linux-kernel - Re: [PATCH v5 6/7] soc: mediatek: pwrap: add support for MT7622 SoC

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Message-ID: <d315cabb-e269-04f1-199d-56f7f732db6d@gmail.com>
Date:   Tue, 17 Oct 2017 12:34:36 +0200
From:   Matthias Brugger <matthias.bgg@...il.com>
To:     Sean Wang <sean.wang@...iatek.com>
Cc:     robh+dt@...nel.org, mark.rutland@....com,
        devicetree@...r.kernel.org, linux-mediatek@...ts.infradead.org,
        chen.zhong@...iatek.com, chenglin.xu@...iatek.com,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v5 6/7] soc: mediatek: pwrap: add support for MT7622 SoC



On 10/17/2017 11:49 AM, Sean Wang wrote:
> On Mon, 2017-10-16 at 17:00 +0200, Matthias Brugger wrote:
>>
>> On 10/16/2017 09:07 AM, sean.wang@...iatek.com wrote:
>>> From: Chenglin Xu <chenglin.xu@...iatek.com>
>>>
>>> Add the registers, callbacks and data structures required to make the
>>> PMIC wrapper work on MT7622.
>>>
>>> Signed-off-by: Chenglin Xu <chenglin.xu@...iatek.com>
>>> Signed-off-by: Chen Zhong <chen.zhong@...iatek.com>
>>> Signed-off-by: Sean Wang <sean.wang@...iatek.com>
>>> ---
>>>    drivers/soc/mediatek/mtk-pmic-wrap.c | 180 +++++++++++++++++++++++++++++++++++
>>>    1 file changed, 180 insertions(+)
>>>
>>> diff --git a/drivers/soc/mediatek/mtk-pmic-wrap.c b/drivers/soc/mediatek/mtk-pmic-wrap.c
>>> index a4cdc5f..9ac304a 100644
>>> --- a/drivers/soc/mediatek/mtk-pmic-wrap.c
>>> +++ b/drivers/soc/mediatek/mtk-pmic-wrap.c
>>> @@ -214,6 +214,36 @@ enum pwrap_regs {
>>>    	PWRAP_ADC_RDATA_ADDR1,
>>>    	PWRAP_ADC_RDATA_ADDR2,
>>>    
>>> +	/* MT7622 only regs */
>>> +	PWRAP_EINT_STA0_ADR,
>>> +	PWRAP_EINT_STA1_ADR,
>>> +	PWRAP_STA,
>>> +	PWRAP_CLR,
>>> +	PWRAP_DVFS_ADR8,
>>> +	PWRAP_DVFS_WDATA8,
>>> +	PWRAP_DVFS_ADR9,
>>> +	PWRAP_DVFS_WDATA9,
>>> +	PWRAP_DVFS_ADR10,
>>> +	PWRAP_DVFS_WDATA10,
>>> +	PWRAP_DVFS_ADR11,
>>> +	PWRAP_DVFS_WDATA11,
>>> +	PWRAP_DVFS_ADR12,
>>> +	PWRAP_DVFS_WDATA12,
>>> +	PWRAP_DVFS_ADR13,
>>> +	PWRAP_DVFS_WDATA13,
>>> +	PWRAP_DVFS_ADR14,
>>> +	PWRAP_DVFS_WDATA14,
>>> +	PWRAP_DVFS_ADR15,
>>> +	PWRAP_DVFS_WDATA15,
>>> +	PWRAP_EXT_CK,
>>> +	PWRAP_ADC_RDATA_ADDR,
>>> +	PWRAP_GPS_STA,
>>> +	PWRAP_SW_RST,
>>> +	PWRAP_DVFS_STEP_CTRL0,
>>> +	PWRAP_DVFS_STEP_CTRL1,
>>> +	PWRAP_DVFS_STEP_CTRL2,
>>> +	PWRAP_SPI2_CTRL,
>>> +
>>>    	/* MT8135 only regs */
>>>    	PWRAP_CSHEXT,
>>>    	PWRAP_EVENT_IN_EN,
>>> @@ -336,6 +366,118 @@ static int mt2701_regs[] = {
>>>    	[PWRAP_ADC_RDATA_ADDR2] =	0x154,
>>>    };
>>>    
>>> +static int mt7622_regs[] = {
>>> +	[PWRAP_MUX_SEL] =		0x0,
>>> +	[PWRAP_WRAP_EN] =		0x4,
>>> +	[PWRAP_DIO_EN] =		0x8,
>>> +	[PWRAP_SIDLY] =			0xC,
>>> +	[PWRAP_RDDMY] =			0x10,
>>> +	[PWRAP_SI_CK_CON] =		0x14,
>>> +	[PWRAP_CSHEXT_WRITE] =		0x18,
>>> +	[PWRAP_CSHEXT_READ] =		0x1C,
>>> +	[PWRAP_CSLEXT_START] =		0x20,
>>> +	[PWRAP_CSLEXT_END] =		0x24,
>>> +	[PWRAP_STAUPD_PRD] =		0x28,
>>> +	[PWRAP_STAUPD_GRPEN] =		0x2C,
>>> +	[PWRAP_EINT_STA0_ADR] =		0x30,
>>> +	[PWRAP_EINT_STA1_ADR] =		0x34,
>>> +	[PWRAP_STA] =			0x38,
>>> +	[PWRAP_CLR] =			0x3C,
>>> +	[PWRAP_STAUPD_MAN_TRIG] =	0x40,
>>> +	[PWRAP_STAUPD_STA] =		0x44,
>>> +	[PWRAP_WRAP_STA] =		0x48,
>>> +	[PWRAP_HARB_INIT] =		0x4C,
>>> +	[PWRAP_HARB_HPRIO] =		0x50,
>>> +	[PWRAP_HIPRIO_ARB_EN] =		0x54,
>>> +	[PWRAP_HARB_STA0] =		0x58,
>>> +	[PWRAP_HARB_STA1] =		0x5C,
>>> +	[PWRAP_MAN_EN] =		0x60,
>>> +	[PWRAP_MAN_CMD] =		0x64,
>>> +	[PWRAP_MAN_RDATA] =		0x68,
>>> +	[PWRAP_MAN_VLDCLR] =		0x6C,
>>> +	[PWRAP_WACS0_EN] =		0x70,
>>> +	[PWRAP_INIT_DONE0] =		0x74,
>>> +	[PWRAP_WACS0_CMD] =		0x78,
>>> +	[PWRAP_WACS0_RDATA] =		0x7C,
>>> +	[PWRAP_WACS0_VLDCLR] =		0x80,
>>> +	[PWRAP_WACS1_EN] =		0x84,
>>> +	[PWRAP_INIT_DONE1] =		0x88,
>>> +	[PWRAP_WACS1_CMD] =		0x8C,
>>> +	[PWRAP_WACS1_RDATA] =		0x90,
>>> +	[PWRAP_WACS1_VLDCLR] =		0x94,
>>> +	[PWRAP_WACS2_EN] =		0x98,
>>> +	[PWRAP_INIT_DONE2] =		0x9C,
>>> +	[PWRAP_WACS2_CMD] =		0xA0,
>>> +	[PWRAP_WACS2_RDATA] =		0xA4,
>>> +	[PWRAP_WACS2_VLDCLR] =		0xA8,
>>> +	[PWRAP_INT_EN] =		0xAC,
>>> +	[PWRAP_INT_FLG_RAW] =		0xB0,
>>> +	[PWRAP_INT_FLG] =		0xB4,
>>> +	[PWRAP_INT_CLR] =		0xB8,
>>> +	[PWRAP_SIG_ADR] =		0xBC,
>>> +	[PWRAP_SIG_MODE] =		0xC0,
>>> +	[PWRAP_SIG_VALUE] =		0xC4,
>>> +	[PWRAP_SIG_ERRVAL] =		0xC8,
>>> +	[PWRAP_CRC_EN] =		0xCC,
>>> +	[PWRAP_TIMER_EN] =		0xD0,
>>> +	[PWRAP_TIMER_STA] =		0xD4,
>>> +	[PWRAP_WDT_UNIT] =		0xD8,
>>> +	[PWRAP_WDT_SRC_EN] =		0xDC,
>>> +	[PWRAP_WDT_FLG] =		0xE0,
>>> +	[PWRAP_DEBUG_INT_SEL] =		0xE4,
>>> +	[PWRAP_DVFS_ADR0] =		0xE8,
>>> +	[PWRAP_DVFS_WDATA0] =		0xEC,
>>> +	[PWRAP_DVFS_ADR1] =		0xF0,
>>> +	[PWRAP_DVFS_WDATA1] =		0xF4,
>>> +	[PWRAP_DVFS_ADR2] =		0xF8,
>>> +	[PWRAP_DVFS_WDATA2] =		0xFC,
>>> +	[PWRAP_DVFS_ADR3] =		0x100,
>>> +	[PWRAP_DVFS_WDATA3] =		0x104,
>>> +	[PWRAP_DVFS_ADR4] =		0x108,
>>> +	[PWRAP_DVFS_WDATA4] =		0x10C,
>>> +	[PWRAP_DVFS_ADR5] =		0x110,
>>> +	[PWRAP_DVFS_WDATA5] =		0x114,
>>> +	[PWRAP_DVFS_ADR6] =		0x118,
>>> +	[PWRAP_DVFS_WDATA6] =		0x11C,
>>> +	[PWRAP_DVFS_ADR7] =		0x120,
>>> +	[PWRAP_DVFS_WDATA7] =		0x124,
>>> +	[PWRAP_DVFS_ADR8] =		0x128,
>>> +	[PWRAP_DVFS_WDATA8] =		0x12C,
>>> +	[PWRAP_DVFS_ADR9] =		0x130,
>>> +	[PWRAP_DVFS_WDATA9] =		0x134,
>>> +	[PWRAP_DVFS_ADR10] =		0x138,
>>> +	[PWRAP_DVFS_WDATA10] =		0x13C,
>>> +	[PWRAP_DVFS_ADR11] =		0x140,
>>> +	[PWRAP_DVFS_WDATA11] =		0x144,
>>> +	[PWRAP_DVFS_ADR12] =		0x148,
>>> +	[PWRAP_DVFS_WDATA12] =		0x14C,
>>> +	[PWRAP_DVFS_ADR13] =		0x150,
>>> +	[PWRAP_DVFS_WDATA13] =		0x154,
>>> +	[PWRAP_DVFS_ADR14] =		0x158,
>>> +	[PWRAP_DVFS_WDATA14] =		0x15C,
>>> +	[PWRAP_DVFS_ADR15] =		0x160,
>>> +	[PWRAP_DVFS_WDATA15] =		0x164,
>>> +	[PWRAP_SPMINF_STA] =		0x168,
>>> +	[PWRAP_CIPHER_KEY_SEL] =	0x16C,
>>> +	[PWRAP_CIPHER_IV_SEL] =		0x170,
>>> +	[PWRAP_CIPHER_EN] =		0x174,
>>> +	[PWRAP_CIPHER_RDY] =		0x178,
>>> +	[PWRAP_CIPHER_MODE] =		0x17C,
>>> +	[PWRAP_CIPHER_SWRST] =		0x180,
>>> +	[PWRAP_DCM_EN] =		0x184,
>>> +	[PWRAP_DCM_DBC_PRD] =		0x188,
>>> +	[PWRAP_EXT_CK] =		0x18C,
>>> +	[PWRAP_ADC_CMD_ADDR] =		0x190,
>>> +	[PWRAP_PWRAP_ADC_CMD] =		0x194,
>>> +	[PWRAP_ADC_RDATA_ADDR] =	0x198,
>>> +	[PWRAP_GPS_STA] =		0x19C,
>>> +	[PWRAP_SW_RST] =		0x1A0,
>>> +	[PWRAP_DVFS_STEP_CTRL0] =	0x238,
>>> +	[PWRAP_DVFS_STEP_CTRL1] =	0x23C,
>>> +	[PWRAP_DVFS_STEP_CTRL2] =	0x240,
>>> +	[PWRAP_SPI2_CTRL] =		0x244,
>>> +};
>>> +
>>>    static int mt8173_regs[] = {
>>>    	[PWRAP_MUX_SEL] =		0x0,
>>>    	[PWRAP_WRAP_EN] =		0x4,
>>> @@ -499,6 +641,7 @@ enum pmic_type {
>>>    
>>>    enum pwrap_type {
>>>    	PWRAP_MT2701,
>>> +	PWRAP_MT7622,
>>>    	PWRAP_MT8135,
>>>    	PWRAP_MT8173,
>>>    };
>>> @@ -873,6 +1016,16 @@ static int pwrap_mt2701_init_reg_clock(struct pmic_wrapper *wrp)
>>>    	return 0;
>>>    }
>>>    
>>> +static int pwrap_mt7622_init_reg_clock(struct pmic_wrapper *wrp)
>>> +{
>>> +	pwrap_writel(wrp, 0x0, PWRAP_CSHEXT_WRITE);
>>> +	pwrap_writel(wrp, 0x4, PWRAP_CSHEXT_READ);
>>> +	pwrap_writel(wrp, 0x2, PWRAP_CSLEXT_START);
>>> +	pwrap_writel(wrp, 0x2, PWRAP_CSLEXT_END);
>>> +
>>
>> This is the same function as pwrap_mt8173_init_reg_clock. Can we somehow group
>> them together to get rid of the code duplication?
>>
> 
> It's okay for Chenglin and me. I'll reuse the function call.
> 
> Except for the thing and dropping 7/7 patch, do you have any
> remaining suggestions to enhance the patch set ? I can make
> them altogether in the next version.
> 

Apart from the comments, the patches look good to me.
Let's see if we can queue them for v4.15 :)

Regards,
Matthias