From: Stephan Gerhold Date: Mon, 11 Sep 2023 17:41:50 +0000 (+0200) Subject: arm64: dts: qcom: msm8916/39: Move mpss_mem size to boards X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=35efa1be51bd6db067d7380b34538b17b9f250a8;p=linux.git arm64: dts: qcom: msm8916/39: Move mpss_mem size to boards The modem firmware size is typically highly device-specific. The current size of the mpss_mem region in msm8916.dtsi (0x2b00000) only works for some APQ8016 devices without full-featured modem, such as the DragonBoard 410c. The full modem firmware is typically about twice as large (~45 MiB -> ~90 MiB) but also varies by a few MiB from device to device. Since these devices are quite memory-constrained nowadays it's important to minimize the unnecessary memory reservations. Make it clear that each board needs to specify the necessary mpss_mem size by replacing the DB410c-specific size in msm8916.dtsi with a simple comment. &mpss_mem is disabled by default so it's fine to leave some properties up to the boards if they want to enable it. Signed-off-by: Stephan Gerhold Link: https://lore.kernel.org/r/20230911-msm8916-rmem-v1-8-b7089ec3e3a1@gerhold.net Signed-off-by: Bjorn Andersson --- diff --git a/arch/arm64/boot/dts/qcom/apq8016-sbc.dts b/arch/arm64/boot/dts/qcom/apq8016-sbc.dts index 0fcf341f735bf..3c51f891029e6 100644 --- a/arch/arm64/boot/dts/qcom/apq8016-sbc.dts +++ b/arch/arm64/boot/dts/qcom/apq8016-sbc.dts @@ -263,6 +263,7 @@ &mpss_mem { status = "okay"; + reg = <0x0 0x86800000 0x0 0x2b00000>; }; &pm8916_codec { diff --git a/arch/arm64/boot/dts/qcom/msm8916.dtsi b/arch/arm64/boot/dts/qcom/msm8916.dtsi index 563709d95c0d1..b141331f51fd5 100644 --- a/arch/arm64/boot/dts/qcom/msm8916.dtsi +++ b/arch/arm64/boot/dts/qcom/msm8916.dtsi @@ -84,7 +84,7 @@ * alignment = <0x0 0x400000>; * alloc-ranges = <0x0 0x86800000 0x0 0x8000000>; */ - reg = <0x0 0x86800000 0x0 0x2b00000>; + reg = <0x0 0x86800000 0x0 0>; /* size is device-specific */ no-map; status = "disabled"; }; diff --git a/arch/arm64/boot/dts/qcom/msm8939.dtsi b/arch/arm64/boot/dts/qcom/msm8939.dtsi index c50f6d828fedc..ba177725f3d7f 100644 --- a/arch/arm64/boot/dts/qcom/msm8939.dtsi +++ b/arch/arm64/boot/dts/qcom/msm8939.dtsi @@ -356,7 +356,7 @@ * alignment = <0x0 0x400000>; * alloc-ranges = <0x0 0x86800000 0x0 0x8000000>; */ - reg = <0x0 0x86800000 0x0 0x5500000>; + reg = <0x0 0x86800000 0x0 0>; /* size is device-specific */ no-map; status = "disabled"; };