linux-kernel - Re: [PATCH v4 13/16] PM / devfreq: tegra: Support Tegra30

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Message-ID: <7561edbc-c17c-101a-b339-fc7f9968a470@gmail.com>
Date:   Mon, 24 Jun 2019 14:24:16 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     myungjoo.ham@...sung.com
Cc:     Chanwoo Choi <cw00.choi@...sung.com>,
        "linux-pm@...r.kernel.org" <linux-pm@...r.kernel.org>,
        "linux-tegra@...r.kernel.org" <linux-tegra@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "jonathanh@...dia.com" <jonathanh@...dia.com>,
        "thierry.reding@...il.com" <thierry.reding@...il.com>
Subject: Re: [PATCH v4 13/16] PM / devfreq: tegra: Support Tegra30

24.06.2019 14:11, MyungJoo Ham пишет:
>>
>> --------- Original Message ---------
>> Sender : Dmitry Osipenko <digetx@...il.com>
>>
>> 24.06.2019 10:34, MyungJoo Ham пишет:
>>>>
>>>> A question:
>>>>
>>>> Does this driver support Tegra20 as well?
>>>> I'm asking this because ARCH_TEGRA includes ARCH_TEGRA_2x_SOC
>>>> according to /drivers/soc/tegra/Kconfig.
>>>>
>>>
>>> For this matter, how about updating your 13/16 patch as follows?
>>>
> []
>>
>> Good call! I'll update this patch following yours suggestion, thanks.
> 
> Or, you may approve the modified commits here:
> https://git.kernel.org/pub/scm/linux/kernel/git/mzx/devfreq.git/log/?h=for-next

Looks almost good to me!

I just recalled that there is also a 64bit variant of Tegra124, the Tegra132. Hence
the Tegra30+ Kconfig entry should look like this (it's also worthy to break the lines
for readability):

diff --git a/drivers/devfreq/Kconfig b/drivers/devfreq/Kconfig
index ccb1a68c4b51..bd2efbc27725 100644
--- a/drivers/devfreq/Kconfig
+++ b/drivers/devfreq/Kconfig
@@ -94,7 +94,10 @@ config ARM_EXYNOS_BUS_DEVFREQ

 config ARM_TEGRA_DEVFREQ
        tristate "NVIDIA Tegra30/114/124/210 DEVFREQ Driver"
-       depends on ARCH_TEGRA || COMPILE_TEST
+       depends on ARCH_TEGRA_3x_SOC  || ARCH_TEGRA_114_SOC || \
+                  ARCH_TEGRA_132_SOC || ARCH_TEGRA_124_SOC || \
+                  ARCH_TEGRA_210_SOC || \
+                  COMPILE_TEST
        select PM_OPP
        help
          This adds the DEVFREQ driver for the Tegra family of SoCs.

Could you please adjust the patches like I'm suggesting? I'll approve yours change
then and won't re-spin the first batch of the patches.