On the first boot of the wm5110 it is important the reset line is held
for slightly longer to ensure the device starts up well. This patch adds
a 5mS delay for this.
Signed-off-by: Charles Keepax <ckee...@opensource.wolfsonmicro.com>
---
drivers/mfd/arizona-core.c | 9 +++++++++
1 files changed, 9 insertions(+), 0 deletions(-)
diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c
index 8f61ccf..1ecf9f5 100644
--- a/drivers/mfd/arizona-core.c
+++ b/drivers/mfd/arizona-core.c
@@ -784,6 +784,15 @@ int arizona_dev_init(struct arizona *arizona)
goto err_enable;
}
+ switch (arizona->type) {
+ case WM5110:
+ case WM8280:
+ msleep(5);
+ break;
+ default:
+ break;
+ }
+
if (arizona->pdata.reset) {
gpio_set_value_cansleep(arizona->pdata.reset, 1);
msleep(1);
--
1.7.2.5
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