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Subject[PATCH v3 10/12] ARM: dts: imx7d: cl-som-imx7: add WiLink8 WLAN support
Date
add / enable TI's WiLink8 WLAN module on SDIO2.

Notes:
* power is always enabled (because of bluetooth)
* the downstream delay of 70ms after power-on
doesn't seem to reliably work, hence it was
bumped to 700ms

Signed-off-by: André Draszik <git@andred.net>
Cc: Ilya Ledvich <ilya@compulab.co.il>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Shawn Guo <shawnguo@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: NXP Linux Team <linux-imx@nxp.com>
Cc: devicetree@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
---
arch/arm/boot/dts/imx7d-cl-som-imx7.dts | 60 +++++++++++++++++++++++++
1 file changed, 60 insertions(+)

diff --git a/arch/arm/boot/dts/imx7d-cl-som-imx7.dts b/arch/arm/boot/dts/imx7d-cl-som-imx7.dts
index a16cbb070a12..4cb36decef3d 100644
--- a/arch/arm/boot/dts/imx7d-cl-som-imx7.dts
+++ b/arch/arm/boot/dts/imx7d-cl-som-imx7.dts
@@ -28,6 +28,24 @@
compatible = "smsc,usb3503";
reset-gpios = <&pca9555 6 GPIO_ACTIVE_LOW>;
};
+
+ pwrseq_ti_wifi: ti-wifi-pwrseq {
+ compatible = "mmc-pwrseq-simple";
+ reset-gpios = <&pca9555 0 GPIO_ACTIVE_LOW>;
+ post-power-on-delay-ms = <700>;
+ /* 10μs during shutdown, but 60μs between two enables */
+ power-off-delay-us = "60";
+ };
+
+ reg_ti_wifi: regulator-ti-wifi {
+ compatible = "regulator-fixed";
+ regulator-name = "wilink-regulator";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ gpio = <&pca9555 9 GPIO_ACTIVE_HIGH>;
+ enable-active-high;
+ regulator-always-on;
+ };
};

&cpu0 {
@@ -232,6 +250,31 @@
status = "okay";
};

+&usdhc2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usdhc2>;
+ bus-width = <4>;
+ no-1-8-v;
+ keep-power-in-suspend;
+ wakeup-source;
+ vmmc-supply = <&reg_ti_wifi>;
+ mmc-pwrseq = <&pwrseq_ti_wifi>;
+ non-removable;
+ cap-power-off-card;
+ status = "okay";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+ wlcore: wlcore@2 {
+ compatible = "ti,wl1835";
+ reg = <2>;
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_usdhc2_wlcore>;
+ interrupt-parent = <&gpio1>;
+ interrupts = <15 IRQ_TYPE_LEVEL_HIGH>;
+ };
+};
+
&usdhc3 {
pinctrl-names = "default";
pinctrl-0 = <&pinctrl_usdhc3>;
@@ -308,6 +351,23 @@
>;
};

+ pinctrl_usdhc2: usdhc2grp {
+ fsl,pins = <
+ MX7D_PAD_SD2_CMD__SD2_CMD 0x59
+ MX7D_PAD_SD2_CLK__SD2_CLK 0x19
+ MX7D_PAD_SD2_DATA0__SD2_DATA0 0x59
+ MX7D_PAD_SD2_DATA1__SD2_DATA1 0x59
+ MX7D_PAD_SD2_DATA2__SD2_DATA2 0x59
+ MX7D_PAD_SD2_DATA3__SD2_DATA3 0x59
+ >;
+ };
+
+ pinctrl_usdhc2_wlcore: usdhc2wlcoregrp {
+ fsl,pins = <
+ MX7D_PAD_GPIO1_IO15__GPIO1_IO15 0x34
+ >;
+ };
+
pinctrl_usdhc3: usdhc3grp {
fsl,pins = <
MX7D_PAD_SD3_CMD__SD3_CMD 0x59
--
2.23.0.rc1
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