linux-kernel - Re: [PATCH V2 2/4] clk: qcom: branch: Add mem ops support for branch2 clocks

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Message-ID: <9888cc31bca1e1e148e3a0e4be4a0b5d.sboyd@kernel.org>
Date:   Thu, 12 Oct 2023 13:24:42 -0700
From:   Stephen Boyd <sboyd@...nel.org>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Imran Shaik <quic_imrashai@...cinc.com>,
        Konrad Dybcio <konrad.dybcio@...aro.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Michael Turquette <mturquette@...libre.com>,
        Rob Herring <robh+dt@...nel.org>
Cc:     Taniya Das <quic_tdas@...cinc.com>,
        Imran Shaik <quic_imrashai@...cinc.com>,
        linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        Ajit Pandey <quic_ajipan@...cinc.com>,
        Jagadeesh Kona <quic_jkona@...cinc.com>
Subject: Re: [PATCH V2 2/4] clk: qcom: branch: Add mem ops support for branch2 clocks

Quoting Imran Shaik (2023-10-11 02:00:26)
> diff --git a/drivers/clk/qcom/clk-branch.c b/drivers/clk/qcom/clk-branch.c
> index fc4735f74f0f..9ac8d04b425a 100644
> --- a/drivers/clk/qcom/clk-branch.c
> +++ b/drivers/clk/qcom/clk-branch.c
> @@ -134,6 +135,42 @@ static void clk_branch2_disable(struct clk_hw *hw)
>         clk_branch_toggle(hw, false, clk_branch2_check_halt);
>  }
>  
> +static int clk_branch2_mem_enable(struct clk_hw *hw)
> +{
> +       struct clk_mem_branch *mem_br = to_clk_mem_branch(hw);
> +       const char *name = clk_hw_get_name(&mem_br->branch.clkr.hw);
> +       u32 val;
> +       int timeout = 200, ret;

const int timeout?

> +
> +       regmap_update_bits(mem_br->branch.clkr.regmap, mem_br->mem_enable_reg,
> +                       mem_br->mem_enable_ack_bit, mem_br->mem_enable_ack_bit);
> +
> +       ret = regmap_read_poll_timeout(mem_br->branch.clkr.regmap, mem_br->mem_ack_reg,
> +                       val, val & mem_br->mem_enable_ack_bit, 0, timeout);

The 'mem_br->branch' is used a few times so please make another local
variable for that called 'branch'.

> +       if (ret) {
> +               WARN(1, "%s mem enable failed", name);

Needs a newline on the message string.

> +               return ret;
> +       }
> +
> +       return clk_branch2_enable(hw);
> +}
> +
> +static void clk_branch2_mem_disable(struct clk_hw *hw)
> +{
> +       struct clk_mem_branch *mem_br = to_clk_mem_branch(hw);
> +
> +       regmap_update_bits(mem_br->branch.clkr.regmap, mem_br->mem_enable_reg,
> +                                               mem_br->mem_enable_ack_bit, 0);

Please add a newline here.

> +       return clk_branch2_disable(hw);
> +}
> +