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From: Kathiravan Thirumoorthy <quic_kathirav@quicinc.com>
To: Konrad Dybcio <konrad.dybcio@linaro.org>,
	Robert Marko <robimarko@gmail.com>, <agross@kernel.org>,
	<andersson@kernel.org>, <mturquette@baylibre.com>,
	<sboyd@kernel.org>, <linux-arm-msm@vger.kernel.org>,
	<linux-clk@vger.kernel.org>, <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] clk: qcom: gcc-ipq6018: add QUP6 I2C clock
Date: Thu, 19 Oct 2023 12:16:09 +0530	[thread overview]
Message-ID: <8dce62b2-562c-4e00-840b-68e1cc865972@quicinc.com> (raw)
In-Reply-To: <f27ff251-58b1-4fc5-8ad5-cd365b7eb976@linaro.org>


On 10/19/2023 1:59 AM, Konrad Dybcio wrote:
>
>
> On 10/15/23 18:20, Robert Marko wrote:
>> QUP6 I2C clock is listed in the dt bindings but it was never included in
>> the GCC driver.
>> So lets add support for it, its intentionally marked to never be 
>> disabled
>> as its somehow affecting DVFS and if disabled it sometimes crashes the
>> board.
>>
>> Signed-off-by: Robert Marko <robimarko@gmail.com>
>> ---
> Bjorn, would you be able to get an idea of what could be sitting
> on that bus?
>
> Or maybe the IPQ folks could know?
>

Konrad / Robert,

Similar to IPQ9574, RPM needs this clock to communicate with PMIC over 
I2C interface. Discussion happened here[1] is pretty much applicable to 
IPQ6018 as well. Based on previous experience, we may need to document 
the reason for CLK_IGNORE_UNUSED in driver as well. Nevertheless,

Reviewed-by: Kathiravan Thirumoorthy <quic_kathirav@quicinc.com>

[1] 
https://lore.kernel.org/linux-arm-msm/2852fc37-284f-6534-f163-45b37b153db1@quicinc.com/


> Konrad

  reply	other threads:[~2023-10-19  6:47 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-10-15 16:20 Robert Marko
2023-10-18 20:29 ` Konrad Dybcio
2023-10-19  6:46   ` Kathiravan Thirumoorthy [this message]
2023-10-19 14:23     ` Robert Marko
2023-10-20  6:40       ` Kathiravan Thirumoorthy
2023-10-21 11:57         ` Robert Marko
2023-10-25  8:41           ` Kathiravan Thirumoorthy
2023-10-25 10:42             ` Robert Marko

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