the separate controlling circuit,
produing necessary voltages from the 3.3V and 5V supplies. Extend panel
drivers to support those Waveshare panels and also add GPIO driver for
the onboard control circuitry.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxxxxxxxx>
---
Changes in v5:
- Dropped applied patches, leaving just GPIO part.
- Dropped panel example from the GPIO controller node, it's has no added
  value.
- Link to v4: https://patch.msgid.link/20260418-waveshare-dsi-touch-v4-0-b249f3e702bd@xxxxxxxxxxxxxxxx

Changes in v4:
- Dropped patches applied to drm-misc-next
- Link to v3: https://patch.msgid.link/20260413-waveshare-dsi-touch-v3-0-3aeb53022c32@xxxxxxxxxxxxxxxx

Changes in v3:
- Fix another typo in the focaltech,ota7290b schema, sorted out voltage
  supplies in the schema and in the driver
- Dropped Ricardo's T-B from bindings patch (Krzysztof)
- In the Waveshare GPIO driver bumped max register to REG_VERSION (Jie
  Gan)
- Add a lanes vs config check in the JD9365 driver (Jie Gan)
- Link to v2: https://patch.msgid.link/20260411-waveshare-dsi-touch-v2-0-75cdbeac5156@xxxxxxxxxxxxxxxx

Changes in v2:
- Fixed errors in focaltech,ota7290b and waveshare,dsi-touch-gpio schemas
- Split the JD9365 patch, making the changes more obvious (and
  describing panel classes)
- Cleaned up GPIO driver: moved NUM_GPIOS from the enum, switched to
  guard(), added regmap error handling, dropped
waveshare_gpio_i2c_read() (Bartosz)
- Link to v1: https://patch.msgid.link/20260401-waveshare-dsi-touch-v1-0-5e9119b5a014@xxxxxxxxxxxxxxxx

---
Dmitry Baryshkov (2):
      dt-bindings: gpio: describe Waveshare GPIO controller
      gpio: add GPIO controller found on Waveshare DSI TOUCH panels

 .../bindings/gpio/waveshare,dsi-touch-gpio.yaml    |  73 ++++++++
 drivers/gpio/Kconfig                               |  10 +
 drivers/gpio/Makefile                              |   1 +
 drivers/gpio/gpio-waveshare-dsi.c                  | 208 +++++++++++++++++++++
 4 files changed, 292 insertions(+)
---
base-commit: 735d2f48cadaa9a87e7c7601667878de70c771c5
change-id: 20260401-waveshare-dsi-touch-e1717a1ffc40

Best regards,
--  
With best wishes
Dmitry