From: "Paul Sajna" <sajattack@postmarketos.org>
To: "Konrad Dybcio" <konrad.dybcio@oss.qualcomm.com>,
"Bjorn Andersson" <andersson@kernel.org>,
"Konrad Dybcio" <konradybcio@kernel.org>,
"Rob Herring" <robh@kernel.org>,
"Krzysztof Kozlowski" <krzk+dt@kernel.org>,
"Conor Dooley" <conor+dt@kernel.org>,
"David Heidelberg" <david@ixit.cz>
Cc: linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org, phone-devel@vger.kernel.org,
"Amir Dahan" <system64fumo@protonmail.com>,
"Christopher Brown" <crispybrown@gmail.com>
Subject: Re: [PATCH v4 10/12] arm64: dts: qcom: sdm845-lg-judyln: Add lab/ibb
Date: Tue, 02 Dec 2025 04:21:40 +0000 [thread overview]
Message-ID: <cb37445326732dc1c17e80d245c8a29ba3f5aee6@postmarketos.org> (raw)
In-Reply-To: <09e5d84c-39b7-45a9-b7d7-9beb54fb2f3f@oss.qualcomm.com>
December 1, 2025 at 12:38 PM, "Konrad Dybcio" <konrad.dybcio@oss.qualcomm.com mailto:konrad.dybcio@oss.qualcomm.com?to=%22Konrad%20Dybcio%22%20%3Ckonrad.dybcio%40oss.qualcomm.com%3E > wrote:
> Sorry for not responding earlier, you can retrieve the actual volt
> numbers from the hardware by reading
>
> PMI8998_IBB_REG_BASE + REG_LABIBB_VOLTAGE = 0xdc41
>
> ibb_uV = 1.4 + .1 * val
>
> PMI8998_LAB_REG_BASE + REG_LABIBB_VOLTAGE = 0xde41
>
> lab_uV = 4.6 + .1 * val
>
> Konrad
>
I found it in sysfs along the lines of your previous suggestion instead.
```
1|judyln:/ # cat /sys/kernel/debug/regulator/c440000.qcom,spmi:qcom,pmi8998@3:qpnp-labibb-regulator-ibb_reg/voltage
5500000
judyln:/ # cat /sys/kernel/debug/regulator/c440000.qcom,spmi:qcom,pmi8998@3:qpnp-labibb-regulator-lab_reg/voltage
5500000
```
next prev parent reply other threads:[~2025-12-02 4:21 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-25 8:12 [PATCH v4 00/12] arm64: dts: qcom: sdm845-lg-{common, judyln}: Improve HW support in dts Paul Sajna
2025-11-25 8:12 ` [PATCH v4 01/12] arm64: dts: qcom: sdm845-lg-common: Sort nodes and properties Paul Sajna
2025-11-25 8:12 ` [PATCH v4 02/12] arm64: dts: qcom: sdm845-lg-common: Add uarts and Bluetooth Paul Sajna
2025-11-25 8:12 ` [PATCH v4 03/12] arm64: dts: qcom: sdm845-lg-judyln: Add battery and charger Paul Sajna
2025-11-28 11:13 ` Konrad Dybcio
2025-11-25 8:12 ` [PATCH v4 04/12] arm64: dts: qcom: sdm845-lg-common: Add LEDs Paul Sajna
2025-11-28 11:14 ` Konrad Dybcio
2025-11-25 8:12 ` [PATCH v4 05/12] arm64: dts: qcom: sdm845-lg-judyln: Add display panel Paul Sajna
2025-12-01 12:44 ` Konrad Dybcio
2025-11-25 8:12 ` [PATCH v4 06/12] arm64: dts: qcom: sdm845-lg-judyln: Add firmware nodes, change path Paul Sajna
2025-11-25 9:29 ` David Heidelberg
2025-11-25 8:12 ` [PATCH v4 07/12] arm64: dts: qcom: sdm845-lg-{common, judyln}: Add wifi node Paul Sajna
2025-11-28 11:15 ` Konrad Dybcio
2025-11-25 8:12 ` [PATCH v4 08/12] arm64: dts: qcom: sdm845-lg-common: Add chassis-type Paul Sajna
2025-11-25 8:12 ` [PATCH v4 09/12] arm64: dts: qcom: sdm845-lg-common: Add camera flash Paul Sajna
2025-11-28 20:20 ` Paul Sajna
2025-12-01 11:42 ` Konrad Dybcio
2025-12-03 9:27 ` Paul Sajna
2025-12-04 9:17 ` Konrad Dybcio
2025-12-04 18:37 ` Paul Sajna
2025-12-05 10:32 ` Konrad Dybcio
2025-11-25 8:12 ` [PATCH v4 10/12] arm64: dts: qcom: sdm845-lg-judyln: Add lab/ibb Paul Sajna
2025-12-01 12:38 ` Konrad Dybcio
2025-12-02 4:21 ` Paul Sajna [this message]
2025-12-02 10:34 ` Konrad Dybcio
2025-11-25 8:12 ` [PATCH v4 11/12] arm64: dts: qcom: sdm845-lg-common: Change ipa gsi-loader to 'self' Paul Sajna
2025-11-25 8:12 ` [PATCH v4 12/12] arm64: dts: qcom: sdm845-lg-common: remove framebuffer reserved-mem Paul Sajna
2025-12-01 12:41 ` Konrad Dybcio
2025-12-02 4:41 ` Paul Sajna
2025-12-02 10:34 ` Konrad Dybcio
2025-12-03 8:42 ` Paul Sajna
2025-12-03 10:37 ` David Heidelberg
2025-12-03 10:45 ` David Heidelberg
2025-12-03 10:55 ` Konrad Dybcio
2025-11-25 18:09 ` [PATCH v4 00/12] arm64: dts: qcom: sdm845-lg-{common, judyln}: Improve HW support in dts Rob Herring
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