linux-kernel - RE: [PATCH 08/11] clk: samsung: exynos7885: do not define number of clocks in bindings

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Message-ID: <004b01d9cb7e$ae660660$0b321320$@samsung.com>
Date:   Thu, 10 Aug 2023 17:04:50 +0530
From:   "Alim Akhtar" <alim.akhtar@...sung.com>
To:     "'Krzysztof Kozlowski'" <krzysztof.kozlowski@...aro.org>,
        "'Sylwester Nawrocki'" <s.nawrocki@...sung.com>,
        "'Tomasz Figa'" <tomasz.figa@...il.com>,
        "'Chanwoo Choi'" <cw00.choi@...sung.com>,
        "'Michael Turquette'" <mturquette@...libre.com>,
        "'Stephen Boyd'" <sboyd@...nel.org>,
        "'Rob Herring'" <robh+dt@...nel.org>,
        "'Conor Dooley'" <conor+dt@...nel.org>,
        <linux-samsung-soc@...r.kernel.org>, <linux-clk@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>
Subject: RE: [PATCH 08/11] clk: samsung: exynos7885: do not define number of
 clocks in bindings



> -----Original Message-----
> From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> Sent: Tuesday, August 8, 2023 1:58 PM
> To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>; Sylwester
> Nawrocki <s.nawrocki@...sung.com>; Tomasz Figa
> <tomasz.figa@...il.com>; Chanwoo Choi <cw00.choi@...sung.com>; Alim
> Akhtar <alim.akhtar@...sung.com>; Michael Turquette
> <mturquette@...libre.com>; Stephen Boyd <sboyd@...nel.org>; Rob
> Herring <robh+dt@...nel.org>; Conor Dooley <conor+dt@...nel.org>;
> linux-samsung-soc@...r.kernel.org; linux-clk@...r.kernel.org; linux-arm-
> kernel@...ts.infradead.org; linux-kernel@...r.kernel.org;
> devicetree@...r.kernel.org
> Subject: [PATCH 08/11] clk: samsung: exynos7885: do not define number of
> clocks in bindings
> 
> Number of clocks supported by Linux drivers might vary - sometimes we add
> new clocks, not exposed previously.  Therefore this number of clocks
should
> not be in the bindings, because otherwise we should not change it.
> 
> Define number of clocks per each clock controller inside the driver
directly.
> 
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> ---

Reviewed-by: Alim Akhtar <alim.akhtar@...sung.com>

>  drivers/clk/samsung/clk-exynos7885.c | 14 ++++++++++----
>  1 file changed, 10 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/clk/samsung/clk-exynos7885.c
b/drivers/clk/samsung/clk-
> exynos7885.c
> index 0c6a84764f7a..f7d7427a558b 100644
> --- a/drivers/clk/samsung/clk-exynos7885.c
> +++ b/drivers/clk/samsung/clk-exynos7885.c
> @@ -16,6 +16,12 @@
>  #include "clk.h"
>  #include "clk-exynos-arm64.h"
> 
> +/* NOTE: Must be equal to the last clock ID increased by one */
> +#define CLKS_NR_TOP			(CLK_GOUT_FSYS_USB30DRD
> + 1)
> +#define CLKS_NR_CORE
> 	(CLK_GOUT_TREX_P_CORE_PCLK_P_CORE + 1)
> +#define CLKS_NR_PERI			(CLK_GOUT_WDT1_PCLK + 1)
> +#define CLKS_NR_FSYS
> 	(CLK_GOUT_MMC_SDIO_SDCLKIN + 1)
> +
>  /* ---- CMU_TOP
------------------------------------------------------------- */
> 
>  /* Register Offset definitions for CMU_TOP (0x12060000) */ @@ -333,7
> +339,7 @@ static const struct samsung_cmu_info top_cmu_info __initconst
> = {
>  	.nr_div_clks		= ARRAY_SIZE(top_div_clks),
>  	.gate_clks		= top_gate_clks,
>  	.nr_gate_clks		= ARRAY_SIZE(top_gate_clks),
> -	.nr_clk_ids		= TOP_NR_CLK,
> +	.nr_clk_ids		= CLKS_NR_TOP,
>  	.clk_regs		= top_clk_regs,
>  	.nr_clk_regs		= ARRAY_SIZE(top_clk_regs),
>  };
> @@ -552,7 +558,7 @@ static const struct samsung_cmu_info peri_cmu_info
> __initconst = {
>  	.nr_mux_clks		= ARRAY_SIZE(peri_mux_clks),
>  	.gate_clks		= peri_gate_clks,
>  	.nr_gate_clks		= ARRAY_SIZE(peri_gate_clks),
> -	.nr_clk_ids		= PERI_NR_CLK,
> +	.nr_clk_ids		= CLKS_NR_PERI,
>  	.clk_regs		= peri_clk_regs,
>  	.nr_clk_regs		= ARRAY_SIZE(peri_clk_regs),
>  	.clk_name		= "dout_peri_bus",
> @@ -661,7 +667,7 @@ static const struct samsung_cmu_info core_cmu_info
> __initconst = {
>  	.nr_div_clks		= ARRAY_SIZE(core_div_clks),
>  	.gate_clks		= core_gate_clks,
>  	.nr_gate_clks		= ARRAY_SIZE(core_gate_clks),
> -	.nr_clk_ids		= CORE_NR_CLK,
> +	.nr_clk_ids		= CLKS_NR_CORE,
>  	.clk_regs		= core_clk_regs,
>  	.nr_clk_regs		= ARRAY_SIZE(core_clk_regs),
>  	.clk_name		= "dout_core_bus",
> @@ -743,7 +749,7 @@ static const struct samsung_cmu_info fsys_cmu_info
> __initconst = {
>  	.nr_mux_clks		= ARRAY_SIZE(fsys_mux_clks),
>  	.gate_clks		= fsys_gate_clks,
>  	.nr_gate_clks		= ARRAY_SIZE(fsys_gate_clks),
> -	.nr_clk_ids		= FSYS_NR_CLK,
> +	.nr_clk_ids		= CLKS_NR_FSYS,
>  	.clk_regs		= fsys_clk_regs,
>  	.nr_clk_regs		= ARRAY_SIZE(fsys_clk_regs),
>  	.clk_name		= "dout_fsys_bus",
> --
> 2.34.1