linux-kernel - Re: [PATCH v1 2/4] dt-bindings: clock: Add YAML schemas for LPASS clocks on SC7180

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Date:   Sun, 17 May 2020 14:50:41 +0530
From:   Taniya Das <tdas@...eaurora.org>
To:     Rob Herring <robh@...nel.org>
Cc:     Stephen Boyd <sboyd@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        David Brown <david.brown@...aro.org>,
        Rajendra Nayak <rnayak@...eaurora.org>,
        linux-arm-msm@...r.kernel.org, linux-soc@...r.kernel.org,
        linux-clk@...r.kernel.org, linux-kernel@...r.kernel.org,
        Andy Gross <agross@...nel.org>, devicetree@...r.kernel.org
Subject: Re: [PATCH v1 2/4] dt-bindings: clock: Add YAML schemas for LPASS
 clocks on SC7180

Hello Rob,

Thanks for the review.

On 4/5/2020 7:39 AM, Rob Herring wrote:

>> +
>> +  reg:
>> +    minItems: 1
>> +    maxItems: 2
> 
> Need to define what each one is when there are 2.
> 

Yes will define them in the next patch.

>> +
>> +required:
>> +  - compatible
>> +  - reg
>> +  - clocks
>> +  - clock-names
>> +  - '#clock-cells'
>> +  - '#power-domain-cells'
>> +
>> +additionalProperties: false
>> +
>> +examples:
>> +  - |
>> +    #include <dt-bindings/clock/qcom,gcc-sc7180.h>
>> +    #include <dt-bindings/clock/qcom,lpasscorecc-sc7180.h>
>> +    clock-controller@...00000 {
>> +      compatible = "qcom,sc7180-lpasshm";
>> +        reg = <0 0x63000000 0 0x28>;
>> +        clocks = <&gcc GCC_LPASS_CFG_NOC_SWAY_CLK>;
>> +        clock-names = "gcc_lpass_sway";
>> +        #clock-cells = <1>;
>> +        #power-domain-cells = <1>;
>> +    };
>> +
>> +  - |
>> +    clock-controller@...00000 {
>> +        compatible = "qcom,sc7180-lpasscorecc";
>> +        reg = <0 0x62d00000 0 0x50000>,
>> +            <0 0x62780000 0 0x30000>;
>> +        clocks = <&gcc GCC_LPASS_CFG_NOC_SWAY_CLK>;
>> +        clock-names = "gcc_lpass_sway";
>> +        power-domains = <&lpass_hm LPASS_CORE_HM_GDSCR>;
>> +        #clock-cells = <1>;
>> +        #power-domain-cells = <1>;
>> +    };
>> +...


>   /* GCC resets */
>>   #define GCC_QUSB2PHY_PRIM_BCR					0
>> diff --git a/include/dt-bindings/clock/qcom,lpasscorecc-sc7180.h b/include/dt-bindings/clock/qcom,lpasscorecc-sc7180.h
>> new file mode 100644
>> index 0000000..9466d5e
>> --- /dev/null
>> +++ b/include/dt-bindings/clock/qcom,lpasscorecc-sc7180.h
>> @@ -0,0 +1,28 @@
>> +/* SPDX-License-Identifier: GPL-2.0-only */
>> +/*
>> + * Copyright (c) 2020, The Linux Foundation. All rights reserved.
>> + */
>> +
>> +#ifndef _DT_BINDINGS_CLK_QCOM_LPASS_CORE_CC_SC7180_H
>> +#define _DT_BINDINGS_CLK_QCOM_LPASS_CORE_CC_SC7180_H
>> +
>> +/* LPASS_CORE_CC clocks */
>> +#define LPASS_LPAAUDIO_DIG_PLL				0
>> +#define LPASS_LPAAUDIO_DIG_PLL_OUT_ODD			1
>> +#define CORE_CLK_SRC					2
>> +#define EXT_MCLK0_CLK_SRC				3
>> +#define LPAIF_PRI_CLK_SRC				4
>> +#define LPAIF_SEC_CLK_SRC				5
>> +#define LPASS_AUDIO_CORE_CORE_CLK			6
>> +#define LPASS_AUDIO_CORE_EXT_MCLK0_CLK			7
>> +#define LPASS_AUDIO_CORE_LPAIF_PRI_IBIT_CLK		8
>> +#define LPASS_AUDIO_CORE_LPAIF_SEC_IBIT_CLK		9
>> +#define LPASS_AUDIO_CORE_SYSNOC_MPORT_CORE_CLK		10
>> +
>> +/* LPASS power domains */
>> +#define LPASS_CORE_HM_GDSCR				0
>> +
>> +#define LPASS_AUDIO_HM_GDSCR				0
> 
> Kind of odd that 2 are the same value.
> 

These GDSCs are from two different domains. I will update the comments 
in the next patch.

>> +#define LPASS_PDC_HM_GDSCR				1
>> +
>> +#endif
>> --
>> Qualcomm INDIA, on behalf of Qualcomm Innovation Center, Inc.is a member
>> of the Code Aurora Forum, hosted by the  Linux Foundation.
>>

-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation.

--