linux-kernel - [PATCH v2 03/11] DTS: ARM: pandora-common: define wl1251 as child node of mmc3

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Date:   Sat, 19 Oct 2019 20:41:18 +0200
From:   "H. Nikolaus Schaller" <hns@...delico.com>
To:     Benoît Cousson <bcousson@...libre.com>,
        Tony Lindgren <tony@...mide.com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Russell King <linux@...linux.org.uk>,
        Ulf Hansson <ulf.hansson@...aro.org>,
        Kalle Valo <kvalo@...eaurora.org>,
        Mike Rapoport <rppt@...ux.ibm.com>,
        David Sterba <dsterba@...e.com>,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        Petr Mladek <pmladek@...e.com>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        "H. Nikolaus Schaller" <hns@...delico.com>,
        Kefeng Wang <wangkefeng.wang@...wei.com>,
        Yangtao Li <tiny.windzz@...il.com>,
        Alexios Zavras <alexios.zavras@...el.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        Allison Randal <allison@...utok.net>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        John Stultz <john.stultz@...aro.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>
Cc:     linux-omap@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mmc@...r.kernel.org, linux-wireless@...r.kernel.org,
        netdev@...r.kernel.org, letux-kernel@...nphoenux.org,
        kernel@...a-handheld.com, stable@...r.kernel.org
Subject: [PATCH v2 03/11] DTS: ARM: pandora-common: define wl1251 as child node of mmc3

Since v4.7 the dma initialization requires that there is a
device tree property for "rx" and "tx" channels which is
not provided by the pdata-quirks initialization.

By conversion of the mmc3 setup to device tree this will
finally allows to remove the OpenPandora wlan specific omap3
data-quirks.

Fixes: 81eef6ca9201 ("mmc: omap_hsmmc: Use dma_request_chan() for requesting DMA channel")

Signed-off-by: H. Nikolaus Schaller <hns@...delico.com>
Cc: <stable@...r.kernel.org> # 4.7.0
---
 arch/arm/boot/dts/omap3-pandora-common.dtsi | 37 +++++++++++++++++++--
 1 file changed, 35 insertions(+), 2 deletions(-)

diff --git a/arch/arm/boot/dts/omap3-pandora-common.dtsi b/arch/arm/boot/dts/omap3-pandora-common.dtsi
index ec5891718ae6..c595b3eb314d 100644
--- a/arch/arm/boot/dts/omap3-pandora-common.dtsi
+++ b/arch/arm/boot/dts/omap3-pandora-common.dtsi
@@ -226,6 +226,18 @@
 		gpio = <&gpio6 4 GPIO_ACTIVE_HIGH>;	/* GPIO_164 */
 	};
 
+	/* wl1251 wifi+bt module */
+	wlan_en: fixed-regulator-wg7210_en {
+		compatible = "regulator-fixed";
+		regulator-name = "vwlan";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		startup-delay-us = <50000>;
+		regulator-always-on;
+		enable-active-high;
+		gpio = <&gpio1 23 GPIO_ACTIVE_HIGH>;
+	};
+
 	/* wg7210 (wifi+bt module) 32k clock buffer */
 	wg7210_32k: fixed-regulator-wg7210_32k {
 		compatible = "regulator-fixed";
@@ -522,9 +534,30 @@
 	/*wp-gpios = <&gpio4 31 GPIO_ACTIVE_HIGH>;*/	/* GPIO_127 */
 };
 
-/* mmc3 is probed using pdata-quirks to pass wl1251 card data */
 &mmc3 {
-	status = "disabled";
+	vmmc-supply = <&wlan_en>;
+
+	bus-width = <4>;
+	non-removable;
+	ti,non-removable;
+	cap-power-off-card;
+
+	pinctrl-names = "default";
+	pinctrl-0 = <&mmc3_pins>;
+
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	wlan: wl1251@1 {
+		compatible = "ti,wl1251";
+
+		reg = <1>;
+
+		interrupt-parent = <&gpio1>;
+		interrupts = <21 IRQ_TYPE_LEVEL_HIGH>;	/* GPIO_21 */
+
+		ti,wl1251-has-eeprom;
+	};
 };
 
 /* bluetooth*/
-- 
2.19.1