From nobody Mon Sep 28 15:34:34 2026 Received: from mx0a-00128a01.pphosted.com (mx0a-00128a01.pphosted.com [148.163.135.77]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 223C43B5F63; Thu, 20 Aug 2026 07:09:27 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.163.135.77 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787209769; cv=none; b=Pw8guK8IcE6/wHvxGTTKbTNo5S4scIqb2P+Yz0ysqKr/Kuj4LWg0u4+iDcYSIr0LJRWicuSCaHn7HMXLu0nzS7EeT35AxqeaE2BlaySIO8NbyRkHtQ6AV/eSaDFfB90E/If6+NbsfzBgDQJOzcuqUsTGJbnlICiCHa6WlD+G4Aw= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787209769; c=relaxed/simple; bh=ZKN1B2gZYBwuyNnxocxDDBrNCih2O5jweGLmrMvotJQ=; h=From:Date:Subject:MIME-Version:Content-Type:Message-ID:References: In-Reply-To:To:CC; b=rOtFMeXjsmp8dR+9VXruJS/W8y8n5bHsipm7LdKn8KxQQ1aG+L0OWaJvNszAq1ylfhNA6VpIulvNrmknEiCJFVIy7wpkRrfeKV+zSrYycpPHq75HOzNGwxMM8jWxsDYUcID/+G9AFAsF8YShyDEsso+eE6pW1z9S22z7ai+IFY4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=analog.com; spf=pass smtp.mailfrom=analog.com; dkim=pass (2048-bit key) header.d=analog.com header.i=@analog.com header.b=aPxtgK2n; arc=none smtp.client-ip=148.163.135.77 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=analog.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=analog.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=analog.com header.i=@analog.com header.b="aPxtgK2n" Received: from pps.filterd (m0516787.ppops.net [127.0.0.1]) by mx0a-00128a01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 67K414g43166229; Thu, 20 Aug 2026 03:08:53 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=analog.com; h=cc :content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=DKIM; bh=c8Rp8 EOzkyMI8boZQTY40lparKG2slm87g2a/+q88n0=; b=aPxtgK2nk0GxLk4aMJIL1 twcYACcEaPq1VLxioW2IAjxA7xjxcXVlJySRPqnDZr+k1oasKlgQhlR54HIzyV+v VvmWoH73qBBop9vL2wwoWb+GINlLfydY4KnQ1EWonq26K2JlD9QnjTuSS3rE0DSa J7mY2OecBrmLuR6bLhZZwGhMb67bq3Goc4tdP5i8TezIqP848Plok2G4xVi0Qln+ FoxogNBLr6tzHhtUrp4xwR4f7xBQtcSAqyeDHX4a+I1igKKnMwKtYYmtLmY9W+zO agiZitEoz9NlqvOEMzl+UY/wEAam32W5lcgelyL3X/4xIUF0rOw4RhLcvwQ9m21y g== Received: from nwd2mta4.analog.com ([137.71.173.58]) by mx0a-00128a01.pphosted.com (PPS) with ESMTPS id 4g4yfbh598-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 20 Aug 2026 03:08:52 -0400 (EDT) Received: from ASHBMBX8.ad.analog.com (ASHBMBX8.ad.analog.com [10.64.17.5]) by nwd2mta4.analog.com (8.14.7/8.14.7) with ESMTP id 67K78pjG018792 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 20 Aug 2026 03:08:51 -0400 Received: from ASHBCASHYB4.ad.analog.com (10.64.17.132) by ASHBMBX8.ad.analog.com (10.64.17.5) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1748.37; Thu, 20 Aug 2026 03:08:51 -0400 Received: from ASHBMBX9.ad.analog.com (10.64.17.10) by ASHBCASHYB4.ad.analog.com (10.64.17.132) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1748.37; Thu, 20 Aug 2026 03:08:51 -0400 Received: from zeus.spd.analog.com (10.66.68.11) by ashbmbx9.ad.analog.com (10.64.17.10) with Microsoft SMTP Server id 15.2.1748.37 via Frontend Transport; Thu, 20 Aug 2026 03:08:51 -0400 Received: from HYB-e1y2fvUQ3cx.ad.analog.com (HYB-e1y2fvUQ3cx.ad.analog.com [10.44.3.68]) by zeus.spd.analog.com (8.15.1/8.15.1) with ESMTP id 67K78OkZ003019; Thu, 20 Aug 2026 03:08:45 -0400 From: Janani Sunil Date: Thu, 20 Aug 2026 09:08:21 +0200 Subject: [PATCH v9 1/3] spi: dt-bindings: Add spi-device-addr peripheral property Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-ID: <20260820-ad5529r-driver-v9-1-ba62e0b2a816@analog.com> References: <20260820-ad5529r-driver-v9-0-ba62e0b2a816@analog.com> In-Reply-To: <20260820-ad5529r-driver-v9-0-ba62e0b2a816@analog.com> To: Lars-Peter Clausen , Michael Hennerich , Jonathan Cameron , "David Lechner" , =?utf-8?q?Nuno_S=C3=A1?= , Andy Shevchenko , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Philipp Zabel , "Jonathan Corbet" , Shuah Khan , Mark Brown , Marius Cristea , "Marcus Folkesson" , Kent Gustavsson , Conor Dooley , Daire McNamara , Paul Walmsley , "Palmer Dabbelt" , Albert Ou , "Alexandre Ghiti" CC: , , , , Janani Sunil , , Kent Gustavsson , , Janani Sunil X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1787209704; l=1442; i=janani.sunil@analog.com; s=20260507; h=from:subject:message-id; bh=ZKN1B2gZYBwuyNnxocxDDBrNCih2O5jweGLmrMvotJQ=; b=enKpVGYoGz7FY2BNinLZVvp/ftfLGXdjoVVghGU86biCNk+K86Dq5QdYpSEhzqyG0GDoVb3VU M2tCLkxlw9JDetpeuk/wD63J98wnFj8j1BNe8/5AXwtZqS6I5jC/F15 X-Developer-Key: i=janani.sunil@analog.com; a=ed25519; pk=e25MyjRLPY3RWrYm/LrJ+/+t1MZJUbkgIW5CZg+g+hA= X-ADIRuleOP-NewSCL: Rule Triggered X-Proofpoint-ORIG-GUID: aYdxdomK0ogdalLcYWCfNU-VbXALsyQF X-Authority-Analysis: v=2.4 cv=KbTidwYD c=1 sm=1 tr=0 ts=6a86a804 cx=c_pps a=3WNzaoukacrqR9RwcOSAdA==:117 a=3WNzaoukacrqR9RwcOSAdA==:17 a=IkcTkHD0fZMA:10 a=Sv0fKeRqtYgA:10 a=VkNPw1HP01LnGYTKEx00:22 a=0sLvza09kfJOxVLZPwjg:22 a=OmVn7CZJonkx5R5zMQLL:22 a=gAnH3GRIAAAA:8 a=XYAwZIGsAAAA:8 a=pGLkceISAAAA:8 a=p7DZuduEnTu05McJuzUA:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=E8ToXWR_bxluHZ7gmE-Z:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODIwMDA1MCBTYWx0ZWRfXzNFA5vxlonkc MsMm/7/4aQyjMBC6zF54mwdH9QhK5fHVYAdftQYs0jOmHD/kApRbTT7pE+fWgN7o64ZQWYvdOD2 6835JJ6YH87/cJoPB+OLukAf9dPqRh1DCLXkCpD8zC4CuHkCxxjFSl6mumVxngR76oR/vWHBAtp G8Nb5HSuUaqtDC3U2bAOZ9mK22cCLF9OgLwr9bcWLKf9MpsCGyji/N8fCwGxfvHclghBluXQCkW nioZHYEnNzoZl+tGpQWPYma+FTImE6J5d/WAKEBjSSzobhSkfHvKlzObU2LUNZWue0BM6jFPuW0 7K8JldOb604BECo7RPniqD3e//BMxXmeB46rts6GL26e0q1LScN01pAu44bzuUzTmV3cIHqd9Ea tj3nM2O88IPdHCYwiU6NKNpAegwiSZXc7HEPInDDvx4Ym/ZT+DZUFTujTWKQ/zUayTunFUD3KKy xD9Ho8yYAWlcfgUp3AQ== X-Proofpoint-Spam-Info: AW1haW4tMjYwODIwMDA1MCBTYWx0ZWRfX+rLpp9Jfxnwp W17a3XTdEC5y94YmECvUwLW3SW7YrImxs1bsvVuYiPuReIoNC5fP1W4ov+1K0aP376xecd/Hqf1 mwci1/ZE1yQZD/5U5nHw4ZZwwRY9S5P3fJ7wi8VV9Yn4OQSb05pU X-Proofpoint-GUID: aYdxdomK0ogdalLcYWCfNU-VbXALsyQF X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-08-19_06,2026-08-19_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 priorityscore=1501 spamscore=0 phishscore=0 bulkscore=0 suspectscore=0 lowpriorityscore=0 clxscore=1015 adultscore=0 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608200050 Some SPI devices support sharing a single chip select across multiple physical chips by encoding a device address in the SPI frame itself. Add the generic spi-device-addr property for describing these hardware addresses. The property is placed on the SPI peripheral node and may contain multiple addresses. Acked-by: Nuno S=C3=A1 Reviewed-by: Conor Dooley Reviewed-by: Marcus Folkesson Signed-off-by: Janani Sunil --- Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/Documentation/devicetree/bindings/spi/spi-peripheral-props.yam= l b/Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml index 880a9f624566..4894196c8f9c 100644 --- a/Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml +++ b/Documentation/devicetree/bindings/spi/spi-peripheral-props.yaml @@ -142,6 +142,13 @@ properties: minItems: 2 maxItems: 4 =20 + spi-device-addr: + $ref: /schemas/types.yaml#/definitions/uint32-array + description: + Device addresses used when multiple peripherals share a single chip + select. The array allows one logical peripheral to comprise multiple + physical devices, with one address per physical device. + st,spi-midi-ns: deprecated: true description: | --=20 2.43.0 From nobody Mon Sep 28 15:34:34 2026 Received: from mx0b-00128a01.pphosted.com (mx0a-00128a01.pphosted.com [148.163.135.77]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A38933BB9EB; Thu, 20 Aug 2026 07:09:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.163.135.77 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787209774; cv=none; b=ZlQr85Tkkl9Kol6/XhIoGNGUBtD73Wne0hyqaIPdnVFwzrUzuatJtToWXHnyEFxOymq5ROOXj5bTg2fPk3RNvGTcEwj6Al38wRU3Po0QgecGIXRo5O4GNlROwT+ev0uutZ1zCgm7K9REzgVjXFWbhDHRpjPJzMLi/4eK9dC5ZLQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787209774; c=relaxed/simple; bh=MXKdOZpCM1FPMB1cHTo/QJDSTNOf9pX3eF4RY9JI/uo=; h=From:Date:Subject:MIME-Version:Content-Type:Message-ID:References: In-Reply-To:To:CC; b=deWpsw1JaXvjHkjTsNSPZNvi0gIck7OXKyrwzW9yvUdO3shCzwtSKp80QAfbiB2u5bGIbg0KlDhQDlWZ2k3bb+6z4Wh1SdSiv05nyba1M2kacCSQp/UbHP5HQjyBO9AK/99BBvwREb6vFLxDPZHIqu4QVhbMUC4nF1sIE3RZKL8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=analog.com; spf=pass smtp.mailfrom=analog.com; dkim=pass (2048-bit key) header.d=analog.com header.i=@analog.com header.b=T8UZQwrX; arc=none smtp.client-ip=148.163.135.77 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=analog.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=analog.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=analog.com header.i=@analog.com header.b="T8UZQwrX" Received: from pps.filterd (m0375855.ppops.net [127.0.0.1]) by mx0b-00128a01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 67K74fxE2445763; Thu, 20 Aug 2026 03:08:59 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=analog.com; h=cc :content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=DKIM; bh=3Ndwo EndMuJU2g6LD4o+Mb6YaN2eWHZ+1AKTMnboCCY=; b=T8UZQwrX15u0qM99zaXVa P+t+vsGzZx6OH1sp/D6L5qFTJEIqcpcOqt9p41pBlhIs//byAriEUzY0xd1nwhVB zZUzR2pRSNRp4MCNm7OLOFgHVt8zJfD2yfhwjZ2eGlr4u+ZeeneATMNy6P66P4uo 3mPy41IxjqaMojjndyS/ba2HF0gP2FKdacSvChSbRTEQGKXXIcIm3Y241wYG6V05 Nf27w6Ww8xQGpbiwRyBTcLUunK2ATjNv41JGKbJ7gU60a/+n9mHJBQ2MUfxM08C5 eRzT+4r2y1U4Slex0JpoyDbNdqnCW7lZGgdLtmg3y/A6yM/H2PHTaKoG+HzKsmVZ A== Received: from nwd2mta4.analog.com ([137.71.173.58]) by mx0b-00128a01.pphosted.com (PPS) with ESMTPS id 4g4yeps9y0-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 20 Aug 2026 03:08:58 -0400 (EDT) Received: from ASHBMBX8.ad.analog.com (ASHBMBX8.ad.analog.com [10.64.17.5]) by nwd2mta4.analog.com (8.14.7/8.14.7) with ESMTP id 67K78v5C018801 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 20 Aug 2026 03:08:57 -0400 Received: from ASHBCASHYB5.ad.analog.com (10.64.17.133) by ASHBMBX8.ad.analog.com (10.64.17.5) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1748.37; Thu, 20 Aug 2026 03:08:57 -0400 Received: from ASHBMBX9.ad.analog.com (10.64.17.10) by ASHBCASHYB5.ad.analog.com (10.64.17.133) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1748.37; Thu, 20 Aug 2026 03:08:57 -0400 Received: from zeus.spd.analog.com (10.66.68.11) by ashbmbx9.ad.analog.com (10.64.17.10) with Microsoft SMTP Server id 15.2.1748.37 via Frontend Transport; Thu, 20 Aug 2026 03:08:57 -0400 Received: from HYB-e1y2fvUQ3cx.ad.analog.com (HYB-e1y2fvUQ3cx.ad.analog.com [10.44.3.68]) by zeus.spd.analog.com (8.15.1/8.15.1) with ESMTP id 67K78Oka003019; Thu, 20 Aug 2026 03:08:48 -0400 From: Janani Sunil Date: Thu, 20 Aug 2026 09:08:22 +0200 Subject: [PATCH v9 2/3] dt-bindings: iio: dac: Add AD5529R Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-ID: <20260820-ad5529r-driver-v9-2-ba62e0b2a816@analog.com> References: <20260820-ad5529r-driver-v9-0-ba62e0b2a816@analog.com> In-Reply-To: <20260820-ad5529r-driver-v9-0-ba62e0b2a816@analog.com> To: Lars-Peter Clausen , Michael Hennerich , Jonathan Cameron , "David Lechner" , =?utf-8?q?Nuno_S=C3=A1?= , Andy Shevchenko , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Philipp Zabel , "Jonathan Corbet" , Shuah Khan , Mark Brown , Marius Cristea , "Marcus Folkesson" , Kent Gustavsson , Conor Dooley , Daire McNamara , Paul Walmsley , "Palmer Dabbelt" , Albert Ou , "Alexandre Ghiti" CC: , , , , Janani Sunil , , Kent Gustavsson , , Janani Sunil X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1787209704; l=8983; i=janani.sunil@analog.com; s=20260507; h=from:subject:message-id; bh=MXKdOZpCM1FPMB1cHTo/QJDSTNOf9pX3eF4RY9JI/uo=; b=a6HQJLJ9lRKqMmLJclZI29tKN3NIadsZc0V+8Yxw5JEQ7lcG2hwaw7xyBhlHUmxU1OfQylUu0 dvVHlcEnSKrCm3faci7eXJsN5KSjdikW6NnztRGD304xVzS7f+InRZQ X-Developer-Key: i=janani.sunil@analog.com; a=ed25519; pk=e25MyjRLPY3RWrYm/LrJ+/+t1MZJUbkgIW5CZg+g+hA= X-ADIRuleOP-NewSCL: Rule Triggered X-Proofpoint-ORIG-GUID: ImBfcdlNjYSuM1ReKO155h680FdCpb2v X-Proofpoint-Spam-Info: AW1haW4tMjYwODIwMDA1MCBTYWx0ZWRfXzrKagiBMvHkp 0rMOPDFZ/C2FPUvdzv3kjyaH1PD9FhCXUX1A2kgxhBZMCMaxKKHr6v8dQzSkiN6MGcppJuKTuP7 uEt+8FdEhhHSoQBBv8yDSNCu3KYf9tpDhcIeXwxiTKpQiA0D9/xI X-Authority-Analysis: v=2.4 cv=NLHlPU6g c=1 sm=1 tr=0 ts=6a86a80a cx=c_pps a=3WNzaoukacrqR9RwcOSAdA==:117 a=3WNzaoukacrqR9RwcOSAdA==:17 a=IkcTkHD0fZMA:10 a=Sv0fKeRqtYgA:10 a=VkNPw1HP01LnGYTKEx00:22 a=0sLvza09kfJOxVLZPwjg:22 a=N--XFCr6TIEc_64PeIT2:22 a=gEfo2CItAAAA:8 a=gAnH3GRIAAAA:8 a=XYAwZIGsAAAA:8 a=VwQbUJbxAAAA:8 a=w-5zq-aVFruw5tgyEi8A:9 a=3ZKOabzyN94A:10 a=QEXdDO2ut3YA:10 a=sptkURWiP4Gy88Gu7hUp:22 a=E8ToXWR_bxluHZ7gmE-Z:22 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODIwMDA1MCBTYWx0ZWRfX9gpUR2m59fhG S0999JoE8n4904AL7oZqVAC+h0Pz3Vmn3YCU9tDjOa9hUJHF3knAxu1byjmAcfHjkGnEerA9yEi U66F9MW0SqYfG8/ZohhHh6xEOxylQ6D+2SFfKX3zP0BObXqAaUjPgLc6xUnqs0eYD3mkhONfqOF 6uOnu/Q3ZjWwGBM37ACXbA6vJTZvjI8c97D3dxkscKzChPvvmY1y/DRns09WAyYoPsxNVgbY2z6 rBsPmDtmNhKZY9U/h8D20vUxt8GtkWJnT/NyYNxPlzab3M4IsI8AjHXhkvve8IWeuWIloNVzc7g p+4plasuxSL8++b6diARfp47WtktOOuDem74LWUcOC30pfXeACSVSlP2HocHe5/RfiqPNS4rlIM HJ1FV+m0LpfbtXX1Gg4HhbT/U2zkzubpot26HA08fm/ZclLHMuehA0JscrkMc5JGOqK+1ZsEvgL d8ZampFacCiFWiGSrJw== X-Proofpoint-GUID: ImBfcdlNjYSuM1ReKO155h680FdCpb2v X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-08-19_06,2026-08-19_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 adultscore=0 suspectscore=0 clxscore=1015 phishscore=0 lowpriorityscore=0 bulkscore=0 impostorscore=0 malwarescore=0 priorityscore=1501 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608200050 Devicetree bindings for AD5529R 16 channel 12/16 bit high voltage, buffered voltage output digital-to-analog converter (DAC) with an integrated precision reference. Reviewed-by: Conor Dooley Signed-off-by: Janani Sunil --- .../devicetree/bindings/iio/dac/adi,ad5529r.yaml | 254 +++++++++++++++++= ++++ MAINTAINERS | 7 + 2 files changed, 261 insertions(+) diff --git a/Documentation/devicetree/bindings/iio/dac/adi,ad5529r.yaml b/D= ocumentation/devicetree/bindings/iio/dac/adi,ad5529r.yaml new file mode 100644 index 000000000000..9c390d460e5f --- /dev/null +++ b/Documentation/devicetree/bindings/iio/dac/adi,ad5529r.yaml @@ -0,0 +1,254 @@ +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/iio/dac/adi,ad5529r.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Analog Devices AD5529R 16-Channel 12/16-bit High Voltage DAC + +maintainers: + - Janani Sunil + +description: | + The AD5529R is a 16-channel, 12-bit or 16-bit, high voltage, buffered vo= ltage + output digital-to-analog converter (DAC) with an integrated precision re= ference. + The device operates from unipolar and bipolar supplies. It is guaranteed + monotonic and has built-in rail-to-rail output buffers that can source or + sink up to 25mA. + + Specifications: + * 16 independent 12-bit or 16-bit DAC channels + * Independently programmable output ranges: 0V to 5V, 0V to 10V, 0V to 2= 0V, + 0V to 40V, =C2=B15V, =C2=B110V, =C2=B115V, and =C2=B120V + * The device supports SPI communication with Mode 0 and Mode 3. + * 4.096V precision reference, 12ppm/=C2=B0C maximum + * Built-in function generation: Toggle, Sinusoidal Dither, and Ramp wave= forms + * Multiplexer for output voltage, load current sense and die temperature + + Datasheet: https://www.analog.com/media/en/technical-documentation/data-= sheets/ad5529r.pdf + +properties: + compatible: + enum: + - adi,ad5529r-16 # 16-bit variant + - adi,ad5529r-12 # 12-bit variant + + reg: + maxItems: 1 + + spi-max-frequency: + maximum: 25000000 + description: + Maximum SPI frequency. The device supports SPI Mode 0 and Mode 3. + Read operations are limited to 25MHz maximum. + + reset-gpios: + maxItems: 1 + description: + GPIO connected to the RESET pin. Active low. When asserted low, + performs a power-on reset and initializes the device to its default = state. + + clear-gpios: + maxItems: 1 + description: + GPIO connected to the CLEAR pin. Active low. When asserted low, + clears all DAC data registers without affecting configuration settin= gs. + + interrupts: + maxItems: 1 + description: + Interrupt connected to the ALARM pin. Active low interrupt output + for overtemperature conditions, SPI CRC errors, and function complet= ion. + + pwms: + minItems: 1 + maxItems: 4 + description: + PWM signals connected to the TG0-TG3 toggle pins. Pulsing these pins + based on trigger edge settings allows selected DACs to be updated + synchronously for digital function generation. + + pwm-names: + minItems: 1 + maxItems: 4 + items: + enum: [ tg0, tg1, tg2, tg3 ] + + io-channels: + maxItems: 1 + description: + ADC channel connected to the MUXOUT pin for monitoring output voltag= e, + load current sense, and die temperature. + + io-channel-names: + const: muxout + + vdd-io-supply: + description: Digital power supply (1.08V to 1.98V) + + vdd-5v-supply: + description: Analog power supply (4.75V to 5.25V) + + vdd-hv0-supply: + description: + High voltage positive supply (7V to 45V) for channels 0 to 3. + + vdd-hv1-supply: + description: + High voltage positive supply (7V to 45V) for channels 4 to 7. + + vdd-hv2-supply: + description: + High voltage positive supply (7V to 45V) for channels 8 to 11. + + vdd-hv3-supply: + description: + High voltage positive supply (7V to 45V) for channels 12 to 15. + + vss-hv0-supply: + description: + High voltage negative supply (-22.5V to 0V) for channels 0 to 3. + + vss-hv1-supply: + description: + High voltage negative supply (-22.5V to 0V) for channels 4 to 7. + + vss-hv2-supply: + description: + High voltage negative supply (-22.5V to 0V) for channels 8 to 11. + + vss-hv3-supply: + description: + High voltage negative supply (-22.5V to 0V) for channels 12 to 15. + + vref-supply: + description: + External voltage reference supply (4.056V to 4.136V, typically 4.096= V). + When specified, the device uses external reference mode and the VREF= pin + becomes an input. The device uses the internal 4.096V precision refe= rence + otherwise. + + spi-device-addr: + minItems: 1 + maxItems: 4 + items: + enum: [0, 1, 2, 3] + default: 0 + description: + Hardware address of each device, selected by the ID0 and ID1 pins. + Up to four AD5529R devices can share a single SPI chip select. + + "#address-cells": + const: 1 + + "#size-cells": + const: 0 + +patternProperties: + "^channel@([0-9a-f]{1,2})$": + $ref: dac.yaml + type: object + description: Child nodes for individual channel configuration + + properties: + reg: + description: + Flattened channel number across all AD5529R devices sharing the = chip + select. Within each 16-channel block, the physical channel numbe= r is reg % 16. + minimum: 0 + maximum: 63 + + output-range-microvolt: + description: + Output voltage range for this channel as [min, max] in + microvolts. + oneOf: + - items: + - const: 0 + default: 0 + - enum: [5000000, 10000000, 20000000, 40000000] + default: 5000000 + - items: + - const: -5000000 + - const: 5000000 + - items: + - const: -10000000 + - const: 10000000 + - items: + - const: -15000000 + - const: 15000000 + - items: + - const: -20000000 + - const: 20000000 + + required: + - reg + + additionalProperties: false + +required: + - compatible + - reg + - vdd-io-supply + - vdd-5v-supply + - vdd-hv0-supply + - vdd-hv1-supply + - vdd-hv2-supply + - vdd-hv3-supply + +dependencies: + spi-cpha: [ spi-cpol ] + spi-cpol: [ spi-cpha ] + +allOf: + - $ref: /schemas/spi/spi-peripheral-props.yaml# + +unevaluatedProperties: false + +examples: + - | + #include + + spi { + #address-cells =3D <1>; + #size-cells =3D <0>; + + dac@0 { + compatible =3D "adi,ad5529r-16"; + reg =3D <0>; + spi-max-frequency =3D <25000000>; + spi-device-addr =3D <0>; + + vdd-io-supply =3D <&vdd_io_regulator>; + vdd-5v-supply =3D <&vdd_5v_regulator>; + vdd-hv0-supply =3D <&vdd_hv0_regulator>; + vdd-hv1-supply =3D <&vdd_hv1_regulator>; + vdd-hv2-supply =3D <&vdd_hv2_regulator>; + vdd-hv3-supply =3D <&vdd_hv3_regulator>; + vss-hv0-supply =3D <&vss_hv0_regulator>; + vss-hv1-supply =3D <&vss_hv1_regulator>; + vss-hv2-supply =3D <&vss_hv2_regulator>; + vss-hv3-supply =3D <&vss_hv3_regulator>; + + reset-gpios =3D <&gpio0 87 GPIO_ACTIVE_LOW>; + + #address-cells =3D <1>; + #size-cells =3D <0>; + + channel@0 { + reg =3D <0>; + output-range-microvolt =3D <0 5000000>; + }; + + channel@1 { + reg =3D <1>; + output-range-microvolt =3D <(-10000000) 10000000>; + }; + + channel@2 { + reg =3D <2>; + output-range-microvolt =3D <0 40000000>; + }; + }; + }; +... diff --git a/MAINTAINERS b/MAINTAINERS index d6c3c7d22403..320e84765ce6 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1507,6 +1507,13 @@ W: https://ez.analog.com/linux-software-drivers F: Documentation/devicetree/bindings/iio/adc/adi,ad4851.yaml F: drivers/iio/adc/ad4851.c =20 +ANALOG DEVICES INC AD5529R DRIVER +M: Janani Sunil +L: linux-iio@vger.kernel.org +S: Supported +W: https://ez.analog.com/linux-software-drivers +F: Documentation/devicetree/bindings/iio/dac/adi,ad5529r.yaml + ANALOG DEVICES INC AD5706R DRIVER M: Alexis Czezar Torreno L: linux-iio@vger.kernel.org --=20 2.43.0 From nobody Mon Sep 28 15:34:34 2026 Received: from mx0a-00128a01.pphosted.com (mx0a-00128a01.pphosted.com [148.163.135.77]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 8F2D33A3E76; Thu, 20 Aug 2026 07:09:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.163.135.77 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787209784; cv=none; b=APFwkz0uKQbU1fuO+AEzaxr/B3mnSzBt2TQtlGP+T0XYf9C+1LuviYpA7QSIgsFhgAJqInykPkJvtxwxFo6p4SptcR6nsWfcu34Z6ziRp87ULKAEjG0tDvo9nPPbYGxWCf47Nxl511iBo8Wn1KxT7uLDTS8OfFS1hQTRqdasOpA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787209784; c=relaxed/simple; bh=gE5q52/sAIPRuycMYozfY40aAfLtAFgCtUhc2Gn58Po=; h=From:Date:Subject:MIME-Version:Content-Type:Message-ID:References: In-Reply-To:To:CC; b=iDxcVCNyzg6IS/I3eu10EZzibC7euQmyk8gtsuI9TVzZLTY8kLdT87SC6xkE6G1+Dprj4rq4BF4a3eUrnMUqfXtcPuhsCF4eoKQjyHM5L9DgEV1Yf3NUJ4bWjRKc0gkZdFqkW4RTn4zPaU+v0vbUvUIWY98JayCWAVYbzWry72Q= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=analog.com; spf=pass smtp.mailfrom=analog.com; dkim=pass (2048-bit key) header.d=analog.com header.i=@analog.com header.b=IzT6dCeA; arc=none smtp.client-ip=148.163.135.77 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=quarantine dis=none) header.from=analog.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=analog.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=analog.com header.i=@analog.com header.b="IzT6dCeA" Received: from pps.filterd (m0516787.ppops.net [127.0.0.1]) by mx0a-00128a01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 67K3hvHG3166368; Thu, 20 Aug 2026 03:09:02 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=analog.com; h=cc :content-transfer-encoding:content-type:date:from:in-reply-to :message-id:mime-version:references:subject:to; s=DKIM; bh=2S9K4 JYkBpeZ/OAviIhOklAj6gwpnd3hEz1M/3PyNZE=; b=IzT6dCeAR76gaaDX54uaB 2neUjt88K4BXfsuf0IiEToBIMnJNYZfpOEHY8w2us/0tzFSVZiolCPoGKfwtWgx8 nqXMmxn7s6cW2x6Cndcsn3KvrH2M6a6ZsUoGJYoaOLkXcHpLp/fGaaU2p76ARddK 4YUZ7V2jPILxYNOQNH++e9ECd0BpC7+l6Pd/HoyffkUenBvA2PgqJf+iLAHn10tZ cNDM30tvem2qW9lXOLaiIIXjwO7HviVtrHNuxYrqaeFazcMqO6XBKdb6hIIwwD/c DuXTQfTeEipDX5fkIv4prII6taJucHBuvMh9AGeU2mg5PDXKpa1fOka1n6dAwU2P g== Received: from nwd2mta4.analog.com ([137.71.173.58]) by mx0a-00128a01.pphosted.com (PPS) with ESMTPS id 4g4yfbh59j-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Thu, 20 Aug 2026 03:09:01 -0400 (EDT) Received: from ASHBMBX8.ad.analog.com (ASHBMBX8.ad.analog.com [10.64.17.5]) by nwd2mta4.analog.com (8.14.7/8.14.7) with ESMTP id 67K790Sh018810 (version=TLSv1/SSLv3 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 20 Aug 2026 03:09:00 -0400 Received: from ASHBCASHYB4.ad.analog.com (10.64.17.132) by ASHBMBX8.ad.analog.com (10.64.17.5) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1748.37; Thu, 20 Aug 2026 03:09:00 -0400 Received: from ASHBMBX9.ad.analog.com (10.64.17.10) by ASHBCASHYB4.ad.analog.com (10.64.17.132) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.1748.37; Thu, 20 Aug 2026 03:09:00 -0400 Received: from zeus.spd.analog.com (10.66.68.11) by ashbmbx9.ad.analog.com (10.64.17.10) with Microsoft SMTP Server id 15.2.1748.37 via Frontend Transport; Thu, 20 Aug 2026 03:09:00 -0400 Received: from HYB-e1y2fvUQ3cx.ad.analog.com (HYB-e1y2fvUQ3cx.ad.analog.com [10.44.3.68]) by zeus.spd.analog.com (8.15.1/8.15.1) with ESMTP id 67K78Okb003019; Thu, 20 Aug 2026 03:08:52 -0400 From: Janani Sunil Date: Thu, 20 Aug 2026 09:08:23 +0200 Subject: [PATCH v9 3/3] iio: dac: Add AD5529R DAC driver support Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-ID: <20260820-ad5529r-driver-v9-3-ba62e0b2a816@analog.com> References: <20260820-ad5529r-driver-v9-0-ba62e0b2a816@analog.com> In-Reply-To: <20260820-ad5529r-driver-v9-0-ba62e0b2a816@analog.com> To: Lars-Peter Clausen , Michael Hennerich , Jonathan Cameron , "David Lechner" , =?utf-8?q?Nuno_S=C3=A1?= , Andy Shevchenko , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Philipp Zabel , "Jonathan Corbet" , Shuah Khan , Mark Brown , Marius Cristea , "Marcus Folkesson" , Kent Gustavsson , Conor Dooley , Daire McNamara , Paul Walmsley , "Palmer Dabbelt" , Albert Ou , "Alexandre Ghiti" CC: , , , , Janani Sunil , , Kent Gustavsson , , Janani Sunil X-Mailer: b4 0.14.3 X-Developer-Signature: v=1; a=ed25519-sha256; t=1787209704; l=19274; i=janani.sunil@analog.com; s=20260507; h=from:subject:message-id; bh=gE5q52/sAIPRuycMYozfY40aAfLtAFgCtUhc2Gn58Po=; b=ubnA6utLXAwEORA6BAUO6O9Lp73WGdyb0HzoH+WtYuBkLq40L/ZzEMMxWGe+rSx6D7Ur24jRT AVuyQ9BBhmKCGhpx5oa1sSkvTjjEFHfEaXyy2l9Jth/ekRGQmIcTxQs X-Developer-Key: i=janani.sunil@analog.com; a=ed25519; pk=e25MyjRLPY3RWrYm/LrJ+/+t1MZJUbkgIW5CZg+g+hA= X-ADIRuleOP-NewSCL: Rule Triggered X-Proofpoint-ORIG-GUID: jOZsC_Dog1-db5WI5zYAVhQ4kp5JzZ2e X-Authority-Analysis: v=2.4 cv=KbTidwYD c=1 sm=1 tr=0 ts=6a86a80d cx=c_pps a=3WNzaoukacrqR9RwcOSAdA==:117 a=3WNzaoukacrqR9RwcOSAdA==:17 a=IkcTkHD0fZMA:10 a=Sv0fKeRqtYgA:10 a=VkNPw1HP01LnGYTKEx00:22 a=0sLvza09kfJOxVLZPwjg:22 a=OmVn7CZJonkx5R5zMQLL:22 a=gAnH3GRIAAAA:8 a=VwQbUJbxAAAA:8 a=RYKflIcWaOGVf2NWG3oA:9 a=QEXdDO2ut3YA:10 X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwODIwMDA1MCBTYWx0ZWRfX+BcG214dM2kW z8G/LLJazwFwMyYWm93JWrCb6/IWWEMQPabqA8fl3U7hi+yL0bCUMxAVjU0JJMQ5WOY1qndu96v Z2tNNnoGfQKwpzljfIF75+rgsnjLqXNsMjZGPTOK4Rbb9Lr+gOvRhyEYMRFA467iZuztTStcHVS /tktZweaoq3P+NWF5ESKuNpoD0QQt8IyV9ubF2x50KS1ZqroDFeL2YcZPU4Ch7naRMx7Oc6SqNy vSrDM52gwgtUbFzVPCp4dhdZqTDwrwLCmEvg7EF282zvH3/+l0cVlkbfEW7UaDWwC3irutY4SJy 5xEsuRnpWZxXkPcwteHZ5kQhpixtKG8U7p09welRyGGru/9QX5bWBuxqwu+xvV5biYDP9z4dpop I2kAoIwkaA/T4nn47ZRIBjT/WcJXT87Zzv12CGRG/OUoKdk2NiFvoKRTE9CS35ywDhJiSG5gf3x 9Sus05bMMZlxB0CkxKw== X-Proofpoint-Spam-Info: AW1haW4tMjYwODIwMDA1MCBTYWx0ZWRfX0mGXN5JgvcXN gEUIWThNGUwF0FhLiflEI+BN1+i53IzOqCIKbCldr81HVmCVNhysjqk/KPF0usWW75DpuwhecMv zabGsn0/exF7wIx76bgNamikWtgvFf+G+sRAad+du+Sz25LcQZ2L X-Proofpoint-GUID: jOZsC_Dog1-db5WI5zYAVhQ4kp5JzZ2e X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1176,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-08-19_06,2026-08-19_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 malwarescore=0 priorityscore=1501 spamscore=0 phishscore=0 bulkscore=0 suspectscore=0 lowpriorityscore=0 clxscore=1015 adultscore=0 impostorscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2608200050 Add support for AD5529R 16-channel, 12/16 bit Digital to Analog Converter from Analog Devices. The device communicates over SPI and supports per-channel output range configuration. An optional external 4.096V reference can be used in place of the internal reference. Signed-off-by: Janani Sunil --- MAINTAINERS | 1 + drivers/iio/dac/Kconfig | 16 ++ drivers/iio/dac/Makefile | 1 + drivers/iio/dac/ad5529r.c | 538 ++++++++++++++++++++++++++++++++++++++++++= ++++ 4 files changed, 556 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index 320e84765ce6..143714e27d51 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -1513,6 +1513,7 @@ L: linux-iio@vger.kernel.org S: Supported W: https://ez.analog.com/linux-software-drivers F: Documentation/devicetree/bindings/iio/dac/adi,ad5529r.yaml +F: drivers/iio/dac/ad5529r.c =20 ANALOG DEVICES INC AD5706R DRIVER M: Alexis Czezar Torreno diff --git a/drivers/iio/dac/Kconfig b/drivers/iio/dac/Kconfig index 657c68e75542..6a7109f42f2a 100644 --- a/drivers/iio/dac/Kconfig +++ b/drivers/iio/dac/Kconfig @@ -134,6 +134,22 @@ config AD5449 To compile this driver as a module, choose M here: the module will be called ad5449. =20 +config AD5529R + tristate "Analog Devices AD5529R High Voltage DAC driver" + depends on SPI_MASTER + select REGMAP_SPI + help + Say yes here to build support for Analog Devices AD5529R 16-Channel, + 12-Bit/16-Bit, 40V High Voltage Precision Digital to Analog Converter. + + The device features multiple output voltage ranges from -20V to +20V, + built-in 4.096V voltage reference, and digital functions including + toggle, dither, and ramp modes. Supports both 12-bit and 16-bit + resolution variants. + + To compile this driver as a module, choose M here: the + module will be called ad5529r. + config AD5592R_BASE tristate =20 diff --git a/drivers/iio/dac/Makefile b/drivers/iio/dac/Makefile index 003431798498..f35e060b3643 100644 --- a/drivers/iio/dac/Makefile +++ b/drivers/iio/dac/Makefile @@ -18,6 +18,7 @@ obj-$(CONFIG_AD5446) +=3D ad5446.o obj-$(CONFIG_AD5446_SPI) +=3D ad5446-spi.o obj-$(CONFIG_AD5446_I2C) +=3D ad5446-i2c.o obj-$(CONFIG_AD5449) +=3D ad5449.o +obj-$(CONFIG_AD5529R) +=3D ad5529r.o obj-$(CONFIG_AD5592R_BASE) +=3D ad5592r-base.o obj-$(CONFIG_AD5592R) +=3D ad5592r.o obj-$(CONFIG_AD5593R) +=3D ad5593r.o diff --git a/drivers/iio/dac/ad5529r.c b/drivers/iio/dac/ad5529r.c new file mode 100644 index 000000000000..698284023268 --- /dev/null +++ b/drivers/iio/dac/ad5529r.c @@ -0,0 +1,538 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * AD5529R Digital-to-Analog Converter Driver + * 16-Channel, 12/16-Bit, 40V High Voltage Precision DAC + * + * Copyright 2026 Analog Devices Inc. + * Author: Janani Sunil + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#define AD5529R_REG_INTERFACE_CONFIG_A 0x00 +#define AD5529R_INTERFACE_CONFIG_A_SW_RESET (BIT(7) | BIT(0)) +#define AD5529R_INTERFACE_CONFIG_A_ADDR_ASCENSION BIT(5) +#define AD5529R_INTERFACE_CONFIG_A_SDO_ENABLE BIT(4) +#define AD5529R_REG_DEVICE_CONFIG 0x02 +#define AD5529R_REG_CHIP_GRADE 0x06 +#define AD5529R_REG_SCRATCH_PAD 0x0A +#define AD5529R_REG_SPI_REVISION 0x0B +#define AD5529R_REG_VENDOR_H 0x0D +#define AD5529R_REG_STREAM_MODE 0x0E +#define AD5529R_REG_INTERFACE_STATUS_A 0x11 +#define AD5529R_REG_MULTI_DAC_CH_SEL 0x14 +#define AD5529R_REG_OUT_RANGE_BASE 0x3C +#define AD5529R_REG_OUT_RANGE(ch) (AD5529R_REG_OUT_RANGE_BASE + (ch) * 2) +#define AD5529R_REG_DAC_INPUT_A_BASE 0x148 +#define AD5529R_REG_DAC_INPUT_A(ch) (AD5529R_REG_DAC_INPUT_A_BASE + (ch) = * 2) +#define AD5529R_REG_DAC_DATA_READBACK_BASE 0x16A +#define AD5529R_REG_TSENS_ALERT_FLAG 0x18C +#define AD5529R_REG_TSENS_SHTD_FLAG 0x18E +#define AD5529R_REG_FUNC_BUSY 0x1A0 +#define AD5529R_REG_REF_SEL 0x1A2 +#define AD5529R_REF_SEL_INTERNAL_REF BIT(0) +#define AD5529R_REG_INIT_CRC_ERR_STAT 0x1A4 +#define AD5529R_REG_MULTI_DAC_HOTPATH_SW_LDAC 0x1A8 + +#define AD5529R_MAX_REGISTER 0x232 +#define AD5529R_8BIT_REG_MAX 0x13 +#define AD5529R_MAX_CHANNELS 16 +#define AD5529R_SPI_READ_FLAG 0x80 +#define AD5529R_ADDR_SHIFT 12 + +struct ad5529r_model_data { + const char *model_name; + unsigned int resolution; +}; + +#define AD5529R_DAC_CHANNEL(chan) ((struct iio_chan_spec) { \ + .type =3D IIO_VOLTAGE, \ + .indexed =3D 1, \ + .output =3D 1, \ + .channel =3D (chan), \ + .info_mask_separate =3D BIT(IIO_CHAN_INFO_RAW) | \ + BIT(IIO_CHAN_INFO_SCALE) | \ + BIT(IIO_CHAN_INFO_OFFSET), \ +}) + +static const char * const ad5529r_supply_names[] =3D { + "vdd-io", + "vdd-5v", + "vdd-hv0", + "vdd-hv1", + "vdd-hv2", + "vdd-hv3", +}; + +static const char * const ad5529r_vss_supply_names[] =3D { + "vss-hv0", + "vss-hv1", + "vss-hv2", + "vss-hv3", +}; + +static const struct ad5529r_model_data ad5529r_16bit_model_data =3D { + .model_name =3D "ad5529r-16", + .resolution =3D 16, +}; + +static const struct ad5529r_model_data ad5529r_12bit_model_data =3D { + .model_name =3D "ad5529r-12", + .resolution =3D 12, +}; + +enum ad5529r_output_range { + AD5529R_RANGE_0V_5V, + AD5529R_RANGE_0V_10V, + AD5529R_RANGE_0V_20V, + AD5529R_RANGE_0V_40V, + AD5529R_RANGE_NEG5V_5V, + AD5529R_RANGE_NEG10V_10V, + AD5529R_RANGE_NEG15V_15V, + AD5529R_RANGE_NEG20V_20V, +}; + +static const s32 ad5529r_output_ranges_mV[8][2] =3D { + [AD5529R_RANGE_0V_5V] =3D { 0, 5000 }, + [AD5529R_RANGE_0V_10V] =3D { 0, 10000 }, + [AD5529R_RANGE_0V_20V] =3D { 0, 20000 }, + [AD5529R_RANGE_0V_40V] =3D { 0, 40000 }, + [AD5529R_RANGE_NEG5V_5V] =3D { -5000, 5000 }, + [AD5529R_RANGE_NEG10V_10V] =3D { -10000, 10000 }, + [AD5529R_RANGE_NEG15V_15V] =3D { -15000, 15000 }, + [AD5529R_RANGE_NEG20V_20V] =3D { -20000, 20000 }, +}; + +struct ad5529r_state { + struct spi_device *spi; + const struct ad5529r_model_data *model_data; + struct regmap *regmap_8bit; + struct regmap *regmap_16bit; + struct iio_chan_spec channels[AD5529R_MAX_CHANNELS]; + unsigned int num_channels; + enum ad5529r_output_range output_range_idx[AD5529R_MAX_CHANNELS]; +}; + +static const struct regmap_range ad5529r_8bit_readable_ranges[] =3D { + regmap_reg_range(AD5529R_REG_INTERFACE_CONFIG_A, AD5529R_REG_CHIP_GRADE), + regmap_reg_range(AD5529R_REG_SCRATCH_PAD, AD5529R_REG_VENDOR_H), + regmap_reg_range(AD5529R_REG_STREAM_MODE, AD5529R_REG_INTERFACE_STATUS_A), +}; + +static const struct regmap_range ad5529r_16bit_readable_ranges[] =3D { + regmap_reg_range(AD5529R_REG_MULTI_DAC_CH_SEL, AD5529R_REG_INIT_CRC_ERR_S= TAT), + regmap_reg_range(AD5529R_REG_MULTI_DAC_HOTPATH_SW_LDAC, AD5529R_MAX_REGIS= TER), +}; + +static const struct regmap_access_table ad5529r_8bit_readable_table =3D { + .yes_ranges =3D ad5529r_8bit_readable_ranges, + .n_yes_ranges =3D ARRAY_SIZE(ad5529r_8bit_readable_ranges), +}; + +static const struct regmap_access_table ad5529r_16bit_readable_table =3D { + .yes_ranges =3D ad5529r_16bit_readable_ranges, + .n_yes_ranges =3D ARRAY_SIZE(ad5529r_16bit_readable_ranges), +}; + +static const struct regmap_range ad5529r_8bit_read_only_ranges[] =3D { + regmap_reg_range(AD5529R_REG_DEVICE_CONFIG, AD5529R_REG_CHIP_GRADE), + regmap_reg_range(AD5529R_REG_SPI_REVISION, AD5529R_REG_VENDOR_H), +}; + +static const struct regmap_range ad5529r_16bit_read_only_ranges[] =3D { + regmap_reg_range(AD5529R_REG_DAC_DATA_READBACK_BASE, + AD5529R_REG_DAC_DATA_READBACK_BASE + + (AD5529R_MAX_CHANNELS - 1) * 2), + regmap_reg_range(AD5529R_REG_TSENS_ALERT_FLAG, AD5529R_REG_TSENS_SHTD_FLA= G), + regmap_reg_range(AD5529R_REG_FUNC_BUSY, AD5529R_REG_FUNC_BUSY), + regmap_reg_range(AD5529R_REG_INIT_CRC_ERR_STAT, AD5529R_REG_INIT_CRC_ERR_= STAT), +}; + +static const struct regmap_access_table ad5529r_8bit_writeable_table =3D { + .no_ranges =3D ad5529r_8bit_read_only_ranges, + .n_no_ranges =3D ARRAY_SIZE(ad5529r_8bit_read_only_ranges), +}; + +static const struct regmap_access_table ad5529r_16bit_writeable_table =3D { + .no_ranges =3D ad5529r_16bit_read_only_ranges, + .n_no_ranges =3D ARRAY_SIZE(ad5529r_16bit_read_only_ranges), +}; + +static struct regmap *ad5529r_get_regmap(struct ad5529r_state *st, + unsigned int reg) +{ + if (reg <=3D AD5529R_8BIT_REG_MAX) + return st->regmap_8bit; + + return st->regmap_16bit; +} + +static int ad5529r_reset(struct ad5529r_state *st) +{ + struct reset_control *rst; + int ret; + + rst =3D devm_reset_control_get_optional_exclusive(&st->spi->dev, NULL); + if (IS_ERR(rst)) + return PTR_ERR(rst); + + if (rst) { + ret =3D reset_control_assert(rst); + if (ret) + return ret; + + /* Minimum reset low width (t_reset) is 20 ns per datasheet. */ + ndelay(20); + + ret =3D reset_control_deassert(rst); + if (ret) + return ret; + } else { + ret =3D regmap_write(st->regmap_8bit, AD5529R_REG_INTERFACE_CONFIG_A, + AD5529R_INTERFACE_CONFIG_A_SW_RESET); + if (ret) + return ret; + } + + /* + * Wait 10 ms for digital initialization to complete. + * Per datasheet, Interface Status A register NOT_READY_ERR bit is + * set if SPI transactions are attempted before digital initialization + * completes. + */ + fsleep(10 * USEC_PER_MSEC); + + return regmap_write(st->regmap_8bit, AD5529R_REG_INTERFACE_CONFIG_A, + AD5529R_INTERFACE_CONFIG_A_SDO_ENABLE | + AD5529R_INTERFACE_CONFIG_A_ADDR_ASCENSION); +} + +static int ad5529r_read_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int *val, int *val2, long mask) +{ + struct ad5529r_state *st =3D iio_priv(indio_dev); + unsigned int reg_addr, reg_val_h; + int ret, range_idx, span_mv; + + switch (mask) { + case IIO_CHAN_INFO_RAW: + /* + * Read from DAC_INPUT_A register rather than DAC_DATA_READBACK. + * The DAC operates in transparent mode and directly reflects + * whatever value is written to the INPUT_A register. + */ + reg_addr =3D AD5529R_REG_DAC_INPUT_A(chan->channel); + ret =3D regmap_read(st->regmap_16bit, reg_addr, ®_val_h); + if (ret) + return ret; + + *val =3D reg_val_h; + + return IIO_VAL_INT; + case IIO_CHAN_INFO_SCALE: + range_idx =3D st->output_range_idx[chan->channel]; + + /* + * The datasheet specifies a 4.096 V external reference, + * matching the nominal output voltage of the internal + * reference. + */ + span_mv =3D ad5529r_output_ranges_mV[range_idx][1] - + ad5529r_output_ranges_mV[range_idx][0]; + *val =3D span_mv; + *val2 =3D st->model_data->resolution; + + return IIO_VAL_FRACTIONAL_LOG2; + case IIO_CHAN_INFO_OFFSET: + range_idx =3D st->output_range_idx[chan->channel]; + + if (ad5529r_output_ranges_mV[range_idx][0] < 0) + *val =3D -(1 << (st->model_data->resolution - 1)); + else + *val =3D 0; + + return IIO_VAL_INT; + default: + return -EINVAL; + } +} + +static int ad5529r_write_raw(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + int val, int val2, long mask) +{ + struct ad5529r_state *st =3D iio_priv(indio_dev); + unsigned int reg_addr; + + switch (mask) { + case IIO_CHAN_INFO_RAW: + if (val < 0 || val > GENMASK(st->model_data->resolution - 1, 0)) + return -EINVAL; + + reg_addr =3D AD5529R_REG_DAC_INPUT_A(chan->channel); + + return regmap_write(st->regmap_16bit, reg_addr, val); + default: + return -EINVAL; + } +} + +static int ad5529r_find_output_range(const s32 *vals) +{ + for (unsigned int i =3D 0; i < ARRAY_SIZE(ad5529r_output_ranges_mV); i++)= { + const s32 *range =3D ad5529r_output_ranges_mV[i]; + + if (vals[0] =3D=3D range[0] * (MICRO / MILLI) && + vals[1] =3D=3D range[1] * (MICRO / MILLI)) + return i; + } + + return -EINVAL; +} + +static int ad5529r_parse_channel_ranges(struct device *dev, + struct ad5529r_state *st) +{ + unsigned long channel_mask =3D 0; + s32 vals[2]; + int ret, range_idx; + u32 ch; + + device_for_each_child_node_scoped(dev, child) { + if (st->num_channels =3D=3D ARRAY_SIZE(st->channels)) + return dev_err_probe(dev, -EINVAL, "Too many channels\n"); + + ret =3D fwnode_property_read_u32(child, "reg", &ch); + if (ret) + return dev_err_probe(dev, ret, + "Missing reg property in channel node\n"); + + if (ch >=3D AD5529R_MAX_CHANNELS) + return dev_err_probe(dev, -EINVAL, + "Channel %u exceeds maximum 15\n", + ch); + + if (channel_mask & BIT(ch)) + return dev_err_probe(dev, -EINVAL, + "Duplicate channel %u\n", ch); + + channel_mask |=3D BIT(ch); + + if (fwnode_property_present(child, "output-range-microvolt")) { + /* + * DT stores cells as raw 32-bit values; signed endpoints are + * encoded by dtc in two's-complement and then interpreted + * here as s32. + */ + ret =3D fwnode_property_read_u32_array(child, + "output-range-microvolt", + (u32 *)vals, ARRAY_SIZE(vals)); + if (ret < 0) + return dev_err_probe(dev, ret, + "Failed to read range for ch %u\n", + ch); + + range_idx =3D ad5529r_find_output_range(vals); + if (range_idx < 0) + return dev_err_probe(dev, range_idx, + "Invalid range [%d %d] for ch %u\n", + vals[0], vals[1], ch); + } else { + range_idx =3D AD5529R_RANGE_0V_5V; + } + + st->output_range_idx[ch] =3D range_idx; + ret =3D regmap_write(st->regmap_16bit, + AD5529R_REG_OUT_RANGE(ch), range_idx); + if (ret) + return dev_err_probe(dev, ret, + "Failed to configure range for ch %u\n", + ch); + + st->channels[st->num_channels++] =3D AD5529R_DAC_CHANNEL(ch); + } + + return 0; +} + +static int ad5529r_reg_access(struct iio_dev *indio_dev, + unsigned int reg, + unsigned int writeval, + unsigned int *readval) +{ + struct ad5529r_state *st =3D iio_priv(indio_dev); + + if (readval) + return regmap_read(ad5529r_get_regmap(st, reg), reg, readval); + + return regmap_write(ad5529r_get_regmap(st, reg), reg, writeval); +} + +static const struct iio_info ad5529r_info =3D { + .read_raw =3D ad5529r_read_raw, + .write_raw =3D ad5529r_write_raw, + .debugfs_reg_access =3D ad5529r_reg_access, +}; + +static int ad5529r_probe(struct spi_device *spi) +{ + struct device *dev =3D &spi->dev; + struct iio_dev *indio_dev; + struct ad5529r_state *st; + struct regmap_config regmap_8bit_cfg; + struct regmap_config regmap_16bit_cfg; + bool external_vref; + u32 dev_addr =3D 0; + unsigned int i; + int ret; + + indio_dev =3D devm_iio_device_alloc(dev, sizeof(*st)); + if (!indio_dev) + return -ENOMEM; + + st =3D iio_priv(indio_dev); + + st->spi =3D spi; + + st->model_data =3D spi_get_device_match_data(spi); + if (!st->model_data) + return dev_err_probe(dev, -ENODATA, + "Failed to identify device variant\n"); + + device_property_read_u32(dev, "spi-device-addr", &dev_addr); + if (dev_addr > 3) + return dev_err_probe(dev, -EINVAL, + "spi-device-addr %u out of range [0, 3]\n", + dev_addr); + + regmap_8bit_cfg =3D (struct regmap_config) { + .name =3D "ad5529r-8bit", + .reg_bits =3D 16, + .val_bits =3D 8, + .max_register =3D AD5529R_8BIT_REG_MAX, + .read_flag_mask =3D AD5529R_SPI_READ_FLAG, + .rd_table =3D &ad5529r_8bit_readable_table, + .wr_table =3D &ad5529r_8bit_writeable_table, + .reg_base =3D dev_addr << AD5529R_ADDR_SHIFT, + }; + regmap_16bit_cfg =3D (struct regmap_config) { + .name =3D "ad5529r-16bit", + .reg_bits =3D 16, + .val_bits =3D 16, + .max_register =3D AD5529R_MAX_REGISTER, + .read_flag_mask =3D AD5529R_SPI_READ_FLAG, + .val_format_endian =3D REGMAP_ENDIAN_LITTLE, + .rd_table =3D &ad5529r_16bit_readable_table, + .wr_table =3D &ad5529r_16bit_writeable_table, + .reg_stride =3D 2, + .reg_base =3D dev_addr << AD5529R_ADDR_SHIFT, + }; + + ret =3D devm_regulator_bulk_get_enable(dev, ARRAY_SIZE(ad5529r_supply_nam= es), + ad5529r_supply_names); + if (ret) + return dev_err_probe(dev, ret, + "Failed to get and enable regulators\n"); + + for (i =3D 0; i < ARRAY_SIZE(ad5529r_vss_supply_names); i++) { + ret =3D devm_regulator_get_enable_optional(dev, + ad5529r_vss_supply_names[i]); + if (ret && ret !=3D -ENODEV) + return dev_err_probe(dev, ret, + "Failed to get and enable %s regulator\n", + ad5529r_vss_supply_names[i]); + } + + ret =3D devm_regulator_get_enable_optional(dev, "vref"); + if (ret =3D=3D -ENODEV) + external_vref =3D false; + else if (ret) + return dev_err_probe(dev, ret, + "Failed to get and enable vref regulator\n"); + else + external_vref =3D true; + + /* Wait 10 ms after power-up before the first SPI transaction. */ + fsleep(10 * USEC_PER_MSEC); + + st->regmap_8bit =3D devm_regmap_init_spi(spi, ®map_8bit_cfg); + if (IS_ERR(st->regmap_8bit)) + return dev_err_probe(dev, PTR_ERR(st->regmap_8bit), + "Failed to initialize 8-bit regmap\n"); + + st->regmap_16bit =3D devm_regmap_init_spi(spi, ®map_16bit_cfg); + if (IS_ERR(st->regmap_16bit)) + return dev_err_probe(dev, PTR_ERR(st->regmap_16bit), + "Failed to initialize 16-bit regmap\n"); + + ret =3D ad5529r_reset(st); + if (ret) + return dev_err_probe(dev, ret, "Failed to reset device\n"); + + ret =3D regmap_assign_bits(st->regmap_16bit, AD5529R_REG_REF_SEL, + AD5529R_REF_SEL_INTERNAL_REF, + !external_vref); + if (ret) + return dev_err_probe(dev, ret, "Failed to configure reference\n"); + + ret =3D ad5529r_parse_channel_ranges(dev, st); + if (ret) + return ret; + + indio_dev->name =3D st->model_data->model_name; + indio_dev->info =3D &ad5529r_info; + indio_dev->modes =3D INDIO_DIRECT_MODE; + indio_dev->channels =3D st->channels; + indio_dev->num_channels =3D st->num_channels; + + return devm_iio_device_register(dev, indio_dev); +} + +static const struct of_device_id ad5529r_of_match[] =3D { + { .compatible =3D "adi,ad5529r-16", .data =3D &ad5529r_16bit_model_data }, + { .compatible =3D "adi,ad5529r-12", .data =3D &ad5529r_12bit_model_data }, + { } +}; +MODULE_DEVICE_TABLE(of, ad5529r_of_match); + +static const struct spi_device_id ad5529r_id[] =3D { + { + .name =3D "ad5529r-16", + .driver_data =3D (kernel_ulong_t)&ad5529r_16bit_model_data, + }, + { + .name =3D "ad5529r-12", + .driver_data =3D (kernel_ulong_t)&ad5529r_12bit_model_data, + }, + { } +}; +MODULE_DEVICE_TABLE(spi, ad5529r_id); + +static struct spi_driver ad5529r_driver =3D { + .driver =3D { + .name =3D "ad5529r", + .of_match_table =3D ad5529r_of_match, + }, + .probe =3D ad5529r_probe, + .id_table =3D ad5529r_id, +}; +module_spi_driver(ad5529r_driver); + +MODULE_AUTHOR("Janani Sunil "); +MODULE_DESCRIPTION("Analog Devices AD5529R 12/16-bit DAC driver"); +MODULE_LICENSE("GPL"); --=20 2.43.0