linux-kernel - [PATCH 2/4] clk: qcom: cmnpll: Add IPQ5424 SoC support

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-ID: <20250321-qcom_ipq5424_cmnpll-v1-2-3ea8e5262da4@quicinc.com>
Date: Fri, 21 Mar 2025 20:49:53 +0800
From: Luo Jie <quic_luoj@...cinc.com>
To: Bjorn Andersson <andersson@...nel.org>,
        Michael Turquette
	<mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>, Rob Herring
	<robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley
	<conor+dt@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>
CC: <linux-arm-msm@...r.kernel.org>, <linux-clk@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <quic_kkumarcs@...cinc.com>, <quic_suruchia@...cinc.com>,
        <quic_pavir@...cinc.com>, <quic_linchen@...cinc.com>,
        <quic_leiwei@...cinc.com>, Luo Jie <quic_luoj@...cinc.com>
Subject: [PATCH 2/4] clk: qcom: cmnpll: Add IPQ5424 SoC support

The CMN PLL in IPQ5424 SoC supplies the fixed clock to NSS at 300 MHZ
and to PPE at 375 MHZ. Other output clocks from CMN PLL on this SoC,
and their rates are same as IPQ9574.

Signed-off-by: Luo Jie <quic_luoj@...cinc.com>
---
 drivers/clk/qcom/ipq-cmn-pll.c | 34 +++++++++++++++++++++++++++++-----
 1 file changed, 29 insertions(+), 5 deletions(-)

diff --git a/drivers/clk/qcom/ipq-cmn-pll.c b/drivers/clk/qcom/ipq-cmn-pll.c
index 432d4c4b7aa6..ce5e83124c6d 100644
--- a/drivers/clk/qcom/ipq-cmn-pll.c
+++ b/drivers/clk/qcom/ipq-cmn-pll.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-only
 /*
- * Copyright (c) 2024 Qualcomm Innovation Center, Inc. All rights reserved.
+ * Copyright (c) 2024-2025 Qualcomm Innovation Center, Inc. All rights reserved.
  */
 
 /*
@@ -16,6 +16,10 @@
  * are supplied to GCC (24 MHZ as XO and 32 KHZ as sleep clock), and to PCS
  * with 31.25 MHZ.
  *
+ * On the IPQ5424 SoC, there is an output clock from CMN PLL to PPE at 375 MHZ,
+ * and an output clock to NSS at 300 MHZ. The other output clocks from CMN PLL
+ * on IPQ5424 are the same as IPQ9574.
+ *
  *               +---------+
  *               |   GCC   |
  *               +--+---+--+
@@ -115,6 +119,20 @@ static const struct cmn_pll_fixed_output_clk ipq9574_output_clks[] = {
 	CLK_PLL_OUTPUT(ETH1_50MHZ_CLK, "eth1-50mhz", 50000000UL),
 	CLK_PLL_OUTPUT(ETH2_50MHZ_CLK, "eth2-50mhz", 50000000UL),
 	CLK_PLL_OUTPUT(ETH_25MHZ_CLK, "eth-25mhz", 25000000UL),
+	{ /* Sentinel */ },
+};
+
+static const struct cmn_pll_fixed_output_clk ipq5424_output_clks[] = {
+	CLK_PLL_OUTPUT(XO_24MHZ_CLK, "xo-24mhz", 24000000UL),
+	CLK_PLL_OUTPUT(SLEEP_32KHZ_CLK, "sleep-32khz", 32000UL),
+	CLK_PLL_OUTPUT(PCS_31P25MHZ_CLK, "pcs-31p25mhz", 31250000UL),
+	CLK_PLL_OUTPUT(NSS_300MHZ_CLK, "nss-300mhz", 300000000UL),
+	CLK_PLL_OUTPUT(PPE_375MHZ_CLK, "ppe-375mhz", 375000000UL),
+	CLK_PLL_OUTPUT(ETH0_50MHZ_CLK, "eth0-50mhz", 50000000UL),
+	CLK_PLL_OUTPUT(ETH1_50MHZ_CLK, "eth1-50mhz", 50000000UL),
+	CLK_PLL_OUTPUT(ETH2_50MHZ_CLK, "eth2-50mhz", 50000000UL),
+	CLK_PLL_OUTPUT(ETH_25MHZ_CLK, "eth-25mhz", 25000000UL),
+	{ /* Sentinel */ },
 };
 
 /*
@@ -297,7 +315,7 @@ static struct clk_hw *ipq_cmn_pll_clk_hw_register(struct platform_device *pdev)
 
 static int ipq_cmn_pll_register_clks(struct platform_device *pdev)
 {
-	const struct cmn_pll_fixed_output_clk *fixed_clk;
+	const struct cmn_pll_fixed_output_clk *p, *fixed_clk;
 	struct clk_hw_onecell_data *hw_data;
 	struct device *dev = &pdev->dev;
 	struct clk_hw *cmn_pll_hw;
@@ -305,8 +323,13 @@ static int ipq_cmn_pll_register_clks(struct platform_device *pdev)
 	struct clk_hw *hw;
 	int ret, i;
 
-	fixed_clk = ipq9574_output_clks;
-	num_clks = ARRAY_SIZE(ipq9574_output_clks);
+	fixed_clk = device_get_match_data(dev);
+	if (!fixed_clk)
+		return -EINVAL;
+
+	num_clks = 0;
+	for (p = fixed_clk; p->name; p++)
+		num_clks++;
 
 	hw_data = devm_kzalloc(dev, struct_size(hw_data, hws, num_clks + 1),
 			       GFP_KERNEL);
@@ -415,7 +438,8 @@ static const struct dev_pm_ops ipq_cmn_pll_pm_ops = {
 };
 
 static const struct of_device_id ipq_cmn_pll_clk_ids[] = {
-	{ .compatible = "qcom,ipq9574-cmn-pll", },
+	{ .compatible = "qcom,ipq9574-cmn-pll", .data = &ipq9574_output_clks },
+	{ .compatible = "qcom,ipq5424-cmn-pll", .data = &ipq5424_output_clks },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, ipq_cmn_pll_clk_ids);

-- 
2.34.1