From: Sakari Ailus <sakari.ailus@linux.intel.com>
To: linux-acpi@vger.kernel.org, devicetree@vger.kernel.org
Cc: sudeep.holla@arm.com, lorenzo.pieralisi@arm.com,
mika.westerberg@linux.intel.com, rafael@kernel.org,
mark.rutland@arm.com, broonie@kernel.org, robh@kernel.org,
ahs3@redhat.com
Subject: [PATCH v1.1 05/20] device property: Add macros for calling fwnode operations
Date: Fri, 24 Feb 2017 11:36:31 +0200 [thread overview]
Message-ID: <1487928991-14959-1-git-send-email-sakari.ailus@linux.intel.com> (raw)
In-Reply-To: <1487869276-25244-6-git-send-email-sakari.ailus@linux.intel.com>
Not all implementations may implement all fwnode operations. Instead of
leaving this up to the caller to figure out, add a few macros for the
purpose.
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
---
since v1:
- Use correct return codes for ops returning integers. -ENXIO is returned if an op
does not exist and -EINVAL is returned if fwnode is NULL.
include/linux/fwnode.h | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/include/linux/fwnode.h b/include/linux/fwnode.h
index ede74fb..75e2a00 100644
--- a/include/linux/fwnode.h
+++ b/include/linux/fwnode.h
@@ -82,4 +82,19 @@ struct fwnode_operations {
struct fwnode_endpoint *endpoint);
};
+#define fwnode_has_op(fwnode, op) \
+ ((fwnode) && (fwnode)->ops && (fwnode)->ops->op)
+#define fwnode_call_int_op(fwnode, op, ...) \
+ (fwnode ? (fwnode_has_op(fwnode, op) ? \
+ (fwnode)->ops->op(fwnode, ## __VA_ARGS__) : -ENXIO) : \
+ -EINVAL)
+#define fwnode_call_ptr_op(fwnode, op, ...) \
+ (fwnode_has_op(fwnode, op) ? \
+ (fwnode)->ops->op(fwnode, ## __VA_ARGS__) : NULL)
+#define fwnode_call_void_op(fwnode, op, ...) \
+ do { \
+ if (fwnode_has_op(fwnode, op)) \
+ (fwnode)->ops->op(fwnode, ## __VA_ARGS__); \
+ } while (false)
+
#endif
--
2.7.4
next prev parent reply other threads:[~2017-02-24 9:36 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-23 17:00 [PATCH 00/20] Move firmware specific code to firmware specific locations Sakari Ailus
2017-02-23 17:00 ` [PATCH 01/20] device property: fwnode_property_read_string_array() may return -EILSEQ Sakari Ailus
2017-02-23 17:00 ` [PATCH 02/20] device property: Fix reading pset strings using array access functions Sakari Ailus
2017-02-23 17:00 ` [PATCH 03/20] device property: of_property_read_string_array() returns number of strings Sakari Ailus
2017-02-23 23:42 ` Rob Herring
2017-02-24 8:15 ` Sakari Ailus
2017-02-23 17:01 ` [PATCH 04/20] device property: Add operations struct for fwnode operations Sakari Ailus
2017-02-23 17:01 ` [PATCH 05/20] device property: Add macros for calling " Sakari Ailus
2017-02-24 9:36 ` Sakari Ailus [this message]
2017-02-23 17:01 ` [PATCH 06/20] device property: Introduce firmware property operations, set them Sakari Ailus
2017-02-23 17:01 ` [PATCH 07/20] device property: Use fwnode_operations for fwnode_handle_{get,put} Sakari Ailus
2017-02-23 17:01 ` [PATCH 08/20] device property: Use fwnode_operations for fwnode_property_present() Sakari Ailus
2017-02-23 17:01 ` [PATCH 09/20] device property: Use fwnode_operations for reading integer arrays Sakari Ailus
2017-02-23 17:01 ` [PATCH 10/20] device property: Read strings using string array reading functions Sakari Ailus
2017-02-23 17:01 ` [PATCH 13/20] device property: Use fwnode_operations for obtaining next child node Sakari Ailus
2017-02-23 17:01 ` [PATCH 14/20] device property: Use fwnode_operations for obtaining a named " Sakari Ailus
[not found] ` <1487869276-25244-1-git-send-email-sakari.ailus-VuQAYsv1563Yd54FQh9/CA@public.gmane.org>
2017-02-23 17:01 ` [PATCH 11/20] device property: Use fwnode_operations for reading string arrays Sakari Ailus
2017-02-23 17:01 ` [PATCH 12/20] device property: Use fwnode_operations for obtaining parent node Sakari Ailus
2017-02-23 17:01 ` [PATCH 15/20] device property: Use fwnode_operations for obtaining next graph endpoint Sakari Ailus
2017-02-23 17:01 ` [PATCH 17/20] device property: Use fwnode_operations for obtaining the remote port Sakari Ailus
2017-02-23 17:01 ` [PATCH 16/20] device property: Use fwnode_operations for obtaining the remote endpoint Sakari Ailus
2017-02-23 17:01 ` [PATCH 18/20] device property: Use fwnode_operations for obtaining the remote port parent Sakari Ailus
2017-02-23 17:01 ` [PATCH 19/20] device property: Use fwnode_operations for parsing graph endpoint Sakari Ailus
2017-02-23 17:01 ` [PATCH 20/20] device property: Implement fwnode_get_next_parent() using fwnode interface Sakari Ailus
2017-02-23 22:37 ` [PATCH 00/20] Move firmware specific code to firmware specific locations Rafael J. Wysocki
[not found] ` <2915459.fDeP2CYj8T-yvgW3jdyMHm1GS7QM15AGw@public.gmane.org>
2017-02-24 8:25 ` Sakari Ailus
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