diff options
Diffstat (limited to 'drivers/mfd/madera-core.c')
| -rw-r--r-- | drivers/mfd/madera-core.c | 17 |
1 files changed, 15 insertions, 2 deletions
diff --git a/drivers/mfd/madera-core.c b/drivers/mfd/madera-core.c index a8cfadc1fc01..a7d50a7fa625 100644 --- a/drivers/mfd/madera-core.c +++ b/drivers/mfd/madera-core.c @@ -199,7 +199,7 @@ EXPORT_SYMBOL_GPL(madera_name_from_type); #define MADERA_BOOT_POLL_INTERVAL_USEC 5000 #define MADERA_BOOT_POLL_TIMEOUT_USEC 25000 -static int madera_wait_for_boot(struct madera *madera) +static int madera_wait_for_boot_noack(struct madera *madera) { ktime_t timeout; unsigned int val = 0; @@ -226,6 +226,13 @@ static int madera_wait_for_boot(struct madera *madera) ret = -ETIMEDOUT; } + return ret; +} + +static int madera_wait_for_boot(struct madera *madera) +{ + int ret = madera_wait_for_boot_noack(madera); + /* * BOOT_DONE defaults to unmasked on boot so we must ack it. * Do this even after a timeout to avoid interrupt storms. @@ -545,6 +552,12 @@ int madera_dev_init(struct madera *madera) regcache_cache_only(madera->regmap, false); regcache_cache_only(madera->regmap_32bit, false); + ret = madera_wait_for_boot_noack(madera); + if (ret) { + dev_err(madera->dev, "Device failed initial boot: %d\n", ret); + goto err_reset; + } + /* * Now we can power up and verify that this is a chip we know about * before we start doing any writes to its registers. @@ -650,7 +663,7 @@ int madera_dev_init(struct madera *madera) ret = madera_wait_for_boot(madera); if (ret) { - dev_err(madera->dev, "Device failed initial boot: %d\n", ret); + dev_err(madera->dev, "Failed to clear boot done: %d\n", ret); goto err_reset; } |