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authorSoren Brinkmann <soren.brinkmann@xilinx.com>2015-01-09 18:43:46 +0300
committerLinus Walleij <linus.walleij@linaro.org>2015-01-12 00:32:19 +0300
commitdd4d01f7bad886c22687224bc7070b87de8deb51 (patch)
treef1e2e99a8cc4859a48372212213ceb59aa183e38 /drivers/pinctrl/pinconf.h
parent31c89c959667194350f496947b576c149503ce98 (diff)
downloadlinux-dd4d01f7bad886c22687224bc7070b87de8deb51.tar.xz
pinctrl: pinconf-generic: Allow driver to specify DT params
Additionally to the generic DT parameters, allow drivers to provide driver-specific DT parameters to be used with the generic parser infrastructure. To achieve this 'struct pinctrl_desc' is extended to pass custom pinconf option to the core. In order to pass this kind of information, the related data structures - 'struct pinconf_generic_dt_params', 'pin_config_item' - are moved from pinconf internals to the pinconf-generic header. Additionally pinconfg-generic is refactored to not only iterate over the generic pinconf parameters but also take the parameters into account that are provided through the driver's 'struct pinctrl_desc'. In particular 'pinconf_generic_parse_dt_config()' and 'pinconf_generic_dump' helpers are split into two parts each. In order to have a more generic helper that can be used to process the generic parameters as well as the driver-specific ones. v2: - fix typo - add missing documentation for @conf_items member in struct - rebase to pinctrl/devel: conflict in abx500 - rename _pinconf_generic_dump() to pinconf_generic_dump_one() - removed '_' from _parse_dt_cfg() - removed BUG_ONs, error condition is handled in if statements - removed pinconf_generic_dump_group() & pinconf_generic_dump_pin helpers - fixed up corresponding call sites - renamed pinconf_generic_dump() to pinconf_generic_dump_pins() - added kernel-doc to pinconf_generic_dump_pins() - add kernel-doc - more verbose commit message Signed-off-by: Soren Brinkmann <soren.brinkmann@xilinx.com> Tested-by: Andreas Färber <afaerber@suse.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/pinconf.h')
-rw-r--r--drivers/pinctrl/pinconf.h22
1 files changed, 7 insertions, 15 deletions
diff --git a/drivers/pinctrl/pinconf.h b/drivers/pinctrl/pinconf.h
index a4a5417e1413..55c75780b3b2 100644
--- a/drivers/pinctrl/pinconf.h
+++ b/drivers/pinctrl/pinconf.h
@@ -92,26 +92,17 @@ static inline void pinconf_init_device_debugfs(struct dentry *devroot,
#if defined(CONFIG_GENERIC_PINCONF) && defined(CONFIG_DEBUG_FS)
-void pinconf_generic_dump_pin(struct pinctrl_dev *pctldev,
- struct seq_file *s, unsigned pin);
-
-void pinconf_generic_dump_group(struct pinctrl_dev *pctldev,
- struct seq_file *s, const char *gname);
+void pinconf_generic_dump_pins(struct pinctrl_dev *pctldev,
+ struct seq_file *s, const char *gname,
+ unsigned pin);
void pinconf_generic_dump_config(struct pinctrl_dev *pctldev,
struct seq_file *s, unsigned long config);
#else
-static inline void pinconf_generic_dump_pin(struct pinctrl_dev *pctldev,
- struct seq_file *s,
- unsigned pin)
-{
- return;
-}
-
-static inline void pinconf_generic_dump_group(struct pinctrl_dev *pctldev,
- struct seq_file *s,
- const char *gname)
+static inline void pinconf_generic_dump_pins(struct pinctrl_dev *pctldev,
+ struct seq_file *s,
+ const char *gname, unsigned pin)
{
return;
}
@@ -126,6 +117,7 @@ static inline void pinconf_generic_dump_config(struct pinctrl_dev *pctldev,
#if defined(CONFIG_GENERIC_PINCONF) && defined(CONFIG_OF)
int pinconf_generic_parse_dt_config(struct device_node *np,
+ struct pinctrl_dev *pctldev,
unsigned long **configs,
unsigned int *nconfigs);
#endif