Re: [PATCH] clk: qcom: gcc-ipq6018: add QUP6 I2C clock

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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@xxxxxxxxx>
---
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@xxxxxxxxxxx>

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


Konrad



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