linux-kernel - Re: (subset) [PATCH v6 0/8] RTL8231 GPIO expander support

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Message-ID: <176122114012.40841.4682534085501812836.b4-ty@linaro.org>
Date: Thu, 23 Oct 2025 14:05:47 +0200
From: Bartosz Golaszewski <brgl@...ev.pl>
To: Michael Walle <mwalle@...nel.org>,
	Linus Walleij <linus.walleij@...aro.org>,
	Bartosz Golaszewski <brgl@...ev.pl>,
	linux-gpio@...r.kernel.org,
	Lee Jones <lee@...nel.org>,
	Pavel Machek <pavel@...nel.org>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	linux-leds@...r.kernel.org,
	devicetree@...r.kernel.org,
	Sander Vanheule <sander@...nheule.net>
Cc: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>,
	linux-kernel@...r.kernel.org
Subject: Re: (subset) [PATCH v6 0/8] RTL8231 GPIO expander support

From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>


On Tue, 21 Oct 2025 16:23:55 +0200, Sander Vanheule wrote:
> The RTL8231 GPIO and LED expander can be configured for use as an MDIO
> or SMI bus device. Currently only the MDIO mode is supported, although
> SMI mode support should be fairly straightforward, once an SMI bus
> driver is available.
> 
> Provided features by the RTL8231:
>   - Up to 37 GPIOs
>     - Configurable drive strength: 8mA or 4mA (currently unsupported)
>     - Input debouncing on GPIOs 31-36
>   - Up to 88 LEDs in multiple scan matrix groups
>     - On, off, or one of six toggling intervals
>     - "single-color mode": 2×36 single color LEDs + 8 bi-color LEDs
>     - "bi-color mode": (12 + 2×6) bi-color LEDs + 24 single color LEDs
>   - Up to one PWM output (currently unsupported)
>     - Fixed duty cycle, 8 selectable frequencies (1.2kHz - 4.8kHz)
> 
> [...]

Applied, thanks!

[1/8] gpio: regmap: Force writes for aliased data regs
      https://git.kernel.org/brgl/linux/c/ed2bd02d24947e36c9438bee1449d9bf87671b16
[2/8] gpio: regmap: Bypass cache for aliased inputs
      https://git.kernel.org/brgl/linux/c/3233741c0be59dd224e797deb2dd1621695ac95c

Best regards,
-- 
Bartosz Golaszewski <bartosz.golaszewski@...aro.org>