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authorBaolin Wang <baolin.wang@linaro.org>2019-10-14 10:07:46 +0300
committerBjorn Andersson <bjorn.andersson@linaro.org>2019-11-09 03:42:26 +0300
commit9d399f0c52951c1acf972bf98ea55ba8798fea7a (patch)
treee6124b65af2aee4f9a7611d1e4a98950521548ce /drivers/hwspinlock
parent4d0c1c57329ac2db987160aa55ffdca479181dbe (diff)
downloadlinux-9d399f0c52951c1acf972bf98ea55ba8798fea7a.tar.xz
hwspinlock: u8500_hsem: Remove redundant PM runtime implementation
Since the hwspinlock core has changed the PM runtime to be optional, thus remove the redundant PM runtime implementation in the u8500 HWSEM driver. 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.c19
1 files changed, 4 insertions, 15 deletions
diff --git a/drivers/hwspinlock/u8500_hsem.c b/drivers/hwspinlock/u8500_hsem.c
index b31141a9b927..67845c0c9701 100644
--- a/drivers/hwspinlock/u8500_hsem.c
+++ b/drivers/hwspinlock/u8500_hsem.c
@@ -16,7 +16,6 @@
#include <linux/module.h>
#include <linux/delay.h>
#include <linux/io.h>
-#include <linux/pm_runtime.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/hwspinlock.h>
@@ -89,7 +88,7 @@ static int u8500_hsem_probe(struct platform_device *pdev)
struct hwspinlock_device *bank;
struct hwspinlock *hwlock;
void __iomem *io_base;
- int i, ret, num_locks = U8500_MAX_SEMAPHORE;
+ int i, num_locks = U8500_MAX_SEMAPHORE;
ulong val;
if (!pdata)
@@ -116,17 +115,9 @@ static int u8500_hsem_probe(struct platform_device *pdev)
for (i = 0, hwlock = &bank->lock[0]; i < num_locks; i++, hwlock++)
hwlock->priv = io_base + HSEM_REGISTER_OFFSET + sizeof(u32) * i;
- /* no pm needed for HSem but required to comply with hwspilock core */
- pm_runtime_enable(&pdev->dev);
-
- ret = devm_hwspin_lock_register(&pdev->dev, bank, &u8500_hwspinlock_ops,
- pdata->base_id, num_locks);
- if (ret) {
- pm_runtime_disable(&pdev->dev);
- return ret;
- }
-
- return 0;
+ return devm_hwspin_lock_register(&pdev->dev, bank,
+ &u8500_hwspinlock_ops,
+ pdata->base_id, num_locks);
}
static int u8500_hsem_remove(struct platform_device *pdev)
@@ -137,8 +128,6 @@ static int u8500_hsem_remove(struct platform_device *pdev)
/* clear all interrupts */
writel(0xFFFF, io_base + HSEM_ICRALL);
- pm_runtime_disable(&pdev->dev);
-
return 0;
}