linux-kernel - Re: [PATCH v2 8/8] arm64: defconfig: Enable TI eQEP Driver

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Date: Thu, 30 May 2024 10:31:20 -0500
From: Judith Mendez <jm@...com>
To: Nishanth Menon <nm@...com>, <devicetree@...r.kernel.org>
CC: Rob Herring <robh@...nel.org>,
        Krzysztof Kozlowski
	<krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Catalin Marinas <catalin.marinas@....com>,
        Will Deacon <will@...nel.org>,
        William Breathitt Gray <william.gray@...aro.org>,
        David Lechner
	<david@...hnology.com>,
        <linux-arm-kernel@...ts.infradead.org>, <linux-kernel@...r.kernel.org>,
        <linux-iio@...r.kernel.org>, Vignesh
 Raghavendra <vigneshr@...com>
Subject: Re: [PATCH v2 8/8] arm64: defconfig: Enable TI eQEP Driver

Hi Nishanth,

On 5/24/24 9:13 AM, Judith Mendez wrote:
> Hi Nishanth,
> 
> On 5/24/24 12:59 AM, Nishanth Menon wrote:
>> On 18:15-20240523, Judith Mendez wrote:
>>> TI K3 SoC's support eQEP hardware, so enable TI eQEP driver
>>> to be built as a module.
>>
>> All the nodes seem to be only in disabled mode, is there even a single
>> board that is actually using this? if so, why isn't it enabled?
> 
> I will add pinmux and enable in the board level dts file.

Question about the above... If I enable eQEP at the board level,
there will be pinmux conflicts. So, I could:
1. Leave eQEP disabled
2. Enable eQEP and disable main_uart1 at the board level dts file
3. Enable eQEP in an overlay and also disable main_uart1

Let me know which option works for you.

~ Judith

> 
>>
>>>
>>> Signed-off-by: Judith Mendez <jm@...com>
>>> ---
>>> Changes since v1:
>>> - No change
>>> ---
>>>   arch/arm64/configs/defconfig | 1 +
>>>   1 file changed, 1 insertion(+)
>>>
>>> diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig
>>> index 2c30d617e1802..23d11a1b20195 100644
>>> --- a/arch/arm64/configs/defconfig
>>> +++ b/arch/arm64/configs/defconfig
>>> @@ -1593,6 +1593,7 @@ CONFIG_INTERCONNECT_QCOM_SM8550=y
>>>   CONFIG_INTERCONNECT_QCOM_SM8650=y
>>>   CONFIG_INTERCONNECT_QCOM_X1E80100=y
>>>   CONFIG_COUNTER=m
>>> +CONFIG_TI_EQEP=m
>>>   CONFIG_RZ_MTU3_CNT=m
>>>   CONFIG_HTE=y
>>>   CONFIG_HTE_TEGRA194=y
>>> -- 
>>> 2.45.1
>>>
>>
> 
>