From: Matthijs Kooijman <matthijs@stdin.nl>
To: Heiko Stuebner <heiko@sntech.de>
Cc: linux-rockchip@lists.infradead.org, linux-gpio@vger.kernel.org
Subject: rockchip: Make gpiod pin control work and add gpio-ranges
Date: Fri, 5 Dec 2025 21:06:50 +0100 [thread overview]
Message-ID: <20251205201254.2865179-2-matthijs@stdin.nl> (raw)
The first patch fixes pin config (e.g. bias) done by userspace via the
gpiod interface, which was not implemented for all rockchip boards.
The second patch is just because I was messing with this code already
and had a test setup ready. It makes gpio-ranges explicit for the rk3308
instead of relying on the (possibly fragile) legacy workaround in
gpio-rockchip to add them automatically.
I think the first patch might be a good candidate to backport to the
stable releases, since it makes a userspace interface functional that
currently silently fails. However, it is not a clear bugfix and I am not
super familiar with the rules for -stable, so if you think this is not
appropriate, feel free to drop the stable Cc from the patch when merging.
Both patches were tested on a rock pi s with a rk3308.
next reply other threads:[~2025-12-05 20:25 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-12-05 20:06 Matthijs Kooijman [this message]
2025-12-05 20:06 ` [PATCH 1/2] gpio: rockchip: Call pinctrl for gpio config Matthijs Kooijman
2025-12-05 20:06 ` [PATCH 2/2] arm64: dts: rockchip: rk3308: Add gpio-ranges properties Matthijs Kooijman
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