From: Vivek Gautam <vivek.gautam@codeaurora.org>
To: Stephen Boyd <sboyd@codeaurora.org>
Cc: "robh+dt" <robh+dt@kernel.org>, kishon <kishon@ti.com>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Srinivas Kandagatla <srinivas.kandagatla@linaro.org>,
linux-arm-msm@vger.kernel.org
Subject: Re: [PATCH v3 3/4] dt-bindings: phy: Add support for QMP phy
Date: Thu, 29 Dec 2016 10:35:11 +0530 [thread overview]
Message-ID: <CAFp+6iFUirvZKxJEko+wrmyrowQS7ECqABfgNom=LRb3rkwRcQ@mail.gmail.com> (raw)
In-Reply-To: <20161228230412.GC17126@codeaurora.org>
On Thu, Dec 29, 2016 at 4:34 AM, Stephen Boyd <sboyd@codeaurora.org> wrote:
> On 12/20, Vivek Gautam wrote:
>> +
>> +Example:
>> + pcie_phy: phy@34000 {
>> + compatible = "qcom,msm8996-qmp-pcie-phy";
>> + reg = <0x034000 0x48f>,
>> + <0x035000 0x5bf>,
>> + <0x036000 0x5bf>,
>> + <0x037000 0x5bf>;
>> + /* tx, rx, pcs */
>> + lane-offsets = <0x0 0x200 0x400>;
>> + #phy-cells = <1>;
>> +
>> + clocks = <&gcc GCC_PCIE_PHY_AUX_CLK>,
>> + <&gcc GCC_PCIE_PHY_CFG_AHB_CLK>,
>> + <&gcc GCC_PCIE_CLKREF_CLK>,
>> + <&gcc GCC_PCIE_0_PIPE_CLK>,
>> + <&gcc GCC_PCIE_1_PIPE_CLK>,
>> + <&gcc GCC_PCIE_2_PIPE_CLK>;
>> + clock-names = "aux", "cfg_ahb", "ref",
>> + "pipe0", "pipe1", "pipe2";
>
> Can we add a #clock-cells = <0> or <1> here given that this is a
> clk provider? We may want to express the clk circular dependency
> between this phy node and GCC via the clocks property at some
> point instead of doing it implicitly via strings in C code.
Sure, will add #clock-cells = <1>.
Although phys like USB and PIPE currently have just the pipe_clk
being controlled by gcc, the UFS phy has tx/rx symbol clocks that
are controlled by gcc but are generated by phy the same way as
pipe_clk.
So, i guess #clock-cells = <1 > makes sense.
Thanks
Vivek
--
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project
next prev parent reply other threads:[~2016-12-29 5:05 UTC|newest]
Thread overview: 22+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-12-20 17:03 [PATCH v3 0/4] phy: USB and PCIe phy drivers for Qcom chipsets Vivek Gautam
2016-12-20 17:03 ` [PATCH v3 1/4] dt-bindings: phy: Add support for QUSB2 phy Vivek Gautam
2016-12-22 21:16 ` Rob Herring
2016-12-23 4:52 ` Vivek Gautam
2016-12-28 1:13 ` Stephen Boyd
2016-12-28 5:40 ` Vivek Gautam
2016-12-20 17:03 ` [PATCH v3 2/4] phy: qcom-qusb2: New driver for QUSB2 PHY on Qcom chips Vivek Gautam
2016-12-28 23:01 ` Stephen Boyd
2016-12-29 6:57 ` Vivek Gautam
2016-12-29 7:00 ` Vivek Gautam
2016-12-20 17:03 ` [PATCH v3 3/4] dt-bindings: phy: Add support for QMP phy Vivek Gautam
2016-12-28 23:04 ` Stephen Boyd
2016-12-29 5:05 ` Vivek Gautam [this message]
2016-12-20 17:03 ` [PATCH v3 4/4] phy: qcom-qmp: new qmp phy driver for qcom-chipsets Vivek Gautam
2016-12-28 23:16 ` Stephen Boyd
2016-12-29 7:39 ` Vivek Gautam
2017-01-03 19:24 ` Bjorn Andersson
2017-01-05 9:13 ` Vivek Gautam
2017-01-06 7:18 ` Bjorn Andersson
2017-01-06 9:47 ` Vivek Gautam
2017-01-06 21:17 ` Bjorn Andersson
2017-01-07 18:41 ` vivek.gautam
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