From: Konrad Dybcio <konrad.dybcio@linaro.org>
To: Brian Masney <bmasney@redhat.com>,
andersson@kernel.org, krzysztof.kozlowski+dt@linaro.org
Cc: robh+dt@kernel.org, johan+linaro@kernel.org,
linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, ahalaney@redhat.com,
echanude@redhat.com, quic_shazhuss@quicinc.com
Subject: Re: [PATCH 3/4] arm64: dts: qcom: sa8540p-ride: add qup1_i2c15 and qup2_i2c18 nodes
Date: Tue, 13 Dec 2022 15:48:27 +0100 [thread overview]
Message-ID: <309b3fad-933c-6c45-5cd7-4e082da62c15@linaro.org> (raw)
In-Reply-To: <20221212182314.1902632-4-bmasney@redhat.com>
On 12.12.2022 19:23, Brian Masney wrote:
> Add the necessary nodes in order to get qup1_i2c15 and qup2_i2c18
> functioning on the automotive board and exposed to userspace.
>
> This work was derived from various patches that Qualcomm delivered
> to Red Hat in a downstream kernel. This change was validated by using
> i2c-tools 4.3.3 on CentOS Stream 9:
>
> [root@localhost ~]# i2cdetect -l
> i2c-15 i2c Geni-I2C I2C adapter
> i2c-18 i2c Geni-I2C I2C adapter
>
> [root@localhost ~]# i2cdetect -a -y 15
> Warning: Can't use SMBus Quick Write command, will skip some addresses
> 0 1 2 3 4 5 6 7 8 9 a b c d e f
> 00:
> 10:
> 20:
> 30: -- -- -- -- -- -- -- --
> 40:
> 50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
> 60:
> 70:
>
> Bus 18 has the same output. I validated that we get the same output on
> the downstream kernel.
>
> Signed-off-by: Brian Masney <bmasney@redhat.com>
> ---
> arch/arm64/boot/dts/qcom/sa8540p-ride.dts | 46 +++++++++++++++++++++++
> 1 file changed, 46 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/sa8540p-ride.dts b/arch/arm64/boot/dts/qcom/sa8540p-ride.dts
> index d70859803fbd..6dc3f3ff8ece 100644
> --- a/arch/arm64/boot/dts/qcom/sa8540p-ride.dts
> +++ b/arch/arm64/boot/dts/qcom/sa8540p-ride.dts
> @@ -17,6 +17,8 @@ / {
> compatible = "qcom,sa8540p-ride", "qcom,sa8540p";
>
> aliases {
> + i2c15 = &qup1_i2c15;
> + i2c18 = &qup2_i2c18;
> serial0 = &qup2_uart17;
> };
>
> @@ -188,10 +190,28 @@ &pcie3a_phy {
> status = "okay";
> };
>
> +&qup1 {
> + status = "okay";
> +};
> +
> +&qup1_i2c15 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&qup1_i2c15_default>;
> +
> + status = "okay";
> +};
> +
> &qup2 {
> status = "okay";
> };
>
> +&qup2_i2c18 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&qup2_i2c18_default>;
> +
> + status = "okay";
> +};
> +
> &qup2_uart17 {
> compatible = "qcom,geni-debug-uart";
> status = "okay";
> @@ -313,4 +333,30 @@ wake-pins {
> bias-pull-up;
> };
> };
> +
> + qup1_i2c15_default: qup1-i2c15-state {
You can drop mux/config-pins and have the pin properties live directly
under the qup1-i2cN-state node.
Konrad
> + mux-pins {
> + pins = "gpio36", "gpio37";
> + function = "qup15";
> + };
> +
> + config-pins {
> + pins = "gpio36", "gpio37";
> + drive-strength = <0x02>;
> + bias-pull-up;
> + };
> + };
> +
> + qup2_i2c18_default: qup2-i2c18-state {
> + mux-pins {
> + pins = "gpio66", "gpio67";
> + function = "qup18";
> + };
> +
> + config-pins {
> + pins = "gpio66", "gpio67";
> + drive-strength = <0x02>;
> + bias-pull-up;
> + };
> + };
> };
next prev parent reply other threads:[~2022-12-13 14:49 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-12 18:23 [PATCH 0/4] arm64: dts: qcom: sc8280xp: add i2c and spi nodes Brian Masney
2022-12-12 18:23 ` [PATCH 1/4] arm64: dts: qcom: sc8280xp: rename i2c5 to i2c21 Brian Masney
2022-12-12 18:48 ` Konrad Dybcio
2022-12-13 14:54 ` Johan Hovold
2022-12-13 15:04 ` Shazad Hussain
2022-12-13 15:19 ` Johan Hovold
2022-12-13 15:05 ` Brian Masney
2022-12-13 15:12 ` Brian Masney
2022-12-13 15:28 ` Johan Hovold
2022-12-13 15:34 ` Shazad Hussain
2022-12-13 15:39 ` Johan Hovold
2022-12-13 15:42 ` Johan Hovold
2022-12-13 15:44 ` Konrad Dybcio
2022-12-13 16:15 ` Johan Hovold
2022-12-13 15:45 ` Shazad Hussain
2022-12-13 15:17 ` Johan Hovold
2022-12-13 15:29 ` Konrad Dybcio
2022-12-13 15:32 ` Johan Hovold
2022-12-13 15:59 ` Brian Masney
2022-12-13 16:22 ` Johan Hovold
2022-12-12 18:23 ` [PATCH 2/4] arm64: dts: qcom: sc8280xp: add missing i2c nodes Brian Masney
2022-12-12 18:23 ` [PATCH 3/4] arm64: dts: qcom: sa8540p-ride: add qup1_i2c15 and qup2_i2c18 nodes Brian Masney
2022-12-13 7:18 ` Shazad Hussain
2022-12-13 14:48 ` Konrad Dybcio [this message]
2022-12-14 12:30 ` Brian Masney
2022-12-14 12:52 ` Krzysztof Kozlowski
2022-12-14 14:19 ` Brian Masney
2022-12-14 12:53 ` Konrad Dybcio
2022-12-14 15:36 ` Shazad Hussain
2022-12-14 16:24 ` Brian Masney
2022-12-13 14:59 ` Johan Hovold
2022-12-14 12:51 ` Krzysztof Kozlowski
2022-12-12 18:23 ` [PATCH 4/4] arm64: dts: qcom: sc8280xp: add missing spi nodes Brian Masney
2022-12-13 7:16 ` Shazad Hussain
2022-12-13 12:27 ` Brian Masney
2022-12-13 12:47 ` Mark Brown
2022-12-13 13:02 ` Krzysztof Kozlowski
2022-12-13 13:08 ` Javier Martinez Canillas
2022-12-13 14:36 ` Brian Masney
2022-12-13 14:45 ` Shazad Hussain
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=309b3fad-933c-6c45-5cd7-4e082da62c15@linaro.org \
--to=konrad.dybcio@linaro.org \
--cc=ahalaney@redhat.com \
--cc=andersson@kernel.org \
--cc=bmasney@redhat.com \
--cc=devicetree@vger.kernel.org \
--cc=echanude@redhat.com \
--cc=johan+linaro@kernel.org \
--cc=krzysztof.kozlowski+dt@linaro.org \
--cc=linux-arm-msm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=quic_shazhuss@quicinc.com \
--cc=robh+dt@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).