linux-kernel - RE: [PATCH 10/11] clk: samsung: exynoautov9: do not define number of clocks in bindings

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Date:   Thu, 10 Aug 2023 17:07:08 +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 10/11] clk: samsung: exynoautov9: 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 10/11] clk: samsung: exynoautov9: 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-exynosautov9.c | 29 ++++++++++++++++++--------
>  1 file changed, 20 insertions(+), 9 deletions(-)
> 
> diff --git a/drivers/clk/samsung/clk-exynosautov9.c
> b/drivers/clk/samsung/clk-exynosautov9.c
> index ddef546be545..e9c06eb93e66 100644
> --- a/drivers/clk/samsung/clk-exynosautov9.c
> +++ b/drivers/clk/samsung/clk-exynosautov9.c
> @@ -16,6 +16,17 @@
>  #include "clk.h"
>  #include "clk-exynos-arm64.h"
> 
> +/* NOTE: Must be equal to the last clock ID increased by one */
> +#define CLKS_NR_TOP			(GOUT_CLKCMU_PERIS_BUS
> + 1)
> +#define CLKS_NR_BUSMC
> 	(CLK_GOUT_BUSMC_SPDMA_PCLK + 1)
> +#define CLKS_NR_CORE
> 	(CLK_GOUT_CORE_CMU_CORE_PCLK + 1)
> +#define CLKS_NR_FSYS0
> 	(CLK_GOUT_FSYS0_PCIE_GEN3B_4L_CLK + 1)
> +#define CLKS_NR_FSYS1
> 	(CLK_GOUT_FSYS1_USB30_1_ACLK + 1)
> +#define CLKS_NR_FSYS2
> 	(CLK_GOUT_FSYS2_UFS_EMBD1_UNIPRO + 1)
> +#define CLKS_NR_PERIC0			(CLK_GOUT_PERIC0_PCLK_11
> + 1)
> +#define CLKS_NR_PERIC1			(CLK_GOUT_PERIC1_PCLK_11
> + 1)
> +#define CLKS_NR_PERIS			(CLK_GOUT_WDT_CLUSTER1
> + 1)
> +
>  /* ---- CMU_TOP
------------------------------------------------------------ */
> 
>  /* Register Offset definitions for CMU_TOP (0x1b240000) */ @@ -941,7
> +952,7 @@ static const struct samsung_cmu_info top_cmu_info __initconst
> = {
>  	.nr_fixed_factor_clks	= ARRAY_SIZE(top_fixed_factor_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),
>  };
> @@ -1001,7 +1012,7 @@ static const struct samsung_cmu_info
> busmc_cmu_info __initconst = {
>  	.nr_div_clks		= ARRAY_SIZE(busmc_div_clks),
>  	.gate_clks		= busmc_gate_clks,
>  	.nr_gate_clks		= ARRAY_SIZE(busmc_gate_clks),
> -	.nr_clk_ids		= BUSMC_NR_CLK,
> +	.nr_clk_ids		= CLKS_NR_BUSMC,
>  	.clk_regs		= busmc_clk_regs,
>  	.nr_clk_regs		= ARRAY_SIZE(busmc_clk_regs),
>  	.clk_name		= "dout_clkcmu_busmc_bus",
> @@ -1059,7 +1070,7 @@ 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_clkcmu_core_bus",
> @@ -1299,7 +1310,7 @@ static const struct samsung_cmu_info
> fsys0_cmu_info __initconst = {
>  	.nr_mux_clks		= ARRAY_SIZE(fsys0_mux_clks),
>  	.gate_clks		= fsys0_gate_clks,
>  	.nr_gate_clks		= ARRAY_SIZE(fsys0_gate_clks),
> -	.nr_clk_ids		= FSYS0_NR_CLK,
> +	.nr_clk_ids		= CLKS_NR_FSYS0,
>  	.clk_regs		= fsys0_clk_regs,
>  	.nr_clk_regs		= ARRAY_SIZE(fsys0_clk_regs),
>  	.clk_name		= "dout_clkcmu_fsys0_bus",
> @@ -1426,7 +1437,7 @@ static const struct samsung_cmu_info
> fsys1_cmu_info __initconst = {
>  	.nr_div_clks		= ARRAY_SIZE(fsys1_div_clks),
>  	.gate_clks		= fsys1_gate_clks,
>  	.nr_gate_clks		= ARRAY_SIZE(fsys1_gate_clks),
> -	.nr_clk_ids		= FSYS1_NR_CLK,
> +	.nr_clk_ids		= CLKS_NR_FSYS1,
>  	.clk_regs		= fsys1_clk_regs,
>  	.nr_clk_regs		= ARRAY_SIZE(fsys1_clk_regs),
>  	.clk_name		= "dout_clkcmu_fsys1_bus",
> @@ -1493,7 +1504,7 @@ static const struct samsung_cmu_info
> fsys2_cmu_info __initconst = {
>  	.nr_mux_clks		= ARRAY_SIZE(fsys2_mux_clks),
>  	.gate_clks		= fsys2_gate_clks,
>  	.nr_gate_clks		= ARRAY_SIZE(fsys2_gate_clks),
> -	.nr_clk_ids		= FSYS2_NR_CLK,
> +	.nr_clk_ids		= CLKS_NR_FSYS2,
>  	.clk_regs		= fsys2_clk_regs,
>  	.nr_clk_regs		= ARRAY_SIZE(fsys2_clk_regs),
>  	.clk_name		= "dout_clkcmu_fsys2_bus",
> @@ -1748,7 +1759,7 @@ static const struct samsung_cmu_info
> peric0_cmu_info __initconst = {
>  	.nr_div_clks		= ARRAY_SIZE(peric0_div_clks),
>  	.gate_clks		= peric0_gate_clks,
>  	.nr_gate_clks		= ARRAY_SIZE(peric0_gate_clks),
> -	.nr_clk_ids		= PERIC0_NR_CLK,
> +	.nr_clk_ids		= CLKS_NR_PERIC0,
>  	.clk_regs		= peric0_clk_regs,
>  	.nr_clk_regs		= ARRAY_SIZE(peric0_clk_regs),
>  	.clk_name		= "dout_clkcmu_peric0_bus",
> @@ -2003,7 +2014,7 @@ static const struct samsung_cmu_info
> peric1_cmu_info __initconst = {
>  	.nr_div_clks		= ARRAY_SIZE(peric1_div_clks),
>  	.gate_clks		= peric1_gate_clks,
>  	.nr_gate_clks		= ARRAY_SIZE(peric1_gate_clks),
> -	.nr_clk_ids		= PERIC1_NR_CLK,
> +	.nr_clk_ids		= CLKS_NR_PERIC1,
>  	.clk_regs		= peric1_clk_regs,
>  	.nr_clk_regs		= ARRAY_SIZE(peric1_clk_regs),
>  	.clk_name		= "dout_clkcmu_peric1_bus",
> @@ -2050,7 +2061,7 @@ static const struct samsung_cmu_info
> peris_cmu_info __initconst = {
>  	.nr_mux_clks		= ARRAY_SIZE(peris_mux_clks),
>  	.gate_clks		= peris_gate_clks,
>  	.nr_gate_clks		= ARRAY_SIZE(peris_gate_clks),
> -	.nr_clk_ids		= PERIS_NR_CLK,
> +	.nr_clk_ids		= CLKS_NR_PERIS,
>  	.clk_regs		= peris_clk_regs,
>  	.nr_clk_regs		= ARRAY_SIZE(peris_clk_regs),
>  	.clk_name		= "dout_clkcmu_peris_bus",
> --
> 2.34.1