Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 34 insertions, 0 deletions

diff --git a/drivers/gpio/gpio-i8255.h b/drivers/gpio/gpio-i8255.h
new file mode 100644
index 0000000000..9dcf639b94
--- /dev/null
+++ b/drivers/gpio/gpio-i8255.h
@@ -0,0 +1,34 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright 2022 William Breathitt Gray */
+#ifndef _I8255_H_
+#define _I8255_H_
+
+struct device;
+struct irq_domain;
+struct regmap;
+
+#define i8255_volatile_regmap_range(_base) regmap_reg_range(_base, _base + 0x2)
+
+/**
+ * struct i8255_regmap_config - Configuration for the register map of an i8255
+ * @parent:	parent device
+ * @map:	regmap for the i8255
+ * @num_ppi:	number of i8255 Programmable Peripheral Interface
+ * @names:	(optional) array of names for gpios
+ * @domain:	(optional) IRQ domain if the controller is interrupt-capable
+ *
+ * Note: The regmap is expected to have cache enabled and i8255 control
+ * registers not marked as volatile.
+ */
+struct i8255_regmap_config {
+	struct device *parent;
+	struct regmap *map;
+	int num_ppi;
+	const char *const *names;
+	struct irq_domain *domain;
+};
+
+int devm_i8255_regmap_register(struct device *dev,
+			       const struct i8255_regmap_config *config);
+
+#endif /* _I8255_H_ */