linux-kernel - Re: [PATCH v2 3/6] phy: qcom-qusb2: Add QUSB2 PHY support for msm8998

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Message-ID: <c6b1887e-139a-6b3b-3f9e-d0842fbe8eeb@codeaurora.org>
Date:   Wed, 16 Jan 2019 08:28:27 -0700
From:   Jeffrey Hugo <jhugo@...eaurora.org>
To:     Kishon Vijay Abraham I <kishon@...com>,
        Bjorn Andersson <bjorn.andersson@...aro.org>
Cc:     andy.gross@...aro.org, david.brown@...aro.org,
        linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
        robh+dt@...nel.org, mark.rutland@....com,
        devicetree@...r.kernel.org, gregkh@...uxfoundation.org,
        balbi@...nel.org, linux-usb@...r.kernel.org
Subject: Re: [PATCH v2 3/6] phy: qcom-qusb2: Add QUSB2 PHY support for msm8998

On 1/16/2019 1:58 AM, Kishon Vijay Abraham I wrote:
> Hi,
> 
> On 16/01/19 2:20 PM, Kishon Vijay Abraham I wrote:
>>
>>
>> On 15/01/19 11:41 PM, Bjorn Andersson wrote:
>>> On Mon 14 Jan 08:36 PST 2019, Jeffrey Hugo wrote:
>>>
>>>> MSM8998 contains one QUSB2 PHY which is very similar to the existing
>>>> sdm845 support.
>>>>
>>>
>> I don't seem to have the dt-binding patch in my inbox. Can you send them as well?
> 
> Ignore my request. I found the patch.

Sorry about that.  I was made aware there is something glitched when 
sending this out, and the series didn't get threaded properly.  I'll be 
investigating and correcting for the next time I need to send out a series.

Is this change acceptable?  I saw you picked up patch 1 (phy bindings) 
and patch 4 (QMP phy changes), but not this one.  I do want to see as 
much of this hit 5.1 as possible, so if there is anything I need to 
correct, please let me know.  I'd be happy to update.

> 
> Thanks
> Kishon
> 
>>
>> Thanks
>> Kishon
>>> Reviewed-by: Bjorn Andersson <bjorn.andersson@...aro.org>
>>>
>>>> Signed-off-by: Jeffrey Hugo <jhugo@...eaurora.org>
>>>> ---
>>>>   drivers/phy/qualcomm/phy-qcom-qusb2.c | 41 +++++++++++++++++++++++++++++++++++
>>>>   1 file changed, 41 insertions(+)
>>>>
>>>> diff --git a/drivers/phy/qualcomm/phy-qcom-qusb2.c b/drivers/phy/qualcomm/phy-qcom-qusb2.c
>>>> index 9177989f..e5e4f36 100644
>>>> --- a/drivers/phy/qualcomm/phy-qcom-qusb2.c
>>>> +++ b/drivers/phy/qualcomm/phy-qcom-qusb2.c
>>>> @@ -152,6 +152,32 @@ enum qusb2phy_reg_layout {
>>>>   	QUSB2_PHY_INIT_CFG(QUSB2PHY_PLL_PWR_CTRL, 0x00),
>>>>   };
>>>>   
>>>> +static const unsigned int msm8998_regs_layout[] = {
>>>> +	[QUSB2PHY_PLL_CORE_INPUT_OVERRIDE] = 0xa8,
>>>> +	[QUSB2PHY_PLL_STATUS]              = 0x1a0,
>>>> +	[QUSB2PHY_PORT_TUNE1]              = 0x23c,
>>>> +	[QUSB2PHY_PORT_TUNE2]              = 0x240,
>>>> +	[QUSB2PHY_PORT_TUNE3]              = 0x244,
>>>> +	[QUSB2PHY_PORT_TUNE4]              = 0x248,
>>>> +	[QUSB2PHY_PORT_TEST1]              = 0x24c,
>>>> +	[QUSB2PHY_PORT_TEST2]              = 0x250,
>>>> +	[QUSB2PHY_PORT_POWERDOWN]          = 0x210,
>>>> +	[QUSB2PHY_INTR_CTRL]               = 0x22c,
>>>> +};
>>>> +
>>>> +static const struct qusb2_phy_init_tbl msm8998_init_tbl[] = {
>>>> +	QUSB2_PHY_INIT_CFG(QUSB2PHY_PLL_ANALOG_CONTROLS_TWO, 0x13),
>>>> +	QUSB2_PHY_INIT_CFG(QUSB2PHY_PLL_CLOCK_INVERTERS, 0x7c),
>>>> +	QUSB2_PHY_INIT_CFG(QUSB2PHY_PLL_CMODE, 0x80),
>>>> +	QUSB2_PHY_INIT_CFG(QUSB2PHY_PLL_LOCK_DELAY, 0x0a),
>>>> +
>>>> +	QUSB2_PHY_INIT_CFG_L(QUSB2PHY_PORT_TUNE1, 0xa5),
>>>> +	QUSB2_PHY_INIT_CFG_L(QUSB2PHY_PORT_TUNE2, 0x09),
>>>> +
>>>> +	QUSB2_PHY_INIT_CFG(QUSB2PHY_PLL_DIGITAL_TIMERS_TWO, 0x19),
>>>> +};
>>>> +
>>>> +
>>>>   static const unsigned int sdm845_regs_layout[] = {
>>>>   	[QUSB2PHY_PLL_CORE_INPUT_OVERRIDE] = 0xa8,
>>>>   	[QUSB2PHY_PLL_STATUS]		= 0x1a0,
>>>> @@ -221,6 +247,18 @@ struct qusb2_phy_cfg {
>>>>   	.autoresume_en	 = BIT(3),
>>>>   };
>>>>   
>>>> +static const struct qusb2_phy_cfg msm8998_phy_cfg = {
>>>> +	.tbl            = msm8998_init_tbl,
>>>> +	.tbl_num        = ARRAY_SIZE(msm8998_init_tbl),
>>>> +	.regs           = msm8998_regs_layout,
>>>> +
>>>> +	.disable_ctrl   = POWER_DOWN,
>>>> +	.mask_core_ready = CORE_READY_STATUS,
>>>> +	.has_pll_override = true,
>>>> +	.autoresume_en   = BIT(0),
>>>> +	.update_tune1_with_efuse = true,
>>>> +};
>>>> +
>>>>   static const struct qusb2_phy_cfg sdm845_phy_cfg = {
>>>>   	.tbl		= sdm845_init_tbl,
>>>>   	.tbl_num	= ARRAY_SIZE(sdm845_init_tbl),
>>>> @@ -734,6 +772,9 @@ static int qusb2_phy_exit(struct phy *phy)
>>>>   		.compatible	= "qcom,msm8996-qusb2-phy",
>>>>   		.data		= &msm8996_phy_cfg,
>>>>   	}, {
>>>> +		.compatible	= "qcom,msm8998-qusb2-phy",
>>>> +		.data		= &msm8998_phy_cfg,
>>>> +	}, {
>>>>   		.compatible	= "qcom,sdm845-qusb2-phy",
>>>>   		.data		= &sdm845_phy_cfg,
>>>>   	},
>>>> -- 
>>>> Qualcomm Datacenter Technologies as an affiliate of Qualcomm Technologies, Inc.
>>>> Qualcomm Technologies, Inc. is a member of the
>>>> Code Aurora Forum, a Linux Foundation Collaborative Project.
>>>>


-- 
Jeffrey Hugo
Qualcomm Datacenter Technologies as an affiliate of Qualcomm 
Technologies, Inc.
Qualcomm Technologies, Inc. is a member of the
Code Aurora Forum, a Linux Foundation Collaborative Project.