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Subject[PATCH 1/4] i2c: designware-platdrv: enable RuntimePM before registering to the core
Date
From: Wolfram Sang <wsa+renesas@sang-engineering.com>

The core may register clients attached to this master which may use
funtionality from the master. So, RuntimePM must be enabled before, otherwise
this will fail.

Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
---

Not tested on HW. Found by code review.

drivers/i2c/busses/i2c-designware-platdrv.c | 12 ++++++------
1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c
index 3dd2de31a2f8d3..920d35ab5cd5d1 100644
--- a/drivers/i2c/busses/i2c-designware-platdrv.c
+++ b/drivers/i2c/busses/i2c-designware-platdrv.c
@@ -253,12 +253,6 @@ static int dw_i2c_probe(struct platform_device *pdev)
adap->dev.parent = &pdev->dev;
adap->dev.of_node = pdev->dev.of_node;

- r = i2c_add_numbered_adapter(adap);
- if (r) {
- dev_err(&pdev->dev, "failure adding adapter\n");
- return r;
- }
-
if (dev->pm_runtime_disabled) {
pm_runtime_forbid(&pdev->dev);
} else {
@@ -268,6 +262,12 @@ static int dw_i2c_probe(struct platform_device *pdev)
pm_runtime_enable(&pdev->dev);
}

+ r = i2c_add_numbered_adapter(adap);
+ if (r) {
+ dev_err(&pdev->dev, "failure adding adapter\n");
+ return r;
+ }
+
return 0;
}

--
2.1.4


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