[PATCH v5 1/2] dt: bindings: add MARVELL's sd8xxx wireless device
From: Amitkumar Karwar <hidden>
Date: 2016-03-18 11:03:51
Also in:
linux-wireless
Subsystem:
networking drivers (wireless), open firmware and flattened device tree bindings, the rest · Maintainers:
Johannes Berg, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
From: Xinming Hu <redacted>
Add device tree binding documentation for MARVELL's sd8xxx
(sd8897 and sd8997) wlan chip.
Signed-off-by: Xinming Hu <redacted>
Signed-off-by: Amitkumar Karwar <redacted>
---
Listing changelist for both 1/2 and 2/2 patches
v3: Don't update adapter->dt_node if mwifiex_plt_dev is NULL
v4: a)Corrected the 'name' and 'compatible' property names.(Arnd Bergmann and Rob
Herring)
b)Patch description wraped in 72 columns(Rob Herring)
c)Moved DT binding file to bindings/net/wireless/(Rob Herring)
d)Renamed "mwifiex,chip-gpio" to "marvell,wakeup-gpios"(Rob Herring/
Arnd Bergmann)
e)Replaced #ifdef with __maybe_unused(Arnd Bergmann)
v5: a)Removed wildcards from compatible string(Arnd Bergmann)
b)Prepared single patch for all binding changes(Rob Herring)
c)Specified our node as a subnode of SDIO controller. With this approach, we
don't need to register new platform driver. (Rob herring)
---
.../bindings/net/wireless/marvell-sd8xxx.txt | 56 ++++++++++++++++++++++
1 file changed, 56 insertions(+)
create mode 100644 Documentation/devicetree/bindings/net/wireless/marvell-sd8xxx.txt
diff --git a/Documentation/devicetree/bindings/net/wireless/marvell-sd8xxx.txt b/Documentation/devicetree/bindings/net/wireless/marvell-sd8xxx.txt
new file mode 100644
index 0000000..c43d488
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/wireless/marvell-sd8xxx.txt@@ -0,0 +1,56 @@ +Marvell 8897/8997 (sd8897/sd8997) SDIO devices +------ + +This node provides properties for controlling the marvell sdio wireless device. +The node is expected to be specified as a child node to the SDIO controller that +connects the device to the system. + +Required properties: + + - compatible : should be one of the following: + * "marvell,sd8897" + * "marvell,sd8997" + +Optional properties: + + - marvell,caldata* : A series of properties with marvell,caldata prefix, + represent Calibration data downloaded to the device during + initialization. This is an array of unsigned values. + - marvell,wakeup-pin : 'wakeuppin' is a wakeup pin number of wifi chip which will + be configured to firmware. firmware will wakeup host side use + the pin during suspend/resume stage. + - interrupt-parent: phandle of the parent interrupt controller + - interrupts : interrupt pin number to the cpu. driver will request an irq based on + this interrupt number. during system suspend, the irq will be enabled + as system wakeup source, so that the wifi chip can wakeup host + platform under certain condition. during system resume, the irq will + be disabled to make sure unnecessary interrupt is not received. + +Example: + +Tx power limit calibration data is configured in below example. +The calibration data is an array of unsigned values, the length +can vary between hw versions. +IRQ pin 38 is used as system wakeup source interrupt. wakeup pin 3 is configured +so that firmware can wakeup host using this device side pin. + +&mmc3 { + status = "okay"; + vmmc-supply = <&wlan_en_reg>; + bus-width = <4>; + cap-power-off-card; + keep-power-in-suspend; + + #address-cells = <1>; + #size-cells = <0>; + mwifiex: mwifiex@3 { + compatible = "marvell,sd8897"; + reg = <1>; + interrupt-parent = <&pio>; + interrupts = <38 IRQ_TYPE_LEVEL_LOW>; + + marvell,caldata_00_txpwrlimit_2g_cfg_set = /bits/ 8 < + 0x01 0x00 0x06 0x00 0x08 0x02 0x89 0x01>; + marvell,wakeup-pin = <3>; + }; +};
--
1.8.1.4
--
To unsubscribe from this list: send the line "unsubscribe linux-wireless" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at http://vger.kernel.org/majordomo-info.html