linux-kernel - Re: [PATCH v2 2/2] arm64: dts: qcom: sm8550: add support for the SM8550-HDK board

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Date: Tue, 23 Jan 2024 16:42:21 +0100
From: Neil Armstrong <neil.armstrong@...aro.org>
To: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
Cc: Bjorn Andersson <andersson@...nel.org>,
 Konrad Dybcio <konrad.dybcio@...aro.org>, Rob Herring <robh+dt@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>, linux-arm-msm@...r.kernel.org,
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
 Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: Re: [PATCH v2 2/2] arm64: dts: qcom: sm8550: add support for the
 SM8550-HDK board

On 23/01/2024 14:02, Neil Armstrong wrote:
> On 23/01/2024 10:10, Dmitry Baryshkov wrote:
>> On Tue, 23 Jan 2024 at 10:56, Neil Armstrong <neil.armstrong@...aro.org> wrote:
>>>
>>> The SM8550-HDK is an embedded development platforms for the
>>> Snapdragon 8 Gen 2 SoC aka SM8550, with the following features:
>>> - Qualcomm SM8550 SoC
>>> - 16GiB On-board LPDDR5
>>> - On-board WiFi 7 + Bluetooth 5.3/BLE
>>> - On-board UFS4.0
>>> - M.2 Key B+M Gen3x2 PCIe Slot
>>> - HDMI Output
>>> - USB-C Connector with DP Almode & Audio Accessory mode
>>> - Micro-SDCard Slot
>>> - Audio Jack with Playback and Microphone
>>> - 2 On-board Analog microphones
>>> - 2 On-board Speakers
>>> - 96Boards Compatible Low-Speed and High-Speed connectors [1]
>>>    - For Camera, Sensors and external Display cards
>>>    - Compatible with the Linaro Debug board [2]
>>> - SIM Slot for Modem
>>> - Debug connectors
>>> - 6x On-Board LEDs
>>>
>>> Product Page: [3]
>>>
>>> [1] https://www.96boards.org/specifications/
>>> [2] https://git.codelinaro.org/linaro/qcomlt/debugboard
>>> [3] https://www.lantronix.com/products/snapdragon-8-gen-2-mobile-hardware-development-kit/
>>>
>>> Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
>>> Signed-off-by: Neil Armstrong <neil.armstrong@...aro.org>
>>> ---
>>>   arch/arm64/boot/dts/qcom/Makefile       |    1 +
>>>   arch/arm64/boot/dts/qcom/sm8550-hdk.dts | 1290 +++++++++++++++++++++++++++++++
>>>   2 files changed, 1291 insertions(+)
>>>
>>> diff --git a/arch/arm64/boot/dts/qcom/Makefile b/arch/arm64/boot/dts/qcom/Makefile
>>> index 39889d5f8e12..42e50f2b2ec3 100644
>>> --- a/arch/arm64/boot/dts/qcom/Makefile
>>> +++ b/arch/arm64/boot/dts/qcom/Makefile
>>> @@ -233,6 +233,7 @@ dtb-$(CONFIG_ARCH_QCOM)     += sm8450-hdk.dtb
>>>   dtb-$(CONFIG_ARCH_QCOM)        += sm8450-qrd.dtb
>>>   dtb-$(CONFIG_ARCH_QCOM)        += sm8450-sony-xperia-nagara-pdx223.dtb
>>>   dtb-$(CONFIG_ARCH_QCOM)        += sm8450-sony-xperia-nagara-pdx224.dtb
>>> +dtb-$(CONFIG_ARCH_QCOM)        += sm8550-hdk.dtb
>>>   dtb-$(CONFIG_ARCH_QCOM)        += sm8550-mtp.dtb
>>>   dtb-$(CONFIG_ARCH_QCOM)        += sm8550-qrd.dtb
>>>   dtb-$(CONFIG_ARCH_QCOM)        += sm8650-mtp.dtb
>>> diff --git a/arch/arm64/boot/dts/qcom/sm8550-hdk.dts b/arch/arm64/boot/dts/qcom/sm8550-hdk.dts
>>> new file mode 100644
>>> index 000000000000..66bdd6c269ea
>>> --- /dev/null
>>> +++ b/arch/arm64/boot/dts/qcom/sm8550-hdk.dts
>>> @@ -0,0 +1,1290 @@

<snip>

> 
>>
>>> +
>>> +&qupv3_id_0 {
>>> +       status = "okay";
>>> +};
>>> +
>>> +&qupv3_id_1 {
>>> +       status = "okay";
>>> +};
>>
>> BTW, don't we need to enable gpi_dma nodes for qup / i2c to work?
> 
> Good question, for i2c_mater_hib no, but for i2c0 it should be enabled

OK I understood, i2c0 is configured to use FIFO so not having gpi dma enabled doesn't fail. I'll still enable it.

Neil


<snip>