diff options
| -rw-r--r-- | drivers/soc/qcom/subsystem_restart.c | 44 |
1 files changed, 25 insertions, 19 deletions
diff --git a/drivers/soc/qcom/subsystem_restart.c b/drivers/soc/qcom/subsystem_restart.c index 6cfb8f7c836c..015e60ac622c 100644 --- a/drivers/soc/qcom/subsystem_restart.c +++ b/drivers/soc/qcom/subsystem_restart.c @@ -572,25 +572,6 @@ static void disable_all_irqs(struct subsys_device *dev) } } -int wait_for_shutdown_ack(struct subsys_desc *desc) -{ - int count; - - if (desc && !desc->shutdown_ack_gpio) - return 0; - - for (count = SHUTDOWN_ACK_MAX_LOOPS; count > 0; count--) { - if (gpio_get_value(desc->shutdown_ack_gpio)) - return count; - msleep(SHUTDOWN_ACK_DELAY_MS); - } - - pr_err("[%s]: Timed out waiting for shutdown ack\n", desc->name); - - return -ETIMEDOUT; -} -EXPORT_SYMBOL(wait_for_shutdown_ack); - static int wait_for_err_ready(struct subsys_device *subsys) { int ret; @@ -768,6 +749,31 @@ int subsystem_set_fwname(const char *name, const char *fw_name) } EXPORT_SYMBOL(subsystem_set_fwname); +int wait_for_shutdown_ack(struct subsys_desc *desc) +{ + int count; + struct subsys_device *dev; + + if (!desc || !desc->shutdown_ack_gpio) + return 0; + + dev = find_subsys(desc->name); + if (!dev) + return 0; + + for (count = SHUTDOWN_ACK_MAX_LOOPS; count > 0; count--) { + if (gpio_get_value(desc->shutdown_ack_gpio)) + return count; + else if (subsys_get_crash_status(dev)) + break; + msleep(SHUTDOWN_ACK_DELAY_MS); + } + + pr_err("[%s]: Timed out waiting for shutdown ack\n", desc->name); + return -ETIMEDOUT; +} +EXPORT_SYMBOL(wait_for_shutdown_ack); + void *__subsystem_get(const char *name, const char *fw_name) { struct subsys_device *subsys; |