diff options
Diffstat (limited to 'drivers/clk/qcom/clk-alpha-pll.c')
| -rw-r--r-- | drivers/clk/qcom/clk-alpha-pll.c | 92 |
1 files changed, 92 insertions, 0 deletions
diff --git a/drivers/clk/qcom/clk-alpha-pll.c b/drivers/clk/qcom/clk-alpha-pll.c index e4ef645f65d1..05898d2a8b22 100644 --- a/drivers/clk/qcom/clk-alpha-pll.c +++ b/drivers/clk/qcom/clk-alpha-pll.c @@ -271,6 +271,7 @@ EXPORT_SYMBOL_GPL(clk_alpha_pll_regs); #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 /* ZONDA PLL specific */ #define ZONDA_PLL_OUT_MASK 0xf @@ -2119,6 +2120,34 @@ void clk_lucid_evo_pll_configure(struct clk_alpha_pll *pll, struct regmap *regma } 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) { struct clk_alpha_pll *pll = to_clk_alpha_pll(hw); @@ -2479,3 +2508,66 @@ const struct clk_ops clk_alpha_pll_stromer_ops = { .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_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); |