linux-kernel - Re: [PATCH 4/8] clk: qcom: gcc-ipq9574: Add USB related clocks

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Date:   Thu, 2 Mar 2023 18:24:46 +0200
From:   Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To:     Varadarajan Narayanan <quic_varada@...cinc.com>
Cc:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
        linux-kernel@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH 4/8] clk: qcom: gcc-ipq9574: Add USB related clocks

On Thu, 2 Mar 2023 at 11:56, Varadarajan Narayanan
<quic_varada@...cinc.com> wrote:
>
> Add the clocks needed for enabling USB in IPQ9574
>
> Signed-off-by: Varadarajan Narayanan <quic_varada@...cinc.com>
> ---
>  drivers/clk/qcom/gcc-ipq9574.c               | 35 ++++++++++++++++++++++++++++
>  include/dt-bindings/clock/qcom,ipq9574-gcc.h |  2 ++
>  2 files changed, 37 insertions(+)
>
> diff --git a/drivers/clk/qcom/gcc-ipq9574.c b/drivers/clk/qcom/gcc-ipq9574.c
> index 1bf33d5..85cc6a5 100644
> --- a/drivers/clk/qcom/gcc-ipq9574.c
> +++ b/drivers/clk/qcom/gcc-ipq9574.c
> @@ -2041,6 +2041,39 @@ static struct clk_regmap_mux usb0_pipe_clk_src = {
>         },
>  };
>
> +static struct clk_branch gcc_usb0_pipe_clk = {
> +       .halt_reg = 0x2c054,
> +       .halt_check = BRANCH_HALT_DELAY,
> +       .clkr = {
> +               .enable_reg = 0x2c054,
> +               .enable_mask = BIT(0),
> +               .hw.init = &(struct clk_init_data){
> +                       .name = "gcc_usb0_pipe_clk",
> +                       .parent_hws = (const struct clk_hw *[]){
> +                               &usb0_pipe_clk_src.clkr.hw },

Please move the closing bracket to the next line.

> +                       .num_parents = 1,
> +                       .flags = CLK_SET_RATE_PARENT,
> +                       .ops = &clk_branch2_ops,
> +               },
> +       },
> +};
> +
> +static struct clk_branch gcc_usb0_sleep_clk = {
> +       .halt_reg = 0x2c058,
> +       .clkr = {
> +               .enable_reg = 0x2c058,
> +               .enable_mask = BIT(0),
> +               .hw.init = &(struct clk_init_data){
> +                       .name = "gcc_usb0_sleep_clk",
> +                       .parent_hws = (const struct clk_hw *[]){
> +                               &gcc_sleep_clk_src.clkr.hw },
> +                       .num_parents = 1,
> +                       .flags = CLK_SET_RATE_PARENT,
> +                       .ops = &clk_branch2_ops,
> +               },
> +       },
> +};
> +
>  static const struct freq_tbl ftbl_sdcc_apps_clk_src[] = {
>         F(144000, P_XO, 16, 12, 125),
>         F(400000, P_XO, 12, 1, 5),
> @@ -4008,6 +4041,8 @@ static struct clk_regmap *gcc_ipq9574_clks[] = {
>         [GCC_USB0_MOCK_UTMI_CLK] = &gcc_usb0_mock_utmi_clk.clkr,
>         [USB0_PIPE_CLK_SRC] = &usb0_pipe_clk_src.clkr,
>         [GCC_USB0_PHY_CFG_AHB_CLK] = &gcc_usb0_phy_cfg_ahb_clk.clkr,
> +       [GCC_USB0_PIPE_CLK] = &gcc_usb0_pipe_clk.clkr,
> +       [GCC_USB0_SLEEP_CLK] = &gcc_usb0_sleep_clk.clkr,
>         [SDCC1_APPS_CLK_SRC] = &sdcc1_apps_clk_src.clkr,
>         [GCC_SDCC1_APPS_CLK] = &gcc_sdcc1_apps_clk.clkr,
>         [SDCC1_ICE_CORE_CLK_SRC] = &sdcc1_ice_core_clk_src.clkr,
> diff --git a/include/dt-bindings/clock/qcom,ipq9574-gcc.h b/include/dt-bindings/clock/qcom,ipq9574-gcc.h
> index c89e96d..96b7c0b 100644
> --- a/include/dt-bindings/clock/qcom,ipq9574-gcc.h
> +++ b/include/dt-bindings/clock/qcom,ipq9574-gcc.h
> @@ -214,4 +214,6 @@
>  #define GCC_SNOC_PCIE1_1LANE_S_CLK                     205
>  #define GCC_SNOC_PCIE2_2LANE_S_CLK                     206
>  #define GCC_SNOC_PCIE3_2LANE_S_CLK                     207
> +#define GCC_USB0_PIPE_CLK                              208
> +#define GCC_USB0_SLEEP_CLK                             209
>  #endif
> --
> 2.7.4
>


-- 
With best wishes
Dmitry