diff --git a/drivers/clk/qcom/clk-alpha-pll.c b/drivers/clk/qcom/clk-alpha-pll.c index b305c5960883..c42aaad59d8c 100644 --- a/drivers/clk/qcom/clk-alpha-pll.c +++ b/drivers/clk/qcom/clk-alpha-pll.c @@ -202,6 +202,21 @@ const u8 clk_alpha_pll_regs[][PLL_OFF_MAX_REGS] = { [PLL_OFF_TEST_CTL_U] = 0x1c, [PLL_OFF_STATUS] = 0x2c, }, + [CLK_ALPHA_PLL_TYPE_LUCID_EVO] = { + [PLL_OFF_OPMODE] = 0x04, + [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, + }, + }; EXPORT_SYMBOL_GPL(clk_alpha_pll_regs); @@ -232,6 +247,8 @@ EXPORT_SYMBOL_GPL(clk_alpha_pll_regs); #define LUCID_5LPE_ENABLE_VOTE_RUN BIT(21) #define LUCID_5LPE_PLL_LATCH_INPUT BIT(14) #define LUCID_5LPE_ALPHA_PLL_ACK_LATCH BIT(13) +#define LUCID_EVO_ENABLE_VOTE_RUN BIT(25) +#define LUCID_EVO_PLL_L_VAL_MASK GENMASK(15, 0) /* ZONDA PLL specific offsets */ #define ZONDA_PLL_OUT_MASK 0xF @@ -3174,6 +3191,224 @@ const struct clk_ops clk_alpha_pll_postdiv_lucid_5lpe_ops = { }; EXPORT_SYMBOL(clk_alpha_pll_postdiv_lucid_5lpe_ops); +static int alpha_pll_lucid_evo_enable(struct clk_hw *hw) +{ + struct clk_alpha_pll *pll = to_clk_alpha_pll(hw); + u32 val; + int ret; + + ret = regmap_read(pll->clkr.regmap, PLL_USER_CTL(pll), &val); + if (ret) + return ret; + + /* If in FSM mode, just vote for it */ + if (val & LUCID_EVO_ENABLE_VOTE_RUN) { + ret = clk_enable_regmap(hw); + if (ret) + return ret; + return wait_for_pll_enable_lock(pll); + } + + /* Check if PLL is already enabled */ + ret = lucid_pll_is_enabled(pll, pll->clkr.regmap); + if (ret < 0) + return ret; + else if (ret) { + pr_warn("%s PLL is already enabled\n", + clk_hw_get_name(&pll->clkr.hw)); + return 0; + } + + ret = regmap_update_bits(pll->clkr.regmap, PLL_MODE(pll), + PLL_RESET_N, PLL_RESET_N); + if (ret) + return ret; + + /* Set operation mode to RUN */ + regmap_write(pll->clkr.regmap, PLL_OPMODE(pll), PLL_OPMODE_RUN); + + ret = wait_for_pll_enable_lock(pll); + if (ret) + return ret; + + /* Enable the PLL outputs */ + ret = regmap_update_bits(pll->clkr.regmap, PLL_USER_CTL(pll), + PLL_OUT_MASK, PLL_OUT_MASK); + if (ret) + return ret; + + /* Enable the global PLL outputs */ + ret = regmap_update_bits(pll->clkr.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_lucid_evo_disable(struct clk_hw *hw) +{ + struct clk_alpha_pll *pll = to_clk_alpha_pll(hw); + u32 val; + int ret; + + ret = regmap_read(pll->clkr.regmap, PLL_USER_CTL(pll), &val); + if (ret) + return; + + /* If in FSM mode, just unvote it */ + if (val & LUCID_EVO_ENABLE_VOTE_RUN) { + clk_disable_regmap(hw); + return; + } + + /* Disable the global PLL output */ + ret = regmap_update_bits(pll->clkr.regmap, PLL_MODE(pll), + PLL_OUTCTRL, 0); + if (ret) + return; + + /* Disable the PLL outputs */ + ret = regmap_update_bits(pll->clkr.regmap, PLL_USER_CTL(pll), + PLL_OUT_MASK, 0); + if (ret) + return; + + /* Place the PLL mode in STANDBY */ + regmap_write(pll->clkr.regmap, PLL_OPMODE(pll), + PLL_OPMODE_STANDBY); +} + +static unsigned long +alpha_pll_lucid_evo_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) +{ + struct clk_alpha_pll *pll = to_clk_alpha_pll(hw); + u32 l, frac; + + regmap_read(pll->clkr.regmap, PLL_L_VAL(pll), &l); + l &= LUCID_EVO_PLL_L_VAL_MASK; + regmap_read(pll->clkr.regmap, PLL_ALPHA_VAL(pll), &frac); + + return alpha_pll_calc_rate(parent_rate, l, frac, ALPHA_REG_16BIT_WIDTH); +} + +static int clk_lucid_evo_pll_postdiv_set_rate(struct clk_hw *hw, + unsigned long rate, unsigned long parent_rate) +{ + struct clk_alpha_pll_postdiv *pll = to_clk_alpha_pll_postdiv(hw); + int i, val = 0, div, ret; + + /* + * If the PLL is in FSM mode, then treat set_rate callback as a + * no-operation. + */ + ret = regmap_read(pll->clkr.regmap, PLL_USER_CTL(pll), &val); + if (ret) + return ret; + + if (val & LUCID_EVO_ENABLE_VOTE_RUN) + return 0; + + if (!pll->post_div_table) { + pr_err("Missing the post_div_table for the PLL\n"); + return -EINVAL; + } + + div = DIV_ROUND_UP_ULL((u64)parent_rate, rate); + for (i = 0; i < pll->num_post_div; i++) { + if (pll->post_div_table[i].div == div) { + val = pll->post_div_table[i].val; + break; + } + } + + return regmap_update_bits(pll->clkr.regmap, PLL_USER_CTL(pll), + (BIT(pll->width) - 1) << pll->post_div_shift, + val << pll->post_div_shift); +} + +static void lucid_evo_pll_list_registers(struct seq_file *f, + struct clk_hw *hw) +{ + struct clk_alpha_pll *pll = to_clk_alpha_pll(hw); + int size, i, val; + + static struct clk_register_data data[] = { + {"PLL_MODE", PLL_OFF_MODE}, + {"PLL_OPMODE", PLL_OFF_OPMODE}, + {"PLL_STATUS", PLL_OFF_STATUS}, + {"PLL_L_VAL", PLL_OFF_L_VAL}, + {"PLL_ALPHA_VAL", PLL_OFF_ALPHA_VAL}, + {"PLL_USER_CTL", PLL_OFF_USER_CTL}, + {"PLL_USER_CTL_U", PLL_OFF_USER_CTL_U}, + {"PLL_CONFIG_CTL", PLL_OFF_CONFIG_CTL}, + {"PLL_CONFIG_CTL_U", PLL_OFF_CONFIG_CTL_U}, + {"PLL_CONFIG_CTL_U1", PLL_OFF_CONFIG_CTL_U1}, + {"PLL_TEST_CTL", PLL_OFF_TEST_CTL}, + {"PLL_TEST_CTL_U", PLL_OFF_TEST_CTL_U}, + {"PLL_TEST_CTL_U1", PLL_OFF_TEST_CTL_U1}, + }; + + static struct clk_register_data data1[] = { + {"APSS_PLL_VOTE", 0x0}, + }; + + size = ARRAY_SIZE(data); + + for (i = 0; i < size; i++) { + regmap_read(pll->clkr.regmap, pll->offset + + pll->regs[data[i].offset], &val); + seq_printf(f, "%20s: 0x%.8x\n", data[i].name, val); + } + + regmap_read(pll->clkr.regmap, PLL_USER_CTL(pll), &val); + + if (val & LUCID_EVO_ENABLE_VOTE_RUN) { + regmap_read(pll->clkr.regmap, pll->clkr.enable_reg + + data1[0].offset, &val); + seq_printf(f, "%20s: 0x%.8x\n", data1[0].name, val); + } +} + +static struct clk_regmap_ops clk_lucid_evo_pll_regmap_ops = { + .list_registers = &lucid_evo_pll_list_registers, +}; + +static void clk_lucid_evo_pll_init(struct clk_hw *hw) +{ + struct clk_regmap *rclk = to_clk_regmap(hw); + + if (!rclk->ops) + rclk->ops = &clk_lucid_evo_pll_regmap_ops; +} + +const struct clk_ops clk_alpha_pll_fixed_lucid_evo_ops = { + .prepare = clk_prepare_regmap, + .unprepare = clk_unprepare_regmap, + .pre_rate_change = clk_pre_change_regmap, + .post_rate_change = clk_post_change_regmap, + .enable = alpha_pll_lucid_evo_enable, + .disable = alpha_pll_lucid_evo_disable, + .is_enabled = alpha_pll_lucid_is_enabled, + .recalc_rate = alpha_pll_lucid_evo_recalc_rate, + .round_rate = clk_alpha_pll_round_rate, + .debug_init = clk_common_debug_init, + .init = clk_lucid_evo_pll_init, +#ifdef CONFIG_COMMON_CLK_QCOM_DEBUG + .list_rate_vdd_level = clk_list_rate_vdd_level, +#endif +}; +EXPORT_SYMBOL(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, + .set_rate = clk_lucid_evo_pll_postdiv_set_rate, +}; +EXPORT_SYMBOL(clk_alpha_pll_postdiv_lucid_evo_ops); + int clk_regera_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap, const struct alpha_pll_config *config) { diff --git a/drivers/clk/qcom/clk-alpha-pll.h b/drivers/clk/qcom/clk-alpha-pll.h index 594e1901c738..2d097aa1f1a0 100644 --- a/drivers/clk/qcom/clk-alpha-pll.h +++ b/drivers/clk/qcom/clk-alpha-pll.h @@ -23,6 +23,7 @@ enum { CLK_ALPHA_PLL_TYPE_ZONDA_5LPE, CLK_ALPHA_PLL_TYPE_REGERA, CLK_ALPHA_PLL_TYPE_AGERA, + CLK_ALPHA_PLL_TYPE_LUCID_EVO, CLK_ALPHA_PLL_TYPE_MAX, }; @@ -159,6 +160,9 @@ extern const struct clk_ops clk_trion_pll_ops; extern const struct clk_ops clk_regera_pll_ops; extern const struct clk_ops clk_agera_pll_ops; +extern const struct clk_ops clk_alpha_pll_fixed_lucid_evo_ops; +extern const struct clk_ops clk_alpha_pll_postdiv_lucid_evo_ops; + void clk_alpha_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap, const struct alpha_pll_config *config); int clk_fabia_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,