[PATCH 5.18 0706/1095] clk: qcom: ipq8074: fix NSS core PLL-s

Greg Kroah-Hartman
2022-08-15T21:54:29Z

From: Robert Marko <robimarko@gmail.com>

[ Upstream commit ca41ec1b30434636c56c5600b24a8d964d359d9c ]

Like in IPQ6018 the NSS related Alpha PLL-s require initial configuration
to work.

So, obtain the regmap that is required for the Alpha PLL configuration
and thus utilize the qcom_cc_really_probe() as we already have the regmap.
Then utilize the Alpha PLL configs from the downstream QCA 5.4 based
kernel to configure them.

This fixes the UBI32 and NSS crypto PLL-s failing to get enabled by the
kernel.

Fixes: b8e7e519625f ("clk: qcom: ipq8074: add remaining PLL’s")
Signed-off-by: Robert Marko <robimarko@gmail.com>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20220515210048.483898-1-robimarko@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/clk/qcom/gcc-ipq8074.c | 39 +++++++++++++++++++++++++++++++++-
1 file changed, 38 insertions(+), 1 deletion(-)

diff --git a/drivers/clk/qcom/gcc-ipq8074.c b/drivers/clk/qcom/gcc-ipq8074.c
index 541016db3c4b..1a5141da7e23 100644
--- a/drivers/clk/qcom/gcc-ipq8074.c
+++ b/drivers/clk/qcom/gcc-ipq8074.c
@@ -4371,6 +4371,33 @@ static struct clk_branch gcc_pcie0_axi_s_bridge_clk = {
},
};

+static const struct alpha_pll_config ubi32_pll_config = {
+ .l = 0x4e,
+ .config_ctl_val = 0x200d4aa8,
+ .config_ctl_hi_val = 0x3c2,
+ .main_output_mask = BIT(0),
+ .aux_output_mask = BIT(1),
+ .pre_div_val = 0x0,
+ .pre_div_mask = BIT(12),
+ .post_div_val = 0x0,
+ .post_div_mask = GENMASK(9, 8),
+};
+
+static const struct alpha_pll_config nss_crypto_pll_config = {
+ .l = 0x3e,
+ .alpha = 0x0,
+ .alpha_hi = 0x80,
+ .config_ctl_val = 0x4001055b,
+ .main_output_mask = BIT(0),
+ .pre_div_val = 0x0,
+ .pre_div_mask = GENMASK(14, 12),
+ .post_div_val = 0x1 << 8,
+ .post_div_mask = GENMASK(11, 8),
+ .vco_mask = GENMASK(21, 20),
+ .vco_val = 0x0,
+ .alpha_en_mask = BIT(24),
+};
+
static struct clk_hw *gcc_ipq8074_hws[] = {
&gpll0_out_main_div2.hw,
&gpll6_out_main_div2.hw,
@@ -4772,7 +4799,17 @@ static const struct qcom_cc_desc gcc_ipq8074_desc = {

static int gcc_ipq8074_probe(struct platform_device *pdev)
{
- return qcom_cc_probe(pdev, &gcc_ipq8074_desc);
+ struct regmap *regmap;
+
+ regmap = qcom_cc_map(pdev, &gcc_ipq8074_desc);
+ if (IS_ERR(regmap))
+ return PTR_ERR(regmap);
+
+ clk_alpha_pll_configure(&ubi32_pll_main, regmap, &ubi32_pll_config);
+ clk_alpha_pll_configure(&nss_crypto_pll_main, regmap,
+ &nss_crypto_pll_config);
+
+ return qcom_cc_really_probe(pdev, &gcc_ipq8074_desc, regmap);
}

static struct platform_driver gcc_ipq8074_driver = {
--
2.35.1