linux-kernel - Re: [RFT PATCH] crypto: s5p-sss - initialize APB clock after the AXI bus clock for SlimSSS

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Message-ID: <20210304064422.GJ15863@gondor.apana.org.au>
Date:   Thu, 4 Mar 2021 17:44:22 +1100
From:   Herbert Xu <herbert@...dor.apana.org.au>
To:     Krzysztof Kozlowski <krzk@...nel.org>
Cc:     Vladimir Zapolskiy <vz@...ia.com>,
        "David S. Miller" <davem@...emloft.net>,
        linux-crypto@...r.kernel.org, linux-samsung-soc@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Sylwester Nawrocki <snawrocki@...nel.org>,
        Marek Szyprowski <m.szyprowski@...sung.com>
Subject: Re: [RFT PATCH] crypto: s5p-sss - initialize APB clock after the AXI
 bus clock for SlimSSS

On Fri, Feb 12, 2021 at 05:35:26PM +0100, Krzysztof Kozlowski wrote:
> The driver for Slim Security Subsystem (SlimSSS) on Exynos5433 takes two
> clocks - aclk (AXI/AHB clock) and pclk (APB/Advanced Peripheral Bus
> clock).  The "aclk", as main high speed bus clock, is enabled first.  Then
> the "pclk" is enabled.
> 
> However the driver assigned reversed names for lookup of these clocks
> from devicetree, so effectively the "pclk" was enabled first.
> 
> Although it might not matter in reality, the correct order is to enable
> first main/high speed bus clock - "aclk".  Also this was the intention
> of the actual code.
> 
> Signed-off-by: Krzysztof Kozlowski <krzk@...nel.org>
> 
> ---
> 
> Not tested, please kindly test on Exynos5433 hardware.
> ---
>  drivers/crypto/s5p-sss.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)

Patch applied.  Thanks.
-- 
Email: Herbert Xu <herbert@...dor.apana.org.au>
Home Page: http://gondor.apana.org.au/~herbert/
PGP Key: http://gondor.apana.org.au/~herbert/pubkey.txt