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From 7187a35b9cfb037af585b064ec5c733189d86b68 Mon Sep 17 00:00:00 2001
From: Jon Hunter <jonathanh@nvidia.com>
Date: Tue, 14 Jul 2015 11:17:58 +0100
Subject: [PATCH 216/326] pinctrl: pinconf: Allow groups to be configured via
debugfs
The function pinconf_dbg_config_write() currently only supports configuring
a pin configuration mapping via the debugfs. Allow group mappings to also
be configured via the debugfs.
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
(cherry picked from commit 75629981069cf194336426bbbfb03f9c93d7ad67)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
---
drivers/pinctrl/pinconf.c | 20 ++++++++++++++------
1 file changed, 14 insertions(+), 6 deletions(-)
diff --git a/drivers/pinctrl/pinconf.c b/drivers/pinctrl/pinconf.c
index 1fc09dc20199..4744d6363dfb 100644
--- a/drivers/pinctrl/pinconf.c
+++ b/drivers/pinctrl/pinconf.c
@@ -470,10 +470,12 @@ exit:
* pinconf_dbg_config_write() - modify the pinctrl config in the pinctrl
* map, of a dev/pin/state entry based on user entries to pinconf-config
* @user_buf: contains the modification request with expected format:
- * modify config_pin <devicename> <state> <pinname> <newvalue>
+ * modify <config> <devicename> <state> <name> <newvalue>
* modify is literal string, alternatives like add/delete not supported yet
- * config_pin is literal, alternatives like config_mux not supported yet
- * <devicename> <state> <pinname> are values that should match the pinctrl-maps
+ * <config> is the configuration to be changed. Supported configs are
+ * "config_pin" or "config_group", alternatives like config_mux are not
+ * supported yet.
+ * <devicename> <state> <name> are values that should match the pinctrl-maps
* <newvalue> reflects the new config and is driver dependant
*/
static ssize_t pinconf_dbg_config_write(struct file *file,
@@ -511,13 +513,19 @@ static ssize_t pinconf_dbg_config_write(struct file *file,
if (strcmp(token, "modify"))
return -EINVAL;
- /* Get arg type: "config_pin" type supported so far */
+ /*
+ * Get arg type: "config_pin" and "config_group"
+ * types are supported so far
+ */
token = strsep(&b, " ");
if (!token)
return -EINVAL;
- if (strcmp(token, "config_pin"))
+ if (!strcmp(token, "config_pin"))
+ dbg->map_type = PIN_MAP_TYPE_CONFIGS_PIN;
+ else if (!strcmp(token, "config_group"))
+ dbg->map_type = PIN_MAP_TYPE_CONFIGS_GROUP;
+ else
return -EINVAL;
- dbg->map_type = PIN_MAP_TYPE_CONFIGS_PIN;
/* get arg 'device_name' */
token = strsep(&b, " ");
--
2.6.2
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