Hello.
On 12/16/2015 09:44 PM, Wolfram Sang wrote:
From: Wolfram Sang <[email protected]>
In multi master mode, the IP core needs to be always active for
arbitration reasons. Get the config from DT and set up PM depending on
the config.
Signed-off-by: Wolfram Sang <[email protected]>
---
drivers/i2c/busses/i2c-rcar.c | 17 ++++++++++++++---
1 file changed, 14 insertions(+), 3 deletions(-)
diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c
index 79fd2aab8fa087..7c523dcaee3e48 100644
--- a/drivers/i2c/busses/i2c-rcar.c
+++ b/drivers/i2c/busses/i2c-rcar.c
[...]
@@ -630,7 +633,13 @@ static int rcar_i2c_probe(struct platform_device *pdev)
goto out_pm_put;
rcar_i2c_init(priv);
- pm_runtime_put(dev);
+
+ /* Don't suspend when multi-master to keep arbitration working */
+ if (of_get_property(dev->of_node, "multi-master", NULL))
of_property_read_bool(), perhaps?
[...]
MBR, Sergei
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