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Message-ID: <1434610052-602-2-git-send-email-bjorn.andersson@sonymobile.com>
Date: Wed, 17 Jun 2015 23:47:25 -0700
From: Bjorn Andersson <bjorn.andersson@...ymobile.com>
To: Linus Walleij <linus.walleij@...aro.org>,
"Ivan T. Ivanov" <ivan.ivanov@...aro.org>
CC: <linux-gpio@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<linux-arm-msm@...r.kernel.org>
Subject: [PATCH 1/8] pinctrl: qcom: spmi-mpp: Transition to generic dt binding parser
Use the newly introduced extensible generic dt parser instead of rolling
our own dt parsing functions.
Signed-off-by: Bjorn Andersson <bjorn.andersson@...ymobile.com>
---
drivers/pinctrl/qcom/pinctrl-spmi-mpp.c | 130 ++++----------------------------
1 file changed, 16 insertions(+), 114 deletions(-)
diff --git a/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c b/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c
index 3121de9b6331..b247a17bc2af 100644
--- a/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c
+++ b/drivers/pinctrl/qcom/pinctrl-spmi-mpp.c
@@ -129,15 +129,17 @@ struct pmic_mpp_state {
struct gpio_chip chip;
};
-struct pmic_mpp_bindings {
- const char *property;
- unsigned param;
+static const struct pinconf_generic_params pmic_mpp_bindings[] = {
+ {"qcom,amux-route", PMIC_MPP_CONF_AMUX_ROUTE, 0},
+ {"qcom,analog-mode", PMIC_MPP_CONF_ANALOG_MODE, 0},
};
-static struct pmic_mpp_bindings pmic_mpp_bindings[] = {
- {"qcom,amux-route", PMIC_MPP_CONF_AMUX_ROUTE},
- {"qcom,analog-mode", PMIC_MPP_CONF_ANALOG_MODE},
+#ifdef CONFIG_DEBUG_FS
+static const struct pin_config_item pmic_conf_items[] = {
+ PCONFDUMP(PMIC_MPP_CONF_AMUX_ROUTE, "analog mux", NULL, true),
+ PCONFDUMP(PMIC_MPP_CONF_ANALOG_MODE, "analog output", NULL, false),
};
+#endif
static const char *const pmic_mpp_groups[] = {
"mpp1", "mpp2", "mpp3", "mpp4", "mpp5", "mpp6", "mpp7", "mpp8",
@@ -204,118 +206,11 @@ static int pmic_mpp_get_group_pins(struct pinctrl_dev *pctldev,
return 0;
}
-static int pmic_mpp_parse_dt_config(struct device_node *np,
- struct pinctrl_dev *pctldev,
- unsigned long **configs,
- unsigned int *nconfs)
-{
- struct pmic_mpp_bindings *par;
- unsigned long cfg;
- int ret, i;
- u32 val;
-
- for (i = 0; i < ARRAY_SIZE(pmic_mpp_bindings); i++) {
- par = &pmic_mpp_bindings[i];
- ret = of_property_read_u32(np, par->property, &val);
-
- /* property not found */
- if (ret == -EINVAL)
- continue;
-
- /* use zero as default value, when no value is specified */
- if (ret)
- val = 0;
-
- dev_dbg(pctldev->dev, "found %s with value %u\n",
- par->property, val);
-
- cfg = pinconf_to_config_packed(par->param, val);
-
- ret = pinctrl_utils_add_config(pctldev, configs, nconfs, cfg);
- if (ret)
- return ret;
- }
-
- return 0;
-}
-
-static int pmic_mpp_dt_subnode_to_map(struct pinctrl_dev *pctldev,
- struct device_node *np,
- struct pinctrl_map **map,
- unsigned *reserv, unsigned *nmaps,
- enum pinctrl_map_type type)
-{
- unsigned long *configs = NULL;
- unsigned nconfs = 0;
- struct property *prop;
- const char *group;
- int ret;
-
- ret = pmic_mpp_parse_dt_config(np, pctldev, &configs, &nconfs);
- if (ret < 0)
- return ret;
-
- if (!nconfs)
- return 0;
-
- ret = of_property_count_strings(np, "pins");
- if (ret < 0)
- goto exit;
-
- ret = pinctrl_utils_reserve_map(pctldev, map, reserv, nmaps, ret);
- if (ret < 0)
- goto exit;
-
- of_property_for_each_string(np, "pins", prop, group) {
- ret = pinctrl_utils_add_map_configs(pctldev, map,
- reserv, nmaps, group,
- configs, nconfs, type);
- if (ret < 0)
- break;
- }
-exit:
- kfree(configs);
- return ret;
-}
-
-static int pmic_mpp_dt_node_to_map(struct pinctrl_dev *pctldev,
- struct device_node *np_config,
- struct pinctrl_map **map, unsigned *nmaps)
-{
- struct device_node *np;
- enum pinctrl_map_type type;
- unsigned reserv;
- int ret;
-
- ret = 0;
- *map = NULL;
- *nmaps = 0;
- reserv = 0;
- type = PIN_MAP_TYPE_CONFIGS_GROUP;
-
- for_each_child_of_node(np_config, np) {
- ret = pinconf_generic_dt_subnode_to_map(pctldev, np, map,
- &reserv, nmaps, type);
- if (ret)
- break;
-
- ret = pmic_mpp_dt_subnode_to_map(pctldev, np, map, &reserv,
- nmaps, type);
- if (ret)
- break;
- }
-
- if (ret < 0)
- pinctrl_utils_dt_free_map(pctldev, *map, *nmaps);
-
- return ret;
-}
-
static const struct pinctrl_ops pmic_mpp_pinctrl_ops = {
.get_groups_count = pmic_mpp_get_groups_count,
.get_group_name = pmic_mpp_get_group_name,
.get_group_pins = pmic_mpp_get_group_pins,
- .dt_node_to_map = pmic_mpp_dt_node_to_map,
+ .dt_node_to_map = pinconf_generic_dt_node_to_map_group,
.dt_free_map = pinctrl_utils_dt_free_map,
};
@@ -594,6 +489,7 @@ static void pmic_mpp_config_dbg_show(struct pinctrl_dev *pctldev,
}
static const struct pinconf_ops pmic_mpp_pinconf_ops = {
+ .is_generic = true,
.pin_config_group_get = pmic_mpp_config_get,
.pin_config_group_set = pmic_mpp_config_set,
.pin_config_group_dbg_show = pmic_mpp_config_dbg_show,
@@ -866,6 +762,12 @@ static int pmic_mpp_probe(struct platform_device *pdev)
pctrldesc->pins = pindesc;
pctrldesc->npins = npins;
+ pctrldesc->num_custom_params = ARRAY_SIZE(pmic_mpp_bindings);
+ pctrldesc->custom_params = pmic_mpp_bindings;
+#ifdef CONFIG_DEBUG_FS
+ pctrldesc->custom_conf_items = pmic_conf_items;
+#endif
+
for (i = 0; i < npins; i++, pindesc++) {
pad = &pads[i];
pindesc->drv_data = pad;
--
1.8.2.2
--
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