From nobody Fri Dec 19 17:13:22 2025 Received: from mail-lf1-f54.google.com (mail-lf1-f54.google.com [209.85.167.54]) (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 129F7745F4 for ; Mon, 26 Aug 2024 08:14:53 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.167.54 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724660096; cv=none; b=jlPIldPSR7nQxEjhfLVCxDbPNdIHxYZNzxAiLZKsuXf6LVdaZToMXCwx7EKLkdicn3XGsunW7zvpi0bLnO0barDa5wLtnwzaQWcGnZVUacrL4wbgaQkngIh1NBkJC2qiubfCinw+MztK+vd6C0haRQGyXD0rHq+3gWdZ0X1pIHI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724660096; c=relaxed/simple; bh=2eV6W9tYbtSdWrpffx5VT+2y8gBopVdJZwHhxYi7dik=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=HMgMJopDfCzyXnHKUO0ofDwJxIapwpn3tWK8nsLoP4kQr7P1wTxuUsK4anYzqYCXAhq2vGIy8PjWRcnMTnZT3rL9K0UCcH4x0ozt2kLDzKK13qugBmav9kKoeq6tRVo/0qlQHioUXYmoVc5o8ILJ7FsnWz2VS/VQGJBThKXJIYY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com; spf=pass smtp.mailfrom=gmail.com; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b=KEpbJe8x; arc=none smtp.client-ip=209.85.167.54 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=gmail.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="KEpbJe8x" Received: by mail-lf1-f54.google.com with SMTP id 2adb3069b0e04-533463f6b16so4591165e87.1 for ; Mon, 26 Aug 2024 01:14:53 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20230601; t=1724660092; x=1725264892; darn=vger.kernel.org; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=VbEBO3od+dmil6KLVdVTRjjTL/8ji8uuuYWl2V11Nn4=; b=KEpbJe8xLgCyCGe1j7caMMVDWQnCX2OE+cmhr3aJL4lEZkODENn1tYr26EhQ3bibzJ cgoitizVUe077R0x4F+Zwcaupf5u1OtITwgrztJBEk5O9FVkXH2Y2iwCdLMbA6t4frcu /UfCUxmer1BgIRzO3gLmLeg3q7ZpO+KjxEUWSqiAgSbRQo2reKr9t2dt+jVgSDsRmHp0 oV5qig9kACZZin6FhQ7YG9V/q7/ceYsiXtyFRTaCoZkPK+lkkmZhs6DBuA4SlMWTIvlX AOjGfrwh/UkhBuKIayF9zRPaWnwi0LIeBGz+qz8XQ9WbQu9tpKnyNZrusVthhOuXYCkD Vs8g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1724660092; x=1725264892; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=VbEBO3od+dmil6KLVdVTRjjTL/8ji8uuuYWl2V11Nn4=; b=wU0RjbQvJnq/ILCWxJXA1AJcYqS7Hp0bKmzWZOVIdBAtylt4PG3IQlALuYJHZ3AX+Q kLy/QitIQt39RibB7qxcY0GMqz1dPPJYRn3G3zltoSQXilhFEVDE2I1Ad1xSwGzqj2Bd ozsAenq4EKYNeSCWpN84U3K7rY89aMw2J1LWORPBwH42JPwyVWQ6RDEocf+rVcMwJTPC l1rrznzTcy48Ct5JnK+jXSjfCmZOT7Xn6mPbITEc8UxNqaJaH1DgL3C/XCzoRyaSle// FHBtNiKGKausPzF1GwaC5xf0YhRUUEPeKo8Y3uwhOR+hNfq72K8gS+1+cUJGhKla5Iv0 LsGQ== X-Forwarded-Encrypted: i=1; AJvYcCXC3VCXYDkwfuPk+9EJ/PvZVMKsINukBHA3HhpERe0l8hAxLkUVRfQtUizzwfA9VPWF1tynBBc/FDSDU+k=@vger.kernel.org X-Gm-Message-State: AOJu0YxGZe3WyAVTuWgYc7l7Pd80pmItg7JXlclanM/gLUG4yC+5u5vO OsYYbYfbgWMESw0g5Py0oaXqUbOfA1GAvMjJh++jAcuy2z4uZ1X11O4egQ== X-Google-Smtp-Source: AGHT+IEI/7OWhjDsH4xJJR3Pvu/+lWv5iGRkBsJ04o+QHQjb4Bp9m48NFAwMWwKDjpmDEKkm0aCyog== X-Received: by 2002:a05:6512:2812:b0:530:e323:b1ca with SMTP id 2adb3069b0e04-534387850e7mr5361523e87.25.1724660091336; Mon, 26 Aug 2024 01:14:51 -0700 (PDT) Received: from fedora ([213.255.186.46]) by smtp.gmail.com with ESMTPSA id 2adb3069b0e04-5334ea5956dsm1371380e87.143.2024.08.26.01.14.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 26 Aug 2024 01:14:49 -0700 (PDT) Date: Mon, 26 Aug 2024 11:14:45 +0300 From: Matti Vaittinen To: Matti Vaittinen , Matti Vaittinen Cc: Matti Vaittinen , Lee Jones , Liam Girdwood , Mark Brown , linux-kernel@vger.kernel.org Subject: [PATCH 1/2] mfd: bd96801: Add ERRB IRQ Message-ID: <05b576f3eef81a21cb9b4bcebee4873b7aafb4af.1724655894.git.mazziesaccount@gmail.com> References: Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: multipart/signed; micalg=pgp-sha256; protocol="application/pgp-signature"; boundary="1Nib/XD667WHuWj6" Content-Disposition: inline In-Reply-To: --1Nib/XD667WHuWj6 Content-Disposition: inline Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" The ROHM BD96801 "scalable PMIC" provides two physical IRQs. The ERRB handling can in many cases be omitted because it is used to inform fatal IRQs, which usually kill the power from the SOC. There may however be use-cases where the SOC has a 'back-up' emergency power source which allows some very short time of operation to try to gracefully shut down sensitive hardware. Furthermore, it is possible the processor controlling the PMIC is not powered by the PMIC. In such cases handling the ERRB IRQs may be beneficial. Add support for ERRB IRQs. Signed-off-by: Matti Vaittinen --- Revision history: New series (only ERRB addition) v1: - use devm allocation for regulator_res - use goto skip_errb instead of an if (errb) - constify immutable structs Old series (All BD96801 functionality + irqdomain and regmap changes) v2 =3D> v3: - No changes v1 =3D> v2: - New patch mfd: constify structs --- drivers/mfd/rohm-bd96801.c | 276 ++++++++++++++++++++++++++++++++----- 1 file changed, 241 insertions(+), 35 deletions(-) diff --git a/drivers/mfd/rohm-bd96801.c b/drivers/mfd/rohm-bd96801.c index 714f08ed544b..fff764ddbf2f 100644 --- a/drivers/mfd/rohm-bd96801.c +++ b/drivers/mfd/rohm-bd96801.c @@ -5,13 +5,9 @@ * ROHM BD96801 PMIC driver * * This version of the "BD86801 scalable PMIC"'s driver supports only very - * basic set of the PMIC features. Most notably, there is no support for - * the ERRB interrupt and the configurations which should be done when the - * PMIC is in STBY mode. - * - * Supporting the ERRB interrupt would require dropping the regmap-IRQ - * usage or working around (or accepting a presense of) a naming conflict - * in debugFS IRQs. + * basic set of the PMIC features. + * Most notably, there is no support for the configurations which should + * be done when the PMIC is in STBY mode. * * Being able to reliably do the configurations like changing the * regulator safety limits (like limits for the over/under -voltages, over @@ -23,16 +19,14 @@ * be the need to configure these safety limits. Hence it's not simple to * come up with a generic solution. * - * Users who require the ERRB handling and STBY state configurations can - * have a look at the original RFC: + * Users who require the STBY state configurations can have a look at the + * original RFC: * https://lore.kernel.org/all/cover.1712920132.git.mazziesaccount@gmail.c= om/ - * which implements a workaround to debugFS naming conflict and some of - * the safety limit configurations - but leaves the state change handling - * and synchronization to be implemented. + * which implements some of the safety limit configurations - but leaves t= he + * state change handling and synchronization to be implemented. * * It would be great to hear (and receive a patch!) if you implement the - * STBY configuration support or a proper fix to the debugFS naming - * conflict in your downstream driver ;) + * STBY configuration support or a proper fix in your downstream driver ;) */ =20 #include @@ -46,6 +40,64 @@ #include #include =20 +static const struct resource regulator_errb_irqs[] =3D { + DEFINE_RES_IRQ_NAMED(BD96801_OTP_ERR_STAT, "bd96801-otp-err"), + DEFINE_RES_IRQ_NAMED(BD96801_DBIST_ERR_STAT, "bd96801-dbist-err"), + DEFINE_RES_IRQ_NAMED(BD96801_EEP_ERR_STAT, "bd96801-eep-err"), + DEFINE_RES_IRQ_NAMED(BD96801_ABIST_ERR_STAT, "bd96801-abist-err"), + DEFINE_RES_IRQ_NAMED(BD96801_PRSTB_ERR_STAT, "bd96801-prstb-err"), + DEFINE_RES_IRQ_NAMED(BD96801_DRMOS1_ERR_STAT, "bd96801-drmoserr1"), + DEFINE_RES_IRQ_NAMED(BD96801_DRMOS2_ERR_STAT, "bd96801-drmoserr2"), + DEFINE_RES_IRQ_NAMED(BD96801_SLAVE_ERR_STAT, "bd96801-slave-err"), + DEFINE_RES_IRQ_NAMED(BD96801_VREF_ERR_STAT, "bd96801-vref-err"), + DEFINE_RES_IRQ_NAMED(BD96801_TSD_ERR_STAT, "bd96801-tsd"), + DEFINE_RES_IRQ_NAMED(BD96801_UVLO_ERR_STAT, "bd96801-uvlo-err"), + DEFINE_RES_IRQ_NAMED(BD96801_OVLO_ERR_STAT, "bd96801-ovlo-err"), + DEFINE_RES_IRQ_NAMED(BD96801_OSC_ERR_STAT, "bd96801-osc-err"), + DEFINE_RES_IRQ_NAMED(BD96801_PON_ERR_STAT, "bd96801-pon-err"), + DEFINE_RES_IRQ_NAMED(BD96801_POFF_ERR_STAT, "bd96801-poff-err"), + DEFINE_RES_IRQ_NAMED(BD96801_CMD_SHDN_ERR_STAT, "bd96801-cmd-shdn-err"), + + DEFINE_RES_IRQ_NAMED(BD96801_INT_PRSTB_WDT_ERR, "bd96801-prstb-wdt-err"), + DEFINE_RES_IRQ_NAMED(BD96801_INT_CHIP_IF_ERR, "bd96801-chip-if-err"), + DEFINE_RES_IRQ_NAMED(BD96801_INT_SHDN_ERR_STAT, "bd96801-int-shdn-err"), + + DEFINE_RES_IRQ_NAMED(BD96801_BUCK1_PVIN_ERR_STAT, "bd96801-buck1-pvin-err= "), + DEFINE_RES_IRQ_NAMED(BD96801_BUCK1_OVP_ERR_STAT, "bd96801-buck1-ovp-err"), + DEFINE_RES_IRQ_NAMED(BD96801_BUCK1_UVP_ERR_STAT, "bd96801-buck1-uvp-err"), + DEFINE_RES_IRQ_NAMED(BD96801_BUCK1_SHDN_ERR_STAT, "bd96801-buck1-shdn-err= "), + + DEFINE_RES_IRQ_NAMED(BD96801_BUCK2_PVIN_ERR_STAT, "bd96801-buck2-pvin-err= "), + DEFINE_RES_IRQ_NAMED(BD96801_BUCK2_OVP_ERR_STAT, "bd96801-buck2-ovp-err"), + DEFINE_RES_IRQ_NAMED(BD96801_BUCK2_UVP_ERR_STAT, "bd96801-buck2-uvp-err"), + DEFINE_RES_IRQ_NAMED(BD96801_BUCK2_SHDN_ERR_STAT, "bd96801-buck2-shdn-err= "), + + DEFINE_RES_IRQ_NAMED(BD96801_BUCK3_PVIN_ERR_STAT, "bd96801-buck3-pvin-err= "), + DEFINE_RES_IRQ_NAMED(BD96801_BUCK3_OVP_ERR_STAT, "bd96801-buck3-ovp-err"), + DEFINE_RES_IRQ_NAMED(BD96801_BUCK3_UVP_ERR_STAT, "bd96801-buck3-uvp-err"), + DEFINE_RES_IRQ_NAMED(BD96801_BUCK3_SHDN_ERR_STAT, "bd96801-buck3-shdn-err= "), + + DEFINE_RES_IRQ_NAMED(BD96801_BUCK4_PVIN_ERR_STAT, "bd96801-buck4-pvin-err= "), + DEFINE_RES_IRQ_NAMED(BD96801_BUCK4_OVP_ERR_STAT, "bd96801-buck4-ovp-err"), + DEFINE_RES_IRQ_NAMED(BD96801_BUCK4_UVP_ERR_STAT, "bd96801-buck4-uvp-err"), + DEFINE_RES_IRQ_NAMED(BD96801_BUCK4_SHDN_ERR_STAT, "bd96801-buck4-shdn-err= "), + + DEFINE_RES_IRQ_NAMED(BD96801_LDO5_PVIN_ERR_STAT, "bd96801-ldo5-pvin-err"), + DEFINE_RES_IRQ_NAMED(BD96801_LDO5_OVP_ERR_STAT, "bd96801-ldo5-ovp-err"), + DEFINE_RES_IRQ_NAMED(BD96801_LDO5_UVP_ERR_STAT, "bd96801-ldo5-uvp-err"), + DEFINE_RES_IRQ_NAMED(BD96801_LDO5_SHDN_ERR_STAT, "bd96801-ldo5-shdn-err"), + + DEFINE_RES_IRQ_NAMED(BD96801_LDO6_PVIN_ERR_STAT, "bd96801-ldo6-pvin-err"), + DEFINE_RES_IRQ_NAMED(BD96801_LDO6_OVP_ERR_STAT, "bd96801-ldo6-ovp-err"), + DEFINE_RES_IRQ_NAMED(BD96801_LDO6_UVP_ERR_STAT, "bd96801-ldo6-uvp-err"), + DEFINE_RES_IRQ_NAMED(BD96801_LDO6_SHDN_ERR_STAT, "bd96801-ldo6-shdn-err"), + + DEFINE_RES_IRQ_NAMED(BD96801_LDO7_PVIN_ERR_STAT, "bd96801-ldo7-pvin-err"), + DEFINE_RES_IRQ_NAMED(BD96801_LDO7_OVP_ERR_STAT, "bd96801-ldo7-ovp-err"), + DEFINE_RES_IRQ_NAMED(BD96801_LDO7_UVP_ERR_STAT, "bd96801-ldo7-uvp-err"), + DEFINE_RES_IRQ_NAMED(BD96801_LDO7_SHDN_ERR_STAT, "bd96801-ldo7-shdn-err"), +}; + static const struct resource regulator_intb_irqs[] =3D { DEFINE_RES_IRQ_NAMED(BD96801_TW_STAT, "bd96801-core-thermal"), =20 @@ -90,20 +142,14 @@ static const struct resource regulator_intb_irqs[] =3D= { DEFINE_RES_IRQ_NAMED(BD96801_LDO7_UVD_STAT, "bd96801-ldo7-undervolt"), }; =20 -static const struct resource wdg_intb_irqs[] =3D { - DEFINE_RES_IRQ_NAMED(BD96801_WDT_ERR_STAT, "bd96801-wdg"), +enum { + WDG_CELL =3D 0, + REGULATOR_CELL, }; =20 static struct mfd_cell bd96801_cells[] =3D { - { - .name =3D "bd96801-wdt", - .resources =3D wdg_intb_irqs, - .num_resources =3D ARRAY_SIZE(wdg_intb_irqs), - }, { - .name =3D "bd96801-regulator", - .resources =3D regulator_intb_irqs, - .num_resources =3D ARRAY_SIZE(regulator_intb_irqs), - }, + [WDG_CELL] =3D { .name =3D "bd96801-wdt", }, + [REGULATOR_CELL] =3D { .name =3D "bd96801-regulator", }, }; =20 static const struct regmap_range bd96801_volatile_ranges[] =3D { @@ -128,6 +174,91 @@ static const struct regmap_access_table volatile_regs = =3D { .n_yes_ranges =3D ARRAY_SIZE(bd96801_volatile_ranges), }; =20 +/* + * For ERRB we need main register bit mapping as bit(0) indicates active I= RQ + * in one of the first 3 sub IRQ registers, For INTB we can use default 1 = to 1 + * mapping. + */ +static unsigned int bit0_offsets[] =3D {0, 1, 2}; /* System stat, 3 regist= ers */ +static unsigned int bit1_offsets[] =3D {3}; /* Buck 1 stat */ +static unsigned int bit2_offsets[] =3D {4}; /* Buck 2 stat */ +static unsigned int bit3_offsets[] =3D {5}; /* Buck 3 stat */ +static unsigned int bit4_offsets[] =3D {6}; /* Buck 4 stat */ +static unsigned int bit5_offsets[] =3D {7}; /* LDO 5 stat */ +static unsigned int bit6_offsets[] =3D {8}; /* LDO 6 stat */ +static unsigned int bit7_offsets[] =3D {9}; /* LDO 7 stat */ + +static const struct regmap_irq_sub_irq_map errb_sub_irq_offsets[] =3D { + REGMAP_IRQ_MAIN_REG_OFFSET(bit0_offsets), + REGMAP_IRQ_MAIN_REG_OFFSET(bit1_offsets), + REGMAP_IRQ_MAIN_REG_OFFSET(bit2_offsets), + REGMAP_IRQ_MAIN_REG_OFFSET(bit3_offsets), + REGMAP_IRQ_MAIN_REG_OFFSET(bit4_offsets), + REGMAP_IRQ_MAIN_REG_OFFSET(bit5_offsets), + REGMAP_IRQ_MAIN_REG_OFFSET(bit6_offsets), + REGMAP_IRQ_MAIN_REG_OFFSET(bit7_offsets), +}; + +static const struct regmap_irq bd96801_errb_irqs[] =3D { + /* Reg 0x52 Fatal ERRB1 */ + REGMAP_IRQ_REG(BD96801_OTP_ERR_STAT, 0, BD96801_OTP_ERR_MASK), + REGMAP_IRQ_REG(BD96801_DBIST_ERR_STAT, 0, BD96801_DBIST_ERR_MASK), + REGMAP_IRQ_REG(BD96801_EEP_ERR_STAT, 0, BD96801_EEP_ERR_MASK), + REGMAP_IRQ_REG(BD96801_ABIST_ERR_STAT, 0, BD96801_ABIST_ERR_MASK), + REGMAP_IRQ_REG(BD96801_PRSTB_ERR_STAT, 0, BD96801_PRSTB_ERR_MASK), + REGMAP_IRQ_REG(BD96801_DRMOS1_ERR_STAT, 0, BD96801_DRMOS1_ERR_MASK), + REGMAP_IRQ_REG(BD96801_DRMOS2_ERR_STAT, 0, BD96801_DRMOS2_ERR_MASK), + REGMAP_IRQ_REG(BD96801_SLAVE_ERR_STAT, 0, BD96801_SLAVE_ERR_MASK), + /* 0x53 Fatal ERRB2 */ + REGMAP_IRQ_REG(BD96801_VREF_ERR_STAT, 1, BD96801_VREF_ERR_MASK), + REGMAP_IRQ_REG(BD96801_TSD_ERR_STAT, 1, BD96801_TSD_ERR_MASK), + REGMAP_IRQ_REG(BD96801_UVLO_ERR_STAT, 1, BD96801_UVLO_ERR_MASK), + REGMAP_IRQ_REG(BD96801_OVLO_ERR_STAT, 1, BD96801_OVLO_ERR_MASK), + REGMAP_IRQ_REG(BD96801_OSC_ERR_STAT, 1, BD96801_OSC_ERR_MASK), + REGMAP_IRQ_REG(BD96801_PON_ERR_STAT, 1, BD96801_PON_ERR_MASK), + REGMAP_IRQ_REG(BD96801_POFF_ERR_STAT, 1, BD96801_POFF_ERR_MASK), + REGMAP_IRQ_REG(BD96801_CMD_SHDN_ERR_STAT, 1, BD96801_CMD_SHDN_ERR_MASK), + /* 0x54 Fatal INTB shadowed to ERRB */ + REGMAP_IRQ_REG(BD96801_INT_PRSTB_WDT_ERR, 2, BD96801_INT_PRSTB_WDT_ERR_MA= SK), + REGMAP_IRQ_REG(BD96801_INT_CHIP_IF_ERR, 2, BD96801_INT_CHIP_IF_ERR_MASK), + REGMAP_IRQ_REG(BD96801_INT_SHDN_ERR_STAT, 2, BD96801_INT_SHDN_ERR_MASK), + /* Reg 0x55 BUCK1 ERR IRQs */ + REGMAP_IRQ_REG(BD96801_BUCK1_PVIN_ERR_STAT, 3, BD96801_OUT_PVIN_ERR_MASK), + REGMAP_IRQ_REG(BD96801_BUCK1_OVP_ERR_STAT, 3, BD96801_OUT_OVP_ERR_MASK), + REGMAP_IRQ_REG(BD96801_BUCK1_UVP_ERR_STAT, 3, BD96801_OUT_UVP_ERR_MASK), + REGMAP_IRQ_REG(BD96801_BUCK1_SHDN_ERR_STAT, 3, BD96801_OUT_SHDN_ERR_MASK), + /* Reg 0x56 BUCK2 ERR IRQs */ + REGMAP_IRQ_REG(BD96801_BUCK2_PVIN_ERR_STAT, 4, BD96801_OUT_PVIN_ERR_MASK), + REGMAP_IRQ_REG(BD96801_BUCK2_OVP_ERR_STAT, 4, BD96801_OUT_OVP_ERR_MASK), + REGMAP_IRQ_REG(BD96801_BUCK2_UVP_ERR_STAT, 4, BD96801_OUT_UVP_ERR_MASK), + REGMAP_IRQ_REG(BD96801_BUCK2_SHDN_ERR_STAT, 4, BD96801_OUT_SHDN_ERR_MASK), + /* Reg 0x57 BUCK3 ERR IRQs */ + REGMAP_IRQ_REG(BD96801_BUCK3_PVIN_ERR_STAT, 5, BD96801_OUT_PVIN_ERR_MASK), + REGMAP_IRQ_REG(BD96801_BUCK3_OVP_ERR_STAT, 5, BD96801_OUT_OVP_ERR_MASK), + REGMAP_IRQ_REG(BD96801_BUCK3_UVP_ERR_STAT, 5, BD96801_OUT_UVP_ERR_MASK), + REGMAP_IRQ_REG(BD96801_BUCK3_SHDN_ERR_STAT, 5, BD96801_OUT_SHDN_ERR_MASK), + /* Reg 0x58 BUCK4 ERR IRQs */ + REGMAP_IRQ_REG(BD96801_BUCK4_PVIN_ERR_STAT, 6, BD96801_OUT_PVIN_ERR_MASK), + REGMAP_IRQ_REG(BD96801_BUCK4_OVP_ERR_STAT, 6, BD96801_OUT_OVP_ERR_MASK), + REGMAP_IRQ_REG(BD96801_BUCK4_UVP_ERR_STAT, 6, BD96801_OUT_UVP_ERR_MASK), + REGMAP_IRQ_REG(BD96801_BUCK4_SHDN_ERR_STAT, 6, BD96801_OUT_SHDN_ERR_MASK), + /* Reg 0x59 LDO5 ERR IRQs */ + REGMAP_IRQ_REG(BD96801_LDO5_PVIN_ERR_STAT, 7, BD96801_OUT_PVIN_ERR_MASK), + REGMAP_IRQ_REG(BD96801_LDO5_OVP_ERR_STAT, 7, BD96801_OUT_OVP_ERR_MASK), + REGMAP_IRQ_REG(BD96801_LDO5_UVP_ERR_STAT, 7, BD96801_OUT_UVP_ERR_MASK), + REGMAP_IRQ_REG(BD96801_LDO5_SHDN_ERR_STAT, 7, BD96801_OUT_SHDN_ERR_MASK), + /* Reg 0x5a LDO6 ERR IRQs */ + REGMAP_IRQ_REG(BD96801_LDO6_PVIN_ERR_STAT, 8, BD96801_OUT_PVIN_ERR_MASK), + REGMAP_IRQ_REG(BD96801_LDO6_OVP_ERR_STAT, 8, BD96801_OUT_OVP_ERR_MASK), + REGMAP_IRQ_REG(BD96801_LDO6_UVP_ERR_STAT, 8, BD96801_OUT_UVP_ERR_MASK), + REGMAP_IRQ_REG(BD96801_LDO6_SHDN_ERR_STAT, 8, BD96801_OUT_SHDN_ERR_MASK), + /* Reg 0x5b LDO7 ERR IRQs */ + REGMAP_IRQ_REG(BD96801_LDO7_PVIN_ERR_STAT, 9, BD96801_OUT_PVIN_ERR_MASK), + REGMAP_IRQ_REG(BD96801_LDO7_OVP_ERR_STAT, 9, BD96801_OUT_OVP_ERR_MASK), + REGMAP_IRQ_REG(BD96801_LDO7_UVP_ERR_STAT, 9, BD96801_OUT_UVP_ERR_MASK), + REGMAP_IRQ_REG(BD96801_LDO7_SHDN_ERR_STAT, 9, BD96801_OUT_SHDN_ERR_MASK), +}; + static const struct regmap_irq bd96801_intb_irqs[] =3D { /* STATUS SYSTEM INTB */ REGMAP_IRQ_REG(BD96801_TW_STAT, 0, BD96801_TW_STAT_MASK), @@ -176,8 +307,25 @@ static const struct regmap_irq bd96801_intb_irqs[] =3D= { REGMAP_IRQ_REG(BD96801_LDO7_UVD_STAT, 7, BD96801_LDO_UVD_STAT_MASK), }; =20 -static struct regmap_irq_chip bd96801_irq_chip_intb =3D { +static const struct regmap_irq_chip bd96801_irq_chip_errb =3D { + .name =3D "bd96801-irq-errb", + .domain_suffix =3D "errb", + .main_status =3D BD96801_REG_INT_MAIN, + .num_main_regs =3D 1, + .irqs =3D &bd96801_errb_irqs[0], + .num_irqs =3D ARRAY_SIZE(bd96801_errb_irqs), + .status_base =3D BD96801_REG_INT_SYS_ERRB1, + .mask_base =3D BD96801_REG_MASK_SYS_ERRB, + .ack_base =3D BD96801_REG_INT_SYS_ERRB1, + .init_ack_masked =3D true, + .num_regs =3D 10, + .irq_reg_stride =3D 1, + .sub_reg_offsets =3D &errb_sub_irq_offsets[0], +}; + +static const struct regmap_irq_chip bd96801_irq_chip_intb =3D { .name =3D "bd96801-irq-intb", + .domain_suffix =3D "intb", .main_status =3D BD96801_REG_INT_MAIN, .num_main_regs =3D 1, .irqs =3D &bd96801_intb_irqs[0], @@ -199,11 +347,14 @@ static const struct regmap_config bd96801_regmap_conf= ig =3D { =20 static int bd96801_i2c_probe(struct i2c_client *i2c) { - struct regmap_irq_chip_data *intb_irq_data; + int i, ret, intb_irq, errb_irq, num_regu_irqs, num_intb, num_errb =3D 0; + int wdg_irq_no; + struct regmap_irq_chip_data *intb_irq_data, *errb_irq_data; + struct irq_domain *intb_domain, *errb_domain; + struct resource wdg_irq; const struct fwnode_handle *fwnode; - struct irq_domain *intb_domain; + struct resource *regulator_res; struct regmap *regmap; - int ret, intb_irq; =20 fwnode =3D dev_fwnode(&i2c->dev); if (!fwnode) @@ -213,6 +364,23 @@ static int bd96801_i2c_probe(struct i2c_client *i2c) if (intb_irq < 0) return dev_err_probe(&i2c->dev, intb_irq, "INTB IRQ not configured\n"); =20 + num_intb =3D ARRAY_SIZE(regulator_intb_irqs); + + /* ERRB may be omitted if processor is powered by the PMIC */ + errb_irq =3D fwnode_irq_get_byname(fwnode, "errb"); + if (errb_irq < 0) + errb_irq =3D 0; + + if (errb_irq) + num_errb =3D ARRAY_SIZE(regulator_errb_irqs); + + num_regu_irqs =3D num_intb + num_errb; + + regulator_res =3D devm_kcalloc(&i2c->dev, num_regu_irqs, + sizeof(*regulator_res), GFP_KERNEL); + if (!regulator_res) + return -ENOMEM; + regmap =3D devm_regmap_init_i2c(i2c, &bd96801_regmap_config); if (IS_ERR(regmap)) return dev_err_probe(&i2c->dev, PTR_ERR(regmap), @@ -226,16 +394,54 @@ static int bd96801_i2c_probe(struct i2c_client *i2c) IRQF_ONESHOT, 0, &bd96801_irq_chip_intb, &intb_irq_data); if (ret) - return dev_err_probe(&i2c->dev, ret, "Failed to add INTB IRQ chip\n"); + return dev_err_probe(&i2c->dev, ret, "Failed to add INTB irq_chip\n"); =20 intb_domain =3D regmap_irq_get_domain(intb_irq_data); =20 - ret =3D devm_mfd_add_devices(&i2c->dev, PLATFORM_DEVID_AUTO, - bd96801_cells, - ARRAY_SIZE(bd96801_cells), NULL, 0, - intb_domain); + /* + * MFD core code is built to handle only one IRQ domain. BD96801 + * has two domains so we do IRQ mapping here and provide the + * already mapped IRQ numbers to sub-devices. + */ + for (i =3D 0; i < num_intb; i++) { + struct resource *res =3D ®ulator_res[i]; + + *res =3D regulator_intb_irqs[i]; + res->start =3D res->end =3D irq_create_mapping(intb_domain, + res->start); + } + + wdg_irq_no =3D irq_create_mapping(intb_domain, BD96801_WDT_ERR_STAT); + wdg_irq =3D DEFINE_RES_IRQ_NAMED(wdg_irq_no, "bd96801-wdg"); + bd96801_cells[WDG_CELL].resources =3D &wdg_irq; + bd96801_cells[WDG_CELL].num_resources =3D 1; + + if (!num_errb) + goto skip_errb; + + ret =3D devm_regmap_add_irq_chip(&i2c->dev, regmap, errb_irq, IRQF_ONESHO= T, + 0, &bd96801_irq_chip_errb, &errb_irq_data); + if (ret) + return dev_err_probe(&i2c->dev, ret, + "Failed to add ERRB (%d) irq_chip\n", errb_irq); + + errb_domain =3D regmap_irq_get_domain(errb_irq_data); + + for (i =3D 0; i < num_errb; i++) { + struct resource *res =3D ®ulator_res[num_intb + i]; + + *res =3D regulator_errb_irqs[i]; + res->start =3D res->end =3D irq_create_mapping(errb_domain, res->start); + } + +skip_errb: + bd96801_cells[REGULATOR_CELL].resources =3D regulator_res; + bd96801_cells[REGULATOR_CELL].num_resources =3D num_regu_irqs; + + ret =3D devm_mfd_add_devices(&i2c->dev, PLATFORM_DEVID_AUTO, bd96801_cell= s, + ARRAY_SIZE(bd96801_cells), NULL, 0, NULL); if (ret) - dev_err(&i2c->dev, "Failed to create subdevices\n"); + dev_err_probe(&i2c->dev, ret, "Failed to create subdevices\n"); =20 return ret; } --=20 2.45.2 --=20 Matti Vaittinen, Linux device drivers ROHM Semiconductors, Finland SWDC Kiviharjunlenkki 1E 90220 OULU FINLAND ~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~ Simon says - in Latin please. ~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~ Thanks to Simon Glass for the translation =3D]=20 --1Nib/XD667WHuWj6 Content-Type: application/pgp-signature; name="signature.asc" -----BEGIN PGP SIGNATURE----- iQEzBAEBCAAdFiEEIx+f8wZb28fLKEhTeFA3/03aocUFAmbMOXUACgkQeFA3/03a ocXrmgf/XsOMzAOr8A581ioiIQNg0N1jzqh6CefRu71q81JSP+XhapvOw4HwAL4X qoAzRE1i6bvuXeGbOR8WgzAhHcGNjyE3++xP8VajcVpaNg0T08Y76D85dkiJTbpv UvPspbk3VPkSvQdDdVh/TveGg80dKqcmUQurVZZaM3k3+EpiFFcUsYx8DQaavJ6E pMEr2icL2pF6auRNDb9p9ogAF+rBEh6DJBAIpRUVAt7reqc21LdCrypJXWDTb9CP nTNbHe5FDxBQbm1yqWJDe7JPwsC7Qm52nqq09Nkcg8ap1XJGb3vdarhbbd5RtNLk bxbb9oRf/0VvQldY1l2w13UGcSgmWg== =uUe5 -----END PGP SIGNATURE----- --1Nib/XD667WHuWj6--