diff mbox series

[v5,01/24] i2c: designware: Fix PM calls order in dw_i2c_plat_probe()

Message ID 20231207141653.2785124-2-andriy.shevchenko@linux.intel.com
State New
Headers show
Series i2c: designware: code consolidation & cleanups | expand

Commit Message

Andy Shevchenko Dec. 7, 2023, 2:13 p.m. UTC 
We should not mix managed calls with non-managed. This will break
the calls order at the error path and ->remove() stages. Fix this
by wrapping PM ops to become managed one.

Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Tested-by: Serge Semin <fancer.lancer@gmail.com>
Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
Link: https://lore.kernel.org/r/20231120144641.1660574-2-andriy.shevchenko@linux.intel.com
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/i2c/busses/i2c-designware-platdrv.c | 26 ++++++++++++++-------
 1 file changed, 17 insertions(+), 9 deletions(-)
diff mbox series

Patch

diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c
index 855b698e99c0..fd3cd65f9c88 100644
--- a/drivers/i2c/busses/i2c-designware-platdrv.c
+++ b/drivers/i2c/busses/i2c-designware-platdrv.c
@@ -177,14 +177,26 @@  static int txgbe_i2c_request_regs(struct dw_i2c_dev *dev)
 	return 0;
 }
 
-static void dw_i2c_plat_pm_cleanup(struct dw_i2c_dev *dev)
+static void dw_i2c_plat_pm_cleanup(void *data)
 {
+	struct dw_i2c_dev *dev = data;
+
 	pm_runtime_disable(dev->dev);
 
 	if (dev->shared_with_punit)
 		pm_runtime_put_noidle(dev->dev);
 }
 
+static int dw_i2c_plat_pm_setup(struct dw_i2c_dev *dev)
+{
+	if (dev->shared_with_punit)
+		pm_runtime_get_noresume(dev->dev);
+
+	pm_runtime_enable(dev->dev);
+
+	return devm_add_action_or_reset(dev->dev, dw_i2c_plat_pm_cleanup, dev);
+}
+
 static int dw_i2c_plat_request_regs(struct dw_i2c_dev *dev)
 {
 	struct platform_device *pdev = to_platform_device(dev->dev);
@@ -381,19 +393,16 @@  static int dw_i2c_plat_probe(struct platform_device *pdev)
 	pm_runtime_use_autosuspend(&pdev->dev);
 	pm_runtime_set_active(&pdev->dev);
 
-	if (dev->shared_with_punit)
-		pm_runtime_get_noresume(&pdev->dev);
-
-	pm_runtime_enable(&pdev->dev);
+	ret = dw_i2c_plat_pm_setup(dev);
+	if (ret)
+		goto exit_reset;
 
 	ret = i2c_dw_probe(dev);
 	if (ret)
-		goto exit_probe;
+		goto exit_reset;
 
 	return ret;
 
-exit_probe:
-	dw_i2c_plat_pm_cleanup(dev);
 exit_reset:
 	reset_control_assert(dev->rst);
 	return ret;
@@ -411,7 +420,6 @@  static void dw_i2c_plat_remove(struct platform_device *pdev)
 
 	pm_runtime_dont_use_autosuspend(&pdev->dev);
 	pm_runtime_put_sync(&pdev->dev);
-	dw_i2c_plat_pm_cleanup(dev);
 
 	i2c_dw_remove_lock_support(dev);