From: khilman@kernel.org (Kevin Hilman)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 4/5] clk: Hi6220: add stub clock driver
Date: Tue, 1 Sep 2015 17:28:03 -0700 [thread overview]
Message-ID: <CAMAWPa8dNOipiFFv96J5XvP1Qs7ysHBD6_-RpMGqCEdPAKxHAA@mail.gmail.com> (raw)
In-Reply-To: <1438564418-15948-5-git-send-email-leo.yan@linaro.org>
On Sun, Aug 2, 2015 at 6:13 PM, Leo Yan <leo.yan@linaro.org> wrote:
> On Hi6220, there have some clocks which can use mailbox channel to send
> messages to power controller to change frequency; this includes CPU, GPU
> and DDR clocks.
>
> For dynamic frequency scaling, firstly need write the frequency value to
> SRAM region, and then send message to mailbox to trigger power controller
> to handle this requirement. This driver will use syscon APIs to pass SRAM
> memory region and use common mailbox APIs for channels accessing.
>
> This init driver will support cpu frequency change firstly.
>
> Signed-off-by: Leo Yan <leo.yan@linaro.org>
The kernelci.org build/boot bot detected boot failures in
linux-next[1], and the failure was bisected down to this patch (landed
in linux-next as commit c1628a2c416da947f5afac615d53189250fa49cb.
I verifed that reverting this commit on top of next-20150901 gets the
hikey booting again.
Kevin
[1] http://kernelci.org/boot/hi6220-hikey/
next prev parent reply other threads:[~2015-09-02 0:28 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-03 1:13 [PATCH v3 0/5] clk: hisilicon: support stub clock Leo Yan
2015-08-03 1:13 ` [PATCH v3 1/5] clk: hisi: refine parameter checking for init Leo Yan
2015-08-03 21:46 ` Stephen Boyd
2015-08-03 1:13 ` [PATCH v3 2/5] dt-bindings: arm: Hi6220: add doc for SRAM controller Leo Yan
2015-08-03 1:13 ` [PATCH v3 3/5] dt-bindings: clk: Hi6220: Document stub clock driver Leo Yan
2015-08-03 1:13 ` [PATCH v3 4/5] clk: Hi6220: add " Leo Yan
2015-08-03 21:37 ` Stephen Boyd
2015-08-04 6:27 ` Leo Yan
2015-09-02 0:28 ` Kevin Hilman [this message]
2015-09-02 1:52 ` Leo Yan
2015-08-03 1:13 ` [PATCH v3 5/5] arm64: dts: add Hi6220's stub clock node Leo Yan
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