[RFC PATCH v2 06/13] hwspinlock: stm32: use new callback to initialize hwspinlock priv

[Wolfram Sang]

Apply the new helper to avoid using internal structures from the core.

Signed-off-by: Wolfram Sang <wsa+renesas at sang-engineering.com>
---
 drivers/hwspinlock/stm32_hwspinlock.c | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/drivers/hwspinlock/stm32_hwspinlock.c b/drivers/hwspinlock/stm32_hwspinlock.c
index 1d75dc03f4ad..02db950c9450 100644
--- a/drivers/hwspinlock/stm32_hwspinlock.c
+++ b/drivers/hwspinlock/stm32_hwspinlock.c
@@ -48,10 +48,18 @@ static void stm32_hwspinlock_relax(struct hwspinlock *lock)
 	ndelay(50);
 }
 
+static void *stm32_hwspinlock_init_priv(int local_id, void *init_data)
+{
+	void __iomem *io_base = init_data;
+
+	return io_base + local_id * sizeof(u32);
+}
+
 static const struct hwspinlock_ops stm32_hwspinlock_ops = {
 	.trylock	= stm32_hwspinlock_trylock,
 	.unlock		= stm32_hwspinlock_unlock,
 	.relax		= stm32_hwspinlock_relax,
+	.init_priv	= stm32_hwspinlock_init_priv,
 };
 
 static void stm32_hwspinlock_disable_clk(void *data)
@@ -73,7 +81,7 @@ static int stm32_hwspinlock_probe(struct platform_device *pdev)
 	struct device *dev = &pdev->dev;
 	struct stm32_hwspinlock *hw;
 	void __iomem *io_base;
-	int i, ret;
+	int ret;
 
 	io_base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(io_base))
@@ -106,11 +114,8 @@ static int stm32_hwspinlock_probe(struct platform_device *pdev)
 		return ret;
 	}
 
-	for (i = 0; i < STM32_MUTEX_NUM_LOCKS; i++)
-		hw->bank.lock[i].priv = io_base + i * sizeof(u32);
-
 	ret = devm_hwspin_lock_register(dev, &hw->bank, &stm32_hwspinlock_ops,
-					0, STM32_MUTEX_NUM_LOCKS);
+					0, STM32_MUTEX_NUM_LOCKS, io_base);
 
 	if (ret)
 		dev_err(dev, "Failed to register hwspinlock\n");
-- 
2.51.0