Adding upstream version 6.6.15.upstream/6.6.15

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

1 files changed, 192 insertions, 0 deletions

diff --git a/drivers/clk/qcom/clk-rcg.h b/drivers/clk/qcom/clk-rcg.h
new file mode 100644
index 0000000000..e6d84c8c79
--- /dev/null
+++ b/drivers/clk/qcom/clk-rcg.h
@@ -0,0 +1,192 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/* Copyright (c) 2013, 2018, The Linux Foundation. All rights reserved. */
+
+#ifndef __QCOM_CLK_RCG_H__
+#define __QCOM_CLK_RCG_H__
+
+#include <linux/clk-provider.h>
+#include "clk-regmap.h"
+
+#define F(f, s, h, m, n) { (f), (s), (2 * (h) - 1), (m), (n) }
+
+struct freq_tbl {
+	unsigned long freq;
+	u8 src;
+	u8 pre_div;
+	u16 m;
+	u16 n;
+};
+
+/**
+ * struct mn - M/N:D counter
+ * @mnctr_en_bit: bit to enable mn counter
+ * @mnctr_reset_bit: bit to assert mn counter reset
+ * @mnctr_mode_shift: lowest bit of mn counter mode field
+ * @n_val_shift: lowest bit of n value field
+ * @m_val_shift: lowest bit of m value field
+ * @width: number of bits in m/n/d values
+ * @reset_in_cc: true if the mnctr_reset_bit is in the CC register
+ */
+struct mn {
+	u8		mnctr_en_bit;
+	u8		mnctr_reset_bit;
+	u8		mnctr_mode_shift;
+#define MNCTR_MODE_DUAL 0x2
+#define MNCTR_MODE_MASK 0x3
+	u8		n_val_shift;
+	u8		m_val_shift;
+	u8		width;
+	bool		reset_in_cc;
+};
+
+/**
+ * struct pre_div - pre-divider
+ * @pre_div_shift: lowest bit of pre divider field
+ * @pre_div_width: number of bits in predivider
+ */
+struct pre_div {
+	u8		pre_div_shift;
+	u8		pre_div_width;
+};
+
+/**
+ * struct src_sel - source selector
+ * @src_sel_shift: lowest bit of source selection field
+ * @parent_map: map from software's parent index to hardware's src_sel field
+ */
+struct src_sel {
+	u8		src_sel_shift;
+#define SRC_SEL_MASK	0x7
+	const struct parent_map	*parent_map;
+};
+
+/**
+ * struct clk_rcg - root clock generator
+ *
+ * @ns_reg: NS register
+ * @md_reg: MD register
+ * @mn: mn counter
+ * @p: pre divider
+ * @s: source selector
+ * @freq_tbl: frequency table
+ * @clkr: regmap clock handle
+ * @lock: register lock
+ */
+struct clk_rcg {
+	u32		ns_reg;
+	u32		md_reg;
+
+	struct mn	mn;
+	struct pre_div	p;
+	struct src_sel	s;
+
+	const struct freq_tbl	*freq_tbl;
+
+	struct clk_regmap	clkr;
+};
+
+extern const struct clk_ops clk_rcg_ops;
+extern const struct clk_ops clk_rcg_floor_ops;
+extern const struct clk_ops clk_rcg_bypass_ops;
+extern const struct clk_ops clk_rcg_bypass2_ops;
+extern const struct clk_ops clk_rcg_pixel_ops;
+extern const struct clk_ops clk_rcg_esc_ops;
+extern const struct clk_ops clk_rcg_lcc_ops;
+
+#define to_clk_rcg(_hw) container_of(to_clk_regmap(_hw), struct clk_rcg, clkr)
+
+/**
+ * struct clk_dyn_rcg - root clock generator with glitch free mux
+ *
+ * @mux_sel_bit: bit to switch glitch free mux
+ * @ns_reg: NS0 and NS1 register
+ * @md_reg: MD0 and MD1 register
+ * @bank_reg: register to XOR @mux_sel_bit into to switch glitch free mux
+ * @mn: mn counter (banked)
+ * @s: source selector (banked)
+ * @freq_tbl: frequency table
+ * @clkr: regmap clock handle
+ * @lock: register lock
+ */
+struct clk_dyn_rcg {
+	u32	ns_reg[2];
+	u32	md_reg[2];
+	u32	bank_reg;
+
+	u8	mux_sel_bit;
+
+	struct mn	mn[2];
+	struct pre_div	p[2];
+	struct src_sel	s[2];
+
+	const struct freq_tbl *freq_tbl;
+
+	struct clk_regmap clkr;
+};
+
+extern const struct clk_ops clk_dyn_rcg_ops;
+
+#define to_clk_dyn_rcg(_hw) \
+	container_of(to_clk_regmap(_hw), struct clk_dyn_rcg, clkr)
+
+/**
+ * struct clk_rcg2 - root clock generator
+ *
+ * @cmd_rcgr: corresponds to *_CMD_RCGR
+ * @mnd_width: number of bits in m/n/d values
+ * @hid_width: number of bits in half integer divider
+ * @safe_src_index: safe src index value
+ * @parent_map: map from software's parent index to hardware's src_sel field
+ * @freq_tbl: frequency table
+ * @clkr: regmap clock handle
+ * @cfg_off: defines the cfg register offset from the CMD_RCGR + CFG_REG
+ * @parked_cfg: cached value of the CFG register for parked RCGs
+ * @hw_clk_ctrl: whether to enable hardware clock control
+ */
+struct clk_rcg2 {
+	u32			cmd_rcgr;
+	u8			mnd_width;
+	u8			hid_width;
+	u8			safe_src_index;
+	const struct parent_map	*parent_map;
+	const struct freq_tbl	*freq_tbl;
+	struct clk_regmap	clkr;
+	u8			cfg_off;
+	u32			parked_cfg;
+	bool			hw_clk_ctrl;
+};
+
+#define to_clk_rcg2(_hw) container_of(to_clk_regmap(_hw), struct clk_rcg2, clkr)
+
+struct clk_rcg2_gfx3d {
+	u8 div;
+	struct clk_rcg2 rcg;
+	struct clk_hw **hws;
+};
+
+#define to_clk_rcg2_gfx3d(_hw) \
+	container_of(to_clk_rcg2(_hw), struct clk_rcg2_gfx3d, rcg)
+
+extern const struct clk_ops clk_rcg2_ops;
+extern const struct clk_ops clk_rcg2_floor_ops;
+extern const struct clk_ops clk_rcg2_mux_closest_ops;
+extern const struct clk_ops clk_edp_pixel_ops;
+extern const struct clk_ops clk_byte_ops;
+extern const struct clk_ops clk_byte2_ops;
+extern const struct clk_ops clk_pixel_ops;
+extern const struct clk_ops clk_gfx3d_ops;
+extern const struct clk_ops clk_rcg2_shared_ops;
+extern const struct clk_ops clk_dp_ops;
+
+struct clk_rcg_dfs_data {
+	struct clk_rcg2 *rcg;
+	struct clk_init_data *init;
+};
+
+#define DEFINE_RCG_DFS(r) \
+	{ .rcg = &r, .init = &r##_init }
+
+extern int qcom_cc_register_rcg_dfs(struct regmap *regmap,
+				    const struct clk_rcg_dfs_data *rcgs,
+				    size_t len);
+#endif