linux-kernel - Re: [PATCH 3/3] ARM: defconfig: Enable ax88796c driver

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Date:   Wed, 26 Aug 2020 08:46:45 +0200
From:   Krzysztof Kozlowski <krzk@...nel.org>
To:     Lukasz Stelmach <l.stelmach@...sung.com>
Cc:     "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Kukjin Kim <kgene@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Russell King <linux@...linux.org.uk>,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        linux-samsung-soc@...r.kernel.org, netdev@...r.kernel.org,
        devicetree@...r.kernel.org, m.szyprowski@...sung.com,
        b.zolnierkie@...sung.com
Subject: Re: [PATCH 3/3] ARM: defconfig: Enable ax88796c driver

On Wed, Aug 26, 2020 at 07:11:18AM +0200, Lukasz Stelmach wrote:
> It was <2020-08-25 wto 20:51>, when Krzysztof Kozlowski wrote:
> > On Tue, Aug 25, 2020 at 07:03:11PM +0200, Łukasz Stelmach wrote:
> >> Enable ax88796c driver for the ethernet chip on Exynos3250-based
> >> ARTIK5 boards.
> >> 
> >> Signed-off-by: Łukasz Stelmach <l.stelmach@...sung.com>
> >> ---
> >>  arch/arm/configs/exynos_defconfig   | 2 ++
> >>  arch/arm/configs/multi_v7_defconfig | 2 ++
> >>  2 files changed, 4 insertions(+)
> >> 
> >> Please DO NOT merge before these two
> >
> > Sure, it can wait but shouldn't actually DT wait? It's only defconfig so
> > it does not change anything except automated systems booting these
> > defconfigs... The boards might be broken by DT.
> 
> I was told, to ask for deferred merge of defconfig and it makes sense to
> me. DT won't break anything if the driver isn't compiled. However, I can
> see that you have a word you may decide about DT too. My point is to
> wait until spi-s3c64xx patches are merged and not to break ARTIK5
> boards.

The config is chosen and adjusted by each person, during build. Merging
defconfig does not necessarily affect them. However merging DT affects -
you cannot disable it without source code modification.

Anyway, no problem for me with waiting with defconfig.

Best regards,
Krzysztof


> 
> >> 
> >>   https://lore.kernel.org/lkml/20200821161401.11307-2-l.stelmach@samsung.com/
> >>   https://lore.kernel.org/lkml/20200821161401.11307-3-l.stelmach@samsung.com/
> >> 
> >> diff --git a/arch/arm/configs/exynos_defconfig b/arch/arm/configs/exynos_defconfig
> >> index 6e8b5ff0859c..82480b2bf545 100644
> >> --- a/arch/arm/configs/exynos_defconfig
> >> +++ b/arch/arm/configs/exynos_defconfig
> >> @@ -107,6 +107,8 @@ CONFIG_MD=y
> >>  CONFIG_BLK_DEV_DM=y
> >>  CONFIG_DM_CRYPT=m
> >>  CONFIG_NETDEVICES=y
> >> +CONFIG_NET_VENDOR_ASIX=y
> >> +CONFIG_SPI_AX88796C=y
> >>  CONFIG_SMSC911X=y
> >>  CONFIG_USB_RTL8150=m
> >>  CONFIG_USB_RTL8152=y
> >> diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v7_defconfig
> >> index e9e76e32f10f..a8b4e95d4148 100644
> >> --- a/arch/arm/configs/multi_v7_defconfig
> >> +++ b/arch/arm/configs/multi_v7_defconfig
> >> @@ -241,6 +241,8 @@ CONFIG_SATA_HIGHBANK=y
> >>  CONFIG_SATA_MV=y
> >>  CONFIG_SATA_RCAR=y
> >>  CONFIG_NETDEVICES=y
> >> +CONFIG_NET_VENDOR_ASIX=y
> >> +CONFIG_SPI_AX88796C=m
> >>  CONFIG_VIRTIO_NET=y
> >>  CONFIG_B53_SPI_DRIVER=m
> >>  CONFIG_B53_MDIO_DRIVER=m
> >> -- 
> >> 2.26.2
> >> 
> >
> >
> 
> -- 
> Łukasz Stelmach
> Samsung R&D Institute Poland
> Samsung Electronics