netdev - Re: [PATCH 8/8] arm64: dts: rockchip: RockPro64: enable wifi module at sdio0

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Date:   Tue, 10 Dec 2019 11:08:18 +0100
From:   Soeren Moch <smoch@....de>
To:     Heiko Stübner <heiko@...ech.de>
Cc:     Kalle Valo <kvalo@...eaurora.org>, linux-wireless@...r.kernel.org,
        brcm80211-dev-list.pdl@...adcom.com,
        brcm80211-dev-list@...ress.com, netdev@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 8/8] arm64: dts: rockchip: RockPro64: enable wifi module
 at sdio0

Hi Heiko,

On 10.12.19 02:18, Heiko Stübner wrote:
> Hi Soeren,
>
> Am Dienstag, 10. Dezember 2019, 00:29:21 CET schrieb Soeren Moch:
>> On 10.12.19 00:08, Heiko Stübner wrote:
>>> Am Montag, 9. Dezember 2019, 23:38:22 CET schrieb Soeren Moch:
>>>> RockPro64 supports an Ampak AP6359SA based wifi/bt combo module.
>>>> The BCM4359/9 wifi controller in this module is connected to sdio0,
>>>> enable this interface.
>>>>
>>>> Signed-off-by: Soeren Moch <smoch@....de>
>>>> ---
>>>> Not sure where to place exactly the sdio0 node in the dts because
>>>> existing sd nodes are not sorted alphabetically.
>>>>
>>>> This last patch in this brcmfmac patch series probably should be picked
>>>> up by Heiko independently of the rest of this series. It was sent together
>>>> to show how this brcmfmac extension for 4359-sdio support with RSDB is
>>>> used and tested.
>>> node placement looks good so I can apply it, just a general questions
>>> I only got patch 8/8 are patches 1-7 relevant for this one and what are they?
>> Patches 1-7 are the patches to support the BCM4359 chipset with SDIO
>> interface in the linux brcmfmac net-wireless driver, see [1].
>>
>> So this patch series has 2 parts:
>> patches 1-7: add support for the wifi chipset in the wireless driver,
>> this has to go through net-wireless
>> patch 8: enable the wifi module with this chipset on RockPro64, this patch
> Thanks for the clarification :-) .
>
> As patch 8 "only" does the core sdio node, it doesn't really depend on the
> earlier ones and you can submit any uart-hooks for bluetooth once the
> other patches land I guess.
The uart part for bluetooth already is in: uart0.
However, I haven't tested if it really works.
>> If this was confusing, what would be the ideal way to post such series?
> I think every maintainer has some slightly different perspective on this,
> but personally I like getting the whole series to follow the discussion but
> also to just see when the driver-side changes get merged, as the dts-parts
> need to wait for that in a lot of cases.
OK, thanks.
I will add you for the whole series when sending a v2.

Soeren
>
> Heiko
>
>
>> [1] https://patchwork.kernel.org/project/linux-wireless/list/?series=213951
>>> Thanks
>>> Heiko
>>>
>>>
>>>> Cc: Heiko Stuebner <heiko@...ech.de>
>>>> Cc: Kalle Valo <kvalo@...eaurora.org>
>>>> Cc: linux-wireless@...r.kernel.org
>>>> Cc: brcm80211-dev-list.pdl@...adcom.com
>>>> Cc: brcm80211-dev-list@...ress.com
>>>> Cc: netdev@...r.kernel.org
>>>> Cc: linux-arm-kernel@...ts.infradead.org
>>>> Cc: linux-rockchip@...ts.infradead.org
>>>> Cc: linux-kernel@...r.kernel.org
>>>> ---
>>>>  .../boot/dts/rockchip/rk3399-rockpro64.dts    | 21 ++++++++++++-------
>>>>  1 file changed, 14 insertions(+), 7 deletions(-)
>>>>
>>>> diff --git a/arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dts b/arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dts
>>>> index 7f4b2eba31d4..9fa92790d6e0 100644
>>>> --- a/arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dts
>>>> +++ b/arch/arm64/boot/dts/rockchip/rk3399-rockpro64.dts
>>>> @@ -71,13 +71,6 @@
>>>>  		clock-names = "ext_clock";
>>>>  		pinctrl-names = "default";
>>>>  		pinctrl-0 = <&wifi_enable_h>;
>>>> -
>>>> -		/*
>>>> -		 * On the module itself this is one of these (depending
>>>> -		 * on the actual card populated):
>>>> -		 * - SDIO_RESET_L_WL_REG_ON
>>>> -		 * - PDN (power down when low)
>>>> -		 */
>>>>  		reset-gpios = <&gpio0 RK_PB2 GPIO_ACTIVE_LOW>;
>>>>  	};
>>>>
>>>> @@ -650,6 +643,20 @@
>>>>  	status = "okay";
>>>>  };
>>>>
>>>> +&sdio0 {
>>>> +	bus-width = <4>;
>>>> +	cap-sd-highspeed;
>>>> +	cap-sdio-irq;
>>>> +	disable-wp;
>>>> +	keep-power-in-suspend;
>>>> +	mmc-pwrseq = <&sdio_pwrseq>;
>>>> +	non-removable;
>>>> +	pinctrl-names = "default";
>>>> +	pinctrl-0 = <&sdio0_bus4 &sdio0_cmd &sdio0_clk>;
>>>> +	sd-uhs-sdr104;
>>>> +	status = "okay";
>>>> +};
>>>> +
>>>>  &sdmmc {
>>>>  	bus-width = <4>;
>>>>  	cap-sd-highspeed;
>>>> --
>>>> 2.17.1
>>>>
>>>
>>>
>>
>
>
>