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Diffstat (limited to 'target/linux/omap/patches-3.12/908-Documentation-dt-bindings-TI-WiLink-modules.patch')
| -rw-r--r-- | target/linux/omap/patches-3.12/908-Documentation-dt-bindings-TI-WiLink-modules.patch | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/target/linux/omap/patches-3.12/908-Documentation-dt-bindings-TI-WiLink-modules.patch b/target/linux/omap/patches-3.12/908-Documentation-dt-bindings-TI-WiLink-modules.patch new file mode 100644 index 0000000000..beee4c8c0c --- /dev/null +++ b/target/linux/omap/patches-3.12/908-Documentation-dt-bindings-TI-WiLink-modules.patch @@ -0,0 +1,102 @@ +From patchwork Tue Jul 30 20:21:08 2013 +Content-Type: text/plain; charset="utf-8" +MIME-Version: 1.0 +Content-Transfer-Encoding: 7bit +Subject: [v3] Documentation: dt: bindings: TI WiLink modules +From: Luciano Coelho <coelho@ti.com> +X-Patchwork-Id: 2835914 +Message-Id: <1375215668-29171-1-git-send-email-coelho@ti.com> +To: <devicetree@vger.kernel.org>, <linux-doc@vger.kernel.org> +Cc: <mturquette@linaro.org>, <mark.rutland@arm.com>, <balbi@ti.com>, + <grant.likely@linaro.org>, <rob.herring@calxeda.com>, + <linux-kernel@vger.kernel.org>, <linux-omap@vger.kernel.org>, + <linux-wireless@vger.kernel.org>, + <linux-arm-kernel@lists.infradead.org>, <tony@atomide.com>, + <nm@ti.com>, <laurent.pinchart@ideasonboard.com> +Date: Tue, 30 Jul 2013 23:21:08 +0300 + +Add device tree bindings documentation for the TI WiLink modules. +Currently only the WLAN part of the WiLink6, WiLink7 and WiLink8 +modules is supported. + +Signed-off-by: Luciano Coelho <coelho@ti.com> +Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> + +--- +In v3, use IRQ_TYPE_LEVEL_HIGH in the example, as suggested by Laurent. + + .../devicetree/bindings/net/wireless/ti-wilink.txt | 68 ++++++++++++++++++++++ + 1 file changed, 68 insertions(+) + create mode 100644 Documentation/devicetree/bindings/net/wireless/ti-wilink.txt + +--- /dev/null ++++ b/Documentation/devicetree/bindings/net/wireless/ti-wilink.txt +@@ -0,0 +1,68 @@ ++TI WiLink Wireless Modules Device Tree Bindings ++=============================================== ++ ++The WiLink modules provide wireless connectivity, such as WLAN, ++Bluetooth, FM and NFC. ++ ++There are several different modules available, which can be grouped by ++their generation: WiLink6, WiLink7 and WiLink8. WiLink4 is not ++currently supported with device tree. ++ ++Currently, only the WLAN portion of the modules is supported with ++device tree. ++ ++Required properties: ++-------------------- ++ ++- compatible: should be "ti,wilink6", "ti,wilink7" or "ti,wilink8" ++- interrupt-parent: the interrupt controller ++- interrupts: out-of-band WLAN interrupt ++ See the interrupt controller's bindings documentation for ++ detailed definition. ++ ++Optional properties: ++-------------------- ++ ++- clocks: list of clocks needed by the chip as follows: ++ ++ refclock: the internal WLAN reference clock frequency (required for ++ WiLink6 and WiLink7; not used for WiLink8). ++ ++ tcxoclock: the internal WLAN TCXO clock frequency (required for ++ WiLink7 not used for WiLink6 and WiLink8). ++ ++ The clocks must be defined and named accordingly. For example: ++ ++ clocks = <&refclock> ++ clock-names = "refclock"; ++ ++ refclock: refclock { ++ compatible = "ti,wilink-clock"; ++ #clock-cells = <0>; ++ clock-frequency = <38400000>; ++ }; ++ ++ Some modules that contain the WiLink chip provide clocks in the ++ module itself. In this case, we define a "ti,wilink-clock" as shown ++ above. But any other clock could in theory be used, so the proper ++ clock definition should be used. ++ ++ ++Example: ++-------- ++ ++Example definition that can be used in OMAP4 Panda: ++ ++wlan { ++ compatible = "ti,wilink6"; ++ interrupt-parent = <&gpio2>; ++ interrupts = <21 IRQ_TYPE_LEVEL_HIGH>; /* gpio line 53 */ ++ clocks = <&refclock>; ++ clock-names = "refclock"; ++ ++ refclock: refclock { ++ compatible = "ti,wilink-clock"; ++ #clock-cells = <0>; ++ clock-frequency = <38400000>; ++ }; ++}; |