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[PATCH 2/4] clk: qcom: rpmh: Add RPMH clocks support for SM4450

Ajit Pandey posted 4 patches 2 years, 3 months ago
There is a newer version of this series
[PATCH 2/4] clk: qcom: rpmh: Add RPMH clocks support for SM4450
Posted by Ajit Pandey 2 years, 3 months ago 
Add support for RPMH clocks for SM4450 platform.

Signed-off-by: Ajit Pandey <quic_ajipan@quicinc.com>
---
 drivers/clk/qcom/clk-rpmh.c | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/drivers/clk/qcom/clk-rpmh.c b/drivers/clk/qcom/clk-rpmh.c
index 4c5b552b47b6..5d853fd43294 100644
--- a/drivers/clk/qcom/clk-rpmh.c
+++ b/drivers/clk/qcom/clk-rpmh.c
@@ -350,6 +350,7 @@ DEFINE_CLK_RPMH_VRM(ln_bb_clk3, _a2, "lnbclka3", 2);
 
 DEFINE_CLK_RPMH_VRM(ln_bb_clk1, _a4, "lnbclka1", 4);
 DEFINE_CLK_RPMH_VRM(ln_bb_clk2, _a4, "lnbclka2", 4);
+DEFINE_CLK_RPMH_VRM(ln_bb_clk3, _a4, "lnbclka3", 4);
 
 DEFINE_CLK_RPMH_VRM(ln_bb_clk2, _g4, "lnbclkg2", 4);
 DEFINE_CLK_RPMH_VRM(ln_bb_clk3, _g4, "lnbclkg3", 4);
@@ -717,6 +718,25 @@ static const struct clk_rpmh_desc clk_rpmh_sdx75 = {
 	.num_clks = ARRAY_SIZE(sdx75_rpmh_clocks),
 };
 
+static struct clk_hw *sm4450_rpmh_clocks[] = {
+	[RPMH_CXO_CLK]		= &clk_rpmh_bi_tcxo_div4.hw,
+	[RPMH_CXO_CLK_A]	= &clk_rpmh_bi_tcxo_div4_ao.hw,
+	[RPMH_LN_BB_CLK2]	= &clk_rpmh_ln_bb_clk2_a4.hw,
+	[RPMH_LN_BB_CLK2_A]	= &clk_rpmh_ln_bb_clk2_a4_ao.hw,
+	[RPMH_LN_BB_CLK3]       = &clk_rpmh_ln_bb_clk3_a4.hw,
+	[RPMH_LN_BB_CLK3_A]     = &clk_rpmh_ln_bb_clk3_a4_ao.hw,
+	[RPMH_RF_CLK1]		= &clk_rpmh_rf_clk1_a.hw,
+	[RPMH_RF_CLK1_A]	= &clk_rpmh_rf_clk1_a_ao.hw,
+	[RPMH_RF_CLK5]		= &clk_rpmh_rf_clk5_a.hw,
+	[RPMH_RF_CLK5_A]	= &clk_rpmh_rf_clk5_a_ao.hw,
+	[RPMH_IPA_CLK]		= &clk_rpmh_ipa.hw,
+};
+
+static const struct clk_rpmh_desc clk_rpmh_sm4450 = {
+	.clks = sm4450_rpmh_clocks,
+	.num_clks = ARRAY_SIZE(sm4450_rpmh_clocks),
+};
+
 static struct clk_hw *of_clk_rpmh_hw_get(struct of_phandle_args *clkspec,
 					 void *data)
 {
@@ -810,6 +830,7 @@ static const struct of_device_id clk_rpmh_match_table[] = {
 	{ .compatible = "qcom,sdx55-rpmh-clk",  .data = &clk_rpmh_sdx55},
 	{ .compatible = "qcom,sdx65-rpmh-clk",  .data = &clk_rpmh_sdx65},
 	{ .compatible = "qcom,sdx75-rpmh-clk",  .data = &clk_rpmh_sdx75},
+	{ .compatible = "qcom,sm4450-rpmh-clk", .data = &clk_rpmh_sm4450},
 	{ .compatible = "qcom,sm6350-rpmh-clk", .data = &clk_rpmh_sm6350},
 	{ .compatible = "qcom,sm8150-rpmh-clk", .data = &clk_rpmh_sm8150},
 	{ .compatible = "qcom,sm8250-rpmh-clk", .data = &clk_rpmh_sm8250},
-- 
2.25.1
Re: [PATCH 2/4] clk: qcom: rpmh: Add RPMH clocks support for SM4450
Posted by Neil Armstrong 2 years, 3 months ago 
Hi,

On 24/08/2023 19:34, Ajit Pandey wrote:
> Add support for RPMH clocks for SM4450 platform.
> 
> Signed-off-by: Ajit Pandey <quic_ajipan@quicinc.com>
> ---
>   drivers/clk/qcom/clk-rpmh.c | 21 +++++++++++++++++++++
>   1 file changed, 21 insertions(+)
> 
> diff --git a/drivers/clk/qcom/clk-rpmh.c b/drivers/clk/qcom/clk-rpmh.c
> index 4c5b552b47b6..5d853fd43294 100644
> --- a/drivers/clk/qcom/clk-rpmh.c
> +++ b/drivers/clk/qcom/clk-rpmh.c
> @@ -350,6 +350,7 @@ DEFINE_CLK_RPMH_VRM(ln_bb_clk3, _a2, "lnbclka3", 2);
>   
>   DEFINE_CLK_RPMH_VRM(ln_bb_clk1, _a4, "lnbclka1", 4);
>   DEFINE_CLK_RPMH_VRM(ln_bb_clk2, _a4, "lnbclka2", 4);
> +DEFINE_CLK_RPMH_VRM(ln_bb_clk3, _a4, "lnbclka3", 4);
>   
>   DEFINE_CLK_RPMH_VRM(ln_bb_clk2, _g4, "lnbclkg2", 4);
>   DEFINE_CLK_RPMH_VRM(ln_bb_clk3, _g4, "lnbclkg3", 4);
> @@ -717,6 +718,25 @@ static const struct clk_rpmh_desc clk_rpmh_sdx75 = {
>   	.num_clks = ARRAY_SIZE(sdx75_rpmh_clocks),
>   };
>   
> +static struct clk_hw *sm4450_rpmh_clocks[] = {
> +	[RPMH_CXO_CLK]		= &clk_rpmh_bi_tcxo_div4.hw,
> +	[RPMH_CXO_CLK_A]	= &clk_rpmh_bi_tcxo_div4_ao.hw,

Are you sure about div4 here ?

Kailua uses div2 because the CXO input gets used divided by 2
by PHYs and divided by 4 for GCC/DISPCC/...

This is why we introduced a div2 clock in DT used to feed GCC/DISPCC/...

Neil

> +	[RPMH_LN_BB_CLK2]	= &clk_rpmh_ln_bb_clk2_a4.hw,
> +	[RPMH_LN_BB_CLK2_A]	= &clk_rpmh_ln_bb_clk2_a4_ao.hw,
> +	[RPMH_LN_BB_CLK3]       = &clk_rpmh_ln_bb_clk3_a4.hw,
> +	[RPMH_LN_BB_CLK3_A]     = &clk_rpmh_ln_bb_clk3_a4_ao.hw,
> +	[RPMH_RF_CLK1]		= &clk_rpmh_rf_clk1_a.hw,
> +	[RPMH_RF_CLK1_A]	= &clk_rpmh_rf_clk1_a_ao.hw,
> +	[RPMH_RF_CLK5]		= &clk_rpmh_rf_clk5_a.hw,
> +	[RPMH_RF_CLK5_A]	= &clk_rpmh_rf_clk5_a_ao.hw,
> +	[RPMH_IPA_CLK]		= &clk_rpmh_ipa.hw,
> +};
> +
> +static const struct clk_rpmh_desc clk_rpmh_sm4450 = {
> +	.clks = sm4450_rpmh_clocks,
> +	.num_clks = ARRAY_SIZE(sm4450_rpmh_clocks),
> +};
> +
>   static struct clk_hw *of_clk_rpmh_hw_get(struct of_phandle_args *clkspec,
>   					 void *data)
>   {
> @@ -810,6 +830,7 @@ static const struct of_device_id clk_rpmh_match_table[] = {
>   	{ .compatible = "qcom,sdx55-rpmh-clk",  .data = &clk_rpmh_sdx55},
>   	{ .compatible = "qcom,sdx65-rpmh-clk",  .data = &clk_rpmh_sdx65},
>   	{ .compatible = "qcom,sdx75-rpmh-clk",  .data = &clk_rpmh_sdx75},
> +	{ .compatible = "qcom,sm4450-rpmh-clk", .data = &clk_rpmh_sm4450},
>   	{ .compatible = "qcom,sm6350-rpmh-clk", .data = &clk_rpmh_sm6350},
>   	{ .compatible = "qcom,sm8150-rpmh-clk", .data = &clk_rpmh_sm8150},
>   	{ .compatible = "qcom,sm8250-rpmh-clk", .data = &clk_rpmh_sm8250},
Re: [PATCH 2/4] clk: qcom: rpmh: Add RPMH clocks support for SM4450
Posted by Ajit Pandey 2 years, 3 months ago 

On 8/25/2023 7:31 PM, Neil Armstrong wrote:
> Hi,
> 
> On 24/08/2023 19:34, Ajit Pandey wrote:
>> Add support for RPMH clocks for SM4450 platform.
>>
>> Signed-off-by: Ajit Pandey <quic_ajipan@quicinc.com>
>> ---
>>   drivers/clk/qcom/clk-rpmh.c | 21 +++++++++++++++++++++
>>   1 file changed, 21 insertions(+)
>>
>> diff --git a/drivers/clk/qcom/clk-rpmh.c b/drivers/clk/qcom/clk-rpmh.c
>> index 4c5b552b47b6..5d853fd43294 100644
>> --- a/drivers/clk/qcom/clk-rpmh.c
>> +++ b/drivers/clk/qcom/clk-rpmh.c
>> @@ -350,6 +350,7 @@ DEFINE_CLK_RPMH_VRM(ln_bb_clk3, _a2, "lnbclka3", 2);
>>   DEFINE_CLK_RPMH_VRM(ln_bb_clk1, _a4, "lnbclka1", 4);
>>   DEFINE_CLK_RPMH_VRM(ln_bb_clk2, _a4, "lnbclka2", 4);
>> +DEFINE_CLK_RPMH_VRM(ln_bb_clk3, _a4, "lnbclka3", 4);
>>   DEFINE_CLK_RPMH_VRM(ln_bb_clk2, _g4, "lnbclkg2", 4);
>>   DEFINE_CLK_RPMH_VRM(ln_bb_clk3, _g4, "lnbclkg3", 4);
>> @@ -717,6 +718,25 @@ static const struct clk_rpmh_desc clk_rpmh_sdx75 = {
>>       .num_clks = ARRAY_SIZE(sdx75_rpmh_clocks),
>>   };
>> +static struct clk_hw *sm4450_rpmh_clocks[] = {
>> +    [RPMH_CXO_CLK]        = &clk_rpmh_bi_tcxo_div4.hw,
>> +    [RPMH_CXO_CLK_A]    = &clk_rpmh_bi_tcxo_div4_ao.hw,
> 
> Are you sure about div4 here ?
> 
> Kailua uses div2 because the CXO input gets used divided by 2
> by PHYs and divided by 4 for GCC/DISPCC/...
> 
> This is why we introduced a div2 clock in DT used to feed GCC/DISPCC/...
> 
> Neil

Yes div4 is the correct divider only for sm4450 as CXO input get 
directly divided by 4 only. This is someting similiar to sm8450 and 
there is no in between div2 divider like Kailua.

> 
>> +    [RPMH_LN_BB_CLK2]    = &clk_rpmh_ln_bb_clk2_a4.hw,
>> +    [RPMH_LN_BB_CLK2_A]    = &clk_rpmh_ln_bb_clk2_a4_ao.hw,
>> +    [RPMH_LN_BB_CLK3]       = &clk_rpmh_ln_bb_clk3_a4.hw,
>> +    [RPMH_LN_BB_CLK3_A]     = &clk_rpmh_ln_bb_clk3_a4_ao.hw,
>> +    [RPMH_RF_CLK1]        = &clk_rpmh_rf_clk1_a.hw,
>> +    [RPMH_RF_CLK1_A]    = &clk_rpmh_rf_clk1_a_ao.hw,
>> +    [RPMH_RF_CLK5]        = &clk_rpmh_rf_clk5_a.hw,
>> +    [RPMH_RF_CLK5_A]    = &clk_rpmh_rf_clk5_a_ao.hw,
>> +    [RPMH_IPA_CLK]        = &clk_rpmh_ipa.hw,
>> +};
>> +
>> +static const struct clk_rpmh_desc clk_rpmh_sm4450 = {
>> +    .clks = sm4450_rpmh_clocks,
>> +    .num_clks = ARRAY_SIZE(sm4450_rpmh_clocks),
>> +};
>> +
>>   static struct clk_hw *of_clk_rpmh_hw_get(struct of_phandle_args 
>> *clkspec,
>>                        void *data)
>>   {
>> @@ -810,6 +830,7 @@ static const struct of_device_id 
>> clk_rpmh_match_table[] = {
>>       { .compatible = "qcom,sdx55-rpmh-clk",  .data = &clk_rpmh_sdx55},
>>       { .compatible = "qcom,sdx65-rpmh-clk",  .data = &clk_rpmh_sdx65},
>>       { .compatible = "qcom,sdx75-rpmh-clk",  .data = &clk_rpmh_sdx75},
>> +    { .compatible = "qcom,sm4450-rpmh-clk", .data = &clk_rpmh_sm4450},
>>       { .compatible = "qcom,sm6350-rpmh-clk", .data = &clk_rpmh_sm6350},
>>       { .compatible = "qcom,sm8150-rpmh-clk", .data = &clk_rpmh_sm8150},
>>       { .compatible = "qcom,sm8250-rpmh-clk", .data = &clk_rpmh_sm8250},
>
Re: [PATCH 2/4] clk: qcom: rpmh: Add RPMH clocks support for SM4450
Posted by neil.armstrong@linaro.org 2 years, 3 months ago 
On 29/08/2023 07:51, Ajit Pandey wrote:
> 
> 
> On 8/25/2023 7:31 PM, Neil Armstrong wrote:
>> Hi,
>>
>> On 24/08/2023 19:34, Ajit Pandey wrote:
>>> Add support for RPMH clocks for SM4450 platform.
>>>
>>> Signed-off-by: Ajit Pandey <quic_ajipan@quicinc.com>
>>> ---
>>>   drivers/clk/qcom/clk-rpmh.c | 21 +++++++++++++++++++++
>>>   1 file changed, 21 insertions(+)
>>>
>>> diff --git a/drivers/clk/qcom/clk-rpmh.c b/drivers/clk/qcom/clk-rpmh.c
>>> index 4c5b552b47b6..5d853fd43294 100644
>>> --- a/drivers/clk/qcom/clk-rpmh.c
>>> +++ b/drivers/clk/qcom/clk-rpmh.c
>>> @@ -350,6 +350,7 @@ DEFINE_CLK_RPMH_VRM(ln_bb_clk3, _a2, "lnbclka3", 2);
>>>   DEFINE_CLK_RPMH_VRM(ln_bb_clk1, _a4, "lnbclka1", 4);
>>>   DEFINE_CLK_RPMH_VRM(ln_bb_clk2, _a4, "lnbclka2", 4);
>>> +DEFINE_CLK_RPMH_VRM(ln_bb_clk3, _a4, "lnbclka3", 4);
>>>   DEFINE_CLK_RPMH_VRM(ln_bb_clk2, _g4, "lnbclkg2", 4);
>>>   DEFINE_CLK_RPMH_VRM(ln_bb_clk3, _g4, "lnbclkg3", 4);
>>> @@ -717,6 +718,25 @@ static const struct clk_rpmh_desc clk_rpmh_sdx75 = {
>>>       .num_clks = ARRAY_SIZE(sdx75_rpmh_clocks),
>>>   };
>>> +static struct clk_hw *sm4450_rpmh_clocks[] = {
>>> +    [RPMH_CXO_CLK]        = &clk_rpmh_bi_tcxo_div4.hw,
>>> +    [RPMH_CXO_CLK_A]    = &clk_rpmh_bi_tcxo_div4_ao.hw,
>>
>> Are you sure about div4 here ?
>>
>> Kailua uses div2 because the CXO input gets used divided by 2
>> by PHYs and divided by 4 for GCC/DISPCC/...
>>
>> This is why we introduced a div2 clock in DT used to feed GCC/DISPCC/...
>>
>> Neil
> 
> Yes div4 is the correct divider only for sm4450 as CXO input get directly divided by 4 only. This is someting similiar to sm8450 and there is no in between div2 divider like Kailua.

Ack, thx for checking !

Neil

> 
>>
>>> +    [RPMH_LN_BB_CLK2]    = &clk_rpmh_ln_bb_clk2_a4.hw,
>>> +    [RPMH_LN_BB_CLK2_A]    = &clk_rpmh_ln_bb_clk2_a4_ao.hw,
>>> +    [RPMH_LN_BB_CLK3]       = &clk_rpmh_ln_bb_clk3_a4.hw,
>>> +    [RPMH_LN_BB_CLK3_A]     = &clk_rpmh_ln_bb_clk3_a4_ao.hw,
>>> +    [RPMH_RF_CLK1]        = &clk_rpmh_rf_clk1_a.hw,
>>> +    [RPMH_RF_CLK1_A]    = &clk_rpmh_rf_clk1_a_ao.hw,
>>> +    [RPMH_RF_CLK5]        = &clk_rpmh_rf_clk5_a.hw,
>>> +    [RPMH_RF_CLK5_A]    = &clk_rpmh_rf_clk5_a_ao.hw,
>>> +    [RPMH_IPA_CLK]        = &clk_rpmh_ipa.hw,
>>> +};
>>> +
>>> +static const struct clk_rpmh_desc clk_rpmh_sm4450 = {
>>> +    .clks = sm4450_rpmh_clocks,
>>> +    .num_clks = ARRAY_SIZE(sm4450_rpmh_clocks),
>>> +};
>>> +
>>>   static struct clk_hw *of_clk_rpmh_hw_get(struct of_phandle_args *clkspec,
>>>                        void *data)
>>>   {
>>> @@ -810,6 +830,7 @@ static const struct of_device_id clk_rpmh_match_table[] = {
>>>       { .compatible = "qcom,sdx55-rpmh-clk",  .data = &clk_rpmh_sdx55},
>>>       { .compatible = "qcom,sdx65-rpmh-clk",  .data = &clk_rpmh_sdx65},
>>>       { .compatible = "qcom,sdx75-rpmh-clk",  .data = &clk_rpmh_sdx75},
>>> +    { .compatible = "qcom,sm4450-rpmh-clk", .data = &clk_rpmh_sm4450},
>>>       { .compatible = "qcom,sm6350-rpmh-clk", .data = &clk_rpmh_sm6350},
>>>       { .compatible = "qcom,sm8150-rpmh-clk", .data = &clk_rpmh_sm8150},
>>>       { .compatible = "qcom,sm8250-rpmh-clk", .data = &clk_rpmh_sm8250},
>>
Re: [PATCH 2/4] clk: qcom: rpmh: Add RPMH clocks support for SM4450
Posted by Dmitry Baryshkov 2 years, 3 months ago 
On Thu, 24 Aug 2023 at 20:35, Ajit Pandey <quic_ajipan@quicinc.com> wrote:
>
> Add support for RPMH clocks for SM4450 platform.
>
> Signed-off-by: Ajit Pandey <quic_ajipan@quicinc.com>
> ---
>  drivers/clk/qcom/clk-rpmh.c | 21 +++++++++++++++++++++
>  1 file changed, 21 insertions(+)

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

-- 
With best wishes
Dmitry

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