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From:   "Alim Akhtar" <alim.akhtar@samsung.com>
To:     "'Krzysztof Kozlowski'" <krzysztof.kozlowski@linaro.org>,
        "'Sylwester Nawrocki'" <s.nawrocki@samsung.com>,
        "'Tomasz Figa'" <tomasz.figa@gmail.com>,
        "'Chanwoo Choi'" <cw00.choi@samsung.com>,
        "'Michael Turquette'" <mturquette@baylibre.com>,
        "'Stephen Boyd'" <sboyd@kernel.org>,
        "'Rob Herring'" <robh+dt@kernel.org>,
        "'Conor Dooley'" <conor+dt@kernel.org>,
        <linux-samsung-soc@vger.kernel.org>, <linux-clk@vger.kernel.org>,
        <linux-arm-kernel@lists.infradead.org>,
        <linux-kernel@vger.kernel.org>, <devicetree@vger.kernel.org>
In-Reply-To: <20230808082738.122804-5-krzysztof.kozlowski@linaro.org>
Subject: RE: [PATCH 04/11] clk: samsung: exynos5260: do not define number of
 clocks in bindings
Date:   Thu, 10 Aug 2023 16:56:06 +0530
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> -----Original Message-----
> From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
> Sent: Tuesday, August 8, 2023 1:58 PM
> To: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>; Sylwester
> Nawrocki <s.nawrocki@samsung.com>; Tomasz Figa
> <tomasz.figa@gmail.com>; Chanwoo Choi <cw00.choi@samsung.com>; Alim
> Akhtar <alim.akhtar@samsung.com>; Michael Turquette
> <mturquette@baylibre.com>; Stephen Boyd <sboyd@kernel.org>; Rob
> Herring <robh+dt@kernel.org>; Conor Dooley <conor+dt@kernel.org>;
> linux-samsung-soc@vger.kernel.org; linux-clk@vger.kernel.org; linux-arm-
> kernel@lists.infradead.org; linux-kernel@vger.kernel.org;
> devicetree@vger.kernel.org
> Subject: [PATCH 04/11] clk: samsung: exynos5260: 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@linaro.org>
> ---

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

>  drivers/clk/samsung/clk-exynos5260.c | 41 +++++++++++++++++++---------
>  1 file changed, 28 insertions(+), 13 deletions(-)
> 
> diff --git a/drivers/clk/samsung/clk-exynos5260.c
b/drivers/clk/samsung/clk-
> exynos5260.c
> index e05d7323669a..16da6ef5ca0c 100644
> --- a/drivers/clk/samsung/clk-exynos5260.c
> +++ b/drivers/clk/samsung/clk-exynos5260.c
> @@ -15,6 +15,21 @@
> 
>  #include <dt-bindings/clock/exynos5260-clk.h>
> 
> +/* NOTE: Must be equal to the last clock ID increased by one */
> +#define CLKS_NR_TOP
> 	(PHYCLK_USBDRD30_UDRD30_PHYCLOCK + 1)
> +#define CLKS_NR_EGL			(EGL_DOUT_EGL1 + 1)
> +#define CLKS_NR_KFC			(KFC_DOUT_KFC1 + 1)
> +#define CLKS_NR_MIF
> 	(MIF_SCLK_LPDDR3PHY_WRAP_U0 + 1)
> +#define CLKS_NR_G3D			(G3D_CLK_G3D + 1)
> +#define CLKS_NR_AUD			(AUD_SCLK_I2S + 1)
> +#define CLKS_NR_MFC			(MFC_CLK_SMMU2_MFCM0
> + 1)
> +#define CLKS_NR_GSCL			(GSCL_SCLK_CSIS0_WRAP +
> 1)
> +#define CLKS_NR_FSYS			(FSYS_PHYCLK_USBHOST20 +
> 1)
> +#define CLKS_NR_PERI			(PERI_SCLK_PCM1 + 1)
> +#define CLKS_NR_DISP
> 	(DISP_MOUT_HDMI_PHY_PIXEL_USER + 1)
> +#define CLKS_NR_G2D			(G2D_CLK_SMMU3_G2D + 1)
> +#define CLKS_NR_ISP			(ISP_SCLK_UART_EXT + 1)
> +
>  /*
>   * Applicable for all 2550 Type PLLS for Exynos5260, listed below
>   * DISP_PLL, EGL_PLL, KFC_PLL, MEM_PLL, BUS_PLL, MEDIA_PLL, G3D_PLL.
> @@ -135,7 +150,7 @@ static const struct samsung_cmu_info aud_cmu
> __initconst = {
>  	.nr_div_clks	= ARRAY_SIZE(aud_div_clks),
>  	.gate_clks	= aud_gate_clks,
>  	.nr_gate_clks	= ARRAY_SIZE(aud_gate_clks),
> -	.nr_clk_ids	= AUD_NR_CLK,
> +	.nr_clk_ids	= CLKS_NR_AUD,
>  	.clk_regs	= aud_clk_regs,
>  	.nr_clk_regs	= ARRAY_SIZE(aud_clk_regs),
>  };
> @@ -325,7 +340,7 @@ static const struct samsung_cmu_info disp_cmu
> __initconst = {
>  	.nr_div_clks	= ARRAY_SIZE(disp_div_clks),
>  	.gate_clks	= disp_gate_clks,
>  	.nr_gate_clks	= ARRAY_SIZE(disp_gate_clks),
> -	.nr_clk_ids	= DISP_NR_CLK,
> +	.nr_clk_ids	= CLKS_NR_DISP,
>  	.clk_regs	= disp_clk_regs,
>  	.nr_clk_regs	= ARRAY_SIZE(disp_clk_regs),
>  };
> @@ -389,7 +404,7 @@ static const struct samsung_cmu_info egl_cmu
> __initconst = {
>  	.nr_mux_clks	= ARRAY_SIZE(egl_mux_clks),
>  	.div_clks	= egl_div_clks,
>  	.nr_div_clks	= ARRAY_SIZE(egl_div_clks),
> -	.nr_clk_ids	= EGL_NR_CLK,
> +	.nr_clk_ids	= CLKS_NR_EGL,
>  	.clk_regs	= egl_clk_regs,
>  	.nr_clk_regs	= ARRAY_SIZE(egl_clk_regs),
>  };
> @@ -489,7 +504,7 @@ static const struct samsung_cmu_info fsys_cmu
> __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),
>  };
> @@ -580,7 +595,7 @@ static const struct samsung_cmu_info g2d_cmu
> __initconst = {
>  	.nr_div_clks	= ARRAY_SIZE(g2d_div_clks),
>  	.gate_clks	= g2d_gate_clks,
>  	.nr_gate_clks	= ARRAY_SIZE(g2d_gate_clks),
> -	.nr_clk_ids	= G2D_NR_CLK,
> +	.nr_clk_ids	= CLKS_NR_G2D,
>  	.clk_regs	= g2d_clk_regs,
>  	.nr_clk_regs	= ARRAY_SIZE(g2d_clk_regs),
>  };
> @@ -643,7 +658,7 @@ static const struct samsung_cmu_info g3d_cmu
> __initconst = {
>  	.nr_div_clks	= ARRAY_SIZE(g3d_div_clks),
>  	.gate_clks	= g3d_gate_clks,
>  	.nr_gate_clks	= ARRAY_SIZE(g3d_gate_clks),
> -	.nr_clk_ids	= G3D_NR_CLK,
> +	.nr_clk_ids	= CLKS_NR_G3D,
>  	.clk_regs	= g3d_clk_regs,
>  	.nr_clk_regs	= ARRAY_SIZE(g3d_clk_regs),
>  };
> @@ -776,7 +791,7 @@ static const struct samsung_cmu_info gscl_cmu
> __initconst = {
>  	.nr_div_clks	= ARRAY_SIZE(gscl_div_clks),
>  	.gate_clks	= gscl_gate_clks,
>  	.nr_gate_clks	= ARRAY_SIZE(gscl_gate_clks),
> -	.nr_clk_ids	= GSCL_NR_CLK,
> +	.nr_clk_ids	= CLKS_NR_GSCL,
>  	.clk_regs	= gscl_clk_regs,
>  	.nr_clk_regs	= ARRAY_SIZE(gscl_clk_regs),
>  };
> @@ -895,7 +910,7 @@ static const struct samsung_cmu_info isp_cmu
> __initconst = {
>  	.nr_div_clks	= ARRAY_SIZE(isp_div_clks),
>  	.gate_clks	= isp_gate_clks,
>  	.nr_gate_clks	= ARRAY_SIZE(isp_gate_clks),
> -	.nr_clk_ids	= ISP_NR_CLK,
> +	.nr_clk_ids	= CLKS_NR_ISP,
>  	.clk_regs	= isp_clk_regs,
>  	.nr_clk_regs	= ARRAY_SIZE(isp_clk_regs),
>  };
> @@ -959,7 +974,7 @@ static const struct samsung_cmu_info kfc_cmu
> __initconst = {
>  	.nr_mux_clks	= ARRAY_SIZE(kfc_mux_clks),
>  	.div_clks	= kfc_div_clks,
>  	.nr_div_clks	= ARRAY_SIZE(kfc_div_clks),
> -	.nr_clk_ids	= KFC_NR_CLK,
> +	.nr_clk_ids	= CLKS_NR_KFC,
>  	.clk_regs	= kfc_clk_regs,
>  	.nr_clk_regs	= ARRAY_SIZE(kfc_clk_regs),
>  };
> @@ -1015,7 +1030,7 @@ static const struct samsung_cmu_info mfc_cmu
> __initconst = {
>  	.nr_div_clks	= ARRAY_SIZE(mfc_div_clks),
>  	.gate_clks	= mfc_gate_clks,
>  	.nr_gate_clks	= ARRAY_SIZE(mfc_gate_clks),
> -	.nr_clk_ids	= MFC_NR_CLK,
> +	.nr_clk_ids	= CLKS_NR_MFC,
>  	.clk_regs	= mfc_clk_regs,
>  	.nr_clk_regs	= ARRAY_SIZE(mfc_clk_regs),
>  };
> @@ -1164,7 +1179,7 @@ static const struct samsung_cmu_info mif_cmu
> __initconst = {
>  	.nr_div_clks	= ARRAY_SIZE(mif_div_clks),
>  	.gate_clks	= mif_gate_clks,
>  	.nr_gate_clks	= ARRAY_SIZE(mif_gate_clks),
> -	.nr_clk_ids	= MIF_NR_CLK,
> +	.nr_clk_ids	= CLKS_NR_MIF,
>  	.clk_regs	= mif_clk_regs,
>  	.nr_clk_regs	= ARRAY_SIZE(mif_clk_regs),
>  };
> @@ -1370,7 +1385,7 @@ static const struct samsung_cmu_info peri_cmu
> __initconst = {
>  	.nr_div_clks	= ARRAY_SIZE(peri_div_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),
>  };
> @@ -1826,7 +1841,7 @@ static const struct samsung_cmu_info top_cmu
> __initconst = {
>  	.nr_gate_clks	= ARRAY_SIZE(top_gate_clks),
>  	.fixed_clks	= fixed_rate_clks,
>  	.nr_fixed_clks	= ARRAY_SIZE(fixed_rate_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),
>  };
> --
> 2.34.1