drivers/clk/qcom/clk-alpha-pll.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /* Copyright (c) 2015, 2018, The Linux Foundation. All rights reserved. */
   3
   4 #ifndef __QCOM_CLK_ALPHA_PLL_H__
   5 #define __QCOM_CLK_ALPHA_PLL_H__
   6
   7 #include <linux/clk-provider.h>
   8 #include "clk-regmap.h"
   9
  10 /* Alpha PLL types */
  11 enum {
  12         CLK_ALPHA_PLL_TYPE_DEFAULT,
  13         CLK_ALPHA_PLL_TYPE_HUAYRA,
  14         CLK_ALPHA_PLL_TYPE_BRAMMO,
  15         CLK_ALPHA_PLL_TYPE_FABIA,
  16         CLK_ALPHA_PLL_TYPE_TRION,
  17         CLK_ALPHA_PLL_TYPE_MAX,
  18 };
  19
  20 enum {
  21         PLL_OFF_L_VAL,
  22         PLL_OFF_CAL_L_VAL,
  23         PLL_OFF_ALPHA_VAL,
  24         PLL_OFF_ALPHA_VAL_U,
  25         PLL_OFF_USER_CTL,
  26         PLL_OFF_USER_CTL_U,
  27         PLL_OFF_USER_CTL_U1,
  28         PLL_OFF_CONFIG_CTL,
  29         PLL_OFF_CONFIG_CTL_U,
  30         PLL_OFF_CONFIG_CTL_U1,
  31         PLL_OFF_TEST_CTL,
  32         PLL_OFF_TEST_CTL_U,
  33         PLL_OFF_STATUS,
  34         PLL_OFF_OPMODE,
  35         PLL_OFF_FRAC,
  36         PLL_OFF_CAL_VAL,
  37         PLL_OFF_MAX_REGS
  38 };
  39
  40 extern const u8 clk_alpha_pll_regs[CLK_ALPHA_PLL_TYPE_MAX][PLL_OFF_MAX_REGS];
  41
  42 struct pll_vco {
  43         unsigned long min_freq;
  44         unsigned long max_freq;
  45         u32 val;
  46 };
  47
  48 /**
  49  * struct clk_alpha_pll - phase locked loop (PLL)
  50  * @offset: base address of registers
  51  * @vco_table: array of VCO settings
  52  * @regs: alpha pll register map (see @clk_alpha_pll_regs)
  53  * @clkr: regmap clock handle
  54  */
  55 struct clk_alpha_pll {
  56         u32 offset;
  57         const u8 *regs;
  58
  59         const struct pll_vco *vco_table;
  60         size_t num_vco;
  61 #define SUPPORTS_OFFLINE_REQ    BIT(0)
  62 #define SUPPORTS_FSM_MODE       BIT(2)
  63 #define SUPPORTS_DYNAMIC_UPDATE BIT(3)
  64         u8 flags;
  65
  66         struct clk_regmap clkr;
  67 };
  68
  69 /**
  70  * struct clk_alpha_pll_postdiv - phase locked loop (PLL) post-divider
  71  * @offset: base address of registers
  72  * @regs: alpha pll register map (see @clk_alpha_pll_regs)
  73  * @width: width of post-divider
  74  * @post_div_shift: shift to differentiate between odd & even post-divider
  75  * @post_div_table: table with PLL odd and even post-divider settings
  76  * @num_post_div: Number of PLL post-divider settings
  77  *
  78  * @clkr: regmap clock handle
  79  */
  80 struct clk_alpha_pll_postdiv {
  81         u32 offset;
  82         u8 width;
  83         const u8 *regs;
  84
  85         struct clk_regmap clkr;
  86         int post_div_shift;
  87         const struct clk_div_table *post_div_table;
  88         size_t num_post_div;
  89 };
  90
  91 struct alpha_pll_config {
  92         u32 l;
  93         u32 alpha;
  94         u32 alpha_hi;
  95         u32 config_ctl_val;
  96         u32 config_ctl_hi_val;
  97         u32 main_output_mask;
  98         u32 aux_output_mask;
  99         u32 aux2_output_mask;
 100         u32 early_output_mask;
 101         u32 alpha_en_mask;
 102         u32 alpha_mode_mask;
 103         u32 pre_div_val;
 104         u32 pre_div_mask;
 105         u32 post_div_val;
 106         u32 post_div_mask;
 107         u32 vco_val;
 108         u32 vco_mask;
 109 };
 110
 111 extern const struct clk_ops clk_alpha_pll_ops;
 112 extern const struct clk_ops clk_alpha_pll_hwfsm_ops;
 113 extern const struct clk_ops clk_alpha_pll_postdiv_ops;
 114 extern const struct clk_ops clk_alpha_pll_huayra_ops;
 115 extern const struct clk_ops clk_alpha_pll_postdiv_ro_ops;
 116
 117 extern const struct clk_ops clk_alpha_pll_fabia_ops;
 118 extern const struct clk_ops clk_alpha_pll_fixed_fabia_ops;
 119 extern const struct clk_ops clk_alpha_pll_postdiv_fabia_ops;
 120
 121 void clk_alpha_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
 122                              const struct alpha_pll_config *config);
 123 void clk_fabia_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
 124                                 const struct alpha_pll_config *config);
 125 extern const struct clk_ops clk_trion_fixed_pll_ops;
 126 extern const struct clk_ops clk_trion_pll_postdiv_ops;
 127
 128 #endif