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clk: qcom: clk-alpha-pll: Add HUAYRA_2290 support

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Commit 134b55b7e1 ("clk: qcom: support Huayra type Alpha PLL")
introduced an entry to the alpha offsets array, but diving into QCM2290
downstream and some documentation, it turned out that the name Huayra
apparently has been used quite liberally across many chips, even with
noticeably different hardware.

Introduce another set of offsets and a new configure function for the
Huayra PLL found on QCM2290. This is required e.g. for the consumers
of GPUCC_PLL0 to properly start.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20240606-topic-rb1_gpu-v4-2-4bc0c19da4af@linaro.org
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
This commit is contained in:
Konrad Dybcio 2024-06-06 13:36:01 +02:00 committed by Bjorn Andersson
parent ea5594aa3e
commit d4d74e4b30
2 changed files with 50 additions and 0 deletions
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47
drivers/clk/qcom/clk-alpha-pll.c
View File

@ -93,6 +93,19 @@ const u8 clk_alpha_pll_regs[][PLL_OFF_MAX_REGS] = {
[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,
@ -788,6 +801,40 @@ static long clk_alpha_pll_round_rate(struct clk_hw *hw, unsigned long rate,
return clamp(rate, min_freq, max_freq);
}
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)
{

3
drivers/clk/qcom/clk-alpha-pll.h
View File

@ -16,6 +16,7 @@ enum {
CLK_ALPHA_PLL_TYPE_DEFAULT,
CLK_ALPHA_PLL_TYPE_HUAYRA,
CLK_ALPHA_PLL_TYPE_HUAYRA_APSS,
CLK_ALPHA_PLL_TYPE_HUAYRA_2290,
CLK_ALPHA_PLL_TYPE_BRAMMO,
CLK_ALPHA_PLL_TYPE_FABIA,
CLK_ALPHA_PLL_TYPE_TRION,
@ -194,6 +195,8 @@ extern const struct clk_ops clk_alpha_pll_rivian_evo_ops;
void clk_alpha_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,
const struct alpha_pll_config *config);
void clk_huayra_2290_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,
const struct alpha_pll_config *config);
void clk_trion_pll_configure(struct clk_alpha_pll *pll, struct regmap *regmap,