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HSI: omap_ssi_port: switch to gpiod API

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Simplify driver by switching to new gpio descriptor based API.

Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Sebastian Reichel <sre@kernel.org>
This commit is contained in:
Sebastian Reichel 2016-04-30 00:04:29 +02:00
parent c3b46c7326
commit 73e6ce09c0
3 changed files with 12 additions and 24 deletions
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1
drivers/hsi/controllers/omap_ssi.c
View File

@ -24,7 +24,6 @@
#include <linux/err.h>
#include <linux/ioport.h>
#include <linux/io.h>
#include <linux/gpio.h>
#include <linux/clk.h>
#include <linux/device.h>
#include <linux/platform_device.h>

4
drivers/hsi/controllers/omap_ssi.h
View File

@ -27,7 +27,7 @@
#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/hsi/hsi.h>
#include <linux/gpio.h>
#include <linux/gpio/consumer.h>
#include <linux/interrupt.h>
#include <linux/io.h>
@ -97,7 +97,7 @@ struct omap_ssi_port {
struct list_head brkqueue;
unsigned int irq;
int wake_irq;
int wake_gpio;
struct gpio_desc *wake_gpio;
struct tasklet_struct pio_tasklet;
struct tasklet_struct wake_tasklet;
bool wktest:1; /* FIXME: HACK to be removed */

31
drivers/hsi/controllers/omap_ssi_port.c
View File

@ -24,7 +24,7 @@
#include <linux/dma-mapping.h>
#include <linux/pm_runtime.h>
#include <linux/of_gpio.h>
#include <linux/gpio/consumer.h>
#include <linux/debugfs.h>
#include "omap_ssi_regs.h"
@ -43,7 +43,7 @@ static inline int hsi_dummy_cl(struct hsi_client *cl __maybe_unused)
static inline unsigned int ssi_wakein(struct hsi_port *port)
{
struct omap_ssi_port *omap_port = hsi_port_drvdata(port);
return gpio_get_value(omap_port->wake_gpio);
return gpiod_get_value(omap_port->wake_gpio);
}
#ifdef CONFIG_DEBUG_FS
@ -1036,12 +1036,12 @@ static int __init ssi_wake_irq(struct hsi_port *port,
int cawake_irq;
int err;
if (omap_port->wake_gpio == -1) {
if (!omap_port->wake_gpio) {
omap_port->wake_irq = -1;
return 0;
}
cawake_irq = gpio_to_irq(omap_port->wake_gpio);
cawake_irq = gpiod_to_irq(omap_port->wake_gpio);
omap_port->wake_irq = cawake_irq;
tasklet_init(&omap_port->wake_tasklet, ssi_wake_tasklet,
@ -1111,7 +1111,7 @@ static int __init ssi_port_probe(struct platform_device *pd)
struct omap_ssi_port *omap_port;
struct hsi_controller *ssi = dev_get_drvdata(pd->dev.parent);
struct omap_ssi_controller *omap_ssi = hsi_controller_drvdata(ssi);
int cawake_gpio = 0;
struct gpio_desc *cawake_gpio = NULL;
u32 port_id;
int err;
@ -1147,20 +1147,10 @@ static int __init ssi_port_probe(struct platform_device *pd)
goto error;
}
err = of_get_named_gpio(np, "ti,ssi-cawake-gpio", 0);
if (err < 0) {
dev_err(&pd->dev, "DT data is missing cawake gpio (err=%d)\n",
err);
goto error;
}
cawake_gpio = err;
err = devm_gpio_request_one(&port->device, cawake_gpio, GPIOF_DIR_IN,
"cawake");
if (err) {
dev_err(&pd->dev, "could not request cawake gpio (err=%d)!\n",
err);
err = -ENXIO;
cawake_gpio = devm_gpiod_get(&pd->dev, "ti,ssi-cawake", GPIOD_IN);
if (IS_ERR(cawake_gpio)) {
err = PTR_ERR(cawake_gpio);
dev_err(&pd->dev, "couldn't get cawake gpio (err=%d)!\n", err);
goto error;
}
@ -1219,8 +1209,7 @@ static int __init ssi_port_probe(struct platform_device *pd)
hsi_add_clients_from_dt(port, np);
dev_info(&pd->dev, "ssi port %u successfully initialized (cawake=%d)\n",
port_id, cawake_gpio);
dev_info(&pd->dev, "ssi port %u successfully initialized\n", port_id);
return 0;