[PATCH v3 1/4] dt: bindings: add bindings for Broadcom bcm43xx sdio devices
Hans de Goede
hdegoede at redhat.com
Mon Jun 30 02:09:15 PDT 2014
Hi,
On 06/30/2014 10:31 AM, Arend van Spriel wrote:
> On 29-06-14 16:16, Hans de Goede wrote:
>> From: Arend van Spriel <arend at broadcom.com>
>>
>> The Broadcom bcm43xx sdio devices are fullmac devices that may be
>> integrated in ARM platforms. Currently, the brcmfmac driver for
>> these devices support use of platform data. This patch specifies
>> the bindings that allow this platform data to be expressed in the
>> devicetree.
>>
>> Reviewed-by: Hante Meuleman <meuleman at broadcom.com>
>> Reviewed-by: Franky (Zhenhui) Lin <frankyl at broadcom.com>
>> Reviewed-by: Daniel (Deognyoun) Kim <dekim at broadcom.com>
>> Reviewed-by: Pieter-Paul Giesberts <pieterpg at broadcom.com>
>> Signed-off-by: Arend van Spriel <arend at broadcom.com>
>> [hdegoede at redhat.com: drop clk / reg_on gpio handling, as there is no consensus
>> on how to handle this yet]
>> [hdegoede at redhat.com: move from bindings/staging to bindings]
>> Signed-off-by: Hans de Goede <hdegoede at redhat.com>
>> ---
>> .../bindings/net/wireless/brcm,bcm43xx-fmac.txt | 41 ++++++++++++++++++++++
>> 1 file changed, 41 insertions(+)
>> create mode 100644 Documentation/devicetree/bindings/net/wireless/brcm,bcm43xx-fmac.txt
>>
>> diff --git a/Documentation/devicetree/bindings/net/wireless/brcm,bcm43xx-fmac.txt b/Documentation/devicetree/bindings/net/wireless/brcm,bcm43xx-fmac.txt
>> new file mode 100644
>> index 0000000..5dbf169
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/net/wireless/brcm,bcm43xx-fmac.txt
>> @@ -0,0 +1,41 @@
>> +Broadcom BCM43xx Fullmac wireless SDIO devices
>> +
>> +This node provides properties for controlling the Broadcom 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 "brcm,bcm4329-fmac".
>> +
>> +Optional properties:
>> + - brcm,drive-strength : drive strength used for SDIO pins on device in mA
>> + (default = 6).
>> + - interrupt-parent : the phandle for the interrupt controller to which the
>> + device interrupts are connected.
>> + - interrupts : specifies attributes for the out-of-band interrupt (host-wake).
>> + When not specified the device will use in-band SDIO interrupts.
>> + - interrupt-names : name of the out-of-band interrupt, which must be set
>> + to "host-wake".
>> +
>> +Example:
>> +
>> +mmc3: mmc at 01c12000 {
>> + #address-cells = <1>;
>> + #size-cells = <0>;
>> +
>> + pinctrl-names = "default";
>> + pinctrl-0 = <&mmc3_pins_a>;
>> + vmmc-supply = <®_vmmc3>;
>> + bus-width = <4>;
>> + non-removable;
>> + status = "okay";
>> +
>> + brcmf: bcrmf at 1 {
>> + reg = <1>;
>
> I guess the reg property is needed to have this node linked to sdio func
> 1 dev, right?
Right.
> I would add it to the list of required properties above
> even if this behaviour is already described in a more generic binding.
Then we would also need to describe the need to add:
#address-cells = <1>;
#size-cells = <0>;
To the mmc-host node itself, I don't think that that really
belongs here, and thus the description of the reg property itself
also does not really belong here IMHO.
Regards,
Hans
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