linux-kernel - Re: [PATCH v7 01/13] clk: samsung: add needed IDs for DMC clocks in Exynos5420

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Date:   Tue, 7 May 2019 16:33:41 +0900
From:   Chanwoo Choi <cw00.choi@...sung.com>
To:     Lukasz Luba <l.luba@...tner.samsung.com>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-pm@...r.kernel.org, linux-samsung-soc@...r.kernel.org
Cc:     b.zolnierkie@...sung.com, krzk@...nel.org, kgene@...nel.org,
        kyungmin.park@...sung.com, m.szyprowski@...sung.com,
        s.nawrocki@...sung.com, myungjoo.ham@...sung.com,
        keescook@...omium.org, tony@...mide.com, jroedel@...e.de,
        treding@...dia.com, digetx@...il.com, willy.mh.wolff.ml@...il.com
Subject: Re: [PATCH v7 01/13] clk: samsung: add needed IDs for DMC clocks in
 Exynos5420

Hi Lukasz,

On 19. 5. 7. 오전 12:11, Lukasz Luba wrote:
> Define new IDs for clocks used by Dynamic Memory Controller in
> Exynos5422 SoC.
> 
> Acked-by: Rob Herring <robh@...nel.org>
> Signed-off-by: Lukasz Luba <l.luba@...tner.samsung.com>
> ---
>  include/dt-bindings/clock/exynos5420.h | 28 ++++++++++++++++++++++------
>  1 file changed, 22 insertions(+), 6 deletions(-)
> 
> diff --git a/include/dt-bindings/clock/exynos5420.h b/include/dt-bindings/clock/exynos5420.h
> index 355f469..bf50d8a 100644
> --- a/include/dt-bindings/clock/exynos5420.h
> +++ b/include/dt-bindings/clock/exynos5420.h
> @@ -60,6 +60,7 @@
>  #define CLK_MAU_EPLL		159
>  #define CLK_SCLK_HSIC_12M	160
>  #define CLK_SCLK_MPHY_IXTAL24	161
> +#define CLK_SCLK_BPLL		162
>  
>  /* gate clocks */
>  #define CLK_UART0		257
> @@ -195,6 +196,16 @@
>  #define CLK_ACLK432_CAM		518
>  #define CLK_ACLK_FL1550_CAM	519
>  #define CLK_ACLK550_CAM		520
> +#define CLK_CLKM_PHY0		521
> +#define CLK_CLKM_PHY1		522
> +#define CLK_ACLK_PPMU_DREX0_0	523
> +#define CLK_ACLK_PPMU_DREX0_1	524
> +#define CLK_ACLK_PPMU_DREX1_0	525
> +#define CLK_ACLK_PPMU_DREX1_1	526
> +#define CLK_PCLK_PPMU_DREX0_0	527
> +#define CLK_PCLK_PPMU_DREX0_1	528
> +#define CLK_PCLK_PPMU_DREX1_0	529
> +#define CLK_PCLK_PPMU_DREX1_1	530
>  
>  /* mux clocks */
>  #define CLK_MOUT_HDMI		640
> @@ -217,6 +228,8 @@
>  #define CLK_MOUT_EPLL		657
>  #define CLK_MOUT_MAU_EPLL	658
>  #define CLK_MOUT_USER_MAU_EPLL	659
> +#define CLK_MOUT_SCLK_SPLL	660
> +#define CLK_MOUT_MX_MSPLL_CCORE_PHY	661
>  
>  /* divider clocks */
>  #define CLK_DOUT_PIXEL		768
> @@ -243,13 +256,16 @@
>  #define CLK_DOUT_ACLK300_GSCL	789
>  #define CLK_DOUT_ACLK400_DISP1	790
>  #define CLK_DOUT_PCLK_CDREX	791
> -#define CLK_DOUT_SCLK_CDREX	792
> -#define CLK_DOUT_ACLK_CDREX1	793
> -#define CLK_DOUT_CCLK_DREX0	794
> -#define CLK_DOUT_CLK2X_PHY0	795
> -#define CLK_DOUT_PCLK_CORE_MEM	796

The your previous patch didn't change the id number
of already exiting clocks. It cause the fault.
In order to keep the compatibility, you keep
the original id number without modification.

Please don't change the id number of the existing clocks
and then just add the new clocks.


> +#define CLK_DOUT_PCLK_DREX0	792
> +#define CLK_DOUT_PCLK_DREX1	793
> +#define CLK_DOUT_SCLK_CDREX	794
> +#define CLK_DOUT_ACLK_CDREX1	795
> +#define CLK_DOUT_CCLK_DREX0	796
> +#define CLK_DOUT_CLK2X_PHY0	797
> +#define CLK_DOUT_PCLK_CORE_MEM	798
> +#define CLK_FF_DOUT_SPLL2	799
>  
>  /* must be greater than maximal clock id */
> -#define CLK_NR_CLKS		797
> +#define CLK_NR_CLKS		800
>  
>  #endif /* _DT_BINDINGS_CLOCK_EXYNOS_5420_H */
> 

-- 
Best Regards,
Chanwoo Choi
Samsung Electronics