linux-kernel - [PATCH V4 2/4] phy: qcom-m31: Add compatible, phy init sequence for IPQ5018

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Message-ID: <20230904063635.24975-3-quic_nsekar@quicinc.com>
Date:   Mon, 4 Sep 2023 12:06:33 +0530
From:   Nitheesh Sekar <quic_nsekar@...cinc.com>
To:     <agross@...nel.org>, <andersson@...nel.org>,
        <konrad.dybcio@...aro.org>, <vkoul@...nel.org>,
        <kishon@...nel.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <conor+dt@...nel.org>,
        <gregkh@...uxfoundation.org>, <quic_srichara@...cinc.com>,
        <quic_varada@...cinc.com>, <quic_wcheng@...cinc.com>,
        <linux-arm-msm@...r.kernel.org>, <linux-phy@...ts.infradead.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-usb@...r.kernel.org>
CC:     Nitheesh Sekar <quic_nsekar@...cinc.com>
Subject: [PATCH V4 2/4] phy: qcom-m31: Add compatible, phy init sequence for IPQ5018

Add phy init sequence and compatible string for IPQ5018
chipset.

Signed-off-by: Nitheesh Sekar <quic_nsekar@...cinc.com>
---
V4:
	Add C99 initializers.
	Write 0 register values.
V3:
	Dropped 0 delay inits.
	Added static const type for m31_ipq5018_regs.
V2:
	Updated the commit message.
---
 drivers/phy/qualcomm/phy-qcom-m31.c | 51 +++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)

diff --git a/drivers/phy/qualcomm/phy-qcom-m31.c b/drivers/phy/qualcomm/phy-qcom-m31.c
index ed08072ca032..03b1c56e0f55 100644
--- a/drivers/phy/qualcomm/phy-qcom-m31.c
+++ b/drivers/phy/qualcomm/phy-qcom-m31.c
@@ -82,6 +82,50 @@ struct m31_priv_data {
 	unsigned int			nregs;
 };
 
+static const struct m31_phy_regs m31_ipq5018_regs[] = {
+	{
+		.off = USB_PHY_CFG0,
+		.val = UTMI_PHY_OVERRIDE_EN
+	},
+	{
+		.off = USB_PHY_UTMI_CTRL5,
+		.val = POR_EN,
+		.delay = 15
+	},
+	{
+		.off = USB_PHY_FSEL_SEL,
+		.val = FREQ_SEL
+	},
+	{
+		.off = USB_PHY_HS_PHY_CTRL_COMMON0,
+		.val = COMMONONN | FSEL | RETENABLEN
+	},
+	{
+		.off = USB_PHY_REFCLK_CTRL,
+		.val = CLKCORE
+	},
+	{
+		.off = USB_PHY_UTMI_CTRL5,
+		.val = POR_EN
+	},
+	{
+		.off = USB_PHY_HS_PHY_CTRL2,
+		.val = USB2_SUSPEND_N_SEL | USB2_SUSPEND_N | USB2_UTMI_CLK_EN
+	},
+	{
+		.off = USB_PHY_UTMI_CTRL5,
+		.val = 0x0
+	},
+	{
+		.off = USB_PHY_HS_PHY_CTRL2,
+		.val = USB2_SUSPEND_N | USB2_UTMI_CLK_EN
+	},
+	{
+		.off = USB_PHY_CFG0,
+		.val = 0x0
+	},
+};
+
 struct m31_phy_regs m31_ipq5332_regs[] = {
 	{
 		USB_PHY_CFG0,
@@ -268,6 +312,12 @@ static int m31usb_phy_probe(struct platform_device *pdev)
 	return PTR_ERR_OR_ZERO(phy_provider);
 }
 
+static const struct m31_priv_data m31_ipq5018_data = {
+	.ulpi_mode = false,
+	.regs = m31_ipq5018_regs,
+	.nregs = ARRAY_SIZE(m31_ipq5018_regs),
+};
+
 static const struct m31_priv_data m31_ipq5332_data = {
 	.ulpi_mode = false,
 	.regs = m31_ipq5332_regs,
@@ -275,6 +325,7 @@ static const struct m31_priv_data m31_ipq5332_data = {
 };
 
 static const struct of_device_id m31usb_phy_id_table[] = {
+	{ .compatible = "qcom,ipq5018-usb-hsphy", .data = &m31_ipq5018_data },
 	{ .compatible = "qcom,ipq5332-usb-hsphy", .data = &m31_ipq5332_data },
 	{ },
 };
-- 
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