summaryrefslogtreecommitdiffstats
path: root/drivers/pinctrl/intel/pinctrl-tangier.h
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/pinctrl/intel/pinctrl-tangier.h')
-rw-r--r--drivers/pinctrl/intel/pinctrl-tangier.h92
1 files changed, 92 insertions, 0 deletions
diff --git a/drivers/pinctrl/intel/pinctrl-tangier.h b/drivers/pinctrl/intel/pinctrl-tangier.h
new file mode 100644
index 0000000000..955cc967c0
--- /dev/null
+++ b/drivers/pinctrl/intel/pinctrl-tangier.h
@@ -0,0 +1,92 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Intel Tangier pinctrl functions
+ *
+ * Copyright (C) 2016, 2023 Intel Corporation
+ *
+ * Authors: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
+ * Raag Jadav <raag.jadav@intel.com>
+ */
+
+#ifndef PINCTRL_TANGIER_H
+#define PINCTRL_TANGIER_H
+
+#include <linux/spinlock_types.h>
+#include <linux/types.h>
+
+#include <linux/pinctrl/pinctrl.h>
+
+#include "pinctrl-intel.h"
+
+struct device;
+struct platform_device;
+
+#define TNG_FAMILY_NR 64
+#define TNG_FAMILY_LEN 0x400
+
+/**
+ * struct tng_family - Tangier pin family description
+ * @barno: MMIO BAR number where registers for this family reside
+ * @pin_base: Starting pin of pins in this family
+ * @npins: Number of pins in this family
+ * @protected: True if family is protected by access
+ * @regs: Family specific common registers
+ */
+struct tng_family {
+ unsigned int barno;
+ unsigned int pin_base;
+ size_t npins;
+ bool protected;
+ void __iomem *regs;
+};
+
+#define TNG_FAMILY(b, s, e) \
+ { \
+ .barno = (b), \
+ .pin_base = (s), \
+ .npins = (e) - (s) + 1, \
+ }
+
+#define TNG_FAMILY_PROTECTED(b, s, e) \
+ { \
+ .barno = (b), \
+ .pin_base = (s), \
+ .npins = (e) - (s) + 1, \
+ .protected = true, \
+ }
+
+/**
+ * struct tng_pinctrl - Tangier pinctrl private structure
+ * @dev: Pointer to the device structure
+ * @lock: Lock to serialize register access
+ * @pctldesc: Pin controller description
+ * @pctldev: Pointer to the pin controller device
+ * @families: Array of families this pinctrl handles
+ * @nfamilies: Number of families in the array
+ * @functions: Array of functions
+ * @nfunctions: Number of functions in the array
+ * @groups: Array of pin groups
+ * @ngroups: Number of groups in the array
+ * @pins: Array of pins this pinctrl controls
+ * @npins: Number of pins in the array
+ */
+struct tng_pinctrl {
+ struct device *dev;
+ raw_spinlock_t lock;
+ struct pinctrl_desc pctldesc;
+ struct pinctrl_dev *pctldev;
+
+ /* Pin controller configuration */
+ const struct tng_family *families;
+ size_t nfamilies;
+ const struct intel_function *functions;
+ size_t nfunctions;
+ const struct intel_pingroup *groups;
+ size_t ngroups;
+ const struct pinctrl_pin_desc *pins;
+ size_t npins;
+};
+
+int devm_tng_pinctrl_probe(struct platform_device *pdev);
+
+#endif /* PINCTRL_TANGIER_H */