linux-kernel - Re: [PATCH V2 2/5] clk: qcom: apss-ipq-pll: Enable APSS clock driver in IPQ9574

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Message-ID: <1d1cdd40-8bc8-c6e2-bc80-961e6aa2328d@quicinc.com>
Date:   Mon, 20 Feb 2023 19:25:19 +0530
From:   Devi Priya <quic_devipriy@...cinc.com>
To:     Konrad Dybcio <konrad.dybcio@...aro.org>, <agross@...nel.org>,
        <andersson@...nel.org>, <mturquette@...libre.com>,
        <sboyd@...nel.org>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <jassisinghbrar@...il.com>,
        <catalin.marinas@....com>, <will@...nel.org>,
        <dmitry.baryshkov@...aro.org>, <arnd@...db.de>,
        <geert+renesas@...der.be>, <nfraprado@...labora.com>,
        <broonie@...nel.org>, <rafal@...ecki.pl>,
        <linux-arm-msm@...r.kernel.org>, <linux-clk@...r.kernel.org>,
        <devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>
CC:     <quic_srichara@...cinc.com>, <quic_gokulsri@...cinc.com>,
        <quic_sjaganat@...cinc.com>, <quic_kathirav@...cinc.com>,
        <quic_arajkuma@...cinc.com>, <quic_anusha@...cinc.com>
Subject: Re: [PATCH V2 2/5] clk: qcom: apss-ipq-pll: Enable APSS clock driver
 in IPQ9574



On 2/17/2023 7:43 PM, Konrad Dybcio wrote:
> 
> 
> On 17.02.2023 14:41, Devi Priya wrote:
> The subject is.. weird.. something like:
> 
> clk: qcom: apss-ipq-pll: add support for IPQ9574
> 
> would have made more sense, as you're not enabling the clock
> driver, and certainly not *in* the SoC.
Yes agreed. Will update this in V3
> 
>> Add the compatible and configuration values
> Generally the lines in commit messages should be broken at 70-75
> chars, not 40.
> 
Okay
>> for A73 Huayra PLL found on IPQ9574
>>
>> Co-developed-by: Praveenkumar I <quic_ipkumar@...cinc.com>
>> Signed-off-by: Praveenkumar I <quic_ipkumar@...cinc.com>
> Is Praveenkumar's last name "I"?
yes, it is
> 
>> Signed-off-by: Devi Priya <quic_devipriy@...cinc.com>
>> ---
> Otherwise the code looks good, I think.
Sure, thanks
> 
> Konrad
>>   Changes in V2:
>> 	- Rebased the changes on the below series which refactors the
>> 	  driver to accommodate Huayra & Stromer Plus PLLs
>> 	  https://lore.kernel.org/linux-arm-msm/20230217083308.12017-2-quic_kathirav@quicinc.com/
>> 	- Changed the hex value in ipq9574_pll_config to lowercase
>> 	- Dropped the mailbox driver changes as ipq9574 mailbox is
>> 	  compatible with ipq6018
>>
>>   drivers/clk/qcom/apss-ipq-pll.c | 19 +++++++++++++++++++
>>   1 file changed, 19 insertions(+)
>>
>> diff --git a/drivers/clk/qcom/apss-ipq-pll.c b/drivers/clk/qcom/apss-ipq-pll.c
>> index cf4f0d340cbf..ce28d882ee78 100644
>> --- a/drivers/clk/qcom/apss-ipq-pll.c
>> +++ b/drivers/clk/qcom/apss-ipq-pll.c
>> @@ -111,6 +111,18 @@ static const struct alpha_pll_config ipq8074_pll_config = {
>>   	.test_ctl_hi_val = 0x4000,
>>   };
>>   
>> +static const struct alpha_pll_config ipq9574_pll_config = {
>> +	.l = 0x3b,
>> +	.config_ctl_val = 0x200d4828,
>> +	.config_ctl_hi_val = 0x6,
>> +	.early_output_mask = BIT(3),
>> +	.aux2_output_mask = BIT(2),
>> +	.aux_output_mask = BIT(1),
>> +	.main_output_mask = BIT(0),
>> +	.test_ctl_val = 0x0,
>> +	.test_ctl_hi_val = 0x4000,
>> +};
>> +
>>   struct apss_pll_data {
>>   	int pll_type;
>>   	struct clk_alpha_pll *pll;
>> @@ -135,6 +147,12 @@ static struct apss_pll_data ipq6018_pll_data = {
>>   	.pll_config = &ipq6018_pll_config,
>>   };
>>   
>> +static struct apss_pll_data ipq9574_pll_data = {
>> +	.pll_type = CLK_ALPHA_PLL_TYPE_HUAYRA,
>> +	.pll = &ipq_pll_huayra,
>> +	.pll_config = &ipq9574_pll_config,
>> +};
>> +
>>   static const struct regmap_config ipq_pll_regmap_config = {
>>   	.reg_bits		= 32,
>>   	.reg_stride		= 4,
>> @@ -180,6 +198,7 @@ static const struct of_device_id apss_ipq_pll_match_table[] = {
>>   	{ .compatible = "qcom,ipq5332-a53pll", .data = &ipq5332_pll_data },
>>   	{ .compatible = "qcom,ipq6018-a53pll", .data = &ipq6018_pll_data },
>>   	{ .compatible = "qcom,ipq8074-a53pll", .data = &ipq8074_pll_data },
>> +	{ .compatible = "qcom,ipq9574-a73pll", .data = &ipq9574_pll_data },
>>   	{ }
>>   };
>>   MODULE_DEVICE_TABLE(of, apss_ipq_pll_match_table);
Best Regards,
Devi Priya