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clk: qcom: cbf-msm8996: Add support for MSM8996 Pro

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The CBF PLL on MSM8996 Pro has a /4 post divisor instead of /2. Handle the
difference accordingly.

Signed-off-by: Yassine Oudjana <y.oudjana@protonmail.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20230527093934.101335-4-y.oudjana@protonmail.com
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
This commit is contained in:
Yassine Oudjana 2023-05-27 12:39:34 +03:00 committed by Bjorn Andersson
parent 434cb57732
commit bc48641a68
1 changed files with 8 additions and 2 deletions
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10
drivers/clk/qcom/clk-cbf-8996.c
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@ -52,7 +52,7 @@ static const u8 cbf_pll_regs[PLL_OFF_MAX_REGS] = {
[PLL_OFF_STATUS] = 0x28, [PLL_OFF_STATUS] = 0x28,
}; };
static const struct alpha_pll_config cbfpll_config = { static struct alpha_pll_config cbfpll_config = {
.l = 72, .l = 72,
.config_ctl_val = 0x200d4828, .config_ctl_val = 0x200d4828,
.config_ctl_hi_val = 0x006, .config_ctl_hi_val = 0x006,
@ -141,7 +141,7 @@ static int clk_cbf_8996_mux_determine_rate(struct clk_hw *hw,
{ {
struct clk_hw *parent; struct clk_hw *parent;
if (req->rate < (DIV_THRESHOLD / 2)) if (req->rate < (DIV_THRESHOLD / cbf_pll_postdiv.div))
return -EINVAL; return -EINVAL;
if (req->rate < DIV_THRESHOLD) if (req->rate < DIV_THRESHOLD)
@ -312,6 +312,11 @@ static int qcom_msm8996_cbf_probe(struct platform_device *pdev)
/* Switch CBF to use the primary PLL */ /* Switch CBF to use the primary PLL */
regmap_update_bits(regmap, CBF_MUX_OFFSET, CBF_MUX_PARENT_MASK, 0x1); regmap_update_bits(regmap, CBF_MUX_OFFSET, CBF_MUX_PARENT_MASK, 0x1);
if (of_device_is_compatible(dev->of_node, "qcom,msm8996pro-cbf")) {
cbfpll_config.post_div_val = 0x3 << 8;
cbf_pll_postdiv.div = 4;
}
for (i = 0; i < ARRAY_SIZE(cbf_msm8996_hw_clks); i++) { for (i = 0; i < ARRAY_SIZE(cbf_msm8996_hw_clks); i++) {
ret = devm_clk_hw_register(dev, cbf_msm8996_hw_clks[i]); ret = devm_clk_hw_register(dev, cbf_msm8996_hw_clks[i]);
if (ret) if (ret)
@ -342,6 +347,7 @@ static int qcom_msm8996_cbf_remove(struct platform_device *pdev)
static const struct of_device_id qcom_msm8996_cbf_match_table[] = { static const struct of_device_id qcom_msm8996_cbf_match_table[] = {
{ .compatible = "qcom,msm8996-cbf" }, { .compatible = "qcom,msm8996-cbf" },
{ .compatible = "qcom,msm8996pro-cbf" },
{ /* sentinel */ }, { /* sentinel */ },
}; };
MODULE_DEVICE_TABLE(of, qcom_msm8996_cbf_match_table); MODULE_DEVICE_TABLE(of, qcom_msm8996_cbf_match_table);