Adding upstream version 4.19.249.upstream/4.19.249upstream

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

1 files changed, 83 insertions, 0 deletions

diff --git a/drivers/clk/actions/owl-factor.h b/drivers/clk/actions/owl-factor.h
new file mode 100644
index 000000000..f1a7ffe89
--- /dev/null
+++ b/drivers/clk/actions/owl-factor.h
@@ -0,0 +1,83 @@
+// SPDX-License-Identifier: GPL-2.0+
+//
+// OWL factor clock driver
+//
+// Copyright (c) 2014 Actions Semi Inc.
+// Author: David Liu <liuwei@actions-semi.com>
+//
+// Copyright (c) 2018 Linaro Ltd.
+// Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+
+#ifndef _OWL_FACTOR_H_
+#define _OWL_FACTOR_H_
+
+#include "owl-common.h"
+
+struct clk_factor_table {
+	unsigned int		val;
+	unsigned int		mul;
+	unsigned int		div;
+};
+
+struct owl_factor_hw {
+	u32			reg;
+	u8			shift;
+	u8			width;
+	u8			fct_flags;
+	struct clk_factor_table	*table;
+};
+
+struct owl_factor {
+	struct owl_factor_hw	factor_hw;
+	struct owl_clk_common	common;
+};
+
+#define OWL_FACTOR_HW(_reg, _shift, _width, _fct_flags, _table)		\
+	{								\
+		.reg		= _reg,					\
+		.shift		= _shift,				\
+		.width		= _width,				\
+		.fct_flags	= _fct_flags,				\
+		.table		= _table,				\
+	}
+
+#define OWL_FACTOR(_struct, _name, _parent, _reg,			\
+		   _shift, _width, _table, _fct_flags, _flags)		\
+	struct owl_factor _struct = {					\
+		.factor_hw = OWL_FACTOR_HW(_reg, _shift,		\
+					   _width, _fct_flags, _table),	\
+		.common = {						\
+			.regmap		= NULL,				\
+			.hw.init	= CLK_HW_INIT(_name,		\
+						      _parent,		\
+						      &owl_factor_ops,	\
+						      _flags),		\
+		},							\
+	}
+
+#define div_mask(d) ((1 << ((d)->width)) - 1)
+
+static inline struct owl_factor *hw_to_owl_factor(const struct clk_hw *hw)
+{
+	struct owl_clk_common *common = hw_to_owl_clk_common(hw);
+
+	return container_of(common, struct owl_factor, common);
+}
+
+long owl_factor_helper_round_rate(struct owl_clk_common *common,
+				const struct owl_factor_hw *factor_hw,
+				unsigned long rate,
+				unsigned long *parent_rate);
+
+unsigned long owl_factor_helper_recalc_rate(struct owl_clk_common *common,
+					 const struct owl_factor_hw *factor_hw,
+					 unsigned long parent_rate);
+
+int owl_factor_helper_set_rate(const struct owl_clk_common *common,
+				const struct owl_factor_hw *factor_hw,
+				unsigned long rate,
+				unsigned long parent_rate);
+
+extern const struct clk_ops owl_factor_ops;
+
+#endif /* _OWL_FACTOR_H_ */