[PATCH v3 08/15] 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+rene...@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 51e8e533ac31..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, NULL);
+                                       0, STM32_MUTEX_NUM_LOCKS, io_base);
 
        if (ret)
                dev_err(dev, "Failed to register hwspinlock\n");
-- 
2.51.0