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From: Jerome Pouiller <Jerome.Pouiller@silabs.com>
To: linux-wireless@vger.kernel.org, netdev@vger.kernel.org
Cc: devel@driverdev.osuosl.org, devicetree@vger.kernel.org,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	linux-kernel@vger.kernel.org, Rob Herring <robh+dt@kernel.org>,
	"David S . Miller" <davem@davemloft.net>,
	Kalle Valo <kvalo@codeaurora.org>
Subject: [PATCH 01/23] dt-bindings: introduce silabs,wfx.yaml
Date: Mon, 12 Oct 2020 12:46:26 +0200
Message-ID: <20201012104648.985256-2-Jerome.Pouiller@silabs.com> (raw)
In-Reply-To: <20201012104648.985256-1-Jerome.Pouiller@silabs.com>

From: Jérôme Pouiller <jerome.pouiller@silabs.com>

Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
---
 .../bindings/net/wireless/silabs,wfx.yaml     | 125 ++++++++++++++++++
 1 file changed, 125 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/net/wireless/silabs,wfx.yaml

diff --git a/Documentation/devicetree/bindings/net/wireless/silabs,wfx.yaml b/Documentation/devicetree/bindings/net/wireless/silabs,wfx.yaml
new file mode 100644
index 000000000000..43b5630c0407
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/wireless/silabs,wfx.yaml
@@ -0,0 +1,125 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+# Copyright (c) 2020, Silicon Laboratories, Inc.
+%YAML 1.2
+---
+
+$id: http://devicetree.org/schemas/net/wireless/silabs,wfx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Silicon Labs WFxxx devicetree bindings
+
+maintainers:
+  - Jérôme Pouiller <jerome.pouiller@silabs.com>
+
+description:
+  The WFxxx chip series can be connected via SPI or via SDIO.
+
+  For SDIO':'
+
+    The driver is able to detect a WFxxx chip on SDIO bus by matching its Vendor
+    ID and Product ID. However, driver will only provide limited features in
+    this case. Thus declaring WFxxx chip in device tree is recommended (and may
+    become mandatory in the future).
+
+    In addition, it is recommended to declare a mmc-pwrseq on SDIO host above
+    WFx. Without it, you may encounter issues with warm boot. The mmc-pwrseq
+    should be compatible with mmc-pwrseq-simple. Please consult
+    Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt for more
+    information.
+
+  For SPI':'
+
+    In add of the properties below, please consult
+    Documentation/devicetree/bindings/spi/spi-controller.yaml for optional SPI
+    related properties.
+
+  Note that in add of the properties below, the WFx driver also supports
+  `mac-address` and `local-mac-address` as described in
+  Documentation/devicetree/bindings/net/ethernet.txt
+
+properties:
+  compatible:
+    const: silabs,wf200
+  reg:
+    description:
+      When used on SDIO bus, <reg> must be set to 1. When used on SPI bus, it is
+      the chip select address of the device as defined in the SPI devices
+      bindings.
+    maxItems: 1
+  spi-max-frequency:
+    description: (SPI only) Maximum SPI clocking speed of device in Hz.
+    maxItems: 1
+  interrupts:
+    description: The interrupt line. Triggers IRQ_TYPE_LEVEL_HIGH and
+      IRQ_TYPE_EDGE_RISING are both supported by the chip and the driver. When
+      SPI is used, this property is required. When SDIO is used, the "in-band"
+      interrupt provided by the SDIO bus is used unless an interrupt is defined
+      in the Device Tree.
+    maxItems: 1
+  reset-gpios:
+    description: (SPI only) Phandle of gpio that will be used to reset chip
+      during probe. Without this property, you may encounter issues with warm
+      boot. (For legacy purpose, the gpio in inverted when compatible ==
+      "silabs,wfx-spi")
+
+      For SDIO, the reset gpio should declared using a mmc-pwrseq.
+    maxItems: 1
+  wakeup-gpios:
+    description: Phandle of gpio that will be used to wake-up chip. Without this
+      property, driver will disable most of power saving features.
+    maxItems: 1
+  config-file:
+    description: Use an alternative file as PDS. Default is `wf200.pds`. Only
+      necessary for development/debug purpose.
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    spi0 {
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        wfx@0 {
+            compatible = "silabs,wf200";
+            pinctrl-names = "default";
+            pinctrl-0 = <&wfx_irq &wfx_gpios>;
+            reg = <0>;
+            interrupts-extended = <&gpio 16 IRQ_TYPE_EDGE_RISING>;
+            wakeup-gpios = <&gpio 12 GPIO_ACTIVE_HIGH>;
+            reset-gpios = <&gpio 13 GPIO_ACTIVE_LOW>;
+            spi-max-frequency = <42000000>;
+        };
+    };
+
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    wfx_pwrseq: wfx_pwrseq {
+        compatible = "mmc-pwrseq-simple";
+        pinctrl-names = "default";
+        pinctrl-0 = <&wfx_reset>;
+        reset-gpios = <&gpio 13 GPIO_ACTIVE_LOW>;
+    };
+
+    mmc0 {
+        mmc-pwrseq = <&wfx_pwrseq>;
+        #address-cells = <1>;
+        #size-cells = <0>;
+
+        mmc@1 {
+            compatible = "silabs,wf200";
+            pinctrl-names = "default";
+            pinctrl-0 = <&wfx_wakeup>;
+            reg = <1>;
+            wakeup-gpios = <&gpio 12 GPIO_ACTIVE_HIGH>;
+        };
+    };
+...
-- 
2.28.0

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Thread overview: 35+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-12 10:46 [PATCH 00/23] wfx: get out from the staging area Jerome Pouiller
2020-10-12 10:46 ` Jerome Pouiller [this message]
2020-10-13 16:49   ` [PATCH 01/23] dt-bindings: introduce silabs,wfx.yaml Rob Herring
2020-10-14 13:49     ` Jérôme Pouiller
2020-11-02 15:58       ` Kalle Valo
2020-10-12 10:46 ` [PATCH 02/23] wfx: add Makefile/Kconfig Jerome Pouiller
2020-10-12 10:46 ` [PATCH 03/23] wfx: add wfx.h Jerome Pouiller
2020-10-12 10:46 ` [PATCH 04/23] wfx: add main.c/main.h Jerome Pouiller
2020-10-12 10:46 ` [PATCH 05/23] wfx: add bus.h Jerome Pouiller
2020-10-12 10:46 ` [PATCH 06/23] wfx: add bus_spi.c Jerome Pouiller
2020-10-12 10:46 ` [PATCH 07/23] wfx: add bus_sdio.c Jerome Pouiller
2020-10-13 20:11   ` Pali Rohár
2020-10-14 11:52     ` Jérôme Pouiller
2020-10-14 12:43       ` Pali Rohár
2020-10-15 14:03         ` Jérôme Pouiller
2020-10-16 11:54           ` Ulf Hansson
2020-11-02 16:02             ` Kalle Valo
2020-10-16 11:30   ` Ulf Hansson
2020-10-16 12:16     ` Jérôme Pouiller
2020-10-12 10:46 ` [PATCH 08/23] wfx: add hwio.c/hwio.h Jerome Pouiller
2020-10-12 10:46 ` [PATCH 09/23] wfx: add fwio.c/fwio.h Jerome Pouiller
2020-10-12 10:46 ` [PATCH 10/23] wfx: add bh.c/bh.h Jerome Pouiller
2020-10-12 10:46 ` [PATCH 11/23] wfx: add hif_api_*.h Jerome Pouiller
2020-10-12 10:46 ` [PATCH 12/23] wfx: add hif_tx*.c/hif_tx*.h Jerome Pouiller
2020-10-12 10:46 ` [PATCH 13/23] wfx: add key.c/key.h Jerome Pouiller
2020-10-12 10:46 ` [PATCH 14/23] wfx: add hif_rx.c/hif_rx.h Jerome Pouiller
2020-10-12 10:46 ` [PATCH 15/23] wfx: add data_rx.c/data_rx.h Jerome Pouiller
2020-10-12 10:46 ` [PATCH 16/23] wfx: add queue.c/queue.h Jerome Pouiller
2020-10-12 10:46 ` [PATCH 17/23] wfx: add data_tx.c/data_tx.h Jerome Pouiller
2020-10-12 10:46 ` [PATCH 18/23] wfx: add sta.c/sta.h Jerome Pouiller
2020-10-12 10:46 ` [PATCH 19/23] wfx: add scan.c/scan.h Jerome Pouiller
2020-10-12 10:46 ` [PATCH 20/23] wfx: add debug.c/debug.h Jerome Pouiller
2020-10-12 10:46 ` [PATCH 21/23] wfx: add traces.h Jerome Pouiller
2020-10-12 10:46 ` [PATCH 22/23] wfx: remove from the staging area Jerome Pouiller
2020-10-12 10:46 ` [PATCH 23/23] wfx: get out " Jerome Pouiller

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