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

From: Heiko Stübner <[email-masked]>
Date: Tue, 10 Dec 2019 02:18:24 +0100

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 <[email-masked]>
> >> ---
> >> 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.

> 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.

Heiko

> [1] https://patchwork.kernel.org/project/linux-wireless/list/?series=213951
> >
> > Thanks
> > Heiko
> >
> >
> >> Cc: Heiko Stuebner <[email-masked]>
> >> Cc: Kalle Valo <[email-masked]>
> >> Cc: [email-masked]
> >> Cc: [email-masked]
> >> Cc: [email-masked]
> >> Cc: [email-masked]
> >> Cc: [email-masked]
> >> Cc: [email-masked]
> >> Cc: [email-masked]
> >> ---
> >>  .../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
> >>
> >
> >
> >
> 
>