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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>
hifive-unleashed-5.1
Jon Hunter 2015-07-14 11:17:58 +01:00 committed by Linus Walleij
parent ad64498762
commit 7562998106
1 changed files with 14 additions and 6 deletions
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20
drivers/pinctrl/pinconf.c
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@ -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, " ");