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authorJakub Kicinski <[email protected]>2023-03-09 22:18:59 -0800
committerJakub Kicinski <[email protected]>2023-03-09 22:22:11 -0800
commitd0ddf5065ffef45f8fce4001abe0206081c7ff10 (patch)
treeea83817cbe9fc25261eae87b85afd9fe086f479e /drivers/rtc/rtc-moxart.c
parentdb47fa2e4cbf180a39d8e6d6170962bd7d82e52d (diff)
parent44889ba56cbb3d51154660ccd15818bc77276696 (diff)
Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Documentation/bpf/bpf_devel_QA.rst b7abcd9c656b ("bpf, doc: Link to submitting-patches.rst for general patch submission info") d56b0c461d19 ("bpf, docs: Fix link to netdev-FAQ target") https://lore.kernel.org/all/[email protected]/ Signed-off-by: Jakub Kicinski <[email protected]>
Diffstat (limited to 'drivers/rtc/rtc-moxart.c')
-rw-r--r--drivers/rtc/rtc-moxart.c89
1 files changed, 36 insertions, 53 deletions
diff --git a/drivers/rtc/rtc-moxart.c b/drivers/rtc/rtc-moxart.c
index 6b24ac9e1cfa..2247dd39ee4b 100644
--- a/drivers/rtc/rtc-moxart.c
+++ b/drivers/rtc/rtc-moxart.c
@@ -10,14 +10,15 @@
* Moxa Technology Co., Ltd. <www.moxa.com>
*/
+#include <linux/err.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/delay.h>
#include <linux/rtc.h>
#include <linux/platform_device.h>
#include <linux/module.h>
-#include <linux/gpio.h>
-#include <linux/of_gpio.h>
+#include <linux/mod_devicetable.h>
+#include <linux/gpio/consumer.h>
#define GPIO_RTC_RESERVED 0x0C
#define GPIO_RTC_DATA_SET 0x10
@@ -55,7 +56,9 @@
struct moxart_rtc {
struct rtc_device *rtc;
spinlock_t rtc_lock;
- int gpio_data, gpio_sclk, gpio_reset;
+ struct gpio_desc *gpio_data;
+ struct gpio_desc *gpio_sclk;
+ struct gpio_desc *gpio_reset;
};
static int day_of_year[12] = { 0, 31, 59, 90, 120, 151, 181,
@@ -67,10 +70,10 @@ static void moxart_rtc_write_byte(struct device *dev, u8 data)
int i;
for (i = 0; i < 8; i++, data >>= 1) {
- gpio_set_value(moxart_rtc->gpio_sclk, 0);
- gpio_set_value(moxart_rtc->gpio_data, ((data & 1) == 1));
+ gpiod_set_value(moxart_rtc->gpio_sclk, 0);
+ gpiod_set_value(moxart_rtc->gpio_data, ((data & 1) == 1));
udelay(GPIO_RTC_DELAY_TIME);
- gpio_set_value(moxart_rtc->gpio_sclk, 1);
+ gpiod_set_value(moxart_rtc->gpio_sclk, 1);
udelay(GPIO_RTC_DELAY_TIME);
}
}
@@ -82,11 +85,11 @@ static u8 moxart_rtc_read_byte(struct device *dev)
u8 data = 0;
for (i = 0; i < 8; i++) {
- gpio_set_value(moxart_rtc->gpio_sclk, 0);
+ gpiod_set_value(moxart_rtc->gpio_sclk, 0);
udelay(GPIO_RTC_DELAY_TIME);
- gpio_set_value(moxart_rtc->gpio_sclk, 1);
+ gpiod_set_value(moxart_rtc->gpio_sclk, 1);
udelay(GPIO_RTC_DELAY_TIME);
- if (gpio_get_value(moxart_rtc->gpio_data))
+ if (gpiod_get_value(moxart_rtc->gpio_data))
data |= (1 << i);
udelay(GPIO_RTC_DELAY_TIME);
}
@@ -101,15 +104,15 @@ static u8 moxart_rtc_read_register(struct device *dev, u8 cmd)
local_irq_save(flags);
- gpio_direction_output(moxart_rtc->gpio_data, 0);
- gpio_set_value(moxart_rtc->gpio_reset, 1);
+ gpiod_direction_output(moxart_rtc->gpio_data, 0);
+ gpiod_set_value(moxart_rtc->gpio_reset, 1);
udelay(GPIO_RTC_DELAY_TIME);
moxart_rtc_write_byte(dev, cmd);
- gpio_direction_input(moxart_rtc->gpio_data);
+ gpiod_direction_input(moxart_rtc->gpio_data);
udelay(GPIO_RTC_DELAY_TIME);
data = moxart_rtc_read_byte(dev);
- gpio_set_value(moxart_rtc->gpio_sclk, 0);
- gpio_set_value(moxart_rtc->gpio_reset, 0);
+ gpiod_set_value(moxart_rtc->gpio_sclk, 0);
+ gpiod_set_value(moxart_rtc->gpio_reset, 0);
udelay(GPIO_RTC_DELAY_TIME);
local_irq_restore(flags);
@@ -124,13 +127,13 @@ static void moxart_rtc_write_register(struct device *dev, u8 cmd, u8 data)
local_irq_save(flags);
- gpio_direction_output(moxart_rtc->gpio_data, 0);
- gpio_set_value(moxart_rtc->gpio_reset, 1);
+ gpiod_direction_output(moxart_rtc->gpio_data, 0);
+ gpiod_set_value(moxart_rtc->gpio_reset, 1);
udelay(GPIO_RTC_DELAY_TIME);
moxart_rtc_write_byte(dev, cmd);
moxart_rtc_write_byte(dev, data);
- gpio_set_value(moxart_rtc->gpio_sclk, 0);
- gpio_set_value(moxart_rtc->gpio_reset, 0);
+ gpiod_set_value(moxart_rtc->gpio_sclk, 0);
+ gpiod_set_value(moxart_rtc->gpio_reset, 0);
udelay(GPIO_RTC_DELAY_TIME);
local_irq_restore(flags);
@@ -247,53 +250,33 @@ static int moxart_rtc_probe(struct platform_device *pdev)
if (!moxart_rtc)
return -ENOMEM;
- moxart_rtc->gpio_data = of_get_named_gpio(pdev->dev.of_node,
- "gpio-rtc-data", 0);
- if (!gpio_is_valid(moxart_rtc->gpio_data)) {
- dev_err(&pdev->dev, "invalid gpio (data): %d\n",
- moxart_rtc->gpio_data);
- return moxart_rtc->gpio_data;
- }
-
- moxart_rtc->gpio_sclk = of_get_named_gpio(pdev->dev.of_node,
- "gpio-rtc-sclk", 0);
- if (!gpio_is_valid(moxart_rtc->gpio_sclk)) {
- dev_err(&pdev->dev, "invalid gpio (sclk): %d\n",
- moxart_rtc->gpio_sclk);
- return moxart_rtc->gpio_sclk;
- }
-
- moxart_rtc->gpio_reset = of_get_named_gpio(pdev->dev.of_node,
- "gpio-rtc-reset", 0);
- if (!gpio_is_valid(moxart_rtc->gpio_reset)) {
- dev_err(&pdev->dev, "invalid gpio (reset): %d\n",
- moxart_rtc->gpio_reset);
- return moxart_rtc->gpio_reset;
- }
-
- spin_lock_init(&moxart_rtc->rtc_lock);
- platform_set_drvdata(pdev, moxart_rtc);
-
- ret = devm_gpio_request(&pdev->dev, moxart_rtc->gpio_data, "rtc_data");
+ moxart_rtc->gpio_data = devm_gpiod_get(&pdev->dev, "rtc-data",
+ GPIOD_IN);
+ ret = PTR_ERR_OR_ZERO(moxart_rtc->gpio_data);
if (ret) {
- dev_err(&pdev->dev, "can't get rtc_data gpio\n");
+ dev_err(&pdev->dev, "can't get rtc data gpio: %d\n", ret);
return ret;
}
- ret = devm_gpio_request_one(&pdev->dev, moxart_rtc->gpio_sclk,
- GPIOF_DIR_OUT, "rtc_sclk");
+ moxart_rtc->gpio_sclk = devm_gpiod_get(&pdev->dev, "rtc-sclk",
+ GPIOD_ASIS);
+ ret = PTR_ERR_OR_ZERO(moxart_rtc->gpio_sclk);
if (ret) {
- dev_err(&pdev->dev, "can't get rtc_sclk gpio\n");
+ dev_err(&pdev->dev, "can't get rtc sclk gpio: %d\n", ret);
return ret;
}
- ret = devm_gpio_request_one(&pdev->dev, moxart_rtc->gpio_reset,
- GPIOF_DIR_OUT, "rtc_reset");
+ moxart_rtc->gpio_reset = devm_gpiod_get(&pdev->dev, "rtc-reset",
+ GPIOD_ASIS);
+ ret = PTR_ERR_OR_ZERO(moxart_rtc->gpio_reset);
if (ret) {
- dev_err(&pdev->dev, "can't get rtc_reset gpio\n");
+ dev_err(&pdev->dev, "can't get rtc reset gpio: %d\n", ret);
return ret;
}
+ spin_lock_init(&moxart_rtc->rtc_lock);
+ platform_set_drvdata(pdev, moxart_rtc);
+
moxart_rtc->rtc = devm_rtc_device_register(&pdev->dev, pdev->name,
&moxart_rtc_ops,
THIS_MODULE);