From: Stephen Boyd <sboyd@codeaurora.org>
To: Rajendra Nayak <rnayak@codeaurora.org>
Cc: mturquette@baylibre.com, linux-kernel@vger.kernel.org,
linux-clk@vger.kernel.org, linux-arm-msm@vger.kernel.org
Subject: Re: [PATCH v2 2/6] clk: qcom: gdsc: Add support for gdscs with gds hw controller
Date: Thu, 11 Feb 2016 16:31:11 -0800 [thread overview]
Message-ID: <20160212003111.GN30978@codeaurora.org> (raw)
In-Reply-To: <1448986336-16846-3-git-send-email-rnayak@codeaurora.org>
On 12/01, Rajendra Nayak wrote:
> Some gdsc power domains can have a gds_hw_controller block inside
> to help ensure all slave devices within the power domain are idle
> before the gdsc is actually switched off.
> This is mainly useful in power domains which host a MMU, in which
> case its necessary to make sure there are no outstanding MMU operations
> or pending bus transactions before the power domain is turned off.
>
> In gdscs with gds_hw_controller block, its necessary to check the
> gds_hw_ctrl status bits instead of the ones in gdscr, to determine
> the state of the powerdomain.
>
> While at it, also move away from using jiffies and use ktime APIs
> instead for busy looping on status bits.
>
> Signed-off-by: Rajendra Nayak <rnayak@codeaurora.org>
> ---
Applied to clk-next
--
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project
next prev parent reply other threads:[~2016-02-12 0:31 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-01 16:12 [PATCH v2 0/6] Add support for MSM8996 GDSCs Rajendra Nayak
2015-12-01 16:12 ` [PATCH v2 1/6] clk: qcom: gdsc: Add support for hierarchical power domains Rajendra Nayak
2016-02-12 0:31 ` Stephen Boyd
2015-12-01 16:12 ` [PATCH v2 2/6] clk: qcom: gdsc: Add support for gdscs with gds hw controller Rajendra Nayak
2016-02-12 0:31 ` Stephen Boyd [this message]
2015-12-01 16:12 ` [PATCH v2 3/6] clk: qcom: gdsc: Add support for votable gdscs Rajendra Nayak
2016-02-12 0:31 ` Stephen Boyd
2015-12-01 16:12 ` [PATCH v2 4/6] clk: qcom: gdsc: Add GDSCs in msm8996 GCC Rajendra Nayak
2016-02-12 0:31 ` Stephen Boyd
2016-02-12 0:33 ` Stephen Boyd
2015-12-01 16:12 ` [PATCH v2 5/6] clk: qcom: gdsc: Add mmcc gdscs for msm8996 family Rajendra Nayak
2016-02-12 0:32 ` Stephen Boyd
2015-12-01 16:12 ` [PATCH v2 6/6] clk: qcom: mmcc8974: Use gdscs .parent and remove genpd calls Rajendra Nayak
2016-02-12 0:33 ` Stephen Boyd
2016-02-15 2:43 ` Rajendra Nayak
2016-01-18 4:27 ` [PATCH v2 0/6] Add support for MSM8996 GDSCs Rajendra Nayak
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