commit 57c7ee15d1b49ea7548ec375556644db76aab1b0
author Tim Murray <timmurray@google.com> Thu Oct 20 13:53:58 2016 -0700
committer Chintan Pandya <cpandya@codeaurora.org> Mon Feb 19 17:03:33 2018 +0530
tree c86b92bd2c84b1d4c7e33c5341240e11b95dc0bf
parent 8b7300fdf865542ed29e79e9745e8dcdaea9debb

firmware_class: make firmware caching configurable

Because firmware caching generates uevent messages that are sent over a
netlink socket, it can prevent suspend on many platforms. It's also not
always useful, so make it a configurable option.

bug 32180327

Change-Id: I1250512b27edb56caa78d536e5ccf1fb669476ad
Signed-off-by: Tim Murray <timmurray@google.com>
Git-repo: https://source.codeaurora.org/quic/la/kernel/msm-4.4
Git-commit: e3198d51be98ec5606e2a2c5112a8a974d354fbc
Signed-off-by: Chintan Pandya <cpandya@codeaurora.org>

drivers/base/firmware_class.c

diff --git a/drivers/base/firmware_class.c b/drivers/base/firmware_class.c
index 914433f..813a191 100644
--- a/drivers/base/firmware_class.c
+++ b/drivers/base/firmware_class.c
@@ -994,7 +994,7 @@
 	return _request_firmware_load(fw_priv, opt_flags, timeout);
 }
 
-#ifdef CONFIG_PM_SLEEP
+#ifdef CONFIG_FW_CACHE
 /* kill pending requests without uevent to avoid blocking suspend */
 static void kill_requests_without_uevent(void)
 {
@@ -1395,7 +1395,7 @@
 }
 EXPORT_SYMBOL(request_firmware_nowait);
 
-#ifdef CONFIG_PM_SLEEP
+#ifdef CONFIG_FW_CACHE
 static ASYNC_DOMAIN_EXCLUSIVE(fw_cache_domain);
 
 /**
@@ -1741,7 +1741,7 @@
 	INIT_LIST_HEAD(&fw_cache.head);
 	fw_cache.state = FW_LOADER_NO_CACHE;
 
-#ifdef CONFIG_PM_SLEEP
+#ifdef CONFIG_FW_CACHE
 	spin_lock_init(&fw_cache.name_lock);
 	INIT_LIST_HEAD(&fw_cache.fw_names);
 
@@ -1768,7 +1768,7 @@
 
 static void __exit firmware_class_exit(void)
 {
-#ifdef CONFIG_PM_SLEEP
+#ifdef CONFIG_FW_CACHE
 	unregister_syscore_ops(&fw_syscore_ops);
 	unregister_pm_notifier(&fw_cache.pm_notify);
 #endif