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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 fromf5b1d340bewith the exception of the realtek and bmips patches removal. Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com> (cherry picked from commitf5b1d340be)
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To: Michael Walle <mwalle@kernel.org>,
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florian.fainelli@broadcom.com, Sander Vanheule <sander@svanheule.net>
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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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