kernel: sweep — usb2phy port (USB host up) + saradc data port

usb2phy: ported the RV1106 inno-usb2 phy config to 6.18 (rv1106_usb2phy_cfg;
fields map 1:1 except utmi_iddig->utmi_id and chg_mode->opmode; 5.10-only
iddig_output/en/bvalid_grf_sel dropped; phy_tuning left off, guarded so safe).
With PHY_ROCKCHIP_INNO_USB2=y + the u2phy/usbdrd/dwc3 DT enabled, verified on
warden-c8a3: the DWC3 comes up as xhci-hcd @ 0xffb00000 — USB host works. eth0
gadget just needs dr_mode=peripheral.

saradc: added rv1106_saradc_data (2-ch v2, matches the vendor) + the native
compatible. Driver now matches; probe still returns -22 (a clk-rate/setup detail,
not the data) — TODO.

Also captured: the growing board dts (USB nodes), the port fragments under usb/
and adc/. DRIVER-PARITY.md updated: ~14 drivers now at parity on 6.18.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017wB8KB3MMQztRDXCMCkPrf

kernel/rv1106-enablement/DRIVER-PARITY.md

@@ -19,13 +19,13 @@ c8a3, not just compiled.
 | I2C (dw-apb, ff460000=i2c3) | ff460000.i2c | mainline | ✅ batch1 (i2c-3) |
 | watchdog (dw-wdt, ff5a0000) | ff5a0000.watchdog | mainline | ✅ batch1 (watchdog0) |
 | thermal governor | rockchip_thermal | mainline | 🔨 gov up; tsadc node TODO |
-| SARADC (ff3c0000) | ff3c0000.saradc | mainline (no rv1106 compat) | ⬜ needs compat fallback |
+| SARADC (ff3c0000) | ff3c0000.saradc | ported (2-ch v2 data) | 🔨 driver added; probe -22 (clk-rate) |
 | GPIO_SYSFS (legacy /sys/class/gpio) | — | mainline (config) | ⬜ goodix script needs it |
 | PWM (rockchip) | — | mainline (=m) | ⬜ batch2 =y (backlight) |
 | RTC (rv1106-rtc) | — | **no mainline driver** | ⬜ port (low prio) |
-| USB2 phy (inno, rv1106) | rockchip_usb2phy_* | mainline (no rv1106 data) | ⬜ port (data + tuning) |
+| USB2 phy (inno, rv1106) | rockchip_usb2phy_* | ported (data, no tuning) | ✅ probes → USB up |
-| USB OTG gadget (DWC3, eth0) | eth0 | mainline dwc3 (needs phy) | ⬜ M6 (after phy) |
+| USB host (DWC3→xhci, ffb00000) | xhci-hcd:usb1 | mainline | ✅ xhci host registered |
-| USB host (xhci, usb1) | xhci-hcd:usb1 | mainline | ⬜ M6 |
+| USB OTG gadget (DWC3, eth0) | eth0 | mainline dwc3 | 🔨 host works; eth0 needs dr_mode=peripheral |
 | crypto (aes/ccm/ctr/arc4) | modules | mainline | ⬜ batch2 (config =y) |
 | PSCI node (removed) | — | — | ✅ deleted (no secure monitor → SMC fault) |
 | VOP display (ff990000) | ff990000.vop | ported (rv1126 sibling) | 🔨 binds+DRM+card0; connector WIP |

kernel/rv1106-enablement/adc/rv1106_saradc_data.c.frag

@@ -0,0 +1,13 @@
+/* RV1106: a 2-channel v2 SARADC (ported from the vendor driver). */
+static const struct iio_chan_spec rockchip_rv1106_saradc_iio_channels[] = {
+	SARADC_CHANNEL(0, "adc0", 10),
+	SARADC_CHANNEL(1, "adc1", 10),
+};
+
+static const struct rockchip_saradc_data rv1106_saradc_data = {
+	.channels = rockchip_rv1106_saradc_iio_channels,
+	.num_channels = ARRAY_SIZE(rockchip_rv1106_saradc_iio_channels),
+	.clk_rate = 1000000,
+	.start = rockchip_saradc_start_v2,
+	.read = rockchip_saradc_read_v2,
+};

kernel/rv1106-enablement/dts/rv1106-warden.dts

@@ -128,3 +128,21 @@
 &rgb {
 	status = "disabled";
 };
+
+/* --- sweep: USB OTG (eth0 gadget / host) via the ported inno-usb2 phy --- */
+&u2phy {
+	status = "okay";
+};
+
+&u2phy_otg {
+	status = "okay";
+};
+
+&usbdrd {
+	status = "okay";
+};
+
+&usbdrd_dwc3 {
+	status = "okay";
+	dr_mode = "otg";
+};

kernel/rv1106-enablement/usb/rv1106_usb2phy_cfg.c.frag

@@ -0,0 +1,78 @@
+ * RV1106 USB2 PHY: single OTG port at 0xff3e0000 (ported from the vendor driver;
+ * fields map 1:1 to 6.18 except utmi_iddig -> utmi_id, and the 5.10-only
+ * iddig_output/iddig_en/bvalid_grf_sel are dropped). Signal-quality phy_tuning is
+ * left off for now (guarded, so NULL is safe) — the phy is functional without it.
+ */
+static const struct rockchip_usb2phy_cfg rv1106_phy_cfgs[] = {
+	{
+		.reg = 0xff3e0000,
+		.num_ports	= 1,
+		.clkout_ctl	= { 0x0058, 4, 4, 1, 0 },
+		.port_cfgs	= {
+			[USB2PHY_PORT_OTG] = {
+				.phy_sus	= { 0x0050, 8, 0, 0, 0x1d1 },
+				.bvalid_det_en	= { 0x0100, 2, 2, 0, 1 },
+				.bvalid_det_st	= { 0x0104, 2, 2, 0, 1 },
+				.bvalid_det_clr = { 0x0108, 2, 2, 0, 1 },
+				.idfall_det_en	= { 0x0100, 5, 5, 0, 1 },
+				.idfall_det_st	= { 0x0104, 5, 5, 0, 1 },
+				.idfall_det_clr = { 0x0108, 5, 5, 0, 1 },
+				.idrise_det_en	= { 0x0100, 4, 4, 0, 1 },
+				.idrise_det_st	= { 0x0104, 4, 4, 0, 1 },
+				.idrise_det_clr = { 0x0108, 4, 4, 0, 1 },
+				.ls_det_en	= { 0x0100, 0, 0, 0, 1 },
+				.ls_det_st	= { 0x0104, 0, 0, 0, 1 },
+				.ls_det_clr	= { 0x0108, 0, 0, 0, 1 },
+				.utmi_avalid	= { 0x0060, 10, 10, 0, 1 },
+				.utmi_bvalid	= { 0x0060, 9, 9, 0, 1 },
+				.utmi_id	= { 0x0060, 6, 6, 0, 1 },
+				.utmi_ls	= { 0x0060, 5, 4, 0, 1 },
+			},
+		},
+		.chg_det = {
+			.opmode		= { 0x0050, 8, 0, 0, 0x1d7 },
+			.cp_det		= { 0x0060, 13, 13, 0, 1 },
+			.dcp_det	= { 0x0060, 12, 12, 0, 1 },
+			.dp_det		= { 0x0060, 14, 14, 0, 1 },
+			.idm_sink_en	= { 0x0058, 8, 8, 0, 1 },
+			.idp_sink_en	= { 0x0058, 7, 7, 0, 1 },
+			.idp_src_en	= { 0x0058, 9, 9, 0, 1 },
+			.rdm_pdwn_en	= { 0x0058, 10, 10, 0, 1 },
+			.vdm_src_en	= { 0x0058, 12, 12, 0, 1 },
+			.vdp_src_en	= { 0x0058, 11, 11, 0, 1 },
+		},
+	},
+	{ /* sentinel */ }
+};
+
+static const struct of_device_id rockchip_usb2phy_dt_match[] = {
+	{ .compatible = "rockchip,rv1106-usb2phy", .data = &rv1106_phy_cfgs },
+	{ .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 },
+	{ .compatible = "rockchip,rk3328-usb2phy", .data = &rk3328_phy_cfgs },
+	{ .compatible = "rockchip,rk3366-usb2phy", .data = &rk3366_phy_cfgs },
+	{ .compatible = "rockchip,rk3399-usb2phy", .data = &rk3399_phy_cfgs },
+	{ .compatible = "rockchip,rk3562-usb2phy", .data = &rk3562_phy_cfgs },
+	{ .compatible = "rockchip,rk3568-usb2phy", .data = &rk3568_phy_cfgs },
+	{ .compatible = "rockchip,rk3576-usb2phy", .data = &rk3576_phy_cfgs },
+	{ .compatible = "rockchip,rk3588-usb2phy", .data = &rk3588_phy_cfgs },
+	{ .compatible = "rockchip,rv1108-usb2phy", .data = &rv1108_phy_cfgs },
+	{}
+};
+MODULE_DEVICE_TABLE(of, rockchip_usb2phy_dt_match);
+
+static struct platform_driver rockchip_usb2phy_driver = {
+	.probe		= rockchip_usb2phy_probe,
+	.driver		= {
+		.name	= "rockchip-usb2phy",
+		.of_match_table = rockchip_usb2phy_dt_match,
+	},
+};
+module_platform_driver(rockchip_usb2phy_driver);
+
+MODULE_AUTHOR("Frank Wang <frank.wang@rock-chips.com>");
+MODULE_DESCRIPTION("Rockchip USB2.0 PHY driver");
+MODULE_LICENSE("GPL v2");