From: Andrew Halaney <ahalaney@redhat.com>
To: Douglas Anderson <dianders@chromium.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>,
Mark Brown <broonie@kernel.org>, Andy Gross <agross@kernel.org>,
Johan Hovold <johan+linaro@kernel.org>,
Konrad Dybcio <konrad.dybcio@somainline.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Rob Herring <robh+dt@kernel.org>,
devicetree@vger.kernel.org, linux-arm-msm@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/7] arm64: dts: qcom: sa8295p-adp: Specify which LDO modes are allowed
Date: Thu, 25 Aug 2022 16:33:37 -0500 [thread overview]
Message-ID: <20220825213337.3h3in2csbdcom7on@halaneylaptop> (raw)
In-Reply-To: <20220825094155.2.I430a56702ab0af65244e62667bb7743107de0c96@changeid>
On Thu, Aug 25, 2022 at 09:42:00AM -0700, Douglas Anderson wrote:
> This board uses RPMH, specifies "regulator-allow-set-load" for LDOs,
> but doesn't specify any modes with "regulator-allowed-modes".
>
> Prior to commit efb0cb50c427 ("regulator: qcom-rpmh: Implement
> get_optimum_mode(), not set_load()") the above meant that we were able
> to set either LPM or HPM mode. After that commit (and fixes [1]) we'll
> be stuck at the initial mode. Discussion of this has resulted in the
> decision that the old dts files were wrong and should be fixed to
> fully restore old functionality.
>
> Let's re-enable the old functionality by fixing the dts.
>
> [1] https://lore.kernel.org/r/20220824142229.RFT.v2.2.I6f77860e5cd98bf5c67208fa9edda4a08847c304@changeid
>
> Fixes: 519183af39b2 ("arm64: dts: qcom: add SA8540P and ADP")
> Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Andrew Halaney <ahalaney@redhat.com>
> ---
>
> arch/arm64/boot/dts/qcom/sa8295p-adp.dts | 45 ++++++++++++++++++++++++
> 1 file changed, 45 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/qcom/sa8295p-adp.dts b/arch/arm64/boot/dts/qcom/sa8295p-adp.dts
> index 9398f0349944..6d05cb54e32f 100644
> --- a/arch/arm64/boot/dts/qcom/sa8295p-adp.dts
> +++ b/arch/arm64/boot/dts/qcom/sa8295p-adp.dts
> @@ -36,6 +36,9 @@ vreg_l3a: ldo3 {
> regulator-max-microvolt = <1208000>;
> regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> regulator-allow-set-load;
> + regulator-allowed-modes =
> + <RPMH_REGULATOR_MODE_LPM
> + RPMH_REGULATOR_MODE_HPM>;
> };
>
> vreg_l5a: ldo5 {
> @@ -44,6 +47,9 @@ vreg_l5a: ldo5 {
> regulator-max-microvolt = <912000>;
> regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> regulator-allow-set-load;
> + regulator-allowed-modes =
> + <RPMH_REGULATOR_MODE_LPM
> + RPMH_REGULATOR_MODE_HPM>;
> };
>
> vreg_l7a: ldo7 {
> @@ -52,6 +58,9 @@ vreg_l7a: ldo7 {
> regulator-max-microvolt = <1800000>;
> regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> regulator-allow-set-load;
> + regulator-allowed-modes =
> + <RPMH_REGULATOR_MODE_LPM
> + RPMH_REGULATOR_MODE_HPM>;
> };
>
> vreg_l13a: ldo13 {
> @@ -60,6 +69,9 @@ vreg_l13a: ldo13 {
> regulator-max-microvolt = <3072000>;
> regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> regulator-allow-set-load;
> + regulator-allowed-modes =
> + <RPMH_REGULATOR_MODE_LPM
> + RPMH_REGULATOR_MODE_HPM>;
> };
> };
>
> @@ -73,6 +85,9 @@ vreg_l1c: ldo1 {
> regulator-max-microvolt = <912000>;
> regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> regulator-allow-set-load;
> + regulator-allowed-modes =
> + <RPMH_REGULATOR_MODE_LPM
> + RPMH_REGULATOR_MODE_HPM>;
> };
>
> vreg_l2c: ldo2 {
> @@ -81,6 +96,9 @@ vreg_l2c: ldo2 {
> regulator-max-microvolt = <3072000>;
> regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> regulator-allow-set-load;
> + regulator-allowed-modes =
> + <RPMH_REGULATOR_MODE_LPM
> + RPMH_REGULATOR_MODE_HPM>;
> };
>
> vreg_l3c: ldo3 {
> @@ -89,6 +107,9 @@ vreg_l3c: ldo3 {
> regulator-max-microvolt = <1200000>;
> regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> regulator-allow-set-load;
> + regulator-allowed-modes =
> + <RPMH_REGULATOR_MODE_LPM
> + RPMH_REGULATOR_MODE_HPM>;
> };
>
> vreg_l4c: ldo4 {
> @@ -97,6 +118,9 @@ vreg_l4c: ldo4 {
> regulator-max-microvolt = <1208000>;
> regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> regulator-allow-set-load;
> + regulator-allowed-modes =
> + <RPMH_REGULATOR_MODE_LPM
> + RPMH_REGULATOR_MODE_HPM>;
> };
>
> vreg_l6c: ldo6 {
> @@ -105,6 +129,9 @@ vreg_l6c: ldo6 {
> regulator-max-microvolt = <1200000>;
> regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> regulator-allow-set-load;
> + regulator-allowed-modes =
> + <RPMH_REGULATOR_MODE_LPM
> + RPMH_REGULATOR_MODE_HPM>;
> };
>
> vreg_l7c: ldo7 {
> @@ -113,6 +140,9 @@ vreg_l7c: ldo7 {
> regulator-max-microvolt = <1800000>;
> regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> regulator-allow-set-load;
> + regulator-allowed-modes =
> + <RPMH_REGULATOR_MODE_LPM
> + RPMH_REGULATOR_MODE_HPM>;
> };
>
> vreg_l10c: ldo10 {
> @@ -121,6 +151,9 @@ vreg_l10c: ldo10 {
> regulator-max-microvolt = <2504000>;
> regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> regulator-allow-set-load;
> + regulator-allowed-modes =
> + <RPMH_REGULATOR_MODE_LPM
> + RPMH_REGULATOR_MODE_HPM>;
> };
>
> vreg_l17c: ldo17 {
> @@ -129,6 +162,9 @@ vreg_l17c: ldo17 {
> regulator-max-microvolt = <2504000>;
> regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> regulator-allow-set-load;
> + regulator-allowed-modes =
> + <RPMH_REGULATOR_MODE_LPM
> + RPMH_REGULATOR_MODE_HPM>;
> };
> };
>
> @@ -142,6 +178,9 @@ vreg_l3g: ldo3 {
> regulator-max-microvolt = <1200000>;
> regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> regulator-allow-set-load;
> + regulator-allowed-modes =
> + <RPMH_REGULATOR_MODE_LPM
> + RPMH_REGULATOR_MODE_HPM>;
> };
>
> vreg_l7g: ldo7 {
> @@ -150,6 +189,9 @@ vreg_l7g: ldo7 {
> regulator-max-microvolt = <1800000>;
> regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> regulator-allow-set-load;
> + regulator-allowed-modes =
> + <RPMH_REGULATOR_MODE_LPM
> + RPMH_REGULATOR_MODE_HPM>;
> };
>
> vreg_l8g: ldo8 {
> @@ -158,6 +200,9 @@ vreg_l8g: ldo8 {
> regulator-max-microvolt = <880000>;
> regulator-initial-mode = <RPMH_REGULATOR_MODE_HPM>;
> regulator-allow-set-load;
> + regulator-allowed-modes =
> + <RPMH_REGULATOR_MODE_LPM
> + RPMH_REGULATOR_MODE_HPM>;
> };
> };
> };
> --
> 2.37.2.672.g94769d06f0-goog
>
next prev parent reply other threads:[~2022-08-25 21:33 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-25 16:41 [PATCH 0/7] arm64: dts: qcom: Fix broken regulator spec on RPMH boards Douglas Anderson
2022-08-25 16:41 ` [PATCH 1/7] arm64: dts: qcom: sa8155p-adp: Specify which LDO modes are allowed Douglas Anderson
2022-08-25 21:30 ` Andrew Halaney
2022-08-25 21:58 ` Doug Anderson
2022-08-26 18:40 ` Konrad Dybcio
2022-08-25 16:42 ` [PATCH 2/7] arm64: dts: qcom: sa8295p-adp: " Douglas Anderson
2022-08-25 21:33 ` Andrew Halaney [this message]
2022-08-26 18:40 ` Konrad Dybcio
2022-08-25 16:42 ` [PATCH 3/7] arm64: dts: qcom: sc8280xp-crd: " Douglas Anderson
2022-08-25 21:35 ` Andrew Halaney
2022-08-26 18:40 ` Konrad Dybcio
2022-08-25 16:42 ` [PATCH 4/7] arm64: dts: qcom: sc8280xp-thinkpad-x13s: " Douglas Anderson
2022-08-25 21:37 ` Andrew Halaney
2022-08-26 18:40 ` Konrad Dybcio
2022-08-25 16:42 ` [PATCH 5/7] arm64: dts: qcom: sm8150-xperia-kumano: " Douglas Anderson
2022-08-25 21:39 ` Andrew Halaney
2022-08-26 18:40 ` Konrad Dybcio
2022-08-25 16:42 ` [PATCH 6/7] arm64: dts: qcom: sm8250-xperia-edo: " Douglas Anderson
2022-08-25 21:39 ` Andrew Halaney
2022-08-26 18:41 ` Konrad Dybcio
2022-08-25 16:42 ` [PATCH 7/7] arm64: dts: qcom: sm8350-hdk: " Douglas Anderson
2022-08-25 21:41 ` Andrew Halaney
2022-08-26 4:56 ` Vinod Koul
2022-08-26 18:41 ` Konrad Dybcio
2022-08-26 7:02 ` [PATCH 0/7] arm64: dts: qcom: Fix broken regulator spec on RPMH boards Johan Hovold
2022-08-29 16:51 ` Doug Anderson
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