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/*
* Copyright (c) 2015, The Linux Foundation. All rights reserved.
*
* This software is licensed under the terms of the GNU General Public
* License version 2, as published by the Free Software Foundation, and
* may be copied, distributed, and modified under those terms.
*
* 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_CLK_ALPHA_PLL_H__
#define __QCOM_CLK_ALPHA_PLL_H__
#include <linux/clk-provider.h>
#include "clk-regmap.h"
/* Alpha PLL types */
enum {
CLK_ALPHA_PLL_TYPE_DEFAULT,
CLK_ALPHA_PLL_TYPE_MAX,
};
enum {
PLL_OFF_L_VAL,
PLL_OFF_ALPHA_VAL,
PLL_OFF_ALPHA_VAL_U,
PLL_OFF_USER_CTL,
PLL_OFF_USER_CTL_U,
PLL_OFF_CONFIG_CTL,
PLL_OFF_CONFIG_CTL_U,
PLL_OFF_TEST_CTL,
PLL_OFF_TEST_CTL_U,
PLL_OFF_STATUS,
PLL_OFF_MAX_REGS
};
extern const u8 clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_MAX][PLL_OFF_MAX_REGS];
struct pll_vco {
unsigned long min_freq;
unsigned long max_freq;
u32 val;
};
/**
* struct clk_alpha_pll - phase locked loop (PLL)
* @offset: base address of registers
* @vco_table: array of VCO settings
* @regs: alpha pll register map (see @clk_alpha_pll_regs)
* @clkr: regmap clock handle
*/
struct clk_alpha_pll {
u32 offset;
const u8 *regs;
const struct pll_vco *vco_table;
size_t num_vco;
#define SUPPORTS_OFFLINE_REQ BIT(0)
#define SUPPORTS_16BIT_ALPHA BIT(1)
#define SUPPORTS_FSM_MODE BIT(2)
u8 flags;
struct clk_regmap clkr;
};
/**
* struct clk_alpha_pll_postdiv - phase locked loop (PLL) post-divider
* @offset: base address of registers
* @regs: alpha pll register map (see @clk_alpha_pll_regs)
* @width: width of post-divider
* @clkr: regmap clock handle
*/
struct clk_alpha_pll_postdiv {
u32 offset;
u8 width;
const u8 *regs;
struct clk_regmap clkr;
};
struct alpha_pll_config {
u32 l;
u32 alpha;
u32 config_ctl_val;
u32 config_ctl_hi_val;
u32 main_output_mask;
u32 aux_output_mask;
u32 aux2_output_mask;
u32 early_output_mask;
u32 pre_div_val;
u32 pre_div_mask;
u32 post_div_val;
u32 post_div_mask;
u32 vco_val;
u32 vco_mask;
};
extern const struct clk_ops clk_alpha_pll_ops;
extern const struct clk_ops clk_alpha_pll_hwfsm_ops;
extern const struct clk_ops clk_alpha_pll_postdiv_ops;
void clk_alpha_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
const struct alpha_pll_config *config);
#endif
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