Re: [PATCH 7/9] clk: qcom: rpmh: Add support for SM8550 rpmh clocks

[Konrad Dybcio <konrad.dybcio@linaro.org>]

On 16/11/2022 11:47, Abel Vesa wrote:
> Adds the RPMH clocks present in SM8550 SoC.
> 
> Signed-off-by: Abel Vesa <abel.vesa@linaro.org>
> ---
>   drivers/clk/qcom/clk-rpmh.c | 110 +++++++++++++++++++++++++++++-------
>   1 file changed, 90 insertions(+), 20 deletions(-)
> 
> diff --git a/drivers/clk/qcom/clk-rpmh.c b/drivers/clk/qcom/clk-rpmh.c
> index 1da45a6e2f29..63975490ab54 100644
> --- a/drivers/clk/qcom/clk-rpmh.c
> +++ b/drivers/clk/qcom/clk-rpmh.c
> @@ -579,6 +579,73 @@ static const struct clk_rpmh_desc clk_rpmh_sm8450 = {
>   	.num_clks = ARRAY_SIZE(sm8450_rpmh_clocks),
>   };
>   
> +#define DEFINE_CLK_RPMH_FIXED(_platform, _name, _name_active,	\
> +				  _parent_name, _name_active_parent,	\
> +				  _div)					\
> +	static struct clk_fixed_factor _platform##_##_name = {		\
> +		.mult = 1,						\
> +		.div = _div,						\
> +		.hw.init = &(struct clk_init_data){			\
> +			.ops = &clk_fixed_factor_ops,			\
> +			.name = #_name,					\
> +			.parent_data =  &(const struct clk_parent_data){ \
> +					.fw_name = #_parent_name,	\
> +					.name = #_parent_name,		\
No need to introduce .name if we do DT properly from the get-go, I think


Konrad
> +			},						\
> +			.num_parents = 1,				\
> +		},							\
> +	};								\
> +	static struct clk_fixed_factor _platform##_##_name_active = {	\
> +		.mult = 1,						\
> +		.div = _div,						\
> +		.hw.init = &(struct clk_init_data){			\
> +			.ops = &clk_fixed_factor_ops,			\
> +			.name = #_name_active,				\
> +			.parent_data =  &(const struct clk_parent_data){ \
> +					.fw_name = #_name_active_parent,\
> +					.name = #_name_active_parent,	\
> +			},						\
> +			.num_parents = 1,				\
> +		},							\
> +	}
> +
> +DEFINE_CLK_RPMH_ARC(sm8550, xo_pad, xo_pad_ao, "xo.lvl", 0x03, 2);
> +DEFINE_CLK_RPMH_FIXED(sm8550, bi_tcxo, bi_tcxo_ao, xo_pad, xo_pad_ao, 2);
> +DEFINE_CLK_RPMH_VRM(sm8550, rf_clk1, rf_clk1_ao, "clka1", 1);
> +DEFINE_CLK_RPMH_VRM(sm8550, rf_clk2, rf_clk2_ao, "clka2", 1);
> +DEFINE_CLK_RPMH_VRM(sm8550, rf_clk3, rf_clk3_ao, "clka3", 1);
> +DEFINE_CLK_RPMH_VRM(sm8550, rf_clk4, rf_clk4_ao, "clka4", 1);
> +DEFINE_CLK_RPMH_VRM(sm8550, ln_bb_clk1, ln_bb_clk1_ao, "clka6", 2);
> +DEFINE_CLK_RPMH_VRM(sm8550, ln_bb_clk2, ln_bb_clk2_ao, "clka7", 2);
> +DEFINE_CLK_RPMH_VRM(sm8550, ln_bb_clk3, ln_bb_clk3_ao, "clka8", 2);
> +
> +static struct clk_hw *sm8550_rpmh_clocks[] = {
> +	[RPMH_CXO_PAD_CLK]      = &sm8550_xo_pad.hw,
> +	[RPMH_CXO_PAD_CLK_A]    = &sm8550_xo_pad_ao.hw,
> +	[RPMH_CXO_CLK]		= &sm8550_bi_tcxo.hw,
> +	[RPMH_CXO_CLK_A]	= &sm8550_bi_tcxo_ao.hw,
> +	[RPMH_LN_BB_CLK1]	= &sm8550_ln_bb_clk1.hw,
> +	[RPMH_LN_BB_CLK1_A]	= &sm8550_ln_bb_clk1_ao.hw,
> +	[RPMH_LN_BB_CLK2]	= &sm8550_ln_bb_clk2.hw,
> +	[RPMH_LN_BB_CLK2_A]	= &sm8550_ln_bb_clk2_ao.hw,
> +	[RPMH_LN_BB_CLK3]	= &sm8550_ln_bb_clk3.hw,
> +	[RPMH_LN_BB_CLK3_A]	= &sm8550_ln_bb_clk3_ao.hw,
> +	[RPMH_RF_CLK1]		= &sm8550_rf_clk1.hw,
> +	[RPMH_RF_CLK1_A]	= &sm8550_rf_clk1_ao.hw,
> +	[RPMH_RF_CLK2]		= &sm8550_rf_clk2.hw,
> +	[RPMH_RF_CLK2_A]	= &sm8550_rf_clk2_ao.hw,
> +	[RPMH_RF_CLK3]		= &sm8550_rf_clk3.hw,
> +	[RPMH_RF_CLK3_A]	= &sm8550_rf_clk3_ao.hw,
> +	[RPMH_RF_CLK4]		= &sm8550_rf_clk4.hw,
> +	[RPMH_RF_CLK4_A]	= &sm8550_rf_clk4_ao.hw,
> +	[RPMH_IPA_CLK]		= &sdm845_ipa.hw,
> +};
> +
> +static const struct clk_rpmh_desc clk_rpmh_sm8550 = {
> +	.clks = sm8550_rpmh_clocks,
> +	.num_clks = ARRAY_SIZE(sm8550_rpmh_clocks),
> +};
> +
>   static struct clk_hw *sc7280_rpmh_clocks[] = {
>   	[RPMH_CXO_CLK]      = &sc7280_bi_tcxo.hw,
>   	[RPMH_CXO_CLK_A]    = &sc7280_bi_tcxo_ao.hw,
> @@ -694,29 +761,31 @@ static int clk_rpmh_probe(struct platform_device *pdev)
>   
>   		name = hw_clks[i]->init->name;
>   
> -		rpmh_clk = to_clk_rpmh(hw_clks[i]);
> -		res_addr = cmd_db_read_addr(rpmh_clk->res_name);
> -		if (!res_addr) {
> -			dev_err(&pdev->dev, "missing RPMh resource address for %s\n",
> -				rpmh_clk->res_name);
> -			return -ENODEV;
> -		}
> +		if (hw_clks[i]->init->ops != &clk_fixed_factor_ops) {
> +			rpmh_clk = to_clk_rpmh(hw_clks[i]);
> +			res_addr = cmd_db_read_addr(rpmh_clk->res_name);
> +			if (!res_addr) {
> +				dev_err(&pdev->dev, "missing RPMh resource address for %s\n",
> +					rpmh_clk->res_name);
> +				return -ENODEV;
> +			}
>   
> -		data = cmd_db_read_aux_data(rpmh_clk->res_name, &aux_data_len);
> -		if (IS_ERR(data)) {
> -			ret = PTR_ERR(data);
> -			dev_err(&pdev->dev,
> -				"error reading RPMh aux data for %s (%d)\n",
> -				rpmh_clk->res_name, ret);
> -			return ret;
> -		}
> +			data = cmd_db_read_aux_data(rpmh_clk->res_name, &aux_data_len);
> +			if (IS_ERR(data)) {
> +				ret = PTR_ERR(data);
> +				dev_err(&pdev->dev,
> +					"error reading RPMh aux data for %s (%d)\n",
> +					rpmh_clk->res_name, ret);
> +				return ret;
> +			}
>   
> -		/* Convert unit from Khz to Hz */
> -		if (aux_data_len == sizeof(*data))
> -			rpmh_clk->unit = le32_to_cpu(data->unit) * 1000ULL;
> +			/* Convert unit from Khz to Hz */
> +			if (aux_data_len == sizeof(*data))
> +				rpmh_clk->unit = le32_to_cpu(data->unit) * 1000ULL;
>   
> -		rpmh_clk->res_addr += res_addr;
> -		rpmh_clk->dev = &pdev->dev;
> +			rpmh_clk->res_addr += res_addr;
> +			rpmh_clk->dev = &pdev->dev;
> +		}
>   
>   		ret = devm_clk_hw_register(&pdev->dev, hw_clks[i]);
>   		if (ret) {
> @@ -752,6 +821,7 @@ static const struct of_device_id clk_rpmh_match_table[] = {
>   	{ .compatible = "qcom,sm8250-rpmh-clk", .data = &clk_rpmh_sm8250},
>   	{ .compatible = "qcom,sm8350-rpmh-clk", .data = &clk_rpmh_sm8350},
>   	{ .compatible = "qcom,sm8450-rpmh-clk", .data = &clk_rpmh_sm8450},
> +	{ .compatible = "qcom,sm8550-rpmh-clk", .data = &clk_rpmh_sm8550},
>   	{ .compatible = "qcom,sc7280-rpmh-clk", .data = &clk_rpmh_sc7280},
>   	{ }
>   };