lkml.org 
[lkml]   [2019]   [Mar]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH 38/42] drivers: gpio: vr41xx: use devm_platform_ioremap_resource()
Date
Use the new helper that wraps the calls to platform_get_resource()
and devm_ioremap_resource() together.

this driver deserves a bit more cleanup, to get rid of the global
variable giu_base, which makes it single-instance-only.

Signed-off-by: Enrico Weigelt, metux IT consult <info@metux.net>
---
drivers/gpio/gpio-vr41xx.c | 19 +++++--------------
1 file changed, 5 insertions(+), 14 deletions(-)

diff --git a/drivers/gpio/gpio-vr41xx.c b/drivers/gpio/gpio-vr41xx.c
index b13a49c..98cd715 100644
--- a/drivers/gpio/gpio-vr41xx.c
+++ b/drivers/gpio/gpio-vr41xx.c
@@ -467,10 +467,9 @@ static int vr41xx_gpio_to_irq(struct gpio_chip *chip, unsigned offset)

static int giu_probe(struct platform_device *pdev)
{
- struct resource *res;
unsigned int trigger, i, pin;
struct irq_chip *chip;
- int irq, ret;
+ int irq;

switch (pdev->id) {
case GPIO_50PINS_PULLUPDOWN:
@@ -489,21 +488,14 @@ static int giu_probe(struct platform_device *pdev)
return -ENODEV;
}

- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res)
- return -EBUSY;
-
- giu_base = ioremap(res->start, resource_size(res));
- if (!giu_base)
- return -ENOMEM;
+ giu_base = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(giu_base))
+ return PTR_ERR(giu_base);

vr41xx_gpio_chip.parent = &pdev->dev;

- ret = gpiochip_add_data(&vr41xx_gpio_chip, NULL);
- if (!ret) {
- iounmap(giu_base);
+ if (gpiochip_add_data(&vr41xx_gpio_chip, NULL))
return -ENODEV;
- }

giu_write(GIUINTENL, 0);
giu_write(GIUINTENH, 0);
@@ -534,7 +526,6 @@ static int giu_probe(struct platform_device *pdev)
static int giu_remove(struct platform_device *pdev)
{
if (giu_base) {
- iounmap(giu_base);
giu_base = NULL;
}

--
1.9.1
\
 
 \ /
  Last update: 2019-03-11 19:57    [W:0.956 / U:0.244 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site