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MIPS: TXX9: rbtx4927: Use GPIO lookup table for SIO DTR

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Convert SIO DTR handling from legacy GPIO calls to GPIO descriptors
using a GPIO lookup table.

Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Reviewed-by: Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Reviewed-by: Linus Walleij <linusw@kernel.org>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
This commit is contained in:
Geert Uytterhoeven 2026-07-01 12:11:38 +02:00 committed by Thomas Bogendoerfer
parent 4e913a7350
commit 0caeacb116
1 changed files with 13 additions and 3 deletions
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16
arch/mips/txx9/rbtx4927/setup.c
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@ -49,6 +49,7 @@
#include <linux/platform_device.h>
#include <linux/delay.h>
#include <linux/gpio.h>
#include <linux/gpio/machine.h>
#include <linux/leds.h>
#include <asm/io.h>
#include <asm/reboot.h>
@ -157,11 +158,20 @@ static inline void tx4927_pci_setup(void) {}
static inline void tx4937_pci_setup(void) {}
#endif /* CONFIG_PCI */
/* TX4927-SIO DTR on (PIO[15]) */
GPIO_LOOKUP_SINGLE(sio_gpio_table, NULL, "TXx9", 15, "sio-dtr",
GPIO_ACTIVE_HIGH);
static void __init rbtx4927_gpio_init(void)
{
/* TX4927-SIO DTR on (PIO[15]) */
gpio_request(15, "sio-dtr");
gpio_direction_output(15, 1);
struct gpio_desc *d;
gpiod_add_lookup_table(&sio_gpio_table);
d = gpiod_get(NULL, "sio-dtr", GPIOD_OUT_HIGH);
if (IS_ERR(d))
pr_err("Unable to get sio-dtr GPIO descriptor\n");
else
gpiod_put(d);
tx4927_sio_init(0, 0);
}