From c25feaa53cca696321540ca0f8564bf484224cac Mon Sep 17 00:00:00 2001 From: Charles Keepax Date: Wed, 3 Apr 2013 12:53:37 +0100 Subject: [PATCH] mfd: arizona: Wait for internal clocks to startup after reset Signed-off-by: Mark Brown Signed-off-by: Charles Keepax Signed-off-by: Samuel Ortiz --- drivers/mfd/arizona-core.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/mfd/arizona-core.c b/drivers/mfd/arizona-core.c index ae10af7..41856b4c 100644 --- a/drivers/mfd/arizona-core.c +++ b/drivers/mfd/arizona-core.c @@ -529,8 +529,10 @@ int arizona_dev_init(struct arizona *arizona) goto err_enable; } - if (arizona->pdata.reset) + if (arizona->pdata.reset) { gpio_set_value_cansleep(arizona->pdata.reset, 1); + msleep(1); + } regcache_cache_only(arizona->regmap, false); @@ -589,6 +591,8 @@ int arizona_dev_init(struct arizona *arizona) goto err_reset; } + msleep(1); + ret = regcache_sync(arizona->regmap); if (ret != 0) { dev_err(dev, "Failed to sync device: %d\n", ret); -- 2.7.4