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Subject[PATCH] nvmem: sc27xx: Change to use devm_hwspin_lock_request_specific() to request one hwlock
Date
Change to use devm_hwspin_lock_request_specific() to help to simplify the
cleanup code for drivers requesting one hwlock. Thus we can remove the
redundant sc27xx_efuse_remove() and platform_set_drvdata().

Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
---
drivers/nvmem/sc27xx-efuse.c | 13 +------------
1 file changed, 1 insertion(+), 12 deletions(-)

diff --git a/drivers/nvmem/sc27xx-efuse.c b/drivers/nvmem/sc27xx-efuse.c
index c6ee210..ab5e7e0 100644
--- a/drivers/nvmem/sc27xx-efuse.c
+++ b/drivers/nvmem/sc27xx-efuse.c
@@ -211,7 +211,7 @@ static int sc27xx_efuse_probe(struct platform_device *pdev)
return ret;
}

- efuse->hwlock = hwspin_lock_request_specific(ret);
+ efuse->hwlock = devm_hwspin_lock_request_specific(&pdev->dev, ret);
if (!efuse->hwlock) {
dev_err(&pdev->dev, "failed to request hwspinlock\n");
return -ENXIO;
@@ -219,7 +219,6 @@ static int sc27xx_efuse_probe(struct platform_device *pdev)

mutex_init(&efuse->mutex);
efuse->dev = &pdev->dev;
- platform_set_drvdata(pdev, efuse);

econfig.stride = 1;
econfig.word_size = 1;
@@ -232,21 +231,12 @@ static int sc27xx_efuse_probe(struct platform_device *pdev)
nvmem = devm_nvmem_register(&pdev->dev, &econfig);
if (IS_ERR(nvmem)) {
dev_err(&pdev->dev, "failed to register nvmem config\n");
- hwspin_lock_free(efuse->hwlock);
return PTR_ERR(nvmem);
}

return 0;
}

-static int sc27xx_efuse_remove(struct platform_device *pdev)
-{
- struct sc27xx_efuse *efuse = platform_get_drvdata(pdev);
-
- hwspin_lock_free(efuse->hwlock);
- return 0;
-}
-
static const struct of_device_id sc27xx_efuse_of_match[] = {
{ .compatible = "sprd,sc2731-efuse" },
{ }
@@ -254,7 +244,6 @@ static int sc27xx_efuse_remove(struct platform_device *pdev)

static struct platform_driver sc27xx_efuse_driver = {
.probe = sc27xx_efuse_probe,
- .remove = sc27xx_efuse_remove,
.driver = {
.name = "sc27xx-efuse",
.of_match_table = sc27xx_efuse_of_match,
--
1.7.9.5
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