hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

pinctrl: abx500: refactor DT parser to take two paths 

We refactor the DT parser to look for either a config or a
function and then look for further nodes and reserve maps,
not the two things mixed up like prior to this patch.

Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Linus Walleij 2014-09-30 11:22:07 +02:00
parent b07f92a220
commit 259145feff
1 changed files with 28 additions and 26 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

54
drivers/pinctrl/nomadik/pinctrl-abx500.c
View File

@ -893,19 +893,32 @@ static int abx500_dt_subnode_to_map(struct pinctrl_dev *pctldev,
unsigned long *configs;
unsigned int nconfigs = 0;
bool has_config = 0;
unsigned reserve = 0;
struct property *prop;
const char *group, *gpio_name;
struct device_node *np_config;
ret = of_property_read_string(np, "ste,function", &function);
if (ret >= 0)
reserve = 1;
if (ret >= 0) {
ret = of_property_count_strings(np, "ste,pins");
if (ret < 0)
goto exit;
ret = pinctrl_utils_reserve_map(pctldev, map, reserved_maps,
num_maps, ret);
if (ret < 0)
goto exit;
of_property_for_each_string(np, "ste,pins", prop, group) {
ret = abx500_dt_add_map_mux(map, reserved_maps,
num_maps, group, function);
if (ret < 0)
goto exit;
}
}
ret = pinconf_generic_parse_dt_config(np, &configs, &nconfigs);
if (nconfigs)
has_config = 1;
np_config = of_parse_phandle(np, "ste,config", 0);
if (np_config) {
ret = pinconf_generic_parse_dt_config(np_config, &configs,
@ -914,29 +927,18 @@ static int abx500_dt_subnode_to_map(struct pinctrl_dev *pctldev,
goto exit;
has_config |= nconfigs;
}
if (has_config) {
ret = of_property_count_strings(np, "ste,pins");
if (ret < 0)
goto exit;
ret = of_property_count_strings(np, "ste,pins");
if (ret < 0)
goto exit;
ret = pinctrl_utils_reserve_map(pctldev, map,
reserved_maps,
num_maps, ret);
if (ret < 0)
goto exit;
if (has_config)
reserve++;
reserve *= ret;
ret = pinctrl_utils_reserve_map(pctldev, map, reserved_maps,
num_maps, reserve);
if (ret < 0)
goto exit;
of_property_for_each_string(np, "ste,pins", prop, group) {
if (function) {
ret = abx500_dt_add_map_mux(map, reserved_maps,
num_maps, group, function);
if (ret < 0)
goto exit;
}
if (has_config) {
of_property_for_each_string(np, "ste,pins", prop, group) {
gpio_name = abx500_find_pin_name(pctldev, group);
ret = abx500_dt_add_map_configs(map, reserved_maps,
@ -944,8 +946,8 @@ static int abx500_dt_subnode_to_map(struct pinctrl_dev *pctldev,
if (ret < 0)
goto exit;
}
}
exit:
return ret;
}