This is a note to let you know that I've just added the patch titled
pinctrl: rockchip: add pinmux_ops.gpio_set_direction callback
to the 5.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
pinctrl-rockchip-add-pinmux_ops.gpio_set_direction-callback.patch
and it can be found in the queue-5.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 4635c0e2a7f7f3568cbfccae70121f9835efa62c Mon Sep 17 00:00:00 2001
From: Quentin Schulz <quentin.schulz@xxxxxxxxxxxxxxxxxxxxx>
Date: Fri, 30 Sep 2022 15:20:32 +0200
Subject: pinctrl: rockchip: add pinmux_ops.gpio_set_direction callback
From: Quentin Schulz <quentin.schulz@xxxxxxxxxxxxxxxxxxxxx>
commit 4635c0e2a7f7f3568cbfccae70121f9835efa62c upstream.
Before the split of gpio and pinctrl sections in their own driver,
rockchip_set_mux was called in pinmux_ops.gpio_set_direction for
configuring a pin in its GPIO function.
This is essential for cases where pinctrl is "bypassed" by gpio
consumers otherwise the GPIO function is not configured for the pin and
it does not work. Such was the case for the sysfs/libgpiod userspace
GPIO handling.
Let's re-implement the pinmux_ops.gpio_set_direction callback so that
the gpio subsystem can request from the pinctrl driver to put the pin in
its GPIO function.
Fixes: 9ce9a02039de ("pinctrl/rockchip: drop the gpio related codes")
Cc: stable@xxxxxxxxxxxxxxx
Reviewed-by: Heiko Stuebner <heiko@xxxxxxxxx>
Signed-off-by: Quentin Schulz <quentin.schulz@xxxxxxxxxxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20220930132033.4003377-2-foss+kernel@xxxxxxxxx
Signed-off-by: Linus Walleij <linus.walleij@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/pinctrl/pinctrl-rockchip.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
--- a/drivers/pinctrl/pinctrl-rockchip.c
+++ b/drivers/pinctrl/pinctrl-rockchip.c
@@ -2393,11 +2393,24 @@ static int rockchip_pmx_set(struct pinct
return 0;
}
+static int rockchip_pmx_gpio_set_direction(struct pinctrl_dev *pctldev,
+ struct pinctrl_gpio_range *range,
+ unsigned offset,
+ bool input)
+{
+ struct rockchip_pinctrl *info = pinctrl_dev_get_drvdata(pctldev);
+ struct rockchip_pin_bank *bank;
+
+ bank = pin_to_bank(info, offset);
+ return rockchip_set_mux(bank, offset - bank->pin_base, RK_FUNC_GPIO);
+}
+
static const struct pinmux_ops rockchip_pmx_ops = {
.get_functions_count = rockchip_pmx_get_funcs_count,
.get_function_name = rockchip_pmx_get_func_name,
.get_function_groups = rockchip_pmx_get_groups,
.set_mux = rockchip_pmx_set,
+ .gpio_set_direction = rockchip_pmx_gpio_set_direction,
};
/*
Patches currently in stable-queue which might be from quentin.schulz@xxxxxxxxxxxxxxxxxxxxx are
queue-5.19/pinctrl-rockchip-add-pinmux_ops.gpio_set_direction-callback.patch
queue-5.19/gpio-rockchip-request-gpio-mux-to-pinctrl-when-setting-direction.patch
