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From: Stephen Boyd <sboyd@kernel.org>
To: Michael Turquette <mturquette@baylibre.com>,
	Taniya Das <tdas@codeaurora.org>,
	robh+dt@kernel.org
Cc: David Brown <david.brown@linaro.org>,
	Rajendra Nayak <rnayak@codeaurora.org>,
	linux-arm-msm@vger.kernel.org, linux-soc@vger.kernel.org,
	linux-clk@vger.kernel.org, linux-kernel@vger.kernel.org,
	devicetree@vger.kernel.org
Subject: Re: [PATCH v3 3/3] clk: qcom: Add Global Clock controller (GCC) driver for SC7180
Date: Fri, 04 Oct 2019 16:20:21 -0700	[thread overview]
Message-ID: <20191004232022.062A1215EA@mail.kernel.org> (raw)
In-Reply-To: <81a2fa46-a7e6-66a2-9649-009f22813c81@codeaurora.org>

Quoting Taniya Das (2019-10-04 10:39:31)
> Hi Stephen,
> 
> On 10/3/2019 9:31 PM, Stephen Boyd wrote:
> > Quoting Taniya Das (2019-10-03 03:31:15)
> >> Hi Stephen,
> >>
> >> On 10/1/2019 8:08 PM, Stephen Boyd wrote:
> >>>
> >>> Why do you want to keep them critical and registered? I'm suggesting
> >>> that any clk that is marked critical and doesn't have a parent should
> >>> instead become a register write in probe to turn the clk on.
> >>>
> >> Sure, let me do a one-time enable from probe for the clocks which
> >> doesn't have a parent.
> >> But I would now have to educate the clients of these clocks to remove
> >> using them.
> >>
> > 
> > If anyone is using these clks we can return NULL from the provider for
> > the specifier so that we indicate there isn't support for them in the
> > kernel. At least I hope that code path still works given all the recent
> > changes to clk_get().
> > 
> 
> Could you please confirm if you are referring to update the below?

I wasn't suggesting that explicitly but sure. Something like this would
be necessary to make clk_get() pass back a NULL pointer to the caller.
Does everything keep working with this change?


  reply	other threads:[~2019-10-04 23:20 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-18  9:50 [PATCH v3 0/3] Add Global Clock controller (GCC) driver for SC7180 Taniya Das
2019-09-18  9:50 ` [PATCH v3 1/3] clk: qcom: rcg: update the DFS macro for RCG Taniya Das
2019-09-18  9:50 ` [PATCH v3 2/3] dt-bindings: clk: qcom: Add YAML schemas for the GCC clock bindings Taniya Das
2019-09-18 17:52   ` Matthias Kaehlcke
2019-09-23  6:33     ` Taniya Das
2019-09-27 17:27   ` Rob Herring
2019-10-14 10:16     ` Taniya Das
     [not found]   ` <20190918212614.448FC20882@mail.kernel.org>
2019-10-14 10:17     ` Taniya Das
2019-09-18  9:50 ` [PATCH v3 3/3] clk: qcom: Add Global Clock controller (GCC) driver for SC7180 Taniya Das
2019-09-19 11:08   ` Rajendra Nayak
2019-09-20  4:00     ` Taniya Das
2019-09-20  4:44       ` Rajendra Nayak
     [not found]   ` <20190918213946.DC03521924@mail.kernel.org>
2019-09-23  8:01     ` Taniya Das
2019-09-24 23:12       ` Stephen Boyd
2019-09-25 11:20         ` Taniya Das
2019-09-25 13:03           ` Stephen Boyd
2019-09-27  7:37             ` Taniya Das
2019-10-01 14:38               ` Stephen Boyd
2019-10-03 10:31                 ` Taniya Das
2019-10-03 16:01                   ` Stephen Boyd
2019-10-04 17:39                     ` Taniya Das
2019-10-04 23:20                       ` Stephen Boyd [this message]
2019-10-09  9:19                         ` Taniya Das
2019-10-10  4:16                           ` Stephen Boyd
2019-10-11 10:28                             ` Taniya Das

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