From: Rajendra Nayak <rnayak@codeaurora.org>
To: Stephen Boyd <sboyd@codeaurora.org>
Cc: andy.gross@linaro.org, linux-kernel@vger.kernel.org,
linux-arm-msm@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, devicetree@vger.kernel.org
Subject: Re: [PATCH 2/2] arm64: dts: sdm845: Add serial console support
Date: Mon, 29 Jan 2018 13:48:48 +0530 [thread overview]
Message-ID: <086251c4-b012-236c-33e2-9cab551a4594@codeaurora.org> (raw)
In-Reply-To: <20180126221808.GE28313@codeaurora.org>
On 01/27/2018 03:48 AM, Stephen Boyd wrote:
> On 01/25, Rajendra Nayak wrote:
>> diff --git a/arch/arm64/boot/dts/qcom/sdm845-pins.dtsi b/arch/arm64/boot/dts/qcom/sdm845-pins.dtsi
>> new file mode 100644
>> index 000000000000..b97f99e6f4b4
>> --- /dev/null
>> +++ b/arch/arm64/boot/dts/qcom/sdm845-pins.dtsi
>> @@ -0,0 +1,32 @@
>> +// SPDX-License-Identifier: GPL-2.0
>> +/*
>> + * Copyright (c) 2018, The Linux Foundation. All rights reserved.
>> + */
>> +
>> +&tlmm {
>
> I'm not the maintainer, but I find this approach to the pins
> really annoying. I have to flip to another file to figure out how
> a board has configured the pins. And we may bring in a bunch of
> settings that we don't ever use on some board too. Why can't we
> put the settings in the board file directly?
I was just keeping it consistent with how things are for other
qualcomm platforms. I can move this to the board dts if no one else
sees any issues.
>
>> + qup_uart2_default: qup_uart2_default {
>> + pinmux {
>> + function = "qup9";
>> + pins = "gpio4", "gpio5";
>> + };
>> +
>> + pinconf {
>> + pins = "gpio4", "gpio5";
>> + drive-strength = <2>;
>> + bias-disable;
>> + };
>> + };
>> +
>> + qup_uart2_sleep: qup_uart2_sleep {
>> + pinmux {
>> + function = "gpio";
>> + pins = "gpio4", "gpio5";
>> + };
>> +
>> + pinconf {
>> + pins = "gpio4", "gpio5";
>> + drive-strength = <2>;
>> + bias-disable;
>> + };
>> + };
>> +};
>> diff --git a/arch/arm64/boot/dts/qcom/sdm845.dtsi b/arch/arm64/boot/dts/qcom/sdm845.dtsi
>> index a21f4912b3e2..529f4ba3a1db 100644
>> --- a/arch/arm64/boot/dts/qcom/sdm845.dtsi
>> +++ b/arch/arm64/boot/dts/qcom/sdm845.dtsi
>> @@ -4,6 +4,7 @@
>> */
>>
>> #include <dt-bindings/interrupt-controller/arm-gic.h>
>> +#include <dt-bindings/clock/qcom,gcc-sdm845.h>
>>
>> / {
>> model = "Qualcomm Technologies, Inc. SDM845";
>
> I'd expect some sort of serial alias node stuff here too.
yes, will add.
>
>> @@ -304,5 +305,26 @@
>> cell-index = <0>;
>> };
>>
>> + qup_1: qcom,geni_se@ac0000 {
>> + compatible = "qcom,geni-se-qup";
>> + reg = <0xac0000 0x6000>;
>> + };
>> +
>> + qup_uart2: serial@a84000 {
>> + compatible = "qcom,geni-console", "qcom,geni-uart";
>> + reg = <0xa84000 0x4000>;
>> + reg-names = "se_phys";
>> + clock-names = "se-clk", "m-ahb", "s-ahb";
>> + clocks = <&gcc GCC_QUPV3_WRAP1_S1_CLK>,
>> + <&gcc GCC_QUPV3_WRAP_1_M_AHB_CLK>,
>> + <&gcc GCC_QUPV3_WRAP_1_S_AHB_CLK>;
>> + pinctrl-names = "default", "sleep";
>> + pinctrl-0 = <&qup_uart2_default>;
>> + pinctrl-1 = <&qup_uart2_sleep>;
>> + interrupts = <GIC_SPI 354 IRQ_TYPE_NONE>;
>> + qcom,wrapper-core = <&qup_1>;
>
> Is this binding still being reviewed? Ugly.
yes, its still being reviewed
>
>> + status = "disabled";
>> + };
>> };
>> };
>> +#include "sdm845-pins.dtsi"
>
> Why at the bottom?
Again keeping it consistent with how things are in msm8916/msm8992/msm8996 dtsi files.
--
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
hosted by The Linux Foundation
next prev parent reply other threads:[~2018-01-29 8:18 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-25 16:32 [PATCH 0/2] Add DTS for SDM845 SoC and MTP Rajendra Nayak
[not found] ` <20180125163216.29018-1-rnayak-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2018-01-25 16:32 ` [PATCH 1/2] arm64: dts: sdm845: Add minimal dts/dtsi files for sdm845 " Rajendra Nayak
[not found] ` <20180125163216.29018-2-rnayak-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2018-01-26 20:31 ` Evan Green
2018-01-30 8:48 ` Rajendra Nayak
2018-01-26 22:15 ` Stephen Boyd
[not found] ` <20180126221501.GD28313-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2018-01-29 8:13 ` Rajendra Nayak
2018-01-30 9:48 ` Stephen Boyd
2018-01-30 10:25 ` Rajendra Nayak
2018-02-06 20:26 ` Rob Herring
[not found] ` <CAL_JsqJ1xjQ5ZP-KXeZQ0s=ib8GTfvfYjFqyy+Zcub-akCs7Bw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-02-07 4:14 ` Rajendra Nayak
2018-02-06 18:54 ` Bjorn Andersson
2018-02-07 4:15 ` Rajendra Nayak
2018-02-06 20:31 ` Rob Herring
2018-02-07 4:47 ` Rajendra Nayak
2018-02-07 17:37 ` Rob Herring
2018-01-25 16:32 ` [PATCH 2/2] arm64: dts: sdm845: Add serial console support Rajendra Nayak
2018-01-26 22:18 ` Stephen Boyd
2018-01-29 8:18 ` Rajendra Nayak [this message]
2018-02-06 19:00 ` Bjorn Andersson
2018-02-06 18:37 ` Doug Anderson
[not found] ` <CAD=FV=WcCnQJc25=sKWtOi=ZWi=ium6DVsexuQnsLDL=aJE6-Q-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-02-06 19:06 ` Bjorn Andersson
2018-02-06 19:49 ` Doug Anderson
[not found] ` <CAD=FV=Whxf1VRJ6qx9mioEEkTeS+uJfJKPbOMcGy-Wigh_NORw-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2018-02-06 20:05 ` Bjorn Andersson
2018-02-07 4:12 ` Rajendra Nayak
[not found] ` <20180126221808.GE28313-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
2018-02-06 20:36 ` Rob Herring
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