diff options
Diffstat (limited to 'drivers/clk/qcom/clk-alpha-pll.c')
| -rw-r--r-- | drivers/clk/qcom/clk-alpha-pll.c | 1293 |
1 files changed, 1185 insertions, 108 deletions
diff --git a/drivers/clk/qcom/clk-alpha-pll.c b/drivers/clk/qcom/clk-alpha-pll.c index 4406cf609aae..6aeba40358c1 100644 --- a/drivers/clk/qcom/clk-alpha-pll.c +++ b/drivers/clk/qcom/clk-alpha-pll.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 /* * Copyright (c) 2015, 2018, The Linux Foundation. All rights reserved. - * Copyright (c) 2021, Qualcomm Innovation Center, Inc. All rights reserved. + * Copyright (c) 2021, 2023-2024, Qualcomm Innovation Center, Inc. All rights reserved. */ #include <linux/kernel.h> @@ -27,6 +27,7 @@ # define PLL_VOTE_FSM_RESET BIT(21) # define PLL_UPDATE BIT(22) # define PLL_UPDATE_BYPASS BIT(23) +# define PLL_FSM_LEGACY_MODE BIT(24) # define PLL_OFFLINE_ACK BIT(28) # define ALPHA_PLL_ACK_LATCH BIT(29) # define PLL_ACTIVE_FLAG BIT(30) @@ -39,7 +40,8 @@ #define PLL_USER_CTL(p) ((p)->offset + (p)->regs[PLL_OFF_USER_CTL]) # define PLL_POST_DIV_SHIFT 8 -# define PLL_POST_DIV_MASK(p) GENMASK((p)->width, 0) +# define PLL_POST_DIV_MASK(p) GENMASK((p)->width ? (p)->width - 1 : 3, 0) +# define PLL_ALPHA_MSB BIT(15) # define PLL_ALPHA_EN BIT(24) # define PLL_ALPHA_MODE BIT(25) # define PLL_VCO_SHIFT 20 @@ -51,15 +53,20 @@ #define PLL_CONFIG_CTL(p) ((p)->offset + (p)->regs[PLL_OFF_CONFIG_CTL]) #define PLL_CONFIG_CTL_U(p) ((p)->offset + (p)->regs[PLL_OFF_CONFIG_CTL_U]) #define PLL_CONFIG_CTL_U1(p) ((p)->offset + (p)->regs[PLL_OFF_CONFIG_CTL_U1]) +#define PLL_CONFIG_CTL_U2(p) ((p)->offset + (p)->regs[PLL_OFF_CONFIG_CTL_U2]) #define PLL_TEST_CTL(p) ((p)->offset + (p)->regs[PLL_OFF_TEST_CTL]) #define PLL_TEST_CTL_U(p) ((p)->offset + (p)->regs[PLL_OFF_TEST_CTL_U]) #define PLL_TEST_CTL_U1(p) ((p)->offset + (p)->regs[PLL_OFF_TEST_CTL_U1]) +#define PLL_TEST_CTL_U2(p) ((p)->offset + (p)->regs[PLL_OFF_TEST_CTL_U2]) +#define PLL_TEST_CTL_U3(p) ((p)->offset + (p)->regs[PLL_OFF_TEST_CTL_U3]) #define PLL_STATUS(p) ((p)->offset + (p)->regs[PLL_OFF_STATUS]) #define PLL_OPMODE(p) ((p)->offset + (p)->regs[PLL_OFF_OPMODE]) #define PLL_FRAC(p) ((p)->offset + (p)->regs[PLL_OFF_FRAC]) +#define GET_PLL_TYPE(pll) (((pll)->regs - clk_alpha_pll_regs[0]) / PLL_OFF_MAX_REGS) + const u8 clk_alpha_pll_regs[][PLL_OFF_MAX_REGS] = { - [CLK_ALPHA_PLL_TYPE_DEFAULT] = { + [CLK_ALPHA_PLL_TYPE_DEFAULT] = { [PLL_OFF_L_VAL] = 0x04, [PLL_OFF_ALPHA_VAL] = 0x08, [PLL_OFF_ALPHA_VAL_U] = 0x0c, @@ -70,7 +77,7 @@ const u8 clk_alpha_pll_regs[][PLL_OFF_MAX_REGS] = { [PLL_OFF_TEST_CTL_U] = 0x20, [PLL_OFF_STATUS] = 0x24, }, - [CLK_ALPHA_PLL_TYPE_HUAYRA] = { + [CLK_ALPHA_PLL_TYPE_HUAYRA] = { [PLL_OFF_L_VAL] = 0x04, [PLL_OFF_ALPHA_VAL] = 0x08, [PLL_OFF_USER_CTL] = 0x10, @@ -80,7 +87,30 @@ const u8 clk_alpha_pll_regs[][PLL_OFF_MAX_REGS] = { [PLL_OFF_TEST_CTL_U] = 0x20, [PLL_OFF_STATUS] = 0x24, }, - [CLK_ALPHA_PLL_TYPE_BRAMMO] = { + [CLK_ALPHA_PLL_TYPE_HUAYRA_APSS] = { + [PLL_OFF_L_VAL] = 0x08, + [PLL_OFF_ALPHA_VAL] = 0x10, + [PLL_OFF_USER_CTL] = 0x18, + [PLL_OFF_CONFIG_CTL] = 0x20, + [PLL_OFF_CONFIG_CTL_U] = 0x24, + [PLL_OFF_STATUS] = 0x28, + [PLL_OFF_TEST_CTL] = 0x30, + [PLL_OFF_TEST_CTL_U] = 0x34, + }, + [CLK_ALPHA_PLL_TYPE_HUAYRA_2290] = { + [PLL_OFF_L_VAL] = 0x04, + [PLL_OFF_ALPHA_VAL] = 0x08, + [PLL_OFF_USER_CTL] = 0x0c, + [PLL_OFF_CONFIG_CTL] = 0x10, + [PLL_OFF_CONFIG_CTL_U] = 0x14, + [PLL_OFF_CONFIG_CTL_U1] = 0x18, + [PLL_OFF_TEST_CTL] = 0x1c, + [PLL_OFF_TEST_CTL_U] = 0x20, + [PLL_OFF_TEST_CTL_U1] = 0x24, + [PLL_OFF_OPMODE] = 0x28, + [PLL_OFF_STATUS] = 0x38, + }, + [CLK_ALPHA_PLL_TYPE_BRAMMO] = { [PLL_OFF_L_VAL] = 0x04, [PLL_OFF_ALPHA_VAL] = 0x08, [PLL_OFF_ALPHA_VAL_U] = 0x0c, @@ -89,7 +119,7 @@ const u8 clk_alpha_pll_regs[][PLL_OFF_MAX_REGS] = { [PLL_OFF_TEST_CTL] = 0x1c, [PLL_OFF_STATUS] = 0x24, }, - [CLK_ALPHA_PLL_TYPE_FABIA] = { + [CLK_ALPHA_PLL_TYPE_FABIA] = { [PLL_OFF_L_VAL] = 0x04, [PLL_OFF_USER_CTL] = 0x0c, [PLL_OFF_USER_CTL_U] = 0x10, @@ -117,7 +147,7 @@ const u8 clk_alpha_pll_regs[][PLL_OFF_MAX_REGS] = { [PLL_OFF_OPMODE] = 0x38, [PLL_OFF_ALPHA_VAL] = 0x40, }, - [CLK_ALPHA_PLL_TYPE_AGERA] = { + [CLK_ALPHA_PLL_TYPE_AGERA] = { [PLL_OFF_L_VAL] = 0x04, [PLL_OFF_ALPHA_VAL] = 0x08, [PLL_OFF_USER_CTL] = 0x0c, @@ -127,7 +157,7 @@ const u8 clk_alpha_pll_regs[][PLL_OFF_MAX_REGS] = { [PLL_OFF_TEST_CTL_U] = 0x1c, [PLL_OFF_STATUS] = 0x2c, }, - [CLK_ALPHA_PLL_TYPE_ZONDA] = { + [CLK_ALPHA_PLL_TYPE_ZONDA] = { [PLL_OFF_L_VAL] = 0x04, [PLL_OFF_ALPHA_VAL] = 0x08, [PLL_OFF_USER_CTL] = 0x0c, @@ -154,6 +184,134 @@ const u8 clk_alpha_pll_regs[][PLL_OFF_MAX_REGS] = { [PLL_OFF_TEST_CTL_U] = 0x30, [PLL_OFF_TEST_CTL_U1] = 0x34, }, + [CLK_ALPHA_PLL_TYPE_LUCID_OLE] = { + [PLL_OFF_OPMODE] = 0x04, + [PLL_OFF_STATE] = 0x08, + [PLL_OFF_STATUS] = 0x0c, + [PLL_OFF_L_VAL] = 0x10, + [PLL_OFF_ALPHA_VAL] = 0x14, + [PLL_OFF_USER_CTL] = 0x18, + [PLL_OFF_USER_CTL_U] = 0x1c, + [PLL_OFF_CONFIG_CTL] = 0x20, + [PLL_OFF_CONFIG_CTL_U] = 0x24, + [PLL_OFF_CONFIG_CTL_U1] = 0x28, + [PLL_OFF_TEST_CTL] = 0x2c, + [PLL_OFF_TEST_CTL_U] = 0x30, + [PLL_OFF_TEST_CTL_U1] = 0x34, + [PLL_OFF_TEST_CTL_U2] = 0x38, + }, + [CLK_ALPHA_PLL_TYPE_PONGO_ELU] = { + [PLL_OFF_OPMODE] = 0x04, + [PLL_OFF_STATE] = 0x08, + [PLL_OFF_STATUS] = 0x0c, + [PLL_OFF_L_VAL] = 0x10, + [PLL_OFF_USER_CTL] = 0x14, + [PLL_OFF_USER_CTL_U] = 0x18, + [PLL_OFF_CONFIG_CTL] = 0x1c, + [PLL_OFF_CONFIG_CTL_U] = 0x20, + [PLL_OFF_CONFIG_CTL_U1] = 0x24, + [PLL_OFF_CONFIG_CTL_U2] = 0x28, + [PLL_OFF_TEST_CTL] = 0x2c, + [PLL_OFF_TEST_CTL_U] = 0x30, + [PLL_OFF_TEST_CTL_U1] = 0x34, + [PLL_OFF_TEST_CTL_U2] = 0x38, + [PLL_OFF_TEST_CTL_U3] = 0x3c, + }, + [CLK_ALPHA_PLL_TYPE_TAYCAN_ELU] = { + [PLL_OFF_OPMODE] = 0x04, + [PLL_OFF_STATE] = 0x08, + [PLL_OFF_STATUS] = 0x0c, + [PLL_OFF_L_VAL] = 0x10, + [PLL_OFF_ALPHA_VAL] = 0x14, + [PLL_OFF_USER_CTL] = 0x18, + [PLL_OFF_USER_CTL_U] = 0x1c, + [PLL_OFF_CONFIG_CTL] = 0x20, + [PLL_OFF_CONFIG_CTL_U] = 0x24, + [PLL_OFF_CONFIG_CTL_U1] = 0x28, + [PLL_OFF_TEST_CTL] = 0x2c, + [PLL_OFF_TEST_CTL_U] = 0x30, + }, + [CLK_ALPHA_PLL_TYPE_RIVIAN_EVO] = { + [PLL_OFF_OPMODE] = 0x04, + [PLL_OFF_STATUS] = 0x0c, + [PLL_OFF_L_VAL] = 0x10, + [PLL_OFF_USER_CTL] = 0x14, + [PLL_OFF_USER_CTL_U] = 0x18, + [PLL_OFF_CONFIG_CTL] = 0x1c, + [PLL_OFF_CONFIG_CTL_U] = 0x20, + [PLL_OFF_CONFIG_CTL_U1] = 0x24, + [PLL_OFF_TEST_CTL] = 0x28, + [PLL_OFF_TEST_CTL_U] = 0x2c, + }, + [CLK_ALPHA_PLL_TYPE_DEFAULT_EVO] = { + [PLL_OFF_L_VAL] = 0x04, + [PLL_OFF_ALPHA_VAL] = 0x08, + [PLL_OFF_ALPHA_VAL_U] = 0x0c, + [PLL_OFF_TEST_CTL] = 0x10, + [PLL_OFF_TEST_CTL_U] = 0x14, + [PLL_OFF_USER_CTL] = 0x18, + [PLL_OFF_USER_CTL_U] = 0x1c, + [PLL_OFF_CONFIG_CTL] = 0x20, + [PLL_OFF_STATUS] = 0x24, + }, + [CLK_ALPHA_PLL_TYPE_BRAMMO_EVO] = { + [PLL_OFF_L_VAL] = 0x04, + [PLL_OFF_ALPHA_VAL] = 0x08, + [PLL_OFF_ALPHA_VAL_U] = 0x0c, + [PLL_OFF_TEST_CTL] = 0x10, + [PLL_OFF_TEST_CTL_U] = 0x14, + [PLL_OFF_USER_CTL] = 0x18, + [PLL_OFF_CONFIG_CTL] = 0x1C, + [PLL_OFF_STATUS] = 0x20, + }, + [CLK_ALPHA_PLL_TYPE_STROMER] = { + [PLL_OFF_L_VAL] = 0x08, + [PLL_OFF_ALPHA_VAL] = 0x10, + [PLL_OFF_ALPHA_VAL_U] = 0x14, + [PLL_OFF_USER_CTL] = 0x18, + [PLL_OFF_USER_CTL_U] = 0x1c, + [PLL_OFF_CONFIG_CTL] = 0x20, + [PLL_OFF_STATUS] = 0x28, + [PLL_OFF_TEST_CTL] = 0x30, + [PLL_OFF_TEST_CTL_U] = 0x34, + }, + [CLK_ALPHA_PLL_TYPE_STROMER_PLUS] = { + [PLL_OFF_L_VAL] = 0x04, + [PLL_OFF_USER_CTL] = 0x08, + [PLL_OFF_USER_CTL_U] = 0x0c, + [PLL_OFF_CONFIG_CTL] = 0x10, + [PLL_OFF_TEST_CTL] = 0x14, + [PLL_OFF_TEST_CTL_U] = 0x18, + [PLL_OFF_STATUS] = 0x1c, + [PLL_OFF_ALPHA_VAL] = 0x24, + [PLL_OFF_ALPHA_VAL_U] = 0x28, + }, + [CLK_ALPHA_PLL_TYPE_ZONDA_OLE] = { + [PLL_OFF_L_VAL] = 0x04, + [PLL_OFF_ALPHA_VAL] = 0x08, + [PLL_OFF_USER_CTL] = 0x0c, + [PLL_OFF_USER_CTL_U] = 0x10, + [PLL_OFF_CONFIG_CTL] = 0x14, + [PLL_OFF_CONFIG_CTL_U] = 0x18, + [PLL_OFF_CONFIG_CTL_U1] = 0x1c, + [PLL_OFF_CONFIG_CTL_U2] = 0x20, + [PLL_OFF_TEST_CTL] = 0x24, + [PLL_OFF_TEST_CTL_U] = 0x28, + [PLL_OFF_TEST_CTL_U1] = 0x2c, + [PLL_OFF_OPMODE] = 0x30, + [PLL_OFF_STATUS] = 0x3c, + }, + [CLK_ALPHA_PLL_TYPE_NSS_HUAYRA] = { + [PLL_OFF_L_VAL] = 0x04, + [PLL_OFF_ALPHA_VAL] = 0x08, + [PLL_OFF_TEST_CTL] = 0x0c, + [PLL_OFF_TEST_CTL_U] = 0x10, + [PLL_OFF_USER_CTL] = 0x14, + [PLL_OFF_CONFIG_CTL] = 0x18, + [PLL_OFF_CONFIG_CTL_U] = 0x1c, + [PLL_OFF_STATUS] = 0x20, + }, + }; EXPORT_SYMBOL_GPL(clk_alpha_pll_regs); @@ -165,6 +323,8 @@ EXPORT_SYMBOL_GPL(clk_alpha_pll_regs); #define ALPHA_BITWIDTH 32U #define ALPHA_SHIFT(w) min(w, ALPHA_BITWIDTH) +#define ALPHA_PLL_STATUS_REG_SHIFT 8 + #define PLL_HUAYRA_M_WIDTH 8 #define PLL_HUAYRA_M_SHIFT 8 #define PLL_HUAYRA_M_MASK 0xff @@ -191,8 +351,17 @@ EXPORT_SYMBOL_GPL(clk_alpha_pll_regs); #define LUCID_5LPE_ENABLE_VOTE_RUN BIT(21) /* LUCID EVO PLL specific settings and offsets */ +#define LUCID_EVO_PCAL_NOT_DONE BIT(8) #define LUCID_EVO_ENABLE_VOTE_RUN BIT(25) #define LUCID_EVO_PLL_L_VAL_MASK GENMASK(15, 0) +#define LUCID_EVO_PLL_CAL_L_VAL_SHIFT 16 +#define LUCID_OLE_PLL_RINGOSC_CAL_L_VAL_SHIFT 24 + +/* PONGO ELU PLL specific setting and offsets */ +#define PONGO_PLL_OUT_MASK GENMASK(1, 0) +#define PONGO_PLL_L_VAL_MASK GENMASK(11, 0) +#define PONGO_XO_PRESENT BIT(10) +#define PONGO_CLOCK_SELECT BIT(12) /* ZONDA PLL specific */ #define ZONDA_PLL_OUT_MASK 0xf @@ -223,7 +392,8 @@ static int wait_for_pll(struct clk_alpha_pll *pll, u32 mask, bool inverse, if (ret) return ret; - for (count = 200; count > 0; count--) { + /* Pongo PLLs using a 32KHz reference can take upwards of 1500us to lock. */ + for (count = 1500; count > 0; count--) { ret = regmap_read(pll->clkr.regmap, PLL_MODE(pll), &val); if (ret) return ret; @@ -303,9 +473,27 @@ void clk_alpha_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap, mask |= config->pre_div_mask; mask |= config->post_div_mask; mask |= config->vco_mask; + mask |= config->alpha_en_mask; + mask |= config->alpha_mode_mask; regmap_update_bits(regmap, PLL_USER_CTL(pll), mask, val); + if (config->test_ctl_mask) + regmap_update_bits(regmap, PLL_TEST_CTL(pll), + config->test_ctl_mask, + config->test_ctl_val); + else + clk_alpha_pll_write_config(regmap, PLL_TEST_CTL(pll), + config->test_ctl_val); + + if (config->test_ctl_hi_mask) + regmap_update_bits(regmap, PLL_TEST_CTL_U(pll), + config->test_ctl_hi_mask, + config->test_ctl_hi_val); + else + clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U(pll), + config->test_ctl_hi_val); + if (pll->flags & SUPPORTS_FSM_MODE) qcom_pll_set_fsm_mode(regmap, PLL_MODE(pll), 6, 0); } @@ -523,14 +711,19 @@ clk_alpha_pll_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) struct clk_alpha_pll *pll = to_clk_alpha_pll(hw); u32 alpha_width = pll_alpha_width(pll); - regmap_read(pll->clkr.regmap, PLL_L_VAL(pll), &l); + if (regmap_read(pll->clkr.regmap, PLL_L_VAL(pll), &l)) + return 0; + + if (regmap_read(pll->clkr.regmap, PLL_USER_CTL(pll), &ctl)) + return 0; - regmap_read(pll->clkr.regmap, PLL_USER_CTL(pll), &ctl); if (ctl & PLL_ALPHA_EN) { - regmap_read(pll->clkr.regmap, PLL_ALPHA_VAL(pll), &low); + if (regmap_read(pll->clkr.regmap, PLL_ALPHA_VAL(pll), &low)) + return 0; if (alpha_width > 32) { - regmap_read(pll->clkr.regmap, PLL_ALPHA_VAL_U(pll), - &high); + if (regmap_read(pll->clkr.regmap, PLL_ALPHA_VAL_U(pll), + &high)) + return 0; a = (u64)high << 32 | low; } else { a = low & GENMASK(alpha_width - 1, 0); @@ -597,6 +790,29 @@ static int clk_alpha_pll_update_latch(struct clk_alpha_pll *pll, return __clk_alpha_pll_update_latch(pll); } +static void clk_alpha_pll_update_configs(struct clk_alpha_pll *pll, const struct pll_vco *vco, + u32 l, u64 alpha, u32 alpha_width, bool alpha_en) +{ + regmap_write(pll->clkr.regmap, PLL_L_VAL(pll), l); + + if (alpha_width > ALPHA_BITWIDTH) + alpha <<= alpha_width - ALPHA_BITWIDTH; + + if (alpha_width > 32) + regmap_write(pll->clkr.regmap, PLL_ALPHA_VAL_U(pll), upper_32_bits(alpha)); + + regmap_write(pll->clkr.regmap, PLL_ALPHA_VAL(pll), lower_32_bits(alpha)); + + if (vco) { + regmap_update_bits(pll->clkr.regmap, PLL_USER_CTL(pll), + PLL_VCO_MASK << PLL_VCO_SHIFT, + vco->val << PLL_VCO_SHIFT); + } + + if (alpha_en) + regmap_set_bits(pll->clkr.regmap, PLL_USER_CTL(pll), PLL_ALPHA_EN); +} + static int __clk_alpha_pll_set_rate(struct clk_hw *hw, unsigned long rate, unsigned long prate, int (*is_enabled)(struct clk_hw *)) @@ -614,24 +830,7 @@ static int __clk_alpha_pll_set_rate(struct clk_hw *hw, unsigned long rate, return -EINVAL; } - regmap_write(pll->clkr.regmap, PLL_L_VAL(pll), l); - - if (alpha_width > ALPHA_BITWIDTH) - a <<= alpha_width - ALPHA_BITWIDTH; - - if (alpha_width > 32) - regmap_write(pll->clkr.regmap, PLL_ALPHA_VAL_U(pll), a >> 32); - - regmap_write(pll->clkr.regmap, PLL_ALPHA_VAL(pll), a); - - if (vco) { - regmap_update_bits(pll->clkr.regmap, PLL_USER_CTL(pll), - PLL_VCO_MASK << PLL_VCO_SHIFT, - vco->val << PLL_VCO_SHIFT); - } - - regmap_update_bits(pll->clkr.regmap, PLL_USER_CTL(pll), - PLL_ALPHA_EN, PLL_ALPHA_EN); + clk_alpha_pll_update_configs(pll, vco, l, a, alpha_width, true); return clk_alpha_pll_update_latch(pll, is_enabled); } @@ -650,23 +849,60 @@ static int clk_alpha_pll_hwfsm_set_rate(struct clk_hw *hw, unsigned long rate, clk_alpha_pll_hwfsm_is_enabled); } -static long clk_alpha_pll_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *prate) +static int clk_alpha_pll_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct clk_alpha_pll *pll = to_clk_alpha_pll(hw); u32 l, alpha_width = pll_alpha_width(pll); u64 a; unsigned long min_freq, max_freq; - rate = alpha_pll_round_rate(rate, *prate, &l, &a, alpha_width); - if (!pll->vco_table || alpha_pll_find_vco(pll, rate)) - return rate; + req->rate = alpha_pll_round_rate(req->rate, req->best_parent_rate, &l, + &a, alpha_width); + if (!pll->vco_table || alpha_pll_find_vco(pll, req->rate)) + return 0; min_freq = pll->vco_table[0].min_freq; max_freq = pll->vco_table[pll->num_vco - 1].max_freq; - return clamp(rate, min_freq, max_freq); + req->rate = clamp(req->rate, min_freq, max_freq); + + return 0; +} + +void clk_huayra_2290_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap, + const struct alpha_pll_config *config) +{ + u32 val; + + clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL(pll), config->config_ctl_val); + clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL_U(pll), config->config_ctl_hi_val); + clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL_U1(pll), config->config_ctl_hi1_val); + clk_alpha_pll_write_config(regmap, PLL_TEST_CTL(pll), config->test_ctl_val); + clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U(pll), config->test_ctl_hi_val); + clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U1(pll), config->test_ctl_hi1_val); + clk_alpha_pll_write_config(regmap, PLL_L_VAL(pll), config->l); + clk_alpha_pll_write_config(regmap, PLL_ALPHA_VAL(pll), config->alpha); + clk_alpha_pll_write_config(regmap, PLL_USER_CTL(pll), config->user_ctl_val); + + /* Set PLL_BYPASSNL */ + regmap_update_bits(regmap, PLL_MODE(pll), PLL_BYPASSNL, PLL_BYPASSNL); + regmap_read(regmap, PLL_MODE(pll), &val); + + /* Wait 5 us between setting BYPASS and deasserting reset */ + udelay(5); + + /* Take PLL out from reset state */ + regmap_update_bits(regmap, PLL_MODE(pll), PLL_RESET_N, PLL_RESET_N); + regmap_read(regmap, PLL_MODE(pll), &val); + + /* Wait 50us for PLL_LOCK_DET bit to go high */ + usleep_range(50, 55); + + /* Enable PLL output */ + regmap_update_bits(regmap, PLL_MODE(pll), PLL_OUTCTRL, PLL_OUTCTRL); } +EXPORT_SYMBOL_GPL(clk_huayra_2290_pll_configure); static unsigned long alpha_huayra_pll_calc_rate(u64 prate, u32 l, u32 a) @@ -722,8 +958,11 @@ alpha_pll_huayra_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) struct clk_alpha_pll *pll = to_clk_alpha_pll(hw); u32 l, alpha = 0, ctl, alpha_m, alpha_n; - regmap_read(pll->clkr.regmap, PLL_L_VAL(pll), &l); - regmap_read(pll->clkr.regmap, PLL_USER_CTL(pll), &ctl); + if (regmap_read(pll->clkr.regmap, PLL_L_VAL(pll), &l)) + return 0; + + if (regmap_read(pll->clkr.regmap, PLL_USER_CTL(pll), &ctl)) + return 0; if (ctl & PLL_ALPHA_EN) { regmap_read(pll->clkr.regmap, PLL_ALPHA_VAL(pll), &alpha); @@ -812,12 +1051,15 @@ static int alpha_pll_huayra_set_rate(struct clk_hw *hw, unsigned long rate, return 0; } -static long alpha_pll_huayra_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *prate) +static int alpha_pll_huayra_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { u32 l, a; - return alpha_huayra_pll_round_rate(rate, *prate, &l, &a); + req->rate = alpha_huayra_pll_round_rate(req->rate, + req->best_parent_rate, &l, &a); + + return 0; } static int trion_pll_is_enabled(struct clk_alpha_pll *pll, @@ -917,8 +1159,11 @@ clk_trion_pll_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) struct clk_alpha_pll *pll = to_clk_alpha_pll(hw); u32 l, frac, alpha_width = pll_alpha_width(pll); - regmap_read(pll->clkr.regmap, PLL_L_VAL(pll), &l); - regmap_read(pll->clkr.regmap, PLL_ALPHA_VAL(pll), &frac); + if (regmap_read(pll->clkr.regmap, PLL_L_VAL(pll), &l)) + return 0; + + if (regmap_read(pll->clkr.regmap, PLL_ALPHA_VAL(pll), &frac)) + return 0; return alpha_pll_calc_rate(parent_rate, l, frac, alpha_width); } @@ -936,7 +1181,7 @@ const struct clk_ops clk_alpha_pll_ops = { .disable = clk_alpha_pll_disable, .is_enabled = clk_alpha_pll_is_enabled, .recalc_rate = clk_alpha_pll_recalc_rate, - .round_rate = clk_alpha_pll_round_rate, + .determine_rate = clk_alpha_pll_determine_rate, .set_rate = clk_alpha_pll_set_rate, }; EXPORT_SYMBOL_GPL(clk_alpha_pll_ops); @@ -946,7 +1191,7 @@ const struct clk_ops clk_alpha_pll_huayra_ops = { .disable = clk_alpha_pll_disable, .is_enabled = clk_alpha_pll_is_enabled, .recalc_rate = alpha_pll_huayra_recalc_rate, - .round_rate = alpha_pll_huayra_round_rate, + .determine_rate = alpha_pll_huayra_determine_rate, .set_rate = alpha_pll_huayra_set_rate, }; EXPORT_SYMBOL_GPL(clk_alpha_pll_huayra_ops); @@ -956,7 +1201,7 @@ const struct clk_ops clk_alpha_pll_hwfsm_ops = { .disable = clk_alpha_pll_hwfsm_disable, .is_enabled = clk_alpha_pll_hwfsm_is_enabled, .recalc_rate = clk_alpha_pll_recalc_rate, - .round_rate = clk_alpha_pll_round_rate, + .determine_rate = clk_alpha_pll_determine_rate, .set_rate = clk_alpha_pll_hwfsm_set_rate, }; EXPORT_SYMBOL_GPL(clk_alpha_pll_hwfsm_ops); @@ -966,7 +1211,7 @@ const struct clk_ops clk_alpha_pll_fixed_trion_ops = { .disable = clk_trion_pll_disable, .is_enabled = clk_trion_pll_is_enabled, .recalc_rate = clk_trion_pll_recalc_rate, - .round_rate = clk_alpha_pll_round_rate, + .determine_rate = clk_alpha_pll_determine_rate, }; EXPORT_SYMBOL_GPL(clk_alpha_pll_fixed_trion_ops); @@ -976,7 +1221,8 @@ clk_alpha_pll_postdiv_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) struct clk_alpha_pll_postdiv *pll = to_clk_alpha_pll_postdiv(hw); u32 ctl; - regmap_read(pll->clkr.regmap, PLL_USER_CTL(pll), &ctl); + if (regmap_read(pll->clkr.regmap, PLL_USER_CTL(pll), &ctl)) + return 0; ctl >>= PLL_POST_DIV_SHIFT; ctl &= PLL_POST_DIV_MASK(pll); @@ -1000,9 +1246,8 @@ static const struct clk_div_table clk_alpha_2bit_div_table[] = { { } }; -static long -clk_alpha_pll_postdiv_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *prate) +static int clk_alpha_pll_postdiv_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct clk_alpha_pll_postdiv *pll = to_clk_alpha_pll_postdiv(hw); const struct clk_div_table *table; @@ -1012,13 +1257,15 @@ clk_alpha_pll_postdiv_round_rate(struct clk_hw *hw, unsigned long rate, else table = clk_alpha_div_table; - return divider_round_rate(hw, rate, prate, table, - pll->width, CLK_DIVIDER_POWER_OF_TWO); + req->rate = divider_round_rate(hw, req->rate, &req->best_parent_rate, + table, pll->width, + CLK_DIVIDER_POWER_OF_TWO); + + return 0; } -static long -clk_alpha_pll_postdiv_round_ro_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *prate) +static int clk_alpha_pll_postdiv_ro_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct clk_alpha_pll_postdiv *pll = to_clk_alpha_pll_postdiv(hw); u32 ctl, div; @@ -1030,9 +1277,12 @@ clk_alpha_pll_postdiv_round_ro_rate(struct clk_hw *hw, unsigned long rate, div = 1 << fls(ctl); if (clk_hw_get_flags(hw) & CLK_SET_RATE_PARENT) - *prate = clk_hw_round_rate(clk_hw_get_parent(hw), div * rate); + req->best_parent_rate = clk_hw_round_rate(clk_hw_get_parent(hw), + div * req->rate); + + req->rate = DIV_ROUND_UP_ULL((u64)req->best_parent_rate, div); - return DIV_ROUND_UP_ULL((u64)*prate, div); + return 0; } static int clk_alpha_pll_postdiv_set_rate(struct clk_hw *hw, unsigned long rate, @@ -1051,13 +1301,13 @@ static int clk_alpha_pll_postdiv_set_rate(struct clk_hw *hw, unsigned long rate, const struct clk_ops clk_alpha_pll_postdiv_ops = { .recalc_rate = clk_alpha_pll_postdiv_recalc_rate, - .round_rate = clk_alpha_pll_postdiv_round_rate, + .determine_rate = clk_alpha_pll_postdiv_determine_rate, .set_rate = clk_alpha_pll_postdiv_set_rate, }; EXPORT_SYMBOL_GPL(clk_alpha_pll_postdiv_ops); const struct clk_ops clk_alpha_pll_postdiv_ro_ops = { - .round_rate = clk_alpha_pll_postdiv_round_ro_rate, + .determine_rate = clk_alpha_pll_postdiv_ro_determine_rate, .recalc_rate = clk_alpha_pll_postdiv_recalc_rate, }; EXPORT_SYMBOL_GPL(clk_alpha_pll_postdiv_ro_ops); @@ -1088,6 +1338,10 @@ void clk_fabia_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap, regmap_update_bits(regmap, PLL_USER_CTL(pll), mask, val); } + if (pll->flags & SUPPORTS_FSM_LEGACY_MODE) + regmap_update_bits(regmap, PLL_MODE(pll), PLL_FSM_LEGACY_MODE, + PLL_FSM_LEGACY_MODE); + regmap_update_bits(regmap, PLL_MODE(pll), PLL_UPDATE_BYPASS, PLL_UPDATE_BYPASS); @@ -1188,8 +1442,11 @@ static unsigned long alpha_pll_fabia_recalc_rate(struct clk_hw *hw, struct clk_alpha_pll *pll = to_clk_alpha_pll(hw); u32 l, frac, alpha_width = pll_alpha_width(pll); - regmap_read(pll->clkr.regmap, PLL_L_VAL(pll), &l); - regmap_read(pll->clkr.regmap, PLL_FRAC(pll), &frac); + if (regmap_read(pll->clkr.regmap, PLL_L_VAL(pll), &l)) + return 0; + + if (regmap_read(pll->clkr.regmap, PLL_FRAC(pll), &frac)) + return 0; return alpha_pll_calc_rate(parent_rate, l, frac, alpha_width); } @@ -1295,7 +1552,7 @@ const struct clk_ops clk_alpha_pll_fabia_ops = { .is_enabled = clk_alpha_pll_is_enabled, .set_rate = alpha_pll_fabia_set_rate, .recalc_rate = alpha_pll_fabia_recalc_rate, - .round_rate = clk_alpha_pll_round_rate, + .determine_rate = clk_alpha_pll_determine_rate, }; EXPORT_SYMBOL_GPL(clk_alpha_pll_fabia_ops); @@ -1304,7 +1561,7 @@ const struct clk_ops clk_alpha_pll_fixed_fabia_ops = { .disable = alpha_pll_fabia_disable, .is_enabled = clk_alpha_pll_is_enabled, .recalc_rate = alpha_pll_fabia_recalc_rate, - .round_rate = clk_alpha_pll_round_rate, + .determine_rate = clk_alpha_pll_determine_rate, }; EXPORT_SYMBOL_GPL(clk_alpha_pll_fixed_fabia_ops); @@ -1339,7 +1596,8 @@ clk_trion_pll_postdiv_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) struct regmap *regmap = pll->clkr.regmap; u32 i, div = 1, val; - regmap_read(regmap, PLL_USER_CTL(pll), &val); + if (regmap_read(regmap, PLL_USER_CTL(pll), &val)) + return 0; val >>= pll->post_div_shift; val &= PLL_POST_DIV_MASK(pll); @@ -1354,14 +1612,16 @@ clk_trion_pll_postdiv_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) return (parent_rate / div); } -static long -clk_trion_pll_postdiv_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *prate) +static int clk_trion_pll_postdiv_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct clk_alpha_pll_postdiv *pll = to_clk_alpha_pll_postdiv(hw); - return divider_round_rate(hw, rate, prate, pll->post_div_table, - pll->width, CLK_DIVIDER_ROUND_CLOSEST); + req->rate = divider_round_rate(hw, req->rate, &req->best_parent_rate, + pll->post_div_table, + pll->width, CLK_DIVIDER_ROUND_CLOSEST); + + return 0; }; static int @@ -1381,24 +1641,27 @@ clk_trion_pll_postdiv_set_rate(struct clk_hw *hw, unsigned long rate, } return regmap_update_bits(regmap, PLL_USER_CTL(pll), - PLL_POST_DIV_MASK(pll) << PLL_POST_DIV_SHIFT, - val << PLL_POST_DIV_SHIFT); + PLL_POST_DIV_MASK(pll) << pll->post_div_shift, + val << pll->post_div_shift); } const struct clk_ops clk_alpha_pll_postdiv_trion_ops = { .recalc_rate = clk_trion_pll_postdiv_recalc_rate, - .round_rate = clk_trion_pll_postdiv_round_rate, + .determine_rate = clk_trion_pll_postdiv_determine_rate, .set_rate = clk_trion_pll_postdiv_set_rate, }; EXPORT_SYMBOL_GPL(clk_alpha_pll_postdiv_trion_ops); -static long clk_alpha_pll_postdiv_fabia_round_rate(struct clk_hw *hw, - unsigned long rate, unsigned long *prate) +static int clk_alpha_pll_postdiv_fabia_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) { struct clk_alpha_pll_postdiv *pll = to_clk_alpha_pll_postdiv(hw); - return divider_round_rate(hw, rate, prate, pll->post_div_table, - pll->width, CLK_DIVIDER_ROUND_CLOSEST); + req->rate = divider_round_rate(hw, req->rate, &req->best_parent_rate, + pll->post_div_table, + pll->width, CLK_DIVIDER_ROUND_CLOSEST); + + return 0; } static int clk_alpha_pll_postdiv_fabia_set_rate(struct clk_hw *hw, @@ -1433,13 +1696,13 @@ static int clk_alpha_pll_postdiv_fabia_set_rate(struct clk_hw *hw, const struct clk_ops clk_alpha_pll_postdiv_fabia_ops = { .recalc_rate = clk_alpha_pll_postdiv_fabia_recalc_rate, - .round_rate = clk_alpha_pll_postdiv_fabia_round_rate, + .determine_rate = clk_alpha_pll_postdiv_fabia_determine_rate, .set_rate = clk_alpha_pll_postdiv_fabia_set_rate, }; EXPORT_SYMBOL_GPL(clk_alpha_pll_postdiv_fabia_ops); /** - * clk_lucid_pll_configure - configure the lucid pll + * clk_trion_pll_configure - configure the trion pll * * @pll: clk alpha pll * @regmap: register map @@ -1541,7 +1804,7 @@ static int __alpha_pll_trion_set_rate(struct clk_hw *hw, unsigned long rate, if (ret < 0) return ret; - regmap_write(pll->clkr.regmap, PLL_L_VAL(pll), l); + regmap_update_bits(pll->clkr.regmap, PLL_L_VAL(pll), LUCID_EVO_PLL_L_VAL_MASK, l); regmap_write(pll->clkr.regmap, PLL_ALPHA_VAL(pll), a); /* Latch the PLL input */ @@ -1585,7 +1848,7 @@ const struct clk_ops clk_alpha_pll_trion_ops = { .disable = clk_trion_pll_disable, .is_enabled = clk_trion_pll_is_enabled, .recalc_rate = clk_trion_pll_recalc_rate, - .round_rate = clk_alpha_pll_round_rate, + .determine_rate = clk_alpha_pll_determine_rate, .set_rate = alpha_pll_trion_set_rate, }; EXPORT_SYMBOL_GPL(clk_alpha_pll_trion_ops); @@ -1596,14 +1859,14 @@ const struct clk_ops clk_alpha_pll_lucid_ops = { .disable = clk_trion_pll_disable, .is_enabled = clk_trion_pll_is_enabled, .recalc_rate = clk_trion_pll_recalc_rate, - .round_rate = clk_alpha_pll_round_rate, + .determine_rate = clk_alpha_pll_determine_rate, .set_rate = alpha_pll_trion_set_rate, }; EXPORT_SYMBOL_GPL(clk_alpha_pll_lucid_ops); const struct clk_ops clk_alpha_pll_postdiv_lucid_ops = { .recalc_rate = clk_alpha_pll_postdiv_fabia_recalc_rate, - .round_rate = clk_alpha_pll_postdiv_fabia_round_rate, + .determine_rate = clk_alpha_pll_postdiv_fabia_determine_rate, .set_rate = clk_alpha_pll_postdiv_fabia_set_rate, }; EXPORT_SYMBOL_GPL(clk_alpha_pll_postdiv_lucid_ops); @@ -1655,11 +1918,63 @@ const struct clk_ops clk_alpha_pll_agera_ops = { .disable = clk_alpha_pll_disable, .is_enabled = clk_alpha_pll_is_enabled, .recalc_rate = alpha_pll_fabia_recalc_rate, - .round_rate = clk_alpha_pll_round_rate, + .determine_rate = clk_alpha_pll_determine_rate, .set_rate = clk_alpha_pll_agera_set_rate, }; EXPORT_SYMBOL_GPL(clk_alpha_pll_agera_ops); +/** + * clk_lucid_5lpe_pll_configure - configure the lucid 5lpe pll + * + * @pll: clk alpha pll + * @regmap: register map + * @config: configuration to apply for pll + */ +void clk_lucid_5lpe_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap, + const struct alpha_pll_config *config) +{ + /* + * If the bootloader left the PLL enabled it's likely that there are + * RCGs that will lock up if we disable the PLL below. + */ + if (trion_pll_is_enabled(pll, regmap)) { + pr_debug("Lucid 5LPE PLL is already enabled, skipping configuration\n"); + return; + } + + clk_alpha_pll_write_config(regmap, PLL_L_VAL(pll), config->l); + regmap_write(regmap, PLL_CAL_L_VAL(pll), TRION_PLL_CAL_VAL); + clk_alpha_pll_write_config(regmap, PLL_ALPHA_VAL(pll), config->alpha); + clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL(pll), + config->config_ctl_val); + clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL_U(pll), + config->config_ctl_hi_val); + clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL_U1(pll), + config->config_ctl_hi1_val); + clk_alpha_pll_write_config(regmap, PLL_USER_CTL(pll), + config->user_ctl_val); + clk_alpha_pll_write_config(regmap, PLL_USER_CTL_U(pll), + config->user_ctl_hi_val); + clk_alpha_pll_write_config(regmap, PLL_USER_CTL_U1(pll), + config->user_ctl_hi1_val); + clk_alpha_pll_write_config(regmap, PLL_TEST_CTL(pll), + config->test_ctl_val); + clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U(pll), + config->test_ctl_hi_val); + clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U1(pll), + config->test_ctl_hi1_val); + + /* Disable PLL output */ + regmap_update_bits(regmap, PLL_MODE(pll), PLL_OUTCTRL, 0); + + /* Set operation mode to OFF */ + regmap_write(regmap, PLL_OPMODE(pll), PLL_STANDBY); + + /* Place the PLL in STANDBY mode */ + regmap_update_bits(regmap, PLL_MODE(pll), PLL_RESET_N, PLL_RESET_N); +} +EXPORT_SYMBOL_GPL(clk_lucid_5lpe_pll_configure); + static int alpha_pll_lucid_5lpe_enable(struct clk_hw *hw) { struct clk_alpha_pll *pll = to_clk_alpha_pll(hw); @@ -1679,9 +1994,8 @@ static int alpha_pll_lucid_5lpe_enable(struct clk_hw *hw) } /* Check if PLL is already enabled, return if enabled */ - ret = trion_pll_is_enabled(pll, pll->clkr.regmap); - if (ret < 0) - return ret; + if (trion_pll_is_enabled(pll, pll->clkr.regmap)) + return 0; ret = regmap_update_bits(pll->clkr.regmap, PLL_MODE(pll), PLL_RESET_N, PLL_RESET_N); if (ret) @@ -1820,26 +2134,26 @@ const struct clk_ops clk_alpha_pll_lucid_5lpe_ops = { .disable = alpha_pll_lucid_5lpe_disable, .is_enabled = clk_trion_pll_is_enabled, .recalc_rate = clk_trion_pll_recalc_rate, - .round_rate = clk_alpha_pll_round_rate, + .determine_rate = clk_alpha_pll_determine_rate, .set_rate = alpha_pll_lucid_5lpe_set_rate, }; -EXPORT_SYMBOL(clk_alpha_pll_lucid_5lpe_ops); +EXPORT_SYMBOL_GPL(clk_alpha_pll_lucid_5lpe_ops); const struct clk_ops clk_alpha_pll_fixed_lucid_5lpe_ops = { .enable = alpha_pll_lucid_5lpe_enable, .disable = alpha_pll_lucid_5lpe_disable, .is_enabled = clk_trion_pll_is_enabled, .recalc_rate = clk_trion_pll_recalc_rate, - .round_rate = clk_alpha_pll_round_rate, + .determine_rate = clk_alpha_pll_determine_rate, }; -EXPORT_SYMBOL(clk_alpha_pll_fixed_lucid_5lpe_ops); +EXPORT_SYMBOL_GPL(clk_alpha_pll_fixed_lucid_5lpe_ops); const struct clk_ops clk_alpha_pll_postdiv_lucid_5lpe_ops = { .recalc_rate = clk_alpha_pll_postdiv_fabia_recalc_rate, - .round_rate = clk_alpha_pll_postdiv_fabia_round_rate, + .determine_rate = clk_alpha_pll_postdiv_fabia_determine_rate, .set_rate = clk_lucid_5lpe_pll_postdiv_set_rate, }; -EXPORT_SYMBOL(clk_alpha_pll_postdiv_lucid_5lpe_ops); +EXPORT_SYMBOL_GPL(clk_alpha_pll_postdiv_lucid_5lpe_ops); void clk_zonda_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap, const struct alpha_pll_config *config) @@ -1946,6 +2260,16 @@ static void clk_zonda_pll_disable(struct clk_hw *hw) regmap_write(regmap, PLL_OPMODE(pll), 0x0); } +static void zonda_pll_adjust_l_val(unsigned long rate, unsigned long prate, u32 *l) +{ + u64 remainder, quotient; + + quotient = rate; + remainder = do_div(quotient, prate); + + *l = rate + (u32)(remainder * 2 >= prate); +} + static int clk_zonda_pll_set_rate(struct clk_hw *hw, unsigned long rate, unsigned long prate) { @@ -1962,9 +2286,15 @@ static int clk_zonda_pll_set_rate(struct clk_hw *hw, unsigned long rate, if (ret < 0) return ret; + if (a & PLL_ALPHA_MSB) + zonda_pll_adjust_l_val(rate, prate, &l); + regmap_write(pll->clkr.regmap, PLL_ALPHA_VAL(pll), a); regmap_write(pll->clkr.regmap, PLL_L_VAL(pll), l); + if (!clk_hw_is_enabled(hw)) + return 0; + /* Wait before polling for the frequency latch */ udelay(5); @@ -1989,10 +2319,74 @@ const struct clk_ops clk_alpha_pll_zonda_ops = { .disable = clk_zonda_pll_disable, .is_enabled = clk_trion_pll_is_enabled, .recalc_rate = clk_trion_pll_recalc_rate, - .round_rate = clk_alpha_pll_round_rate, + .determine_rate = clk_alpha_pll_determine_rate, .set_rate = clk_zonda_pll_set_rate, }; -EXPORT_SYMBOL(clk_alpha_pll_zonda_ops); +EXPORT_SYMBOL_GPL(clk_alpha_pll_zonda_ops); + +void clk_lucid_evo_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap, + const struct alpha_pll_config *config) +{ + u32 lval = config->l; + + /* + * If the bootloader left the PLL enabled it's likely that there are + * RCGs that will lock up if we disable the PLL below. + */ + if (trion_pll_is_enabled(pll, regmap)) { + pr_debug("Lucid Evo PLL is already enabled, skipping configuration\n"); + return; + } + + lval |= TRION_PLL_CAL_VAL << LUCID_EVO_PLL_CAL_L_VAL_SHIFT; + clk_alpha_pll_write_config(regmap, PLL_L_VAL(pll), lval); + clk_alpha_pll_write_config(regmap, PLL_ALPHA_VAL(pll), config->alpha); + clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL(pll), config->config_ctl_val); + clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL_U(pll), config->config_ctl_hi_val); + clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL_U1(pll), config->config_ctl_hi1_val); + clk_alpha_pll_write_config(regmap, PLL_USER_CTL(pll), config->user_ctl_val); + clk_alpha_pll_write_config(regmap, PLL_USER_CTL_U(pll), config->user_ctl_hi_val); + clk_alpha_pll_write_config(regmap, PLL_TEST_CTL(pll), config->test_ctl_val); + clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U(pll), config->test_ctl_hi_val); + clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U1(pll), config->test_ctl_hi1_val); + clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U2(pll), config->test_ctl_hi2_val); + + /* Disable PLL output */ + regmap_update_bits(regmap, PLL_MODE(pll), PLL_OUTCTRL, 0); + + /* Set operation mode to STANDBY and de-assert the reset */ + regmap_write(regmap, PLL_OPMODE(pll), PLL_STANDBY); + regmap_update_bits(regmap, PLL_MODE(pll), PLL_RESET_N, PLL_RESET_N); +} +EXPORT_SYMBOL_GPL(clk_lucid_evo_pll_configure); + +void clk_lucid_ole_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap, + const struct alpha_pll_config *config) +{ + u32 lval = config->l; + + lval |= TRION_PLL_CAL_VAL << LUCID_EVO_PLL_CAL_L_VAL_SHIFT; + lval |= TRION_PLL_CAL_VAL << LUCID_OLE_PLL_RINGOSC_CAL_L_VAL_SHIFT; + clk_alpha_pll_write_config(regmap, PLL_L_VAL(pll), lval); + clk_alpha_pll_write_config(regmap, PLL_ALPHA_VAL(pll), config->alpha); + clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL(pll), config->config_ctl_val); + clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL_U(pll), config->config_ctl_hi_val); + clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL_U1(pll), config->config_ctl_hi1_val); + clk_alpha_pll_write_config(regmap, PLL_USER_CTL(pll), config->user_ctl_val); + clk_alpha_pll_write_config(regmap, PLL_USER_CTL_U(pll), config->user_ctl_hi_val); + clk_alpha_pll_write_config(regmap, PLL_TEST_CTL(pll), config->test_ctl_val); + clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U(pll), config->test_ctl_hi_val); + clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U1(pll), config->test_ctl_hi1_val); + clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U2(pll), config->test_ctl_hi2_val); + + /* Disable PLL output */ + regmap_update_bits(regmap, PLL_MODE(pll), PLL_OUTCTRL, 0); + + /* Set operation mode to STANDBY and de-assert the reset */ + regmap_write(regmap, PLL_OPMODE(pll), PLL_STANDBY); + regmap_update_bits(regmap, PLL_MODE(pll), PLL_RESET_N, PLL_RESET_N); +} +EXPORT_SYMBOL_GPL(clk_lucid_ole_pll_configure); static int alpha_pll_lucid_evo_enable(struct clk_hw *hw) { @@ -2014,13 +2408,8 @@ static int alpha_pll_lucid_evo_enable(struct clk_hw *hw) } /* Check if PLL is already enabled */ - ret = trion_pll_is_enabled(pll, regmap); - if (ret < 0) { - return ret; - } else if (ret) { - pr_warn("%s PLL is already enabled\n", clk_hw_get_name(&pll->clkr.hw)); + if (trion_pll_is_enabled(pll, regmap)) return 0; - } ret = regmap_update_bits(regmap, PLL_MODE(pll), PLL_RESET_N, PLL_RESET_N); if (ret) @@ -2048,7 +2437,7 @@ static int alpha_pll_lucid_evo_enable(struct clk_hw *hw) return ret; } -static void alpha_pll_lucid_evo_disable(struct clk_hw *hw) +static void _alpha_pll_lucid_evo_disable(struct clk_hw *hw, bool reset) { struct clk_alpha_pll *pll = to_clk_alpha_pll(hw); struct regmap *regmap = pll->clkr.regmap; @@ -2077,6 +2466,54 @@ static void alpha_pll_lucid_evo_disable(struct clk_hw *hw) /* Place the PLL mode in STANDBY */ regmap_write(regmap, PLL_OPMODE(pll), PLL_STANDBY); + + if (reset) + regmap_update_bits(regmap, PLL_MODE(pll), PLL_RESET_N, 0); +} + +static int _alpha_pll_lucid_evo_prepare(struct clk_hw *hw, bool reset) +{ + struct clk_alpha_pll *pll = to_clk_alpha_pll(hw); + struct clk_hw *p; + u32 val = 0; + int ret; + + /* Return early if calibration is not needed. */ + regmap_read(pll->clkr.regmap, PLL_MODE(pll), &val); + if (!(val & LUCID_EVO_PCAL_NOT_DONE)) + return 0; + + p = clk_hw_get_parent(hw); + if (!p) + return -EINVAL; + + ret = alpha_pll_lucid_evo_enable(hw); + if (ret) + return ret; + + _alpha_pll_lucid_evo_disable(hw, reset); + + return 0; +} + +static void alpha_pll_lucid_evo_disable(struct clk_hw *hw) +{ + _alpha_pll_lucid_evo_disable(hw, false); +} + +static int alpha_pll_lucid_evo_prepare(struct clk_hw *hw) +{ + return _alpha_pll_lucid_evo_prepare(hw, false); +} + +static void alpha_pll_reset_lucid_evo_disable(struct clk_hw *hw) +{ + _alpha_pll_lucid_evo_disable(hw, true); +} + +static int alpha_pll_reset_lucid_evo_prepare(struct clk_hw *hw) +{ + return _alpha_pll_lucid_evo_prepare(hw, true); } static unsigned long alpha_pll_lucid_evo_recalc_rate(struct clk_hw *hw, @@ -2086,9 +2523,12 @@ static unsigned long alpha_pll_lucid_evo_recalc_rate(struct clk_hw *hw, struct regmap *regmap = pll->clkr.regmap; u32 l, frac; - regmap_read(regmap, PLL_L_VAL(pll), &l); + if (regmap_read(regmap, PLL_L_VAL(pll), &l)) + return 0; l &= LUCID_EVO_PLL_L_VAL_MASK; - regmap_read(regmap, PLL_ALPHA_VAL(pll), &frac); + + if (regmap_read(regmap, PLL_ALPHA_VAL(pll), &frac)) + return 0; return alpha_pll_calc_rate(parent_rate, l, frac, pll_alpha_width(pll)); } @@ -2104,13 +2544,650 @@ const struct clk_ops clk_alpha_pll_fixed_lucid_evo_ops = { .disable = alpha_pll_lucid_evo_disable, .is_enabled = clk_trion_pll_is_enabled, .recalc_rate = alpha_pll_lucid_evo_recalc_rate, - .round_rate = clk_alpha_pll_round_rate, + .determine_rate = clk_alpha_pll_determine_rate, }; EXPORT_SYMBOL_GPL(clk_alpha_pll_fixed_lucid_evo_ops); const struct clk_ops clk_alpha_pll_postdiv_lucid_evo_ops = { .recalc_rate = clk_alpha_pll_postdiv_fabia_recalc_rate, - .round_rate = clk_alpha_pll_postdiv_fabia_round_rate, + .determine_rate = clk_alpha_pll_postdiv_fabia_determine_rate, .set_rate = clk_lucid_evo_pll_postdiv_set_rate, }; EXPORT_SYMBOL_GPL(clk_alpha_pll_postdiv_lucid_evo_ops); + +const struct clk_ops clk_alpha_pll_lucid_evo_ops = { + .prepare = alpha_pll_lucid_evo_prepare, + .enable = alpha_pll_lucid_evo_enable, + .disable = alpha_pll_lucid_evo_disable, + .is_enabled = clk_trion_pll_is_enabled, + .recalc_rate = alpha_pll_lucid_evo_recalc_rate, + .determine_rate = clk_alpha_pll_determine_rate, + .set_rate = alpha_pll_lucid_5lpe_set_rate, +}; +EXPORT_SYMBOL_GPL(clk_alpha_pll_lucid_evo_ops); + +const struct clk_ops clk_alpha_pll_reset_lucid_evo_ops = { + .prepare = alpha_pll_reset_lucid_evo_prepare, + .enable = alpha_pll_lucid_evo_enable, + .disable = alpha_pll_reset_lucid_evo_disable, + .is_enabled = clk_trion_pll_is_enabled, + .recalc_rate = alpha_pll_lucid_evo_recalc_rate, + .determine_rate = clk_alpha_pll_determine_rate, + .set_rate = alpha_pll_lucid_5lpe_set_rate, +}; +EXPORT_SYMBOL_GPL(clk_alpha_pll_reset_lucid_evo_ops); + +static int alpha_pll_pongo_elu_prepare(struct clk_hw *hw) +{ + struct clk_alpha_pll *pll = to_clk_alpha_pll(hw); + struct regmap *regmap = pll->clkr.regmap; + int ret; + + /* Enable PLL intially to one-time calibrate against XO. */ + regmap_write(regmap, PLL_OPMODE(pll), PLL_RUN); + regmap_update_bits(regmap, PLL_MODE(pll), PLL_RESET_N, PLL_RESET_N); + regmap_update_bits(regmap, PLL_MODE(pll), PONGO_XO_PRESENT, PONGO_XO_PRESENT); + + /* Set regmap for wait_for_pll() */ + pll->clkr.regmap = regmap; + ret = wait_for_pll_enable_lock(pll); + if (ret) { + /* Reverse calibration - disable PLL output */ + regmap_update_bits(regmap, PLL_MODE(pll), PLL_OUTCTRL, 0); + return ret; + } + + /* Disable PLL after one-time calibration. */ + regmap_write(regmap, PLL_OPMODE(pll), PLL_STANDBY); + + /* Select internally generated clock. */ + regmap_update_bits(regmap, PLL_MODE(pll), PONGO_CLOCK_SELECT, + PONGO_CLOCK_SELECT); + + return 0; +} + +static int alpha_pll_pongo_elu_enable(struct clk_hw *hw) +{ + struct clk_alpha_pll *pll = to_clk_alpha_pll(hw); + struct regmap *regmap = pll->clkr.regmap; + int ret; + + /* Check if PLL is already enabled */ + if (trion_pll_is_enabled(pll, regmap)) + return 0; + + ret = regmap_update_bits(regmap, PLL_MODE(pll), PLL_RESET_N, PLL_RESET_N); + if (ret) + return ret; + + /* Set operation mode to RUN */ + regmap_write(regmap, PLL_OPMODE(pll), PLL_RUN); + + ret = wait_for_pll_enable_lock(pll); + if (ret) + return ret; + + /* Enable the global PLL outputs */ + ret = regmap_update_bits(regmap, PLL_MODE(pll), PLL_OUTCTRL, PLL_OUTCTRL); + if (ret) + return ret; + + /* Ensure that the write above goes through before returning. */ + mb(); + + return ret; +} + +static void alpha_pll_pongo_elu_disable(struct clk_hw *hw) +{ + struct clk_alpha_pll *pll = to_clk_alpha_pll(hw); + struct regmap *regmap = pll->clkr.regmap; + int ret; + + /* Disable the global PLL output */ + ret = regmap_update_bits(regmap, PLL_MODE(pll), PLL_OUTCTRL, 0); + if (ret) + return; + + /* Place the PLL mode in STANDBY */ + regmap_write(regmap, PLL_OPMODE(pll), PLL_STANDBY); +} + +static unsigned long alpha_pll_pongo_elu_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct clk_alpha_pll *pll = to_clk_alpha_pll(hw); + struct regmap *regmap = pll->clkr.regmap; + u32 l; + + if (regmap_read(regmap, PLL_L_VAL(pll), &l)) + return 0; + + l &= PONGO_PLL_L_VAL_MASK; + + return alpha_pll_calc_rate(parent_rate, l, 0, pll_alpha_width(pll)); +} + +const struct clk_ops clk_alpha_pll_pongo_elu_ops = { + .prepare = alpha_pll_pongo_elu_prepare, + .enable = alpha_pll_pongo_elu_enable, + .disable = alpha_pll_pongo_elu_disable, + .recalc_rate = alpha_pll_pongo_elu_recalc_rate, +}; +EXPORT_SYMBOL_GPL(clk_alpha_pll_pongo_elu_ops); + +void clk_pongo_elu_pll_configure(struct clk_alpha_pll *pll, + struct regmap *regmap, + const struct alpha_pll_config *config) +{ + u32 val; + + regmap_update_bits(regmap, PLL_USER_CTL(pll), PONGO_PLL_OUT_MASK, + PONGO_PLL_OUT_MASK); + + if (trion_pll_is_enabled(pll, regmap)) + return; + + if (regmap_read(regmap, PLL_L_VAL(pll), &val)) + return; + val &= PONGO_PLL_L_VAL_MASK; + if (val) + return; + + clk_alpha_pll_write_config(regmap, PLL_L_VAL(pll), config->l); + clk_alpha_pll_write_config(regmap, PLL_ALPHA_VAL(pll), config->alpha); + clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL(pll), config->config_ctl_val); + clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL_U(pll), config->config_ctl_hi_val); + clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL_U1(pll), config->config_ctl_hi1_val); + clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL_U2(pll), config->config_ctl_hi2_val); + clk_alpha_pll_write_config(regmap, PLL_USER_CTL(pll), + config->user_ctl_val | PONGO_PLL_OUT_MASK); + clk_alpha_pll_write_config(regmap, PLL_USER_CTL_U(pll), config->user_ctl_hi_val); + clk_alpha_pll_write_config(regmap, PLL_TEST_CTL(pll), config->test_ctl_val); + clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U(pll), config->test_ctl_hi_val); + clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U1(pll), config->test_ctl_hi1_val); + clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U2(pll), config->test_ctl_hi2_val); + clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U3(pll), config->test_ctl_hi3_val); + + /* Disable PLL output */ + regmap_update_bits(regmap, PLL_MODE(pll), PLL_OUTCTRL, 0); +} +EXPORT_SYMBOL_GPL(clk_pongo_elu_pll_configure); + +void clk_rivian_evo_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap, + const struct alpha_pll_config *config) +{ + clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL(pll), config->config_ctl_val); + clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL_U(pll), config->config_ctl_hi_val); + clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL_U1(pll), config->config_ctl_hi1_val); + clk_alpha_pll_write_config(regmap, PLL_TEST_CTL(pll), config->test_ctl_val); + clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U(pll), config->test_ctl_hi_val); + clk_alpha_pll_write_config(regmap, PLL_L_VAL(pll), config->l); + clk_alpha_pll_write_config(regmap, PLL_USER_CTL(pll), config->user_ctl_val); + clk_alpha_pll_write_config(regmap, PLL_USER_CTL_U(pll), config->user_ctl_hi_val); + + regmap_write(regmap, PLL_OPMODE(pll), PLL_STANDBY); + + regmap_update_bits(regmap, PLL_MODE(pll), + PLL_RESET_N | PLL_BYPASSNL | PLL_OUTCTRL, + PLL_RESET_N | PLL_BYPASSNL); +} +EXPORT_SYMBOL_GPL(clk_rivian_evo_pll_configure); + +static unsigned long clk_rivian_evo_pll_recalc_rate(struct clk_hw *hw, + unsigned long parent_rate) +{ + struct clk_alpha_pll *pll = to_clk_alpha_pll(hw); + u32 l; + + if (regmap_read(pll->clkr.regmap, PLL_L_VAL(pll), &l)) + return 0; + + return parent_rate * l; +} + +static int clk_rivian_evo_pll_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) +{ + struct clk_alpha_pll *pll = to_clk_alpha_pll(hw); + unsigned long min_freq, max_freq; + u32 l; + u64 a; + + req->rate = alpha_pll_round_rate(req->rate, req->best_parent_rate, &l, + &a, 0); + if (!pll->vco_table || alpha_pll_find_vco(pll, req->rate)) + return 0; + + min_freq = pll->vco_table[0].min_freq; + max_freq = pll->vco_table[pll->num_vco - 1].max_freq; + + req->rate = clamp(req->rate, min_freq, max_freq); + + return 0; +} + +const struct clk_ops clk_alpha_pll_rivian_evo_ops = { + .enable = alpha_pll_lucid_5lpe_enable, + .disable = alpha_pll_lucid_5lpe_disable, + .is_enabled = clk_trion_pll_is_enabled, + .recalc_rate = clk_rivian_evo_pll_recalc_rate, + .determine_rate = clk_rivian_evo_pll_determine_rate, +}; +EXPORT_SYMBOL_GPL(clk_alpha_pll_rivian_evo_ops); + +void clk_stromer_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap, + const struct alpha_pll_config *config) +{ + u32 val, val_u, mask, mask_u; + + regmap_write(regmap, PLL_L_VAL(pll), config->l); + regmap_write(regmap, PLL_ALPHA_VAL(pll), config->alpha); + regmap_write(regmap, PLL_CONFIG_CTL(pll), config->config_ctl_val); + + if (pll_has_64bit_config(pll)) + regmap_write(regmap, PLL_CONFIG_CTL_U(pll), + config->config_ctl_hi_val); + + if (pll_alpha_width(pll) > 32) + regmap_write(regmap, PLL_ALPHA_VAL_U(pll), config->alpha_hi); + + val = config->main_output_mask; + val |= config->aux_output_mask; + val |= config->aux2_output_mask; + val |= config->early_output_mask; + val |= config->pre_div_val; + val |= config->post_div_val; + val |= config->vco_val; + val |= config->alpha_en_mask; + val |= config->alpha_mode_mask; + + mask = config->main_output_mask; + mask |= config->aux_output_mask; + mask |= config->aux2_output_mask; + mask |= config->early_output_mask; + mask |= config->pre_div_mask; + mask |= config->post_div_mask; + mask |= config->vco_mask; + mask |= config->alpha_en_mask; + mask |= config->alpha_mode_mask; + + regmap_update_bits(regmap, PLL_USER_CTL(pll), mask, val); + + /* Stromer APSS PLL does not enable LOCK_DET by default, so enable it */ + val_u = config->status_val << ALPHA_PLL_STATUS_REG_SHIFT; + val_u |= config->lock_det; + + mask_u = config->status_mask; + mask_u |= config->lock_det; + + regmap_update_bits(regmap, PLL_USER_CTL_U(pll), mask_u, val_u); + regmap_write(regmap, PLL_TEST_CTL(pll), config->test_ctl_val); + regmap_write(regmap, PLL_TEST_CTL_U(pll), config->test_ctl_hi_val); + + if (pll->flags & SUPPORTS_FSM_MODE) + qcom_pll_set_fsm_mode(regmap, PLL_MODE(pll), 6, 0); +} +EXPORT_SYMBOL_GPL(clk_stromer_pll_configure); + +static int clk_alpha_pll_stromer_determine_rate(struct clk_hw *hw, + struct clk_rate_request *req) +{ + u32 l; + u64 a; + + req->rate = alpha_pll_round_rate(req->rate, req->best_parent_rate, + &l, &a, ALPHA_REG_BITWIDTH); + + return 0; +} + +static int clk_alpha_pll_stromer_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long prate) +{ + struct clk_alpha_pll *pll = to_clk_alpha_pll(hw); + int ret; + u32 l; + u64 a; + + rate = alpha_pll_round_rate(rate, prate, &l, &a, ALPHA_REG_BITWIDTH); + + regmap_write(pll->clkr.regmap, PLL_L_VAL(pll), l); + + a <<= ALPHA_REG_BITWIDTH - ALPHA_BITWIDTH; + regmap_write(pll->clkr.regmap, PLL_ALPHA_VAL(pll), a); + regmap_write(pll->clkr.regmap, PLL_ALPHA_VAL_U(pll), + a >> ALPHA_BITWIDTH); + + regmap_update_bits(pll->clkr.regmap, PLL_USER_CTL(pll), + PLL_ALPHA_EN, PLL_ALPHA_EN); + + if (!clk_hw_is_enabled(hw)) + return 0; + + /* + * Stromer PLL supports Dynamic programming. + * It allows the PLL frequency to be changed on-the-fly without first + * execution of a shutdown procedure followed by a bring up procedure. + */ + regmap_update_bits(pll->clkr.regmap, PLL_MODE(pll), PLL_UPDATE, + PLL_UPDATE); + + ret = wait_for_pll_update(pll); + if (ret) + return ret; + + return wait_for_pll_enable_lock(pll); +} + +const struct clk_ops clk_alpha_pll_stromer_ops = { + .enable = clk_alpha_pll_enable, + .disable = clk_alpha_pll_disable, + .is_enabled = clk_alpha_pll_is_enabled, + .recalc_rate = clk_alpha_pll_recalc_rate, + .determine_rate = clk_alpha_pll_stromer_determine_rate, + .set_rate = clk_alpha_pll_stromer_set_rate, +}; +EXPORT_SYMBOL_GPL(clk_alpha_pll_stromer_ops); + +static int clk_alpha_pll_stromer_plus_set_rate(struct clk_hw *hw, + unsigned long rate, + unsigned long prate) +{ + struct clk_alpha_pll *pll = to_clk_alpha_pll(hw); + u32 l, alpha_width = pll_alpha_width(pll); + int ret, pll_mode; + u64 a; + + rate = alpha_pll_round_rate(rate, prate, &l, &a, alpha_width); + + ret = regmap_read(pll->clkr.regmap, PLL_MODE(pll), &pll_mode); + if (ret) + return ret; + + regmap_write(pll->clkr.regmap, PLL_MODE(pll), 0); + + /* Delay of 2 output clock ticks required until output is disabled */ + udelay(1); + + regmap_write(pll->clkr.regmap, PLL_L_VAL(pll), l); + + if (alpha_width > ALPHA_BITWIDTH) + a <<= alpha_width - ALPHA_BITWIDTH; + + regmap_write(pll->clkr.regmap, PLL_ALPHA_VAL(pll), a); + regmap_write(pll->clkr.regmap, PLL_ALPHA_VAL_U(pll), + a >> ALPHA_BITWIDTH); + + regmap_update_bits(pll->clkr.regmap, PLL_USER_CTL(pll), + PLL_ALPHA_EN, PLL_ALPHA_EN); + + regmap_write(pll->clkr.regmap, PLL_MODE(pll), PLL_BYPASSNL); + + /* Wait five micro seconds or more */ + udelay(5); + regmap_update_bits(pll->clkr.regmap, PLL_MODE(pll), PLL_RESET_N, + PLL_RESET_N); + + /* The lock time should be less than 50 micro seconds worst case */ + usleep_range(50, 60); + + ret = wait_for_pll_enable_lock(pll); + if (ret) { + pr_err("Wait for PLL enable lock failed [%s] %d\n", + clk_hw_get_name(hw), ret); + return ret; + } + + if (pll_mode & PLL_OUTCTRL) + regmap_update_bits(pll->clkr.regmap, PLL_MODE(pll), PLL_OUTCTRL, + PLL_OUTCTRL); + + return 0; +} + +const struct clk_ops clk_alpha_pll_stromer_plus_ops = { + .prepare = clk_alpha_pll_enable, + .unprepare = clk_alpha_pll_disable, + .is_enabled = clk_alpha_pll_is_enabled, + .recalc_rate = clk_alpha_pll_recalc_rate, + .determine_rate = clk_alpha_pll_stromer_determine_rate, + .set_rate = clk_alpha_pll_stromer_plus_set_rate, +}; +EXPORT_SYMBOL_GPL(clk_alpha_pll_stromer_plus_ops); + +void clk_regera_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap, + const struct alpha_pll_config *config) +{ + clk_alpha_pll_write_config(regmap, PLL_L_VAL(pll), config->l); + clk_alpha_pll_write_config(regmap, PLL_ALPHA_VAL(pll), config->alpha); + clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL(pll), config->config_ctl_val); + clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL_U(pll), config->config_ctl_hi_val); + clk_alpha_pll_write_config(regmap, PLL_CONFIG_CTL_U1(pll), config->config_ctl_hi1_val); + clk_alpha_pll_write_config(regmap, PLL_USER_CTL(pll), config->user_ctl_val); + clk_alpha_pll_write_config(regmap, PLL_USER_CTL_U(pll), config->user_ctl_hi_val); + clk_alpha_pll_write_config(regmap, PLL_USER_CTL_U1(pll), config->user_ctl_hi1_val); + clk_alpha_pll_write_config(regmap, PLL_TEST_CTL(pll), config->test_ctl_val); + clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U(pll), config->test_ctl_hi_val); + clk_alpha_pll_write_config(regmap, PLL_TEST_CTL_U1(pll), config->test_ctl_hi1_val); + + /* Set operation mode to STANDBY */ + regmap_write(regmap, PLL_OPMODE(pll), PLL_STANDBY); +} +EXPORT_SYMBOL_GPL(clk_regera_pll_configure); + +const struct clk_ops clk_alpha_pll_regera_ops = { + .enable = clk_zonda_pll_enable, + .disable = clk_zonda_pll_disable, + .is_enabled = clk_alpha_pll_is_enabled, + .recalc_rate = clk_trion_pll_recalc_rate, + .determine_rate = clk_alpha_pll_determine_rate, + .set_rate = clk_zonda_pll_set_rate, +}; +EXPORT_SYMBOL_GPL(clk_alpha_pll_regera_ops); + +void qcom_clk_alpha_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap) +{ + const struct clk_init_data *init = pll->clkr.hw.init; + + switch (GET_PLL_TYPE(pll)) { + case CLK_ALPHA_PLL_TYPE_LUCID_OLE: + clk_lucid_ole_pll_configure(pll, regmap, pll->config); + break; + case CLK_ALPHA_PLL_TYPE_LUCID_EVO: + clk_lucid_evo_pll_configure(pll, regmap, pll->config); + break; + case CLK_ALPHA_PLL_TYPE_TAYCAN_ELU: + clk_taycan_elu_pll_configure(pll, regmap, pll->config); + break; + case CLK_ALPHA_PLL_TYPE_RIVIAN_EVO: + clk_rivian_evo_pll_configure(pll, regmap, pll->config); + break; + case CLK_ALPHA_PLL_TYPE_TRION: + clk_trion_pll_configure(pll, regmap, pll->config); + break; + case CLK_ALPHA_PLL_TYPE_HUAYRA_2290: + clk_huayra_2290_pll_configure(pll, regmap, pll->config); + break; + case CLK_ALPHA_PLL_TYPE_FABIA: + clk_fabia_pll_configure(pll, regmap, pll->config); + break; + case CLK_ALPHA_PLL_TYPE_AGERA: + clk_agera_pll_configure(pll, regmap, pll->config); + break; + case CLK_ALPHA_PLL_TYPE_PONGO_ELU: + clk_pongo_elu_pll_configure(pll, regmap, pll->config); + break; + case CLK_ALPHA_PLL_TYPE_ZONDA: + case CLK_ALPHA_PLL_TYPE_ZONDA_OLE: + clk_zonda_pll_configure(pll, regmap, pll->config); + break; + case CLK_ALPHA_PLL_TYPE_STROMER: + case CLK_ALPHA_PLL_TYPE_STROMER_PLUS: + clk_stromer_pll_configure(pll, regmap, pll->config); + break; + case CLK_ALPHA_PLL_TYPE_DEFAULT: + case CLK_ALPHA_PLL_TYPE_DEFAULT_EVO: + case CLK_ALPHA_PLL_TYPE_HUAYRA: + case CLK_ALPHA_PLL_TYPE_HUAYRA_APSS: + case CLK_ALPHA_PLL_TYPE_BRAMMO: + case CLK_ALPHA_PLL_TYPE_BRAMMO_EVO: + clk_alpha_pll_configure(pll, regmap, pll->config); + break; + default: + WARN(1, "%s: invalid pll type\n", init->name); + break; + } +} +EXPORT_SYMBOL_GPL(qcom_clk_alpha_pll_configure); + +static int clk_alpha_pll_slew_update(struct clk_alpha_pll *pll) +{ + u32 val; + int ret; + + regmap_set_bits(pll->clkr.regmap, PLL_MODE(pll), PLL_UPDATE); + regmap_read(pll->clkr.regmap, PLL_MODE(pll), &val); + + ret = wait_for_pll_update(pll); + if (ret) + return ret; + /* + * Hardware programming mandates a wait of at least 570ns before polling the LOCK + * detect bit. Have a delay of 1us just to be safe. + */ + udelay(1); + + return wait_for_pll_enable_lock(pll); +} + +static int clk_alpha_pll_slew_set_rate(struct clk_hw *hw, unsigned long rate, + unsigned long parent_rate) +{ + struct clk_alpha_pll *pll = to_clk_alpha_pll(hw); + const struct pll_vco *curr_vco, *vco; + unsigned long freq_hz; + u64 a; + u32 l; + + freq_hz = alpha_pll_round_rate(rate, parent_rate, &l, &a, ALPHA_REG_BITWIDTH); + if (freq_hz != rate) { + pr_err("alpha_pll: Call clk_set_rate with rounded rates!\n"); + return -EINVAL; + } + + curr_vco = alpha_pll_find_vco(pll, clk_hw_get_rate(hw)); + if (!curr_vco) { + pr_err("alpha pll: not in a valid vco range\n"); + return -EINVAL; + } + + vco = alpha_pll_find_vco(pll, freq_hz); + if (!vco) { + pr_err("alpha pll: not in a valid vco range\n"); + return -EINVAL; + } + + /* + * Dynamic pll update will not support switching frequencies across + * vco ranges. In those cases fall back to normal alpha set rate. + */ + if (curr_vco->val != vco->val) + return clk_alpha_pll_set_rate(hw, rate, parent_rate); + + clk_alpha_pll_update_configs(pll, NULL, l, a, ALPHA_REG_BITWIDTH, false); + + /* Ensure that the write above goes before slewing the PLL */ + mb(); + + if (clk_hw_is_enabled(hw)) + return clk_alpha_pll_slew_update(pll); + + return 0; +} + +/* + * Slewing plls should be bought up at frequency which is in the middle of the + * desired VCO range. So after bringing up the pll at calibration freq, set it + * back to desired frequency(that was set by previous clk_set_rate). + */ +static int clk_alpha_pll_calibrate(struct clk_hw *hw) +{ + struct clk_alpha_pll *pll = to_clk_alpha_pll(hw); + struct clk_hw *parent; + const struct pll_vco *vco; + unsigned long calibration_freq, freq_hz; + u64 a; + u32 l; + int rc; + + parent = clk_hw_get_parent(hw); + if (!parent) { + pr_err("alpha pll: no valid parent found\n"); + return -EINVAL; + } + + vco = alpha_pll_find_vco(pll, clk_hw_get_rate(hw)); + if (!vco) { + pr_err("alpha pll: not in a valid vco range\n"); + return -EINVAL; + } + + /* + * As during slewing plls vco_sel won't be allowed to change, vco table + * should have only one entry table, i.e. index = 0, find the + * calibration frequency. + */ + calibration_freq = (pll->vco_table[0].min_freq + pll->vco_table[0].max_freq) / 2; + + freq_hz = alpha_pll_round_rate(calibration_freq, clk_hw_get_rate(parent), + &l, &a, ALPHA_REG_BITWIDTH); + if (freq_hz != calibration_freq) { + pr_err("alpha_pll: call clk_set_rate with rounded rates!\n"); + return -EINVAL; + } + + clk_alpha_pll_update_configs(pll, vco, l, a, ALPHA_REG_BITWIDTH, false); + + /* Bringup the pll at calibration frequency */ + rc = clk_alpha_pll_enable(hw); + if (rc) { + pr_err("alpha pll calibration failed\n"); + return rc; + } + + /* + * PLL is already running at calibration frequency. + * So slew pll to the previously set frequency. + */ + freq_hz = alpha_pll_round_rate(clk_hw_get_rate(hw), + clk_hw_get_rate(parent), &l, &a, ALPHA_REG_BITWIDTH); + + pr_debug("pll %s: setting back to required rate %lu, freq_hz %ld\n", + clk_hw_get_name(hw), clk_hw_get_rate(hw), freq_hz); + + clk_alpha_pll_update_configs(pll, NULL, l, a, ALPHA_REG_BITWIDTH, true); + + return clk_alpha_pll_slew_update(pll); +} + +static int clk_alpha_pll_slew_enable(struct clk_hw *hw) +{ + int rc; + + rc = clk_alpha_pll_calibrate(hw); + if (rc) + return rc; + + return clk_alpha_pll_enable(hw); +} + +const struct clk_ops clk_alpha_pll_slew_ops = { + .enable = clk_alpha_pll_slew_enable, + .disable = clk_alpha_pll_disable, + .recalc_rate = clk_alpha_pll_recalc_rate, + .determine_rate = clk_alpha_pll_determine_rate, + .set_rate = clk_alpha_pll_slew_set_rate, +}; +EXPORT_SYMBOL(clk_alpha_pll_slew_ops); |