[PATCH] MIPS: Lantiq: switch vmmc to use gpiod API

From: Dmitry Torokhov
Date: Fri Sep 23 2022 - 00:55:50 EST


This switches vmmc to use gpiod API instead of OF-specific legacy gpio
API that we want to stop exporting from gpiolib.

Signed-off-by: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx>
---
arch/mips/lantiq/xway/vmmc.c | 22 +++++++++++++---------
1 file changed, 13 insertions(+), 9 deletions(-)

diff --git a/arch/mips/lantiq/xway/vmmc.c b/arch/mips/lantiq/xway/vmmc.c
index 7a14da8d9d15..a1947306ac18 100644
--- a/arch/mips/lantiq/xway/vmmc.c
+++ b/arch/mips/lantiq/xway/vmmc.c
@@ -4,9 +4,10 @@
* Copyright (C) 2012 John Crispin <john@xxxxxxxxxxx>
*/

+#include <linux/err.h>
#include <linux/export.h>
+#include <linux/gpio/consumer.h>
#include <linux/of_platform.h>
-#include <linux/of_gpio.h>
#include <linux/dma-mapping.h>

#include <lantiq_soc.h>
@@ -25,6 +26,7 @@ EXPORT_SYMBOL(ltq_get_cp1_base);
static int vmmc_probe(struct platform_device *pdev)
{
#define CP1_SIZE (1 << 20)
+ struct gpio_desc *gpio;
int gpio_count;
dma_addr_t dma;

@@ -32,16 +34,18 @@ static int vmmc_probe(struct platform_device *pdev)
(void *) CPHYSADDR(dma_alloc_coherent(&pdev->dev, CP1_SIZE,
&dma, GFP_KERNEL));

- gpio_count = of_gpio_count(pdev->dev.of_node);
+ gpio_count = gpiod_count(&pdev->dev, NULL);
while (gpio_count > 0) {
- enum of_gpio_flags flags;
- int gpio = of_get_gpio_flags(pdev->dev.of_node,
- --gpio_count, &flags);
- if (gpio_request(gpio, "vmmc-relay"))
+ gpio = devm_gpiod_get_index(&pdev->dev,
+ NULL, --gpio_count, GPIOD_OUT_HIGH);
+ if (IS_ERR(gpio)) {
+ dev_err(&pdev->dev,
+ "failed to request GPIO idx %d: %d\n",
+ gpio_count, PTR_ERR(gpio);
continue;
- dev_info(&pdev->dev, "requested GPIO %d\n", gpio);
- gpio_direction_output(gpio,
- (flags & OF_GPIO_ACTIVE_LOW) ? (0) : (1));
+ }
+
+ gpio_consumer_set_name(gpio, "vmmc-relay");
}

dev_info(&pdev->dev, "reserved %dMB at 0x%p", CP1_SIZE >> 20, cp1_base);
--
2.37.3.998.g577e59143f-goog


--
Dmitry