linux-kernel - Re: [PATCH V3 2/4] clk: qcom: gcc-ipq9574: Enable crypto clocks

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Message-ID: <c451dc43-b5a2-df42-c4a5-0db4c6641b1c@linaro.org>
Date:   Mon, 22 May 2023 14:28:28 +0530
From:   bhupesh.sharma@...aro.org
To:     Anusha Rao <quic_anusha@...cinc.com>, agross@...nel.org,
        andersson@...nel.org, konrad.dybcio@...aro.org,
        thara.gopinath@...il.com, herbert@...dor.apana.org.au,
        davem@...emloft.net, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, conor+dt@...nel.org,
        mturquette@...libre.com, sboyd@...nel.org, p.zabel@...gutronix.de,
        linux-arm-msm@...r.kernel.org, linux-crypto@...r.kernel.org,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-clk@...r.kernel.org, quic_srichara@...cinc.com,
        quic_gokulsri@...cinc.com, quic_sjaganat@...cinc.com,
        quic_kathirav@...cinc.com, quic_arajkuma@...cinc.com,
        quic_poovendh@...cinc.com
Subject: Re: [PATCH V3 2/4] clk: qcom: gcc-ipq9574: Enable crypto clocks



On 5/18/23 7:41 PM, Anusha Rao <quic_anusha@...cinc.com> wrote:
> Enable the clocks required for crypto operation.
> 
> Signed-off-by: Anusha Rao <quic_anusha@...cinc.com>
> ---
>   Changes in V3:
> 	- Added GCC prefix to CRYPTO_CLK_SRC.
> 
>   drivers/clk/qcom/gcc-ipq9574.c | 72 ++++++++++++++++++++++++++++++++++
>   1 file changed, 72 insertions(+)
> 
> diff --git a/drivers/clk/qcom/gcc-ipq9574.c b/drivers/clk/qcom/gcc-ipq9574.c
> index 7b0505f5c255..73663168d72a 100644
> --- a/drivers/clk/qcom/gcc-ipq9574.c
> +++ b/drivers/clk/qcom/gcc-ipq9574.c
> @@ -728,6 +728,41 @@ static struct clk_rcg2 blsp1_uart6_apps_clk_src = {
>   	},
>   };
>   
> +static const struct freq_tbl ftbl_gcc_crypto_clk_src[] = {
> +	F(160000000, P_GPLL0, 5, 0, 0),
> +	{ }
> +};
> +
> +static struct clk_rcg2 gcc_crypto_clk_src = {
> +	.cmd_rcgr = 0x16004,
> +	.freq_tbl = ftbl_gcc_crypto_clk_src,
> +	.hid_width = 5,
> +	.parent_map = gcc_xo_gpll0_gpll0_out_main_div2_map,
> +	.clkr.hw.init = &(const struct clk_init_data) {
> +		.name = "gcc_crypto_clk_src",
> +		.parent_data = gcc_xo_gpll0_gpll0_out_main_div2,
> +		.num_parents = ARRAY_SIZE(gcc_xo_gpll0_gpll0_out_main_div2),
> +		.ops = &clk_rcg2_ops,
> +	},
> +};
> +
> +static struct clk_branch gcc_crypto_clk = {
> +	.halt_reg = 0x1600c,
> +	.halt_check = BRANCH_HALT_VOTED,
> +	.clkr = {
> +		.enable_reg = 0x0b004,
> +		.enable_mask = BIT(14),
> +		.hw.init = &(const struct clk_init_data) {
> +			.name = "gcc_crypto_clk",
> +			.parent_hws = (const struct clk_hw *[]) {
> +				&gcc_crypto_clk_src.clkr.hw },
> +			.num_parents = 1,
> +			.flags = CLK_SET_RATE_PARENT,
> +			.ops = &clk_branch2_ops,
> +		},
> +	},
> +};
> +
>   static struct clk_branch gcc_apss_ahb_clk = {
>   	.halt_reg = 0x24018,
>   	.halt_check = BRANCH_HALT_VOTED,
> @@ -2071,6 +2106,38 @@ static struct clk_rcg2 pcnoc_bfdcd_clk_src = {
>   	},
>   };
>   
> +static struct clk_branch gcc_crypto_axi_clk = {
> +	.halt_reg = 0x16010,
> +	.clkr = {
> +		.enable_reg = 0x16010,
> +		.enable_mask = BIT(0),
> +		.hw.init = &(const struct clk_init_data) {
> +			.name = "gcc_crypto_axi_clk",
> +			.parent_hws = (const struct clk_hw *[]) {
> +				&pcnoc_bfdcd_clk_src.clkr.hw },
> +			.num_parents = 1,
> +			.flags = CLK_SET_RATE_PARENT,
> +			.ops = &clk_branch2_ops,
> +		},
> +	},
> +};
> +
> +static struct clk_branch gcc_crypto_ahb_clk = {
> +	.halt_reg = 0x16014,
> +	.clkr = {
> +		.enable_reg = 0x16014,
> +		.enable_mask = BIT(0),
> +		.hw.init = &(const struct clk_init_data) {
> +			.name = "gcc_crypto_ahb_clk",
> +			.parent_hws = (const struct clk_hw *[]) {
> +				&pcnoc_bfdcd_clk_src.clkr.hw },
> +			.num_parents = 1,
> +			.flags = CLK_SET_RATE_PARENT,
> +			.ops = &clk_branch2_ops,
> +		},
> +	},
> +};
> +
>   static struct clk_branch gcc_nsscfg_clk = {
>   	.halt_reg = 0x1702c,
>   	.clkr = {
> @@ -4036,6 +4103,10 @@ static struct clk_regmap *gcc_ipq9574_clks[] = {
>   	[GCC_SNOC_PCIE1_1LANE_S_CLK] = &gcc_snoc_pcie1_1lane_s_clk.clkr,
>   	[GCC_SNOC_PCIE2_2LANE_S_CLK] = &gcc_snoc_pcie2_2lane_s_clk.clkr,
>   	[GCC_SNOC_PCIE3_2LANE_S_CLK] = &gcc_snoc_pcie3_2lane_s_clk.clkr,
> +	[GCC_CRYPTO_CLK_SRC] = &gcc_crypto_clk_src.clkr,
> +	[GCC_CRYPTO_CLK] = &gcc_crypto_clk.clkr,
> +	[GCC_CRYPTO_AXI_CLK] = &gcc_crypto_axi_clk.clkr,
> +	[GCC_CRYPTO_AHB_CLK] = &gcc_crypto_ahb_clk.clkr,
>   };

Can we please add these in alphabetical order. For e.g. here these entries would follow those for '[GCC_CMN_BLK_APU_ARES] = { 0x3a010, 2 },'

>   static const struct qcom_reset_map gcc_ipq9574_resets[] = {
> @@ -4193,6 +4264,7 @@ static const struct qcom_reset_map gcc_ipq9574_resets[] = {
>   	[GCC_WCSS_ECAHB_ARES] = { 0x25070, 0 },
>   	[GCC_WCSS_Q6_BCR] = { 0x18000, 0 },
>   	[GCC_WCSS_Q6_TBU_BCR] = { 0x12054, 0 },
> +	[GCC_CRYPTO_BCR] = { 0x16000, 0 },

Same as above.

With the above addressed:
Reviewed-by: Bhupesh Sharma <bhupesh.sharma@...aro.org>

Thanks.

>   };
>   
>   static const struct of_device_id gcc_ipq9574_match_table[] = {
>