v4.19.13 snapshot.
diff --git a/drivers/clk/qcom/gdsc.h b/drivers/clk/qcom/gdsc.h
new file mode 100644
index 0000000..bd1f2c7
--- /dev/null
+++ b/drivers/clk/qcom/gdsc.h
@@ -0,0 +1,85 @@
+/*
+ * Copyright (c) 2015, 2017-2018, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ */
+
+#ifndef __QCOM_GDSC_H__
+#define __QCOM_GDSC_H__
+
+#include <linux/err.h>
+#include <linux/pm_domain.h>
+
+struct regmap;
+struct reset_controller_dev;
+
+/**
+ * struct gdsc - Globally Distributed Switch Controller
+ * @pd: generic power domain
+ * @regmap: regmap for MMIO accesses
+ * @gdscr: gsdc control register
+ * @gds_hw_ctrl: gds_hw_ctrl register
+ * @cxcs: offsets of branch registers to toggle mem/periph bits in
+ * @cxc_count: number of @cxcs
+ * @pwrsts: Possible powerdomain power states
+ * @resets: ids of resets associated with this gdsc
+ * @reset_count: number of @resets
+ * @rcdev: reset controller
+ */
+struct gdsc {
+ struct generic_pm_domain pd;
+ struct generic_pm_domain *parent;
+ struct regmap *regmap;
+ unsigned int gdscr;
+ unsigned int gds_hw_ctrl;
+ unsigned int clamp_io_ctrl;
+ unsigned int *cxcs;
+ unsigned int cxc_count;
+ const u8 pwrsts;
+/* Powerdomain allowable state bitfields */
+#define PWRSTS_OFF BIT(0)
+#define PWRSTS_RET BIT(1)
+#define PWRSTS_ON BIT(2)
+#define PWRSTS_OFF_ON (PWRSTS_OFF | PWRSTS_ON)
+#define PWRSTS_RET_ON (PWRSTS_RET | PWRSTS_ON)
+ const u8 flags;
+#define VOTABLE BIT(0)
+#define CLAMP_IO BIT(1)
+#define HW_CTRL BIT(2)
+#define SW_RESET BIT(3)
+#define AON_RESET BIT(4)
+#define POLL_CFG_GDSCR BIT(5)
+#define ALWAYS_ON BIT(6)
+ struct reset_controller_dev *rcdev;
+ unsigned int *resets;
+ unsigned int reset_count;
+};
+
+struct gdsc_desc {
+ struct device *dev;
+ struct gdsc **scs;
+ size_t num;
+};
+
+#ifdef CONFIG_QCOM_GDSC
+int gdsc_register(struct gdsc_desc *desc, struct reset_controller_dev *,
+ struct regmap *);
+void gdsc_unregister(struct gdsc_desc *desc);
+#else
+static inline int gdsc_register(struct gdsc_desc *desc,
+ struct reset_controller_dev *rcdev,
+ struct regmap *r)
+{
+ return -ENOSYS;
+}
+
+static inline void gdsc_unregister(struct gdsc_desc *desc) {};
+#endif /* CONFIG_QCOM_GDSC */
+#endif /* __QCOM_GDSC_H__ */