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| author | Baolin Wang <baolin.wang@linaro.org> | 2019-09-27 16:27:41 +0800 |
|---|---|---|
| committer | Bjorn Andersson <bjorn.andersson@linaro.org> | 2019-10-04 20:20:18 -0700 |
| commit | 5ee45e0c894636243361fdbaa17828fa00dc7f3a (patch) | |
| tree | d72ccef77001bef55984667122ba6085ebefe0ae /drivers/hwspinlock | |
| parent | eecff9a8427a391911accfd077368baeda45c540 (diff) | |
| download | lwn-5ee45e0c894636243361fdbaa17828fa00dc7f3a.tar.gz lwn-5ee45e0c894636243361fdbaa17828fa00dc7f3a.zip | |
hwspinlock: u8500_hsem: Change to use devm_platform_ioremap_resource()
Use the new helper that wraps the calls to platform_get_resource()
and devm_ioremap_resource() together, which can simpify the code.
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Baolin Wang <baolin.wang@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Diffstat (limited to 'drivers/hwspinlock')
| -rw-r--r-- | drivers/hwspinlock/u8500_hsem.c | 20 |
1 files changed, 5 insertions, 15 deletions
diff --git a/drivers/hwspinlock/u8500_hsem.c b/drivers/hwspinlock/u8500_hsem.c index 572ca79d77e8..c247a87fd0b6 100644 --- a/drivers/hwspinlock/u8500_hsem.c +++ b/drivers/hwspinlock/u8500_hsem.c @@ -88,7 +88,6 @@ static int u8500_hsem_probe(struct platform_device *pdev) struct hwspinlock_pdata *pdata = pdev->dev.platform_data; struct hwspinlock_device *bank; struct hwspinlock *hwlock; - struct resource *res; void __iomem *io_base; int i, ret, num_locks = U8500_MAX_SEMAPHORE; ulong val; @@ -96,13 +95,9 @@ static int u8500_hsem_probe(struct platform_device *pdev) if (!pdata) return -ENODEV; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) - return -ENODEV; - - io_base = ioremap(res->start, resource_size(res)); - if (!io_base) - return -ENOMEM; + io_base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(io_base)) + return PTR_ERR(io_base); /* make sure protocol 1 is selected */ val = readl(io_base + HSEM_CTRL_REG); @@ -112,10 +107,8 @@ static int u8500_hsem_probe(struct platform_device *pdev) writel(0xFFFF, io_base + HSEM_ICRALL); bank = kzalloc(struct_size(bank, lock, num_locks), GFP_KERNEL); - if (!bank) { - ret = -ENOMEM; - goto iounmap_base; - } + if (!bank) + return -ENOMEM; platform_set_drvdata(pdev, bank); @@ -135,8 +128,6 @@ static int u8500_hsem_probe(struct platform_device *pdev) reg_fail: pm_runtime_disable(&pdev->dev); kfree(bank); -iounmap_base: - iounmap(io_base); return ret; } @@ -156,7 +147,6 @@ static int u8500_hsem_remove(struct platform_device *pdev) } pm_runtime_disable(&pdev->dev); - iounmap(io_base); kfree(bank); return 0; |