v4.19.13 snapshot.
diff --git a/include/linux/pinctrl/consumer.h b/include/linux/pinctrl/consumer.h
new file mode 100644
index 0000000..0412cc9
--- /dev/null
+++ b/include/linux/pinctrl/consumer.h
@@ -0,0 +1,201 @@
+/*
+ * Consumer interface the pin control subsystem
+ *
+ * Copyright (C) 2012 ST-Ericsson SA
+ * Written on behalf of Linaro for ST-Ericsson
+ * Based on bits of regulator core, gpio core and clk core
+ *
+ * Author: Linus Walleij <linus.walleij@linaro.org>
+ *
+ * License terms: GNU General Public License (GPL) version 2
+ */
+#ifndef __LINUX_PINCTRL_CONSUMER_H
+#define __LINUX_PINCTRL_CONSUMER_H
+
+#include <linux/err.h>
+#include <linux/list.h>
+#include <linux/seq_file.h>
+#include <linux/pinctrl/pinctrl-state.h>
+
+/* This struct is private to the core and should be regarded as a cookie */
+struct pinctrl;
+struct pinctrl_state;
+struct device;
+
+#ifdef CONFIG_PINCTRL
+
+/* External interface to pin control */
+extern int pinctrl_gpio_request(unsigned gpio);
+extern void pinctrl_gpio_free(unsigned gpio);
+extern int pinctrl_gpio_direction_input(unsigned gpio);
+extern int pinctrl_gpio_direction_output(unsigned gpio);
+extern int pinctrl_gpio_set_config(unsigned gpio, unsigned long config);
+
+extern struct pinctrl * __must_check pinctrl_get(struct device *dev);
+extern void pinctrl_put(struct pinctrl *p);
+extern struct pinctrl_state * __must_check pinctrl_lookup_state(
+ struct pinctrl *p,
+ const char *name);
+extern int pinctrl_select_state(struct pinctrl *p, struct pinctrl_state *s);
+
+extern struct pinctrl * __must_check devm_pinctrl_get(struct device *dev);
+extern void devm_pinctrl_put(struct pinctrl *p);
+
+#ifdef CONFIG_PM
+extern int pinctrl_pm_select_default_state(struct device *dev);
+extern int pinctrl_pm_select_sleep_state(struct device *dev);
+extern int pinctrl_pm_select_idle_state(struct device *dev);
+#else
+static inline int pinctrl_pm_select_default_state(struct device *dev)
+{
+ return 0;
+}
+static inline int pinctrl_pm_select_sleep_state(struct device *dev)
+{
+ return 0;
+}
+static inline int pinctrl_pm_select_idle_state(struct device *dev)
+{
+ return 0;
+}
+#endif
+
+#else /* !CONFIG_PINCTRL */
+
+static inline int pinctrl_gpio_request(unsigned gpio)
+{
+ return 0;
+}
+
+static inline void pinctrl_gpio_free(unsigned gpio)
+{
+}
+
+static inline int pinctrl_gpio_direction_input(unsigned gpio)
+{
+ return 0;
+}
+
+static inline int pinctrl_gpio_direction_output(unsigned gpio)
+{
+ return 0;
+}
+
+static inline int pinctrl_gpio_set_config(unsigned gpio, unsigned long config)
+{
+ return 0;
+}
+
+static inline struct pinctrl * __must_check pinctrl_get(struct device *dev)
+{
+ return NULL;
+}
+
+static inline void pinctrl_put(struct pinctrl *p)
+{
+}
+
+static inline struct pinctrl_state * __must_check pinctrl_lookup_state(
+ struct pinctrl *p,
+ const char *name)
+{
+ return NULL;
+}
+
+static inline int pinctrl_select_state(struct pinctrl *p,
+ struct pinctrl_state *s)
+{
+ return 0;
+}
+
+static inline struct pinctrl * __must_check devm_pinctrl_get(struct device *dev)
+{
+ return NULL;
+}
+
+static inline void devm_pinctrl_put(struct pinctrl *p)
+{
+}
+
+static inline int pinctrl_pm_select_default_state(struct device *dev)
+{
+ return 0;
+}
+
+static inline int pinctrl_pm_select_sleep_state(struct device *dev)
+{
+ return 0;
+}
+
+static inline int pinctrl_pm_select_idle_state(struct device *dev)
+{
+ return 0;
+}
+
+#endif /* CONFIG_PINCTRL */
+
+static inline struct pinctrl * __must_check pinctrl_get_select(
+ struct device *dev, const char *name)
+{
+ struct pinctrl *p;
+ struct pinctrl_state *s;
+ int ret;
+
+ p = pinctrl_get(dev);
+ if (IS_ERR(p))
+ return p;
+
+ s = pinctrl_lookup_state(p, name);
+ if (IS_ERR(s)) {
+ pinctrl_put(p);
+ return ERR_CAST(s);
+ }
+
+ ret = pinctrl_select_state(p, s);
+ if (ret < 0) {
+ pinctrl_put(p);
+ return ERR_PTR(ret);
+ }
+
+ return p;
+}
+
+static inline struct pinctrl * __must_check pinctrl_get_select_default(
+ struct device *dev)
+{
+ return pinctrl_get_select(dev, PINCTRL_STATE_DEFAULT);
+}
+
+static inline struct pinctrl * __must_check devm_pinctrl_get_select(
+ struct device *dev, const char *name)
+{
+ struct pinctrl *p;
+ struct pinctrl_state *s;
+ int ret;
+
+ p = devm_pinctrl_get(dev);
+ if (IS_ERR(p))
+ return p;
+
+ s = pinctrl_lookup_state(p, name);
+ if (IS_ERR(s)) {
+ devm_pinctrl_put(p);
+ return ERR_CAST(s);
+ }
+
+ ret = pinctrl_select_state(p, s);
+ if (ret < 0) {
+ devm_pinctrl_put(p);
+ return ERR_PTR(ret);
+ }
+
+ return p;
+}
+
+static inline struct pinctrl * __must_check devm_pinctrl_get_select_default(
+ struct device *dev)
+{
+ return devm_pinctrl_get_select(dev, PINCTRL_STATE_DEFAULT);
+}
+
+#endif /* __LINUX_PINCTRL_CONSUMER_H */