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clk: qcom: clk-alpha-pll: add Rivian EVO PLL configuration interfaces 

Add and export Rivian EVO PLL configuration and control functions to
clock controller drivers, the PLL is used by SM8450 camera clock
controller.

Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220701062739.2757912-1-vladimir.zapolskiy@linaro.org
This commit is contained in:
Vladimir Zapolskiy 2022-07-01 09:27:39 +03:00 committed by Bjorn Andersson
parent 260e36606a
commit bbc780132d
2 changed files with 76 additions and 0 deletions
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70
drivers/clk/qcom/clk-alpha-pll.c
View File

@ -154,6 +154,18 @@ 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_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,
},
};
EXPORT_SYMBOL_GPL(clk_alpha_pll_regs);
@ -2178,3 +2190,61 @@ const struct clk_ops clk_alpha_pll_lucid_evo_ops = {
.set_rate = alpha_pll_lucid_5lpe_set_rate,
};
EXPORT_SYMBOL_GPL(clk_alpha_pll_lucid_evo_ops);
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;
regmap_read(pll->clkr.regmap, PLL_L_VAL(pll), &l);
return parent_rate * l;
}
static long clk_rivian_evo_pll_round_rate(struct clk_hw *hw, unsigned long rate,
unsigned long *prate)
{
struct clk_alpha_pll *pll = to_clk_alpha_pll(hw);
unsigned long min_freq, max_freq;
u32 l;
u64 a;
rate = alpha_pll_round_rate(rate, *prate, &l, &a, 0);
if (!pll->vco_table || alpha_pll_find_vco(pll, rate))
return rate;
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);
}
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,
.round_rate = clk_rivian_evo_pll_round_rate,
};
EXPORT_SYMBOL_GPL(clk_alpha_pll_rivian_evo_ops);

6
drivers/clk/qcom/clk-alpha-pll.h
View File

@ -18,6 +18,7 @@ enum {
CLK_ALPHA_PLL_TYPE_AGERA,
CLK_ALPHA_PLL_TYPE_ZONDA,
CLK_ALPHA_PLL_TYPE_LUCID_EVO,
CLK_ALPHA_PLL_TYPE_RIVIAN_EVO,
CLK_ALPHA_PLL_TYPE_MAX,
};
@ -157,6 +158,9 @@ extern const struct clk_ops clk_alpha_pll_lucid_evo_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;
extern const struct clk_ops clk_alpha_pll_rivian_evo_ops;
#define clk_alpha_pll_postdiv_rivian_evo_ops clk_alpha_pll_postdiv_fabia_ops
void clk_alpha_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
const struct alpha_pll_config *config);
void clk_fabia_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
@ -172,5 +176,7 @@ void clk_zonda_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
const struct alpha_pll_config *config);
void clk_lucid_evo_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
const struct alpha_pll_config *config);
void clk_rivian_evo_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
const struct alpha_pll_config *config);
#endif