linux-kernel - Re: [PATCH] clk: imx8: Add DSP related clocks

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Date:   Wed, 17 Jul 2019 23:17:19 +0300
From:   Daniel Baluta <daniel.baluta@...il.com>
To:     Daniel Baluta <daniel.baluta@....com>, Jacky Bai <ping.bai@....com>
Cc:     Shawn Guo <shawnguo@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        Fabio Estevam <festevam@...il.com>,
        dl-linux-imx <linux-imx@....com>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Aisheng Dong <aisheng.dong@....com>, weiyongjun1@...wei.com,
        linux-clk@...r.kernel.org,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Devicetree List <devicetree@...r.kernel.org>,
        "S.j. Wang" <shengjiu.wang@....com>
Subject: Re: [PATCH] clk: imx8: Add DSP related clocks

Aisheng/Jacky,

Can you help with review on this?

On Tue, Jul 2, 2019 at 6:22 PM Daniel Baluta <daniel.baluta@....com> wrote:
>
> i.MX8QXP contains Hifi4 DSP. There are four clocks
> associated with DSP:
>   * dsp_lpcg_core_clk
>   * dsp_lpcg_ipg_clk
>   * dsp_lpcg_adb_aclk
>   * ocram_lpcg_ipg_clk
>
> Signed-off-by: Daniel Baluta <daniel.baluta@....com>
> ---
>  drivers/clk/imx/clk-imx8qxp-lpcg.c     | 5 +++++
>  include/dt-bindings/clock/imx8-clock.h | 6 +++++-
>  2 files changed, 10 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/clk/imx/clk-imx8qxp-lpcg.c b/drivers/clk/imx/clk-imx8qxp-lpcg.c
> index fb6edf1b8aa2..c0aff7ca6374 100644
> --- a/drivers/clk/imx/clk-imx8qxp-lpcg.c
> +++ b/drivers/clk/imx/clk-imx8qxp-lpcg.c
> @@ -72,6 +72,11 @@ static const struct imx8qxp_lpcg_data imx8qxp_lpcg_adma[] = {
>         { IMX_ADMA_LPCG_I2C2_CLK, "i2c2_lpcg_clk", "i2c2_clk", 0, ADMA_LPI2C_2_LPCG, 0, 0, },
>         { IMX_ADMA_LPCG_I2C3_IPG_CLK, "i2c3_lpcg_ipg_clk", "dma_ipg_clk_root", 0, ADMA_LPI2C_3_LPCG, 16, 0, },
>         { IMX_ADMA_LPCG_I2C3_CLK, "i2c3_lpcg_clk", "i2c3_clk", 0, ADMA_LPI2C_3_LPCG, 0, 0, },
> +
> +       { IMX_ADMA_LPCG_DSP_CORE_CLK, "dsp_lpcg_core_clk", "dma_ipg_clk_root", 0, ADMA_HIFI_LPCG, 28, 0, },
> +       { IMX_ADMA_LPCG_DSP_IPG_CLK, "dsp_lpcg_ipg_clk", "dma_ipg_clk_root", 0, ADMA_HIFI_LPCG, 20, 0, },
> +       { IMX_ADMA_LPCG_DSP_ADB_CLK, "dsp_lpcg_adb_clk", "dma_ipg_clk_root", 0, ADMA_HIFI_LPCG, 16, 0, },
> +       { IMX_ADMA_LPCG_OCRAM_IPG_CLK, "ocram_lpcg_ipg_clk", "dma_ipg_clk_root", 0, ADMA_OCRAM_LPCG, 16, 0, },
>  };
>
>  static const struct imx8qxp_ss_lpcg imx8qxp_ss_adma = {
> diff --git a/include/dt-bindings/clock/imx8-clock.h b/include/dt-bindings/clock/imx8-clock.h
> index 4236818e3be5..673a8c662340 100644
> --- a/include/dt-bindings/clock/imx8-clock.h
> +++ b/include/dt-bindings/clock/imx8-clock.h
> @@ -283,7 +283,11 @@
>  #define IMX_ADMA_LPCG_PWM_IPG_CLK                      38
>  #define IMX_ADMA_LPCG_LCD_PIX_CLK                      39
>  #define IMX_ADMA_LPCG_LCD_APB_CLK                      40
> +#define IMX_ADMA_LPCG_DSP_ADB_CLK                      41
> +#define IMX_ADMA_LPCG_DSP_IPG_CLK                      42
> +#define IMX_ADMA_LPCG_DSP_CORE_CLK                     43
> +#define IMX_ADMA_LPCG_OCRAM_IPG_CLK                    44
>
> -#define IMX_ADMA_LPCG_CLK_END                          41
> +#define IMX_ADMA_LPCG_CLK_END                          45
>
>  #endif /* __DT_BINDINGS_CLOCK_IMX_H */
> --
> 2.17.1
>