| lists.openwall.net | lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC | |
|
Open Source and information security mailing list archives
| ||
|
Message-ID: <Yk2maZuf+5FGL+eg@fedora>
Date: Wed, 6 Apr 2022 11:40:41 -0300
From: Maíra Canal <maira.canal@....br>
To: lee.jones@...aro.org, linux-kernel@...r.kernel.org
Subject: [PATCH] mfd: hi655x-pmic: Replace legacy gpio interface for gpiod
interface
Considering the current transition of the GPIO subsystem, remove all
dependencies of the legacy GPIO interface (linux/gpio.h and linux
/of_gpio.h) and replace it with the descriptor-based GPIO approach.
Signed-off-by: Maíra Canal <maira.canal@....br>
---
drivers/mfd/hi655x-pmic.c | 27 ++++++++-------------------
include/linux/mfd/hi655x-pmic.h | 4 +++-
2 files changed, 11 insertions(+), 20 deletions(-)
diff --git a/drivers/mfd/hi655x-pmic.c b/drivers/mfd/hi655x-pmic.c
index 6909d075d017..a58e42ddcd0c 100644
--- a/drivers/mfd/hi655x-pmic.c
+++ b/drivers/mfd/hi655x-pmic.c
@@ -9,14 +9,13 @@
* Fei Wang <w.f@...wei.com>
*/
-#include <linux/gpio.h>
#include <linux/io.h>
#include <linux/interrupt.h>
#include <linux/init.h>
#include <linux/mfd/core.h>
#include <linux/mfd/hi655x-pmic.h>
#include <linux/module.h>
-#include <linux/of_gpio.h>
+#include <linux/gpio/consumer.h>
#include <linux/of_platform.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
@@ -94,7 +93,6 @@ static int hi655x_pmic_probe(struct platform_device *pdev)
int ret;
struct hi655x_pmic *pmic;
struct device *dev = &pdev->dev;
- struct device_node *np = dev->of_node;
void __iomem *base;
pmic = devm_kzalloc(dev, sizeof(*pmic), GFP_KERNEL);
@@ -120,21 +118,12 @@ static int hi655x_pmic_probe(struct platform_device *pdev)
hi655x_local_irq_clear(pmic->regmap);
- pmic->gpio = of_get_named_gpio(np, "pmic-gpios", 0);
- if (!gpio_is_valid(pmic->gpio)) {
- dev_err(dev, "Failed to get the pmic-gpios\n");
- return -ENODEV;
- }
-
- ret = devm_gpio_request_one(dev, pmic->gpio, GPIOF_IN,
- "hi655x_pmic_irq");
- if (ret < 0) {
- dev_err(dev, "Failed to request gpio %d ret = %d\n",
- pmic->gpio, ret);
- return ret;
- }
+ pmic->gpio = devm_gpiod_get_optional(dev, "pmic", GPIOD_IN);
+ if (IS_ERR(pmic->gpio))
+ return dev_err_probe(dev, PTR_ERR(pmic->gpio),
+ "Failed to request hi655x pmic-gpio");
- ret = regmap_add_irq_chip(pmic->regmap, gpio_to_irq(pmic->gpio),
+ ret = regmap_add_irq_chip(pmic->regmap, gpiod_to_irq(pmic->gpio),
IRQF_TRIGGER_LOW | IRQF_NO_SUSPEND, 0,
&hi655x_irq_chip, &pmic->irq_data);
if (ret) {
@@ -149,7 +138,7 @@ static int hi655x_pmic_probe(struct platform_device *pdev)
regmap_irq_get_domain(pmic->irq_data));
if (ret) {
dev_err(dev, "Failed to register device %d\n", ret);
- regmap_del_irq_chip(gpio_to_irq(pmic->gpio), pmic->irq_data);
+ regmap_del_irq_chip(gpiod_to_irq(pmic->gpio), pmic->irq_data);
return ret;
}
@@ -160,7 +149,7 @@ static int hi655x_pmic_remove(struct platform_device *pdev)
{
struct hi655x_pmic *pmic = platform_get_drvdata(pdev);
- regmap_del_irq_chip(gpio_to_irq(pmic->gpio), pmic->irq_data);
+ regmap_del_irq_chip(gpiod_to_irq(pmic->gpio), pmic->irq_data);
mfd_remove_devices(&pdev->dev);
return 0;
}
diff --git a/include/linux/mfd/hi655x-pmic.h b/include/linux/mfd/hi655x-pmic.h
index af5d97239c0d..6a012784dd1b 100644
--- a/include/linux/mfd/hi655x-pmic.h
+++ b/include/linux/mfd/hi655x-pmic.h
@@ -12,6 +12,8 @@
#ifndef __HI655X_PMIC_H
#define __HI655X_PMIC_H
+#include <linux/gpio/consumer.h>
+
/* Hi655x registers are mapped to memory bus in 4 bytes stride */
#define HI655X_STRIDE 4
#define HI655X_BUS_ADDR(x) ((x) << 2)
@@ -53,7 +55,7 @@ struct hi655x_pmic {
struct resource *res;
struct device *dev;
struct regmap *regmap;
- int gpio;
+ struct gpio_desc *gpio;
unsigned int ver;
struct regmap_irq_chip_data *irq_data;
};
--
2.31.1
Powered by blists - more mailing lists