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generic: add gpio-regmap request/free ops patch
This patch is needed on bmips since it fixes issues with GPIOs not being properly configured due to gpio_request_enable not being called on bcm63xx devices. Therefore we can now drop the bcm63268 gpio function patch. Backported from f5b1d340be9488af71e6522c3f10f1ebd1a35446 with the exception of the realtek and bmips patches removal. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> (cherry picked from commit f5b1d340be9488af71e6522c3f10f1ebd1a35446)
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To: Michael Walle <mwalle@kernel.org>,
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Subject: [PATCH] gpio: regmap: Use generic request/free ops
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Date: Tue, 7 Jan 2025 21:16:20 +0100
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Set the gpiochip request and free ops to the generic implementations.
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This way a user can provide a gpio-ranges property defined for a pinmux,
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easing muxing of gpio functions. Provided that the pin controller
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implementents the pinmux op .gpio_request_enable(), pins will
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automatically be muxed to their GPIO function when requested.
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Signed-off-by: Sander Vanheule <sander@svanheule.net>
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Acked-by: Michael Walle <mwalle@kernel.org>
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---
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Álvaro has submitted a similar patch today. My implementation's impact
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is more limited, but I hadn't gotten around to submitting it yet.
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For the original (short) discussion, see:
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https://lore.kernel.org/linux-gpio/20250107102735.317446-1-noltari@gmail.com/T/#t
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drivers/gpio/gpio-regmap.c | 2 ++
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1 file changed, 2 insertions(+)
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--- a/drivers/gpio/gpio-regmap.c
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+++ b/drivers/gpio/gpio-regmap.c
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@@ -263,6 +263,8 @@ struct gpio_regmap *gpio_regmap_register
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*/
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chip->can_sleep = true;
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+ chip->request = gpiochip_generic_request;
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+ chip->free = gpiochip_generic_free;
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chip->get = gpio_regmap_get;
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if (gpio->reg_set_base && gpio->reg_clr_base)
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chip->set = gpio_regmap_set_with_clear;
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