* [PATCH v6 1/2] staging: greybus: arche-apb-ctrl.c: Switch to the gpio descriptor interface
2019-01-11 15:33 [PATCH v6 0/2] greybus: gpio: Switch to the gpio descriptor interface Nishad Kamdar
@ 2019-01-11 15:38 ` Nishad Kamdar
2019-01-11 15:40 ` [PATCH v6 2/2] staging: greybus: arche-platform: " Nishad Kamdar
2019-01-14 9:05 ` [PATCH v6 0/2] greybus: gpio: " Johan Hovold
2 siblings, 0 replies; 5+ messages in thread
From: Nishad Kamdar @ 2019-01-11 15:38 UTC (permalink / raw)
To: Johan Hovold
Cc: Greg Kroah-Hartman, Alex Elder, Rui Miguel Silva, greybus-dev,
devel, linux-kernel, Nishad Kamdar
Use the gpiod interface instead of the deprecated old non-descriptor
interface while continuing to ignore gpio flags from device tree in
functions "deassert_reset()" and "assert_reset()" for now.
Reviewed-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Nishad Kamdar <nishadkamdar@gmail.com>
---
Changes in v6:
- Remove some unnecessary line breaks.
Changes in v5:
- Change the commit message.
- Restore the names of the gpio device-tree properties without
the "-gpio" suffix.
Changes in v4:
- Use gpiod_set_raw_value() for deassert_reset() and
assert_reset() as gpiod_set_value() will change the
sematics of these calls by taking any gpio flags
into account.
- Remove some unnecesssary line breaks.
- Restore 'spi_en' gpio check in fw_flashing_seq()
as it is currently optional.
Changes in v3:
- Add this patch in a patchset.
Changes in v2:
- Resolved compilation errors.
---
drivers/staging/greybus/arche-apb-ctrl.c | 152 +++++++++--------------
1 file changed, 61 insertions(+), 91 deletions(-)
diff --git a/drivers/staging/greybus/arche-apb-ctrl.c b/drivers/staging/greybus/arche-apb-ctrl.c
index be5ffed90bcf..bbf3ba744fc4 100644
--- a/drivers/staging/greybus/arche-apb-ctrl.c
+++ b/drivers/staging/greybus/arche-apb-ctrl.c
@@ -8,9 +8,8 @@
#include <linux/clk.h>
#include <linux/delay.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
#include <linux/interrupt.h>
-#include <linux/of_gpio.h>
#include <linux/of_irq.h>
#include <linux/module.h>
#include <linux/pinctrl/consumer.h>
@@ -24,12 +23,12 @@ static void apb_bootret_deassert(struct device *dev);
struct arche_apb_ctrl_drvdata {
/* Control GPIO signals to and from AP <=> AP Bridges */
- int resetn_gpio;
- int boot_ret_gpio;
- int pwroff_gpio;
- int wake_in_gpio;
- int wake_out_gpio;
- int pwrdn_gpio;
+ struct gpio_desc *resetn;
+ struct gpio_desc *boot_ret;
+ struct gpio_desc *pwroff;
+ struct gpio_desc *wake_in;
+ struct gpio_desc *wake_out;
+ struct gpio_desc *pwrdn;
enum arche_platform_state state;
bool init_disabled;
@@ -37,28 +36,28 @@ struct arche_apb_ctrl_drvdata {
struct regulator *vcore;
struct regulator *vio;
- int clk_en_gpio;
+ struct gpio_desc *clk_en;
struct clk *clk;
struct pinctrl *pinctrl;
struct pinctrl_state *pin_default;
/* V2: SPI Bus control */
- int spi_en_gpio;
+ struct gpio_desc *spi_en;
bool spi_en_polarity_high;
};
/*
* Note that these low level api's are active high
*/
-static inline void deassert_reset(unsigned int gpio)
+static inline void deassert_reset(struct gpio_desc *gpio)
{
- gpio_set_value(gpio, 1);
+ gpiod_set_raw_value(gpio, 1);
}
-static inline void assert_reset(unsigned int gpio)
+static inline void assert_reset(struct gpio_desc *gpio)
{
- gpio_set_value(gpio, 0);
+ gpiod_set_raw_value(gpio, 0);
}
/*
@@ -75,11 +74,10 @@ static int coldboot_seq(struct platform_device *pdev)
return 0;
/* Hold APB in reset state */
- assert_reset(apb->resetn_gpio);
+ assert_reset(apb->resetn);
- if (apb->state == ARCHE_PLATFORM_STATE_FW_FLASHING &&
- gpio_is_valid(apb->spi_en_gpio))
- devm_gpio_free(dev, apb->spi_en_gpio);
+ if (apb->state == ARCHE_PLATFORM_STATE_FW_FLASHING && apb->spi_en)
+ devm_gpiod_put(dev, apb->spi_en);
/* Enable power to APB */
if (!IS_ERR(apb->vcore)) {
@@ -101,13 +99,13 @@ static int coldboot_seq(struct platform_device *pdev)
apb_bootret_deassert(dev);
/* On DB3 clock was not mandatory */
- if (gpio_is_valid(apb->clk_en_gpio))
- gpio_set_value(apb->clk_en_gpio, 1);
+ if (apb->clk_en)
+ gpiod_set_value(apb->clk_en, 1);
usleep_range(100, 200);
/* deassert reset to APB : Active-low signal */
- deassert_reset(apb->resetn_gpio);
+ deassert_reset(apb->resetn);
apb->state = ARCHE_PLATFORM_STATE_ACTIVE;
@@ -136,25 +134,25 @@ static int fw_flashing_seq(struct platform_device *pdev)
return ret;
}
- if (gpio_is_valid(apb->spi_en_gpio)) {
+ if (apb->spi_en) {
unsigned long flags;
if (apb->spi_en_polarity_high)
- flags = GPIOF_OUT_INIT_HIGH;
+ flags = GPIOD_OUT_HIGH;
else
- flags = GPIOF_OUT_INIT_LOW;
+ flags = GPIOD_OUT_LOW;
- ret = devm_gpio_request_one(dev, apb->spi_en_gpio,
- flags, "apb_spi_en");
- if (ret) {
- dev_err(dev, "Failed requesting SPI bus en gpio %d\n",
- apb->spi_en_gpio);
+ apb->spi_en = devm_gpiod_get(dev, "spi-en", flags);
+ if (IS_ERR(apb->spi_en)) {
+ ret = PTR_ERR(apb->spi_en);
+ dev_err(dev, "Failed requesting SPI bus en GPIO: %d\n",
+ ret);
return ret;
}
}
/* for flashing device should be in reset state */
- assert_reset(apb->resetn_gpio);
+ assert_reset(apb->resetn);
apb->state = ARCHE_PLATFORM_STATE_FW_FLASHING;
return 0;
@@ -176,9 +174,8 @@ static int standby_boot_seq(struct platform_device *pdev)
apb->state == ARCHE_PLATFORM_STATE_OFF)
return 0;
- if (apb->state == ARCHE_PLATFORM_STATE_FW_FLASHING &&
- gpio_is_valid(apb->spi_en_gpio))
- devm_gpio_free(dev, apb->spi_en_gpio);
+ if (apb->state == ARCHE_PLATFORM_STATE_FW_FLASHING && apb->spi_en)
+ devm_gpiod_put(dev, apb->spi_en);
/*
* As per WDM spec, do nothing
@@ -201,13 +198,12 @@ static void poweroff_seq(struct platform_device *pdev)
if (apb->init_disabled || apb->state == ARCHE_PLATFORM_STATE_OFF)
return;
- if (apb->state == ARCHE_PLATFORM_STATE_FW_FLASHING &&
- gpio_is_valid(apb->spi_en_gpio))
- devm_gpio_free(dev, apb->spi_en_gpio);
+ if (apb->state == ARCHE_PLATFORM_STATE_FW_FLASHING && apb->spi_en)
+ devm_gpiod_put(dev, apb->spi_en);
/* disable the clock */
- if (gpio_is_valid(apb->clk_en_gpio))
- gpio_set_value(apb->clk_en_gpio, 0);
+ if (apb->clk_en)
+ gpiod_set_value(apb->clk_en, 0);
if (!IS_ERR(apb->vcore) && regulator_is_enabled(apb->vcore) > 0)
regulator_disable(apb->vcore);
@@ -216,7 +212,7 @@ static void poweroff_seq(struct platform_device *pdev)
regulator_disable(apb->vio);
/* As part of exit, put APB back in reset state */
- assert_reset(apb->resetn_gpio);
+ assert_reset(apb->resetn);
apb->state = ARCHE_PLATFORM_STATE_OFF;
/* TODO: May have to send an event to SVC about this exit */
@@ -226,7 +222,7 @@ static void apb_bootret_deassert(struct device *dev)
{
struct arche_apb_ctrl_drvdata *apb = dev_get_drvdata(dev);
- gpio_set_value(apb->boot_ret_gpio, 0);
+ gpiod_set_value(apb->boot_ret, 0);
}
int apb_ctrl_coldboot(struct device *dev)
@@ -322,66 +318,44 @@ static int apb_ctrl_get_devtree_data(struct platform_device *pdev,
struct arche_apb_ctrl_drvdata *apb)
{
struct device *dev = &pdev->dev;
- struct device_node *np = dev->of_node;
int ret;
- apb->resetn_gpio = of_get_named_gpio(np, "reset-gpios", 0);
- if (apb->resetn_gpio < 0) {
- dev_err(dev, "failed to get reset gpio\n");
- return apb->resetn_gpio;
- }
- ret = devm_gpio_request_one(dev, apb->resetn_gpio,
- GPIOF_OUT_INIT_LOW, "apb-reset");
- if (ret) {
- dev_err(dev, "Failed requesting reset gpio %d\n",
- apb->resetn_gpio);
+ apb->resetn = devm_gpiod_get(dev, "reset", GPIOD_OUT_LOW);
+ if (IS_ERR(apb->resetn)) {
+ ret = PTR_ERR(apb->resetn);
+ dev_err(dev, "Failed requesting reset GPIO: %d\n", ret);
return ret;
}
- apb->boot_ret_gpio = of_get_named_gpio(np, "boot-ret-gpios", 0);
- if (apb->boot_ret_gpio < 0) {
- dev_err(dev, "failed to get boot retention gpio\n");
- return apb->boot_ret_gpio;
- }
- ret = devm_gpio_request_one(dev, apb->boot_ret_gpio,
- GPIOF_OUT_INIT_LOW, "boot retention");
- if (ret) {
- dev_err(dev, "Failed requesting bootret gpio %d\n",
- apb->boot_ret_gpio);
+ apb->boot_ret = devm_gpiod_get(dev, "boot-ret", GPIOD_OUT_LOW);
+ if (IS_ERR(apb->boot_ret)) {
+ ret = PTR_ERR(apb->boot_ret);
+ dev_err(dev, "Failed requesting bootret GPIO: %d\n", ret);
return ret;
}
/* It's not mandatory to support power management interface */
- apb->pwroff_gpio = of_get_named_gpio(np, "pwr-off-gpios", 0);
- if (apb->pwroff_gpio < 0) {
- dev_err(dev, "failed to get power off gpio\n");
- return apb->pwroff_gpio;
- }
- ret = devm_gpio_request_one(dev, apb->pwroff_gpio,
- GPIOF_IN, "pwroff_n");
- if (ret) {
- dev_err(dev, "Failed requesting pwroff_n gpio %d\n",
- apb->pwroff_gpio);
+ apb->pwroff = devm_gpiod_get_optional(dev, "pwr-off", GPIOD_IN);
+ if (IS_ERR(apb->pwroff)) {
+ ret = PTR_ERR(apb->pwroff);
+ dev_err(dev, "Failed requesting pwroff_n GPIO: %d\n", ret);
return ret;
}
/* Do not make clock mandatory as of now (for DB3) */
- apb->clk_en_gpio = of_get_named_gpio(np, "clock-en-gpio", 0);
- if (apb->clk_en_gpio < 0) {
- dev_warn(dev, "failed to get clock en gpio\n");
- } else if (gpio_is_valid(apb->clk_en_gpio)) {
- ret = devm_gpio_request_one(dev, apb->clk_en_gpio,
- GPIOF_OUT_INIT_LOW, "apb_clk_en");
- if (ret) {
- dev_warn(dev, "Failed requesting APB clock en gpio %d\n",
- apb->clk_en_gpio);
- return ret;
- }
+ apb->clk_en = devm_gpiod_get_optional(dev, "clock-en", GPIOD_OUT_LOW);
+ if (IS_ERR(apb->clk_en)) {
+ ret = PTR_ERR(apb->clk_en);
+ dev_err(dev, "Failed requesting APB clock en GPIO: %d\n", ret);
+ return ret;
}
- apb->pwrdn_gpio = of_get_named_gpio(np, "pwr-down-gpios", 0);
- if (apb->pwrdn_gpio < 0)
- dev_warn(dev, "failed to get power down gpio\n");
+ apb->pwrdn = devm_gpiod_get(dev, "pwr-down", GPIOD_OUT_LOW);
+ if (IS_ERR(apb->pwrdn)) {
+ ret = PTR_ERR(apb->pwrdn);
+ dev_warn(dev, "Failed requesting power down GPIO: %d\n", ret);
+ return ret;
+ }
/* Regulators are optional, as we may have fixed supply coming in */
apb->vcore = devm_regulator_get(dev, "vcore");
@@ -404,12 +378,8 @@ static int apb_ctrl_get_devtree_data(struct platform_device *pdev,
}
/* Only applicable for platform >= V2 */
- apb->spi_en_gpio = of_get_named_gpio(np, "spi-en-gpio", 0);
- if (apb->spi_en_gpio >= 0) {
- if (of_property_read_bool(pdev->dev.of_node,
- "spi-en-active-high"))
- apb->spi_en_polarity_high = true;
- }
+ if (of_property_read_bool(pdev->dev.of_node, "gb,spi-en-active-high"))
+ apb->spi_en_polarity_high = true;
return 0;
}
--
2.17.1
^ permalink raw reply related [flat|nested] 5+ messages in thread
* [PATCH v6 2/2] staging: greybus: arche-platform: Switch to the gpio descriptor interface
2019-01-11 15:33 [PATCH v6 0/2] greybus: gpio: Switch to the gpio descriptor interface Nishad Kamdar
2019-01-11 15:38 ` [PATCH v6 1/2] staging: greybus: arche-apb-ctrl.c: " Nishad Kamdar
@ 2019-01-11 15:40 ` Nishad Kamdar
2019-01-14 9:05 ` [PATCH v6 0/2] greybus: gpio: " Johan Hovold
2 siblings, 0 replies; 5+ messages in thread
From: Nishad Kamdar @ 2019-01-11 15:40 UTC (permalink / raw)
To: Johan Hovold
Cc: Greg Kroah-Hartman, Alex Elder, Rui Miguel Silva, greybus-dev,
devel, linux-kernel, Nishad Kamdar
Use the gpiod interface instead of the deprecated old non-descriptor
interface while continuing to ignore gpio flags from device tree in
"svc_reset_onoff()" for now.
Reviewed-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Nishad Kamdar <nishadkamdar@gmail.com>
---
Changes in v6:
- Make error messages consistent.
Changes in v5:
- Change the commit message.
- Restore the names of the gpio device-tree properties without
the "-gpio" suffix.
Changes in v4:
- Move 'gpio_desc *svc_sysboot' below the reset flag
as it is more logical to have reset flag below
reset gpio.
- Remove a few unnecessary line breaks.
Changes in v3:
- Add this patch to a patchset.
Changes in v2:
- Move comment to the same line as to what it applies to.
---
drivers/staging/greybus/arche-platform.c | 124 ++++++++---------------
1 file changed, 41 insertions(+), 83 deletions(-)
diff --git a/drivers/staging/greybus/arche-platform.c b/drivers/staging/greybus/arche-platform.c
index 4c36e88766e7..6eb842040c22 100644
--- a/drivers/staging/greybus/arche-platform.c
+++ b/drivers/staging/greybus/arche-platform.c
@@ -8,10 +8,9 @@
#include <linux/clk.h>
#include <linux/delay.h>
-#include <linux/gpio.h>
+#include <linux/gpio/consumer.h>
#include <linux/init.h>
#include <linux/module.h>
-#include <linux/of_gpio.h>
#include <linux/of_platform.h>
#include <linux/pinctrl/consumer.h>
#include <linux/platform_device.h>
@@ -45,14 +44,14 @@ enum svc_wakedetect_state {
struct arche_platform_drvdata {
/* Control GPIO signals to and from AP <=> SVC */
- int svc_reset_gpio;
+ struct gpio_desc *svc_reset;
bool is_reset_act_hi;
- int svc_sysboot_gpio;
- int wake_detect_gpio; /* bi-dir,maps to WAKE_MOD & WAKE_FRAME signals */
+ struct gpio_desc *svc_sysboot;
+ struct gpio_desc *wake_detect; /* bi-dir,maps to WAKE_MOD & WAKE_FRAME signals */
enum arche_platform_state state;
- int svc_refclk_req;
+ struct gpio_desc *svc_refclk_req;
struct clk *svc_ref_clk;
struct pinctrl *pinctrl;
@@ -85,9 +84,9 @@ static void arche_platform_set_wake_detect_state(
arche_pdata->wake_detect_state = state;
}
-static inline void svc_reset_onoff(unsigned int gpio, bool onoff)
+static inline void svc_reset_onoff(struct gpio_desc *gpio, bool onoff)
{
- gpio_set_value(gpio, onoff);
+ gpiod_set_raw_value(gpio, onoff);
}
static int apb_cold_boot(struct device *dev, void *data)
@@ -116,7 +115,6 @@ static int apb_poweroff(struct device *dev, void *data)
static void arche_platform_wd_irq_en(struct arche_platform_drvdata *arche_pdata)
{
/* Enable interrupt here, to read event back from SVC */
- gpio_direction_input(arche_pdata->wake_detect_gpio);
enable_irq(arche_pdata->wake_detect_irq);
}
@@ -160,7 +158,7 @@ static irqreturn_t arche_platform_wd_irq(int irq, void *devid)
spin_lock_irqsave(&arche_pdata->wake_lock, flags);
- if (gpio_get_value(arche_pdata->wake_detect_gpio)) {
+ if (gpiod_get_value(arche_pdata->wake_detect)) {
/* wake/detect rising */
/*
@@ -224,10 +222,9 @@ arche_platform_coldboot_seq(struct arche_platform_drvdata *arche_pdata)
dev_info(arche_pdata->dev, "Booting from cold boot state\n");
- svc_reset_onoff(arche_pdata->svc_reset_gpio,
- arche_pdata->is_reset_act_hi);
+ svc_reset_onoff(arche_pdata->svc_reset, arche_pdata->is_reset_act_hi);
- gpio_set_value(arche_pdata->svc_sysboot_gpio, 0);
+ gpiod_set_value(arche_pdata->svc_sysboot, 0);
usleep_range(100, 200);
ret = clk_prepare_enable(arche_pdata->svc_ref_clk);
@@ -238,8 +235,7 @@ arche_platform_coldboot_seq(struct arche_platform_drvdata *arche_pdata)
}
/* bring SVC out of reset */
- svc_reset_onoff(arche_pdata->svc_reset_gpio,
- !arche_pdata->is_reset_act_hi);
+ svc_reset_onoff(arche_pdata->svc_reset, !arche_pdata->is_reset_act_hi);
arche_platform_set_state(arche_pdata, ARCHE_PLATFORM_STATE_ACTIVE);
@@ -259,10 +255,9 @@ arche_platform_fw_flashing_seq(struct arche_platform_drvdata *arche_pdata)
dev_info(arche_pdata->dev, "Switching to FW flashing state\n");
- svc_reset_onoff(arche_pdata->svc_reset_gpio,
- arche_pdata->is_reset_act_hi);
+ svc_reset_onoff(arche_pdata->svc_reset, arche_pdata->is_reset_act_hi);
- gpio_set_value(arche_pdata->svc_sysboot_gpio, 1);
+ gpiod_set_value(arche_pdata->svc_sysboot, 1);
usleep_range(100, 200);
@@ -273,8 +268,7 @@ arche_platform_fw_flashing_seq(struct arche_platform_drvdata *arche_pdata)
return ret;
}
- svc_reset_onoff(arche_pdata->svc_reset_gpio,
- !arche_pdata->is_reset_act_hi);
+ svc_reset_onoff(arche_pdata->svc_reset, !arche_pdata->is_reset_act_hi);
arche_platform_set_state(arche_pdata, ARCHE_PLATFORM_STATE_FW_FLASHING);
@@ -305,8 +299,7 @@ arche_platform_poweroff_seq(struct arche_platform_drvdata *arche_pdata)
clk_disable_unprepare(arche_pdata->svc_ref_clk);
/* As part of exit, put APB back in reset state */
- svc_reset_onoff(arche_pdata->svc_reset_gpio,
- arche_pdata->is_reset_act_hi);
+ svc_reset_onoff(arche_pdata->svc_reset, arche_pdata->is_reset_act_hi);
arche_platform_set_state(arche_pdata, ARCHE_PLATFORM_STATE_OFF);
}
@@ -435,6 +428,7 @@ static int arche_platform_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
struct device_node *np = dev->of_node;
int ret;
+ unsigned int flags;
arche_pdata = devm_kzalloc(&pdev->dev, sizeof(*arche_pdata),
GFP_KERNEL);
@@ -444,61 +438,33 @@ static int arche_platform_probe(struct platform_device *pdev)
/* setup svc reset gpio */
arche_pdata->is_reset_act_hi = of_property_read_bool(np,
"svc,reset-active-high");
- arche_pdata->svc_reset_gpio = of_get_named_gpio(np,
- "svc,reset-gpio",
- 0);
- if (!gpio_is_valid(arche_pdata->svc_reset_gpio)) {
- dev_err(dev, "failed to get reset-gpio\n");
- return arche_pdata->svc_reset_gpio;
- }
- ret = devm_gpio_request(dev, arche_pdata->svc_reset_gpio, "svc-reset");
- if (ret) {
- dev_err(dev, "failed to request svc-reset gpio:%d\n", ret);
- return ret;
- }
- ret = gpio_direction_output(arche_pdata->svc_reset_gpio,
- arche_pdata->is_reset_act_hi);
- if (ret) {
- dev_err(dev, "failed to set svc-reset gpio dir:%d\n", ret);
+ if (arche_pdata->is_reset_act_hi)
+ flags = GPIOD_OUT_HIGH;
+ else
+ flags = GPIOD_OUT_LOW;
+
+ arche_pdata->svc_reset = devm_gpiod_get(dev, "svc,reset", flags);
+ if (IS_ERR(arche_pdata->svc_reset)) {
+ ret = PTR_ERR(arche_pdata->svc_reset);
+ dev_err(dev, "failed to request svc-reset GPIO: %d\n", ret);
return ret;
}
arche_platform_set_state(arche_pdata, ARCHE_PLATFORM_STATE_OFF);
- arche_pdata->svc_sysboot_gpio = of_get_named_gpio(np,
- "svc,sysboot-gpio",
- 0);
- if (!gpio_is_valid(arche_pdata->svc_sysboot_gpio)) {
- dev_err(dev, "failed to get sysboot gpio\n");
- return arche_pdata->svc_sysboot_gpio;
- }
- ret = devm_gpio_request(dev, arche_pdata->svc_sysboot_gpio, "sysboot0");
- if (ret) {
- dev_err(dev, "failed to request sysboot0 gpio:%d\n", ret);
- return ret;
- }
- ret = gpio_direction_output(arche_pdata->svc_sysboot_gpio, 0);
- if (ret) {
- dev_err(dev, "failed to set svc-reset gpio dir:%d\n", ret);
+ arche_pdata->svc_sysboot = devm_gpiod_get(dev, "svc,sysboot",
+ GPIOD_OUT_LOW);
+ if (IS_ERR(arche_pdata->svc_sysboot)) {
+ ret = PTR_ERR(arche_pdata->svc_sysboot);
+ dev_err(dev, "failed to request sysboot0 GPIO: %d\n", ret);
return ret;
}
/* setup the clock request gpio first */
- arche_pdata->svc_refclk_req = of_get_named_gpio(np,
- "svc,refclk-req-gpio",
- 0);
- if (!gpio_is_valid(arche_pdata->svc_refclk_req)) {
- dev_err(dev, "failed to get svc clock-req gpio\n");
- return arche_pdata->svc_refclk_req;
- }
- ret = devm_gpio_request(dev, arche_pdata->svc_refclk_req,
- "svc-clk-req");
- if (ret) {
- dev_err(dev, "failed to request svc-clk-req gpio: %d\n", ret);
- return ret;
- }
- ret = gpio_direction_input(arche_pdata->svc_refclk_req);
- if (ret) {
- dev_err(dev, "failed to set svc-clk-req gpio dir :%d\n", ret);
+ arche_pdata->svc_refclk_req = devm_gpiod_get(dev, "svc,refclk-req",
+ GPIOD_IN);
+ if (IS_ERR(arche_pdata->svc_refclk_req)) {
+ ret = PTR_ERR(arche_pdata->svc_refclk_req);
+ dev_err(dev, "failed to request svc-clk-req GPIO: %d\n", ret);
return ret;
}
@@ -515,19 +481,11 @@ static int arche_platform_probe(struct platform_device *pdev)
arche_pdata->num_apbs = of_get_child_count(np);
dev_dbg(dev, "Number of APB's available - %d\n", arche_pdata->num_apbs);
- arche_pdata->wake_detect_gpio = of_get_named_gpio(np,
- "svc,wake-detect-gpio",
- 0);
- if (arche_pdata->wake_detect_gpio < 0) {
- dev_err(dev, "failed to get wake detect gpio\n");
- return arche_pdata->wake_detect_gpio;
- }
-
- ret = devm_gpio_request(dev, arche_pdata->wake_detect_gpio,
- "wake detect");
- if (ret) {
- dev_err(dev, "Failed requesting wake_detect gpio %d\n",
- arche_pdata->wake_detect_gpio);
+ arche_pdata->wake_detect = devm_gpiod_get(dev, "svc,wake-detect",
+ GPIOD_IN);
+ if (IS_ERR(arche_pdata->wake_detect)) {
+ ret = PTR_ERR(arche_pdata->wake_detect);
+ dev_err(dev, "Failed requesting wake_detect GPIO: %d\n", ret);
return ret;
}
@@ -538,7 +496,7 @@ static int arche_platform_probe(struct platform_device *pdev)
spin_lock_init(&arche_pdata->wake_lock);
mutex_init(&arche_pdata->platform_state_mutex);
arche_pdata->wake_detect_irq =
- gpio_to_irq(arche_pdata->wake_detect_gpio);
+ gpiod_to_irq(arche_pdata->wake_detect);
ret = devm_request_threaded_irq(dev, arche_pdata->wake_detect_irq,
arche_platform_wd_irq,
--
2.17.1
^ permalink raw reply related [flat|nested] 5+ messages in thread