linux-kernel - Re: [PATCH 5/5] hisi: Consolidate the Kconfigs for the CLOCK

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Date:   Wed, 9 May 2018 09:19:13 +0530
From:   Jassi Brar <jassisinghbrar@...il.com>
To:     Leo Yan <leo.yan@...aro.org>
Cc:     Wei Xu <xuwei5@...ilicon.com>, Arnd Bergmann <arnd@...db.de>,
        Stephen Boyd <sboyd@...nel.org>,
        Kaihua Zhong <zhongkaihua@...wei.com>,
        Tao Wang <kevin.wangtao@...ilicon.com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        ", linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, srv_heupstream" 
        <linux-arm-kernel@...ts.infradead.org>,
        Devicetree List <devicetree@...r.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Guodong Xu <guodong.xu@...aro.org>,
        Haojian Zhuang <haojian.zhuang@...aro.org>
Subject: Re: [PATCH 5/5] hisi: Consolidate the Kconfigs for the CLOCK_STUB and
 the MAILBOX

On Wed, Apr 4, 2018 at 8:44 AM, Leo Yan <leo.yan@...aro.org> wrote:
> From: Daniel Lezcano <daniel.lezcano@...aro.org>
>
> The current defconfig is inconsistent as it selects the mailbox and
> the clock for the hi6220 and the hi3660 without having their Kconfigs
> making sure the dependencies are correct. It ends up when selecting
> different versions for the kernel (for example when git bisecting)
> those options disappear and they don't get back, leading to unexpected
> behaviors. In our case, the cpufreq driver does no longer work because
> the clock fails to initialize due to the clock stub and the mailbox
> missing.
>
> In order to have the dependencies correctly set when defaulting, let's
> do the same as commit 3a49afb84ca074e ("clk: enable hi655x common clk
> automatically") where we select automatically the driver when the
> parent driver is selected. With sensible defaults in place, we can leave
> other choices for EXPERT.
>
Acked-by: Jassi Brar <jaswinder.singh@...aro.org>