linux-kernel - [PATCH 2/3] phy: rockchip: inno-usb2: add phy definition for rk3036

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Message-ID: <20250503201512.991277-3-heiko@sntech.de>
Date: Sat,  3 May 2025 22:15:11 +0200
From: Heiko Stuebner <heiko@...ech.de>
To: vkoul@...nel.org,
	kishon@...nel.org
Cc: robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	heiko@...ech.de,
	linux-phy@...ts.infradead.org,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH 2/3] phy: rockchip: inno-usb2: add phy definition for rk3036

The usb2phy on rk3036 is very similar to rk3128 but not 100% identical.
While most registers and bits are the same, a small fraction did get moved
around.

So we can re-use the phy-tuning function, but need a new set a bits.
The biggest change might be that the phy on rk3036 does not support the
charger detection, that rk3128 (and newer phys) have.

Signed-off-by: Heiko Stuebner <heiko@...ech.de>
---
 drivers/phy/rockchip/phy-rockchip-inno-usb2.c | 32 +++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/drivers/phy/rockchip/phy-rockchip-inno-usb2.c b/drivers/phy/rockchip/phy-rockchip-inno-usb2.c
index b5e6a864deeb..32fdd64d7c2a 100644
--- a/drivers/phy/rockchip/phy-rockchip-inno-usb2.c
+++ b/drivers/phy/rockchip/phy-rockchip-inno-usb2.c
@@ -1583,6 +1583,37 @@ static int rk3588_usb2phy_tuning(struct rockchip_usb2phy *rphy)
 	return ret;
 }
 
+static const struct rockchip_usb2phy_cfg rk3036_phy_cfgs[] = {
+	{
+		.reg = 0x17c,
+		.num_ports	= 2,
+		.phy_tuning	= rk3128_usb2phy_tuning,
+		.clkout_ctl	= { 0x017c, 11, 11, 1, 0 },
+		.port_cfgs	= {
+			[USB2PHY_PORT_OTG] = {
+				.phy_sus	= { 0x017c, 8, 0, 0, 0x1d1 },
+				.bvalid_det_en	= { 0x017c, 14, 14, 0, 1 },
+				.bvalid_det_st	= { 0x017c, 15, 15, 0, 1 },
+				.bvalid_det_clr	= { 0x017c, 15, 15, 0, 1 },
+				.ls_det_en	= { 0x017c, 12, 12, 0, 1 },
+				.ls_det_st	= { 0x017c, 13, 13, 0, 1 },
+				.ls_det_clr	= { 0x017c, 13, 13, 0, 1 },
+				.utmi_bvalid	= { 0x014c, 8, 8, 0, 1 },
+				.utmi_id	= { 0x014c, 11, 11, 0, 1 },
+				.utmi_ls	= { 0x014c, 10, 9, 0, 1 },
+
+			},
+			[USB2PHY_PORT_HOST] = {
+				.phy_sus	= { 0x0194, 8, 0, 0, 0x1d1 },
+				.ls_det_en	= { 0x0194, 14, 14, 0, 1 },
+				.ls_det_st	= { 0x0194, 15, 15, 0, 1 },
+				.ls_det_clr	= { 0x0194, 15, 15, 0, 1 }
+			}
+		},
+	},
+	{ /* sentinel */ }
+};
+
 static const struct rockchip_usb2phy_cfg rk3128_phy_cfgs[] = {
 	{
 		.reg = 0x17c,
@@ -2204,6 +2235,7 @@ static const struct rockchip_usb2phy_cfg rv1108_phy_cfgs[] = {
 
 static const struct of_device_id rockchip_usb2phy_dt_match[] = {
 	{ .compatible = "rockchip,px30-usb2phy", .data = &rk3328_phy_cfgs },
+	{ .compatible = "rockchip,rk3036-usb2phy", .data = &rk3036_phy_cfgs },
 	{ .compatible = "rockchip,rk3128-usb2phy", .data = &rk3128_phy_cfgs },
 	{ .compatible = "rockchip,rk3228-usb2phy", .data = &rk3228_phy_cfgs },
 	{ .compatible = "rockchip,rk3308-usb2phy", .data = &rk3308_phy_cfgs },
-- 
2.47.2