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[76.88.115.8]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-225c6ba6f14sm100739465ad.111.2025.03.18.16.00.53 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 18 Mar 2025 16:00:54 -0700 (PDT) From: Sukrut Bellary To: Kevin Hilman , Russell King , Rob Herring , Tony Lindgren , Krzysztof Kozlowski , Nishanth Menon , Ulf Hansson Cc: Sukrut Bellary , Aaro Koskinen , Andreas Kemnade , Roger Quadros , Conor Dooley , Santosh Shilimkar , Bajjuri Praneeth , Raghavendra Vignesh , Bin Liu , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-omap@vger.kernel.org, devicetree@vger.kernel.org, linux-pm@vger.kernel.org Subject: [PATCH 1/4] ARM: OMAP2+: Fix l4ls clk domain handling in STANDBY Date: Tue, 18 Mar 2025 16:00:39 -0700 Message-Id: <20250318230042.3138542-2-sbellary@baylibre.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250318230042.3138542-1-sbellary@baylibre.com> References: <20250318230042.3138542-1-sbellary@baylibre.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Don't put the l4ls clk domain to sleep in case of standby. Since CM3 PM FW[1](ti-v4.1.y) doesn't wake-up/enable the l4ls clk domain upon wake-up, CM3 PM FW fails to wake-up the MPU. [1] https://git.ti.com/cgit/processor-firmware/ti-amx3-cm3-pm-firmware/ Signed-off-by: Sukrut Bellary Tested-by: Judith Mendez --- arch/arm/mach-omap2/clockdomain.h | 1 + arch/arm/mach-omap2/clockdomains33xx_data.c | 2 +- arch/arm/mach-omap2/cm33xx.c | 14 +++++++++++++- 3 files changed, 15 insertions(+), 2 deletions(-) diff --git a/arch/arm/mach-omap2/clockdomain.h b/arch/arm/mach-omap2/clockd= omain.h index c36fb2721261..86a2f9e5d0ef 100644 --- a/arch/arm/mach-omap2/clockdomain.h +++ b/arch/arm/mach-omap2/clockdomain.h @@ -48,6 +48,7 @@ #define CLKDM_NO_AUTODEPS (1 << 4) #define CLKDM_ACTIVE_WITH_MPU (1 << 5) #define CLKDM_MISSING_IDLE_REPORTING (1 << 6) +#define CLKDM_STANDBY_FORCE_WAKEUP BIT(7) =20 #define CLKDM_CAN_HWSUP (CLKDM_CAN_ENABLE_AUTO | CLKDM_CAN_DISABLE_AUTO) #define CLKDM_CAN_SWSUP (CLKDM_CAN_FORCE_SLEEP | CLKDM_CAN_FORCE_WAKEUP) diff --git a/arch/arm/mach-omap2/clockdomains33xx_data.c b/arch/arm/mach-om= ap2/clockdomains33xx_data.c index 87f4e927eb18..c05a3c07d448 100644 --- a/arch/arm/mach-omap2/clockdomains33xx_data.c +++ b/arch/arm/mach-omap2/clockdomains33xx_data.c @@ -19,7 +19,7 @@ static struct clockdomain l4ls_am33xx_clkdm =3D { .pwrdm =3D { .name =3D "per_pwrdm" }, .cm_inst =3D AM33XX_CM_PER_MOD, .clkdm_offs =3D AM33XX_CM_PER_L4LS_CLKSTCTRL_OFFSET, - .flags =3D CLKDM_CAN_SWSUP, + .flags =3D CLKDM_CAN_SWSUP | CLKDM_STANDBY_FORCE_WAKEUP, }; =20 static struct clockdomain l3s_am33xx_clkdm =3D { diff --git a/arch/arm/mach-omap2/cm33xx.c b/arch/arm/mach-omap2/cm33xx.c index acdf72a541c0..a4dd42abda89 100644 --- a/arch/arm/mach-omap2/cm33xx.c +++ b/arch/arm/mach-omap2/cm33xx.c @@ -20,6 +20,9 @@ #include "cm-regbits-34xx.h" #include "cm-regbits-33xx.h" #include "prm33xx.h" +#if IS_ENABLED(CONFIG_SUSPEND) +#include +#endif =20 /* * CLKCTRL_IDLEST_*: possible values for the CM_*_CLKCTRL.IDLEST bitfield: @@ -328,8 +331,17 @@ static int am33xx_clkdm_clk_disable(struct clockdomain= *clkdm) { bool hwsup =3D false; =20 +#if IS_ENABLED(CONFIG_SUSPEND) + /* + * In case of standby, Don't put the l4ls clk domain to sleep. + * Since CM3 PM FW doesn't wake-up/enable the l4ls clk domain + * upon wake-up, CM3 PM FW fails to wake-up th MPU. + */ + if (pm_suspend_target_state =3D=3D PM_SUSPEND_STANDBY && + (clkdm->flags & CLKDM_STANDBY_FORCE_WAKEUP)) + return 0; +#endif hwsup =3D am33xx_cm_is_clkdm_in_hwsup(clkdm->cm_inst, clkdm->clkdm_offs); - if (!hwsup && (clkdm->flags & CLKDM_CAN_FORCE_SLEEP)) am33xx_clkdm_sleep(clkdm); 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[76.88.115.8]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-225c6ba6f14sm100739465ad.111.2025.03.18.16.00.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 18 Mar 2025 16:00:56 -0700 (PDT) From: Sukrut Bellary To: Kevin Hilman , Russell King , Rob Herring , Tony Lindgren , Krzysztof Kozlowski , Nishanth Menon , Ulf Hansson Cc: Sukrut Bellary , Aaro Koskinen , Andreas Kemnade , Roger Quadros , Conor Dooley , Santosh Shilimkar , Bajjuri Praneeth , Raghavendra Vignesh , Bin Liu , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-omap@vger.kernel.org, devicetree@vger.kernel.org, linux-pm@vger.kernel.org Subject: [PATCH 2/4] pmdomain: ti: Fix STANDBY handling of PER power domain Date: Tue, 18 Mar 2025 16:00:40 -0700 Message-Id: <20250318230042.3138542-3-sbellary@baylibre.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250318230042.3138542-1-sbellary@baylibre.com> References: <20250318230042.3138542-1-sbellary@baylibre.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Per AM335x TRM[1](section 8.1.4.3 Power mode), in case of STANDBY, PER domain should be ON. So, fix the PER power domain handling on standby. [1] https://www.ti.com/lit/ug/spruh73q/spruh73q.pdf Signed-off-by: Sukrut Bellary Reviewed-by: Kevin Hilman Tested-by: Judith Mendez --- drivers/pmdomain/ti/omap_prm.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/drivers/pmdomain/ti/omap_prm.c b/drivers/pmdomain/ti/omap_prm.c index b8ceb3c2b81c..7e36e675a8c6 100644 --- a/drivers/pmdomain/ti/omap_prm.c +++ b/drivers/pmdomain/ti/omap_prm.c @@ -18,7 +18,9 @@ #include #include #include - +#if IS_ENABLED(CONFIG_SUSPEND) +#include +#endif #include =20 enum omap_prm_domain_mode { @@ -88,6 +90,7 @@ struct omap_reset_data { #define OMAP_PRM_HAS_RSTST BIT(1) #define OMAP_PRM_HAS_NO_CLKDM BIT(2) #define OMAP_PRM_RET_WHEN_IDLE BIT(3) +#define OMAP_PRM_ON_WHEN_STANDBY BIT(4) =20 #define OMAP_PRM_HAS_RESETS (OMAP_PRM_HAS_RSTCTRL | OMAP_PRM_HAS_RSTST) =20 @@ -404,7 +407,8 @@ static const struct omap_prm_data am3_prm_data[] =3D { .name =3D "per", .base =3D 0x44e00c00, .pwrstctrl =3D 0xc, .pwrstst =3D 0x8, .dmap =3D &omap_prm_noinact, .rstctrl =3D 0x0, .rstmap =3D am3_per_rst_map, - .flags =3D OMAP_PRM_HAS_RSTCTRL, .clkdm_name =3D "pruss_ocp" + .flags =3D OMAP_PRM_HAS_RSTCTRL | OMAP_PRM_ON_WHEN_STANDBY, + .clkdm_name =3D "pruss_ocp", }, { .name =3D "wkup", .base =3D 0x44e00d00, --=20 2.34.1 From nobody Wed Dec 17 08:59:13 2025 Received: from mail-pl1-f182.google.com (mail-pl1-f182.google.com [209.85.214.182]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id CEFFA214213 for ; 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[76.88.115.8]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-225c6ba6f14sm100739465ad.111.2025.03.18.16.00.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 18 Mar 2025 16:00:59 -0700 (PDT) From: Sukrut Bellary To: Kevin Hilman , Russell King , Rob Herring , Tony Lindgren , Krzysztof Kozlowski , Nishanth Menon , Ulf Hansson Cc: Sukrut Bellary , Aaro Koskinen , Andreas Kemnade , Roger Quadros , Conor Dooley , Santosh Shilimkar , Bajjuri Praneeth , Raghavendra Vignesh , Bin Liu , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-omap@vger.kernel.org, devicetree@vger.kernel.org, linux-pm@vger.kernel.org Subject: [PATCH 3/4] ARM: dts: am335x: Set wakeup-source for UART0 Date: Tue, 18 Mar 2025 16:00:41 -0700 Message-Id: <20250318230042.3138542-4-sbellary@baylibre.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250318230042.3138542-1-sbellary@baylibre.com> References: <20250318230042.3138542-1-sbellary@baylibre.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" On am335x evm[1], UART0(UART1-HW) has a wakeup capability. Set wakeup-source, which will be used in the omap serial driver to enable the device wakeup capability. [1] https://www.ti.com/tool/TMDXEVM3358 [2] AM335x TRM - https://www.ti.com/lit/ug/spruh73q/spruh73q.pdf Signed-off-by: Sukrut Bellary Tested-by: Judith Mendez --- arch/arm/boot/dts/ti/omap/am335x-evm.dts | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/arm/boot/dts/ti/omap/am335x-evm.dts b/arch/arm/boot/dts/t= i/omap/am335x-evm.dts index 61bf8bcd4c4e..20222f82f21b 100644 --- a/arch/arm/boot/dts/ti/omap/am335x-evm.dts +++ b/arch/arm/boot/dts/ti/omap/am335x-evm.dts @@ -388,7 +388,7 @@ AM33XX_PADCONF(AM335X_PIN_UART0_RTSN, PIN_INPUT_PULLDOW= N, MUX_MODE2) /* uart0_rt &uart0 { pinctrl-names =3D "default"; pinctrl-0 =3D <&uart0_pins>; - + wakeup-source; status =3D "okay"; }; =20 --=20 2.34.1 From nobody Wed Dec 17 08:59:13 2025 Received: from mail-pl1-f174.google.com (mail-pl1-f174.google.com [209.85.214.174]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 153312144C0 for ; Tue, 18 Mar 2025 23:01:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.214.174 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742338864; cv=none; b=KH6F+O6bUd7e6DIsxCZ7160qcw4qxiMVlGDZh+Jyn8bFkerGAxx6Se5TcLbTLh+2OhY3YEhJMMZN664eCKHgZ+EQ1F5Ja/sck21CzSYnl8+8N4QfScCB14l5bE+ZaTJU2XBjlJY4wH1OQCEScrKz4zOPNUprkweu2+tQgqR1MLQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1742338864; c=relaxed/simple; bh=/uzA/KJrTOFFakH+TO1IPmQV5uCsNGlZTZ/BRQx9ipo=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=i2TwaPmmsO6C9ohDWkGJQK0QQao6sa3LJ5OAONENXnKlptVkD+wHkzwxy2AJ5SUxxmWxNt2fGhhoJqA452zaxrlj9t/oGTvDG1l+Wn/LOcUcblAapbTEgKMD0Sc0j+EhGW5ZFCNCurudYdxd3RUBr2oyF61D35NR2P1wll5cD9Y= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=baylibre.com; spf=pass smtp.mailfrom=baylibre.com; dkim=pass (2048-bit key) header.d=baylibre-com.20230601.gappssmtp.com header.i=@baylibre-com.20230601.gappssmtp.com header.b=Z1AgQk3M; arc=none smtp.client-ip=209.85.214.174 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=baylibre.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=baylibre.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=baylibre-com.20230601.gappssmtp.com header.i=@baylibre-com.20230601.gappssmtp.com header.b="Z1AgQk3M" Received: by mail-pl1-f174.google.com with SMTP id d9443c01a7336-22580c9ee0aso108172205ad.2 for ; Tue, 18 Mar 2025 16:01:02 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20230601.gappssmtp.com; s=20230601; t=1742338862; x=1742943662; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=jMDUDwI/ykvsmvKBODi6azon2DC/c4gZowN4BruVYoU=; b=Z1AgQk3MvsOV1TC4Zfxl/FpKRG3Gm29LQDXUPhgYLz9TjFQIwqBDpUokYXqkFyvPT2 q7iHRPRIFZvTqPLfl2evfJ+tV6kcMMgxQF5dRTibjDg0AdpNfJSGtCzE45+bao00y4pT XMU1vL5NHoBKcCDpYARCDubQJYEr+F2bgYB+wBvr+VU7bIhT1Q/An5LihGf5uVOWTblU b5fOdwRmhxuCHRfzcHN1ZNOxpfXzei+dounf33Is+ZcqLMFrZsTSRmRIGMvwD1xJVUMq zomibMFLhhmSXGSXWdcegwXzXnR+NoTUHHDKeoTVHR+7ZbOLPDsguAfToZYkfMiPH06M nbEw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1742338862; x=1742943662; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=jMDUDwI/ykvsmvKBODi6azon2DC/c4gZowN4BruVYoU=; b=fRb0WYOFN1wxlOL1FhMJT9N5hYUtNOtfOmY8K4C8wKYCC5XXZ4Anmd/58IWaJdmvy5 TxScpuSmAkaQUgs3l90nc7lftVliLNS+jcaYroXcKT6ZynDvd6JhkKDpCKv5XG2iz2AO rRkfg+eOC6nTBWM4357joSDuPnlfs8wG041wvDnPKbgd8qdA5KKSm3n7yoFtPXXhknAy Pk3Uwyj7NMdxoLjtLZ3TWtK3ZsxH3Z68i1q/QEzusw3ePayjlinxJBzpI/rD6p92EMsj t4FQFfUkuJAbJjs+jVWc2dfnllRkUxCqt/VVnq34ppsw18qly28gUxgWjPd8uW23B5vR dv/Q== X-Forwarded-Encrypted: i=1; AJvYcCXkcPVaRCoPHTmPEqNmhpuSUO7stfkCXPxzqBX7E7XxrhEE/hzV8yL9IHt7C3UiIRYIBR6QRMoN4I/glog=@vger.kernel.org X-Gm-Message-State: AOJu0Yw63zKIffq0ujKu6ct0Bjz+cJ34m1B9Gh8tmuMPk8+mZd5URLPF VN5szz9fw8+H4eN3U64GeKMiGZmiKo4HWAdjN5pjRB78pJH6IGCmthPnXOLXe0I= X-Gm-Gg: ASbGncvhoDCa6AEP6n/EjnRJx0zJwvD+SsvjOdvAk/n/7/t42ereZ93e2IaJsteqWfp iS8q9KNcfDY1dPGoh3AKcm8vwSCQcDhWXHN0rZxLcpy3sVoIs5WzoPWdg2kK/UJz7wmLJfm8Q8G EaCoXOo8k8fiFNE0jHU7KUAj5FVpN+EQfxuvne0kwt/wXQvN1k8wD3dcnjGe1m84CR2UNXrXDyZ oaOtWblKFvjAdzEK+cv9ErFCVtOGrKisHvoScyx9+57TEKaznRfI2jq51mcY8iFshVE5S1sUl0/ SZ4eLwy0y6cYRNSDK8CJZJxrD6A4aZPrFBFgM0Tmv8Kq2+BvnngILJj/x/8XKYPwHqF/+hz3y4V 9yaZbRAQ= X-Google-Smtp-Source: AGHT+IET8hPlzYxJjNAKwUxaX04oJy+bl8g7nOQMt8+vAfkRPrb30J30Y6geQFPYgmWuAJsrOk+VLA== X-Received: by 2002:a17:902:d2c6:b0:215:acb3:3786 with SMTP id d9443c01a7336-2264993661fmr6704785ad.19.1742338862423; Tue, 18 Mar 2025 16:01:02 -0700 (PDT) Received: from dev-linux.. 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[76.88.115.8]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-225c6ba6f14sm100739465ad.111.2025.03.18.16.01.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 18 Mar 2025 16:01:01 -0700 (PDT) From: Sukrut Bellary To: Kevin Hilman , Russell King , Rob Herring , Tony Lindgren , Krzysztof Kozlowski , Nishanth Menon , Ulf Hansson Cc: Sukrut Bellary , Aaro Koskinen , Andreas Kemnade , Roger Quadros , Conor Dooley , Santosh Shilimkar , Bajjuri Praneeth , Raghavendra Vignesh , Bin Liu , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-omap@vger.kernel.org, devicetree@vger.kernel.org, linux-pm@vger.kernel.org Subject: [PATCH 4/4] ARM: multi_v7_defconfig: Enable am335x PM configs Date: Tue, 18 Mar 2025 16:00:42 -0700 Message-Id: <20250318230042.3138542-5-sbellary@baylibre.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250318230042.3138542-1-sbellary@baylibre.com> References: <20250318230042.3138542-1-sbellary@baylibre.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Enable Power management related defconfigs for TI AM335x[1]. [1] AM335x TRM - https://www.ti.com/lit/ug/spruh73q/spruh73q.pdf Signed-off-by: Sukrut Bellary Reviewed-by: Kevin Hilman Tested-by: Judith Mendez --- arch/arm/configs/multi_v7_defconfig | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/arch/arm/configs/multi_v7_defconfig b/arch/arm/configs/multi_v= 7_defconfig index 37e3baa33b67..1d2600b5f975 100644 --- a/arch/arm/configs/multi_v7_defconfig +++ b/arch/arm/configs/multi_v7_defconfig @@ -985,6 +985,7 @@ CONFIG_EDAC=3Dy CONFIG_EDAC_LAYERSCAPE=3Dy CONFIG_EDAC_HIGHBANK_MC=3Dy CONFIG_EDAC_HIGHBANK_L2=3Dy +CONFIG_RTC_DRV_OMAP=3Dy CONFIG_RTC_CLASS=3Dy CONFIG_RTC_DRV_AC100=3Dy CONFIG_RTC_DRV_AS3722=3Dy @@ -1095,6 +1096,7 @@ CONFIG_TEGRA_IOMMU_SMMU=3Dy CONFIG_EXYNOS_IOMMU=3Dy CONFIG_QCOM_IOMMU=3Dy CONFIG_REMOTEPROC=3Dy +CONFIG_WKUP_M3_RPROC=3Dm CONFIG_OMAP_REMOTEPROC=3Dm CONFIG_OMAP_REMOTEPROC_WATCHDOG=3Dy CONFIG_KEYSTONE_REMOTEPROC=3Dm @@ -1146,6 +1148,8 @@ CONFIG_ARCH_TEGRA_3x_SOC=3Dy CONFIG_ARCH_TEGRA_114_SOC=3Dy CONFIG_ARCH_TEGRA_124_SOC=3Dy CONFIG_SOC_TI=3Dy +CONFIG_AMX3_PM=3Dm +CONFIG_WKUP_M3_IPC=3Dm CONFIG_KEYSTONE_NAVIGATOR_QMSS=3Dy CONFIG_KEYSTONE_NAVIGATOR_DMA=3Dy CONFIG_RASPBERRYPI_POWER=3Dy @@ -1162,6 +1166,7 @@ CONFIG_EXTCON_MAX77693=3Dm CONFIG_EXTCON_MAX8997=3Dm CONFIG_EXTCON_USB_GPIO=3Dy CONFIG_TI_AEMIF=3Dy +CONFIG_TI_EMIF_SRAM=3Dm CONFIG_STM32_FMC2_EBI=3Dy CONFIG_EXYNOS5422_DMC=3Dm CONFIG_IIO=3Dy --=20 2.34.1