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From: Taniya Das <tdas@codeaurora.org>
To: Stephen Boyd <sboyd@kernel.org>, Jeffrey Hugo <jeffrey.l.hugo@gmail.com>
Cc: Michael Turquette <mturquette@baylibre.com>,
	David Brown <david.brown@linaro.org>,
	Rajendra Nayak <rnayak@codeaurora.org>,
	MSM <linux-arm-msm@vger.kernel.org>,
	linux-soc@vger.kernel.org, linux-clk@vger.kernel.org,
	lkml <linux-kernel@vger.kernel.org>,
	DTML <devicetree@vger.kernel.org>, Rob Herring <robh@kernel.org>,
	Rob Herring <robh+dt@kernel.org>
Subject: Re: [PATCH v2 3/8] dt-bindings: clock: Add YAML schemas for the QCOM GPUCC clock bindings
Date: Fri, 27 Dec 2019 12:13:15 +0530	[thread overview]
Message-ID: <1acbd025-d4f4-02b3-2c61-8672405894cc@codeaurora.org> (raw)
In-Reply-To: <20191219053244.88D3A222C2@mail.kernel.org>

Hello Stephen,

On 12/19/2019 11:02 AM, Stephen Boyd wrote:
> Quoting Taniya Das (2019-11-26 20:06:49)
>>
>>
>> On 11/26/2019 11:41 PM, Stephen Boyd wrote:
>>> Quoting Jeffrey Hugo (2019-11-15 07:11:01)
>>>> On Fri, Nov 15, 2019 at 3:07 AM Taniya Das <tdas@codeaurora.org> wrote:
>>>>> diff --git a/Documentation/devicetree/bindings/clock/qcom,gpucc.yaml b/Documentation/devicetree/bindings/clock/qcom,gpucc.yaml
>>>>> new file mode 100644
>>>>> index 0000000..c2d6243
>>>>> --- /dev/null
>>>>> +++ b/Documentation/devicetree/bindings/clock/qcom,gpucc.yaml
>>>>> +      - description: GPLL0 source from GCC
>>>>
>>>> This is not an accurate conversion.  GPLL0 was not valid for 845, and
>>>> is required for 8998.
>>>
>>> Thanks for checking Jeff.
>>>
>>> It looks like on 845 there are two gpll0 clocks going to gpucc. From
>>> gpu_cc_parent_map_0:
>>>
>>>        "gcc_gpu_gpll0_clk_src",
>>>        "gcc_gpu_gpll0_div_clk_src",
>>>
>>
>> There are branches of GPLL0 which would be connected to most external
>> CCs. It is upto to the external CCs to either use them to source a
>> frequency or not.
> 
> Yes, they can decide to use them or not, but they really do go to the
> CCs so the DT should describe that.
> 

Documentation is updated with both the GPLL0 branches now.

-- 
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation.

--

  reply	other threads:[~2019-12-27  6:43 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-11-15 10:04 [PATCH v2 0/8] Add GPU & Video Clock controller driver for SC7180 Taniya Das
2019-11-15 10:04 ` [PATCH v2 1/8] clk: qcom: alpha-pll: Remove useless read from set rate Taniya Das
2019-12-24  6:37   ` Stephen Boyd
2019-11-15 10:04 ` [PATCH v2 2/8] clk: qcom: clk-alpha-pll: Add support for Fabia PLL calibration Taniya Das
2019-12-24  6:37   ` Stephen Boyd
2019-11-15 10:04 ` [PATCH v2 3/8] dt-bindings: clock: Add YAML schemas for the QCOM GPUCC clock bindings Taniya Das
2019-11-15 15:11   ` Jeffrey Hugo
2019-11-26 18:11     ` Stephen Boyd
2019-11-27  4:06       ` Taniya Das
2019-12-19  5:32         ` Stephen Boyd
2019-12-27  6:43           ` Taniya Das [this message]
2019-11-15 10:05 ` [PATCH v2 4/8] dt-bindings: clock: Introduce QCOM Graphics " Taniya Das
2019-11-15 10:05 ` [PATCH v2 5/8] clk: qcom: Add graphics clock controller driver for SC7180 Taniya Das
2019-11-15 10:05 ` [PATCH v2 6/8] dt-bindings: clock: Add YAML schemas for the QCOM VIDEOCC clock bindings Taniya Das
2019-11-15 10:05 ` [PATCH v2 7/8] dt-bindings: clock: Introduce QCOM Video " Taniya Das
2019-12-03 17:22   ` Rob Herring
2019-11-15 10:05 ` [PATCH v2 8/8] clk: qcom: Add video clock controller driver for SC7180 Taniya Das
2019-12-24  2:30   ` Stephen Boyd
2019-12-27  6:41     ` Taniya Das
2019-12-24  2:32 ` [PATCH v2 0/8] Add GPU & Video Clock " Stephen Boyd
2019-12-27  6:44   ` Taniya Das
  -- strict thread matches above, loose matches on Subject: below --
2019-11-15  9:56 Taniya Das
2019-11-15  9:56 ` [PATCH v2 3/8] dt-bindings: clock: Add YAML schemas for the QCOM GPUCC clock bindings Taniya Das

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