linux-kernel - Re: [PATCH v2 5/9] clk: samsung: exynos850: Implement CMU

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Date:   Fri, 12 Aug 2022 12:47:46 +0300
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Sam Protsenko <semen.protsenko@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Sylwester Nawrocki <s.nawrocki@...sung.com>,
        Chanwoo Choi <cw00.choi@...sung.com>
Cc:     Alim Akhtar <alim.akhtar@...sung.com>,
        Chanho Park <chanho61.park@...sung.com>,
        David Virag <virag.david003@...il.com>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Sumit Semwal <sumit.semwal@...aro.org>,
        Tomasz Figa <tomasz.figa@...il.com>,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-samsung-soc@...r.kernel.org
Subject: Re: [PATCH v2 5/9] clk: samsung: exynos850: Implement CMU_AUD domain

On 09/08/2022 14:33, Sam Protsenko wrote:
> CMU_AUD clock domain provides clocks for ABOX IP-core (audio subsystem).
> According to Exynos850 TRM, CMU_AUD generates Cortex-A32 clock, bus
> clock and audio clocks for BLK_AUD.
> 
> This patch adds next clocks:
>   - bus clocks in CMU_TOP needed for CMU_AUD
>   - all internal CMU_AUD clocks
>   - leaf clocks for Cortex-A32, Speedy FM, UAIF0..UAIF6 (Unified Audio
>     Interface), CNT (counter), ABOX IP-core, ASB (Asynchronous Bridge),
>     DAP (Debug Access Port), I2S Codec MCLK, D_TZPC (TrustZone
>     Protection Controller), GPIO, PPMU (Platform Performance Monitoring
>     Unit), SysMMU, SysReg and WDT
> 
> ABOX clock was marked as CLK_IGNORE_UNUSED, as system hangs on boot
> otherwise. Once ABOX driver is implemented, maybe it can be handled
> there instead.
> 
> Signed-off-by: Sam Protsenko <semen.protsenko@...aro.org>
> ---
> Changes in v2:
>   - (none)
> 
>  drivers/clk/samsung/clk-exynos850.c | 302 ++++++++++++++++++++++++++++
>  1 file changed, 302 insertions(+)


Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>


Best regards,
Krzysztof