linux-kernel - Re: [PATCH 2/5] clk: qcom: gcc-ipq5018: fix GE PHY reset

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Message-ID: <337068fa-adc2-478e-8f3f-ec93af0bb1c6@oss.qualcomm.com>
Date: Tue, 27 May 2025 13:00:37 +0200
From: Konrad Dybcio <konrad.dybcio@....qualcomm.com>
To: george.moussalem@...look.com, Andrew Lunn <andrew@...n.ch>,
        Heiner Kallweit <hkallweit1@...il.com>,
        Russell King
 <linux@...linux.org.uk>,
        "David S. Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Conor Dooley
 <conor+dt@...nel.org>,
        Florian Fainelli <f.fainelli@...il.com>,
        Philipp Zabel <p.zabel@...gutronix.de>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konradybcio@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>
Cc: netdev@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org,
        linux-clk@...r.kernel.org
Subject: Re: [PATCH 2/5] clk: qcom: gcc-ipq5018: fix GE PHY reset

On 5/25/25 7:56 PM, George Moussalem via B4 Relay wrote:
> From: George Moussalem <george.moussalem@...look.com>
> 
> The MISC reset is supposed to trigger a resets across the MDC, DSP, and
> RX & TX clocks of the IPQ5018 internal GE PHY. So let's set the bitmask
> of the reset definition accordingly in the GCC as per the downstream
> driver.
> 
> Link: https://git.codelinaro.org/clo/qsdk/oss/kernel/linux-ipq-5.4/-/commit/00743c3e82fa87cba4460e7a2ba32f473a9ce932
> 
> Signed-off-by: George Moussalem <george.moussalem@...look.com>
> ---
>  drivers/clk/qcom/gcc-ipq5018.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/clk/qcom/gcc-ipq5018.c b/drivers/clk/qcom/gcc-ipq5018.c
> index 70f5dcb96700f55da1fb19fc893d22350a7e63bf..02d6f08f389f24eccc961b9a4271288c6b635bbc 100644
> --- a/drivers/clk/qcom/gcc-ipq5018.c
> +++ b/drivers/clk/qcom/gcc-ipq5018.c
> @@ -3660,7 +3660,7 @@ static const struct qcom_reset_map gcc_ipq5018_resets[] = {
>  	[GCC_WCSS_AXI_S_ARES] = { 0x59008, 6 },
>  	[GCC_WCSS_Q6_BCR] = { 0x18004, 0 },
>  	[GCC_WCSSAON_RESET] = { 0x59010, 0},
> -	[GCC_GEPHY_MISC_ARES] = { 0x56004, 0 },
> +	[GCC_GEPHY_MISC_ARES] = { 0x56004, .bitmask = 0xf },

The computer tells me there aren't any bits beyond this mask..

Does this actually fix anything?

Konrad