linux-kernel - Re: [PATCH] net: stmmac: dwmac-meson8b: ignore the second clock input

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Message-Id: <160869180719.29227.9509776224388013090.git-patchwork-notify@kernel.org>
Date:   Wed, 23 Dec 2020 02:50:07 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Martin Blumenstingl <martin.blumenstingl@...glemail.com>
Cc:     netdev@...r.kernel.org, linux-amlogic@...ts.infradead.org,
        davem@...emloft.net, kuba@...nel.org, khilman@...libre.com,
        jbrunet@...libre.com, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, thomas.graichen@...il.com
Subject: Re: [PATCH] net: stmmac: dwmac-meson8b: ignore the second clock input

Hello:

This patch was applied to netdev/net.git (refs/heads/master):

On Sat, 19 Dec 2020 14:50:36 +0100 you wrote:
> The dwmac glue registers on Amlogic Meson8b and newer SoCs has two clock
> inputs:
> - Meson8b and Meson8m2: MPLL2 and MPLL2 (the same parent is wired to
>   both inputs)
> - GXBB, GXL, GXM, AXG, G12A, G12B, SM1: FCLK_DIV2 and MPLL2
> 
> All known vendor kernels and u-boots are using the first input only. We
> let the common clock framework automatically choose the "right" parent.
> For some boards this causes a problem though, specificially with G12A and
> newer SoCs. The clock input is used for generating the 125MHz RGMII TX
> clock. For the two input clocks this means on G12A:
> - FCLK_DIV2: 999999985Hz / 8 = 124999998.125Hz
> - MPLL2: 499999993Hz / 4 = 124999998.25Hz
> 
> [...]

Here is the summary with links:
  - net: stmmac: dwmac-meson8b: ignore the second clock input
    https://git.kernel.org/netdev/net/c/f87777a3c30c

You are awesome, thank you!
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