pinctrl: pinconf-generic: loose DT dependence
New pin controllers such as ACPI-based may also have custom properties
to parse, and should be able to use generic pin config. Let's make the
code compile on !OF systems and rename members a bit to underscore it
is custom parameters and not necessarily DT parameters.
This fixes a build regression for x86_64 on the zeroday kernel builds.
Reported-by: kbuild test robot <fengguang.wu@intel.com>
Reviewed-and-tested-by: Soren Brinkmann <soren.brinkmann@xilinx.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
diff --git a/drivers/pinctrl/pinconf-generic.c b/drivers/pinctrl/pinconf-generic.c
index e088666..4db92f6 100644
--- a/drivers/pinctrl/pinconf-generic.c
+++ b/drivers/pinctrl/pinconf-generic.c
@@ -113,10 +113,11 @@
pinconf_generic_dump_one(pctldev, s, gname, pin, conf_items,
ARRAY_SIZE(conf_items));
/* driver-specific parameters */
- if (pctldev->desc->num_dt_params && pctldev->desc->conf_items)
+ if (pctldev->desc->num_custom_params &&
+ pctldev->desc->custom_conf_items)
pinconf_generic_dump_one(pctldev, s, gname, pin,
- pctldev->desc->conf_items,
- pctldev->desc->num_dt_params);
+ pctldev->desc->custom_conf_items,
+ pctldev->desc->num_custom_params);
}
void pinconf_generic_dump_config(struct pinctrl_dev *pctldev,
@@ -131,21 +132,24 @@
pinconf_to_config_argument(config));
}
- if (!pctldev->desc->num_dt_params || !pctldev->desc->conf_items)
+ if (!pctldev->desc->num_custom_params ||
+ !pctldev->desc->custom_conf_items)
return;
- for (i = 0; i < pctldev->desc->num_dt_params; i++) {
- if (pinconf_to_config_param(config) != pctldev->desc->conf_items[i].param)
+ for (i = 0; i < pctldev->desc->num_custom_params; i++) {
+ if (pinconf_to_config_param(config) !=
+ pctldev->desc->custom_conf_items[i].param)
continue;
- seq_printf(s, "%s: 0x%x", pctldev->desc->conf_items[i].display,
- pinconf_to_config_argument(config));
+ seq_printf(s, "%s: 0x%x",
+ pctldev->desc->custom_conf_items[i].display,
+ pinconf_to_config_argument(config));
}
}
EXPORT_SYMBOL_GPL(pinconf_generic_dump_config);
#endif
#ifdef CONFIG_OF
-static const struct pinconf_generic_dt_params dt_params[] = {
+static const struct pinconf_generic_params dt_params[] = {
{ "bias-disable", PIN_CONFIG_BIAS_DISABLE, 0 },
{ "bias-high-impedance", PIN_CONFIG_BIAS_HIGH_IMPEDANCE, 0 },
{ "bias-bus-hold", PIN_CONFIG_BIAS_BUS_HOLD, 0 },
@@ -170,9 +174,9 @@
};
/**
- * parse_dt_cfg - Parse DT pinconf parameters
+ * parse_dt_cfg() - Parse DT pinconf parameters
* @np: DT node
- * @params: Array of describing DT parameters
+ * @params: Array of describing generic parameters
* @count: Number of entries in @params
* @cfg: Array of parsed config options
* @ncfg: Number of entries in @cfg
@@ -183,7 +187,7 @@
* needs to have enough memory allocated to hold all possible entries.
*/
static void parse_dt_cfg(struct device_node *np,
- const struct pinconf_generic_dt_params *params,
+ const struct pinconf_generic_params *params,
unsigned int count, unsigned long *cfg,
unsigned int *ncfg)
{
@@ -192,7 +196,7 @@
for (i = 0; i < count; i++) {
u32 val;
int ret;
- const struct pinconf_generic_dt_params *par = ¶ms[i];
+ const struct pinconf_generic_params *par = ¶ms[i];
ret = of_property_read_u32(np, par->property, &val);
@@ -232,15 +236,16 @@
/* allocate a temporary array big enough to hold one of each option */
max_cfg = ARRAY_SIZE(dt_params);
if (pctldev)
- max_cfg += pctldev->desc->num_dt_params;
+ max_cfg += pctldev->desc->num_custom_params;
cfg = kcalloc(max_cfg, sizeof(*cfg), GFP_KERNEL);
if (!cfg)
return -ENOMEM;
parse_dt_cfg(np, dt_params, ARRAY_SIZE(dt_params), cfg, &ncfg);
- if (pctldev && pctldev->desc->num_dt_params && pctldev->desc->params)
- parse_dt_cfg(np, pctldev->desc->params,
- pctldev->desc->num_dt_params, cfg, &ncfg);
+ if (pctldev && pctldev->desc->num_custom_params &&
+ pctldev->desc->custom_params)
+ parse_dt_cfg(np, pctldev->desc->custom_params,
+ pctldev->desc->num_custom_params, cfg, &ncfg);
ret = 0;
diff --git a/drivers/pinctrl/pinctrl-zynq.c b/drivers/pinctrl/pinctrl-zynq.c
index 6253423..8aa05e2 100644
--- a/drivers/pinctrl/pinctrl-zynq.c
+++ b/drivers/pinctrl/pinctrl-zynq.c
@@ -920,7 +920,7 @@
PIN_CONFIG_IOSTANDARD = PIN_CONFIG_END + 1,
};
-static const struct pinconf_generic_dt_params zynq_dt_params[] = {
+static const struct pinconf_generic_params zynq_dt_params[] = {
{"io-standard", PIN_CONFIG_IOSTANDARD, zynq_iostd_lvcmos18},
};
@@ -1099,9 +1099,9 @@
.pctlops = &zynq_pctrl_ops,
.pmxops = &zynq_pinmux_ops,
.confops = &zynq_pinconf_ops,
- .num_dt_params = ARRAY_SIZE(zynq_dt_params),
- .params = zynq_dt_params,
- .conf_items = zynq_conf_items,
+ .num_custom_params = ARRAY_SIZE(zynq_dt_params),
+ .custom_params = zynq_dt_params,
+ .custom_conf_items = zynq_conf_items,
.owner = THIS_MODULE,
};
diff --git a/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c b/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c
index 17f811c..bbf99a7 100644
--- a/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c
+++ b/drivers/pinctrl/qcom/pinctrl-spmi-gpio.c
@@ -131,7 +131,7 @@
struct gpio_chip chip;
};
-static const struct pinconf_generic_dt_params pmic_gpio_bindings[] = {
+static const struct pinconf_generic_params pmic_gpio_bindings[] = {
{"qcom,pull-up-strength", PMIC_GPIO_CONF_PULL_UP, 0},
{"qcom,drive-strength", PMIC_GPIO_CONF_STRENGTH, 0},
};
@@ -742,9 +742,9 @@
pctrldesc->name = dev_name(dev);
pctrldesc->pins = pindesc;
pctrldesc->npins = npins;
- pctrldesc->num_dt_params = ARRAY_SIZE(pmic_gpio_bindings);
- pctrldesc->params = pmic_gpio_bindings;
- pctrldesc->conf_items = pmic_conf_items;
+ pctrldesc->num_custom_params = ARRAY_SIZE(pmic_gpio_bindings);
+ pctrldesc->custom_params = pmic_gpio_bindings;
+ pctrldesc->custom_conf_items = pmic_conf_items;
for (i = 0; i < npins; i++, pindesc++) {
pad = &pads[i];
diff --git a/include/linux/pinctrl/pinconf-generic.h b/include/linux/pinctrl/pinconf-generic.h
index 342409f..fe65962 100644
--- a/include/linux/pinctrl/pinconf-generic.h
+++ b/include/linux/pinctrl/pinconf-generic.h
@@ -162,7 +162,7 @@
struct pinctrl_dev;
struct pinctrl_map;
-struct pinconf_generic_dt_params {
+struct pinconf_generic_params {
const char * const property;
enum pin_config_param param;
u32 default_value;
diff --git a/include/linux/pinctrl/pinctrl.h b/include/linux/pinctrl/pinctrl.h
index c58b3e1..66e4697 100644
--- a/include/linux/pinctrl/pinctrl.h
+++ b/include/linux/pinctrl/pinctrl.h
@@ -118,9 +118,12 @@
* @confops: pin config operations vtable, if you support pin configuration in
* your driver
* @owner: module providing the pin controller, used for refcounting
- * @num_dt_params: Number of driver-specific DT parameters
- * @params: List of DT parameters
- * @conf_items: Information how to print @params in debugfs
+ * @num_custom_params: Number of driver-specific custom parameters to be parsed
+ * from the hardware description
+ * @custom_params: List of driver_specific custom parameters to be parsed from
+ * the hardware description
+ * @custom_conf_items: Information how to print @params in debugfs, must be
+ * the same size as the @custom_params, i.e. @num_custom_params
*/
struct pinctrl_desc {
const char *name;
@@ -130,10 +133,10 @@
const struct pinmux_ops *pmxops;
const struct pinconf_ops *confops;
struct module *owner;
-#if defined(CONFIG_GENERIC_PINCONF) && defined(CONFIG_OF)
- unsigned int num_dt_params;
- const struct pinconf_generic_dt_params *params;
- const struct pin_config_item *conf_items;
+#ifdef CONFIG_GENERIC_PINCONF
+ unsigned int num_custom_params;
+ const struct pinconf_generic_params *custom_params;
+ const struct pin_config_item *custom_conf_items;
#endif
};