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path: root/drivers/sh/pfc/pinctrl.c
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Diffstat (limited to 'drivers/sh/pfc/pinctrl.c')
-rw-r--r--drivers/sh/pfc/pinctrl.c100
1 files changed, 25 insertions, 75 deletions
diff --git a/drivers/sh/pfc/pinctrl.c b/drivers/sh/pfc/pinctrl.c
index 6f0f58bd3f87..2fc873137ce8 100644
--- a/drivers/sh/pfc/pinctrl.c
+++ b/drivers/sh/pfc/pinctrl.c
@@ -7,8 +7,8 @@
* License. See the file "COPYING" in the main directory of this archive
* for more details.
*/
-#define DRV_NAME "pinctrl-sh_pfc"
+#define DRV_NAME "sh-pfc"
#define pr_fmt(fmt) KBUILD_MODNAME " pinctrl: " fmt
#include <linux/init.h>
@@ -17,7 +17,6 @@
#include <linux/err.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
-#include <linux/platform_device.h>
#include <linux/pinctrl/consumer.h>
#include <linux/pinctrl/pinctrl.h>
#include <linux/pinctrl/pinconf.h>
@@ -39,8 +38,6 @@ struct sh_pfc_pinctrl {
spinlock_t lock;
};
-static struct sh_pfc_pinctrl *sh_pfc_pmx;
-
static int sh_pfc_get_groups_count(struct pinctrl_dev *pctldev)
{
struct sh_pfc_pinctrl *pmx = pinctrl_dev_get_drvdata(pctldev);
@@ -421,28 +418,31 @@ static int sh_pfc_map_functions(struct sh_pfc *pfc, struct sh_pfc_pinctrl *pmx)
return 0;
}
-static int sh_pfc_pinctrl_probe(struct platform_device *pdev)
+int sh_pfc_register_pinctrl(struct sh_pfc *pfc)
{
- struct sh_pfc *pfc;
+ struct sh_pfc_pinctrl *pmx;
int ret;
- if (unlikely(!sh_pfc_pmx))
- return -ENODEV;
+ pmx = kzalloc(sizeof(struct sh_pfc_pinctrl), GFP_KERNEL);
+ if (unlikely(!pmx))
+ return -ENOMEM;
+
+ spin_lock_init(&pmx->lock);
- pfc = sh_pfc_pmx->pfc;
+ pmx->pfc = pfc;
+ pfc->pinctrl = pmx;
- ret = sh_pfc_map_gpios(pfc, sh_pfc_pmx);
+ ret = sh_pfc_map_gpios(pfc, pmx);
if (unlikely(ret != 0))
return ret;
- ret = sh_pfc_map_functions(pfc, sh_pfc_pmx);
+ ret = sh_pfc_map_functions(pfc, pmx);
if (unlikely(ret != 0))
goto free_pads;
- sh_pfc_pmx->pctl = pinctrl_register(&sh_pfc_pinctrl_desc, &pdev->dev,
- sh_pfc_pmx);
- if (IS_ERR(sh_pfc_pmx->pctl)) {
- ret = PTR_ERR(sh_pfc_pmx->pctl);
+ pmx->pctl = pinctrl_register(&sh_pfc_pinctrl_desc, pfc->dev, pmx);
+ if (IS_ERR(pmx->pctl)) {
+ ret = PTR_ERR(pmx->pctl);
goto free_functions;
}
@@ -451,79 +451,29 @@ static int sh_pfc_pinctrl_probe(struct platform_device *pdev)
sh_pfc_gpio_range.base = pfc->pdata->first_gpio;
sh_pfc_gpio_range.pin_base = pfc->pdata->first_gpio;
- pinctrl_add_gpio_range(sh_pfc_pmx->pctl, &sh_pfc_gpio_range);
-
- platform_set_drvdata(pdev, sh_pfc_pmx);
+ pinctrl_add_gpio_range(pmx->pctl, &sh_pfc_gpio_range);
return 0;
free_functions:
- kfree(sh_pfc_pmx->functions);
+ kfree(pmx->functions);
free_pads:
- kfree(sh_pfc_pmx->pads);
- kfree(sh_pfc_pmx);
+ kfree(pmx->pads);
+ kfree(pmx);
return ret;
}
-static int sh_pfc_pinctrl_remove(struct platform_device *pdev)
+int sh_pfc_unregister_pinctrl(struct sh_pfc *pfc)
{
- struct sh_pfc_pinctrl *pmx = platform_get_drvdata(pdev);
+ struct sh_pfc_pinctrl *pmx = pfc->pinctrl;
pinctrl_unregister(pmx->pctl);
- platform_set_drvdata(pdev, NULL);
-
- kfree(sh_pfc_pmx->functions);
- kfree(sh_pfc_pmx->pads);
- kfree(sh_pfc_pmx);
+ kfree(pmx->functions);
+ kfree(pmx->pads);
+ kfree(pmx);
+ pfc->pinctrl = NULL;
return 0;
}
-
-static struct platform_driver sh_pfc_pinctrl_driver = {
- .probe = sh_pfc_pinctrl_probe,
- .remove = sh_pfc_pinctrl_remove,
- .driver = {
- .name = DRV_NAME,
- .owner = THIS_MODULE,
- },
-};
-
-static struct platform_device sh_pfc_pinctrl_device = {
- .name = DRV_NAME,
- .id = -1,
-};
-
-static int sh_pfc_pinctrl_init(void)
-{
- int rc;
-
- rc = platform_driver_register(&sh_pfc_pinctrl_driver);
- if (likely(!rc)) {
- rc = platform_device_register(&sh_pfc_pinctrl_device);
- if (unlikely(rc))
- platform_driver_unregister(&sh_pfc_pinctrl_driver);
- }
-
- return rc;
-}
-
-int sh_pfc_register_pinctrl(struct sh_pfc *pfc)
-{
- sh_pfc_pmx = kzalloc(sizeof(struct sh_pfc_pinctrl), GFP_KERNEL);
- if (unlikely(!sh_pfc_pmx))
- return -ENOMEM;
-
- spin_lock_init(&sh_pfc_pmx->lock);
-
- sh_pfc_pmx->pfc = pfc;
-
- return sh_pfc_pinctrl_init();
-}
-
-static void __exit sh_pfc_pinctrl_exit(void)
-{
- platform_driver_unregister(&sh_pfc_pinctrl_driver);
-}
-module_exit(sh_pfc_pinctrl_exit);