linux-kernel - [PATCH] pinctrl: add a group-specific hog macro

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Message-ID: <1323851530-4171-1-git-send-email-linus.walleij@stericsson.com>
Date:	Wed, 14 Dec 2011 09:32:10 +0100
From:	Linus Walleij <linus.walleij@...ricsson.com>
To:	<linux-kernel@...r.kernel.org>
Cc:	Stephen Warren <swarren@...dia.com>,
	Grant Likely <grant.likely@...retlab.ca>,
	Barry Song <21cnbao@...il.com>,
	Shawn Guo <shawn.guo@...escale.com>,
	Thomas Abraham <thomas.abraham@...aro.org>,
	Dong Aisheng <dong.aisheng@...aro.org>,
	Rajendra Nayak <rajendra.nayak@...aro.org>,
	Haojian Zhuang <haojian.zhuang@...vell.com>,
	Linus Walleij <linus.walleij@...aro.org>
Subject: [PATCH] pinctrl: add a group-specific hog macro

From: Linus Walleij <linus.walleij@...aro.org>

To create elegant tables for pinmux hogs on the PXA MMP platform,
we need this hog macro that can specify both function and group in
one go.

Signed-off-by: Linus Walleij <linus.walleij@...aro.org>
---
 include/linux/pinctrl/machine.h |    9 +++++++++
 1 files changed, 9 insertions(+), 0 deletions(-)

diff --git a/include/linux/pinctrl/machine.h b/include/linux/pinctrl/machine.h
index ad430e0..d0aecb7 100644
--- a/include/linux/pinctrl/machine.h
+++ b/include/linux/pinctrl/machine.h
@@ -73,6 +73,15 @@ struct pinmux_map {
 	{ .name = a, .ctrl_dev_name = b, .function = c, \
 	  .hog_on_boot = true }
 
+/*
+ * Convenience macro to map a system function onto a certain pinctrl device
+ * using a specified group, to be hogged by the pinmux core until the system
+ * shuts down.
+ */
+#define PINMUX_MAP_SYS_HOG_GROUP(a, b, c, d)		\
+	{ .name = a, .ctrl_dev_name = b, .function = c, .group = d, \
+	  .hog_on_boot = true }
+
 #ifdef CONFIG_PINMUX
 
 extern int pinmux_register_mappings(struct pinmux_map const *map,
-- 
1.7.3.2

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