From 8f486cab263ca1b761c1aab9b36975afd355b799 Mon Sep 17 00:00:00 2001 From: Saravana Kannan Date: Thu, 23 Jun 2022 01:03:42 -0700 Subject: driver core: fw_devlink: Allow firmware to mark devices as best effort When firmware sets the FWNODE_FLAG_BEST_EFFORT flag for a fwnode, fw_devlink will do a best effort ordering for that device where it'll only enforce the probe/suspend/resume ordering of that device with suppliers that have drivers. The driver of that device can then decide if it wants to defer probe or probe without the suppliers. This will be useful for avoid probe delays of the console device that were caused by commit 71066545b48e ("driver core: Set fw_devlink.strict=1 by default"). Fixes: 71066545b48e ("driver core: Set fw_devlink.strict=1 by default") Reported-by: Sascha Hauer Reported-by: Peng Fan Tested-by: Peng Fan Signed-off-by: Saravana Kannan Link: https://lore.kernel.org/r/20220623080344.783549-2-saravanak@google.com Signed-off-by: Greg Kroah-Hartman --- include/linux/fwnode.h | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'include/linux/fwnode.h') diff --git a/include/linux/fwnode.h b/include/linux/fwnode.h index 9a81c4410b9f..89b9bdfca925 100644 --- a/include/linux/fwnode.h +++ b/include/linux/fwnode.h @@ -27,11 +27,15 @@ struct device; * driver needs its child devices to be bound with * their respective drivers as soon as they are * added. + * BEST_EFFORT: The fwnode/device needs to probe early and might be missing some + * suppliers. Only enforce ordering with suppliers that have + * drivers. */ #define FWNODE_FLAG_LINKS_ADDED BIT(0) #define FWNODE_FLAG_NOT_DEVICE BIT(1) #define FWNODE_FLAG_INITIALIZED BIT(2) #define FWNODE_FLAG_NEEDS_CHILD_BOUND_ON_ADD BIT(3) +#define FWNODE_FLAG_BEST_EFFORT BIT(4) struct fwnode_handle { struct fwnode_handle *secondary; -- cgit v1.2.3