[PATCH v3 00/13] ARM: dts: imx6ull-colibri: device tree improvements

[Shawn Guo]

On Fri, May 06, 2022 at 03:24:03PM +0200, Marcel Ziswiler wrote:
> From: Marcel Ziswiler <marcel.ziswiler at toradex.com>
> 
> 
> This is a general update of the Colibri iMX6ULL device tree files.
> 
> The Toradex Colibri family is composed of a SoM that can be plugged on
> various carrier boards, with carrier boards allowing multiple optional
> accessories (e.g. display, camera, ...).
> 
> The device tree sources are structured into a SoM dtsi and a carrier dts
> which then includes the SoM dtsi. The SoM dtsi defines and enables the
> functionality self-contained on the SoM and prepares for the
> functionality provided by the carrier HW or accessories so that the
> carrier dts then can enable or amend nodes provided. Accessories are
> enabled in overlays depending on HW configuration.
> 
> Please find the following colibri-imx6ull device trees improvements:
> 
> - MMC/SD
> The original Colibri specification only defined 3.3 volt TTL signaling
> and relied on external on-carrier pull-ups for the SD_DATA[0..3] lines.
> The latest carrier boards like Iris V2 on the other hand are now UHS-I
> compliant by leaving such external on-carrier pull-ups away relying on
> module- or even SoC-level ones which pull up to resp. signaling voltage.
> In such cases, the carrier board-level device tree may explicitly delete
> the no-1-8-v property to enable full UHS-I support.
> Also, fix SD/MMC regulator for the carrier boards using UHS-I modes.
> 
> - FEC
> Provide a proper phy-supply for the FEC, actually switched by the 50 Mhz
> RMII interface clock using a regulator-fixed-clock that is now properly
> stated. The reference commit for such regulator can be found at commit
> 8959e5324485 ("regulator: fixed: add possibility to enable by clock").
> 
> - I2C
> Switched on 22 kOhm pull-ups and lower the I2C frequency to 40 kHz to
> get more reliable communication.
> 
> - Atmel Touchscreen
> The Toradex 7" Capacitive and 10" LVDS touch screens are Atmel MXT
> peripherals available on the I2C bus for touchscreen events. Add
> atmel_mxt_ts node to the module-level device tree. Also, provide pinmux
> configuration for the INT/RST inputs from SODIMM pins 106/107 for most
> carrier boards or an external touchscreen adapter inputs configured to
> SODIMM pins 28/30.
> 
> Changes in v3:
> - Fixed reset GPIO polarity in-line with the following upstream commit:
>   feedaacdadfc ("Input: atmel_mxt_ts - fix up inverted RESET handler")
> - Fixed comment using more common SODIMM followed by number naming.
> - Replaced underscores by dashes in GPIO hog node names.
> - Added more LVDS specific GPIO hogs in-line with other modules.
> - Re-based on top of Shawn's imx/dt branch.
> - Dropped [PATCH v2 08/14] dt-bindings: arm: fsl: add
>   toradex,colibri-imx6ull which already got applied by Shawn. Thanks!
> 
> Changes in v2:
> - Fixed pinctrl node names as suggested by Shawn.
> - Fix alphabetical node order as suggested by Shawn.
> - Dropped [PATCH v1 02/14] ARM: dts: imx6ull-colibri: fix vqmmc
>   regulator which already got applied by Shawn. Thanks!
> - New commit with pinctrl node name improvements as suggested by Shawn.
> 
> Denys Drozdov (4):
>   ARM: dts: imx6ull-colibri: add touchscreen device nodes
>   ARM: dts: imx6ull-colibri: update device trees to support overlays
>   ARM: dts: imx6ull-colibri: add support for toradex iris carrier boards
>   ARM: dts: imx6ull-colibri: add support for toradex aster carrier
>     boards
> 
> Marcel Ziswiler (4):
>   ARM: dts: imx6ull-colibri: fix nand bch geometry
>   ARM: dts: imx6ull-colibri: add/update some comments
>   ARM: dts: imx6ull-colibri: move gpio-keys node to som dtsi
>   ARM: dts: imx6ull-colibri: improve pinctrl node names
> 
> Max Krummenacher (1):
>   ARM: dts: imx6ull-colibri: change touch i2c parameters
> 
> Oleksandr Suvorov (1):
>   ARM: dts: imx6ull-colibri: add gpio-line-names
> 
> Philippe Schenker (3):
>   ARM: dts: imx6ull-colibri: use pull-down for adc pins
>   ARM: dts: imx6ull-colibri: add phy-supply to fec
>   ARM: dts: imx6ull-colibri: update usdhc1 pixmux and signaling

Applied all, thanks!