From patchwork Mon Aug 12 15:00:54 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Bonnefille X-Patchwork-Id: 13760777 Received: from relay9-d.mail.gandi.net (relay9-d.mail.gandi.net [217.70.183.199]) (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 2EE127F6; Mon, 12 Aug 2024 15:01:08 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.70.183.199 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723474873; cv=none; b=pya1beZS3MLqS/t0oWag47gymQEThfPf0TxwldmzBB8O8YTDF94M6mkIQoi3khFijwWK4L/uWE2MsKFvaIIXOICXxwosvLzVYeVkLckkulnAn4RoosXKsbwy+W1lV36LZaqWcpke2sqh6V9VtKVboxRsVaKPmu8HpPQJ3LxT7fg= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723474873; c=relaxed/simple; bh=qXQ33owotgSnZeYZJ2+UpfZZ8U8matWz4X0TsIqMtKY=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type:To:Cc; b=owPAwCB6IkNtCwPfHASqiZ9/Ec26x7XtJ0NIoiHN3gHpJC48hUnF/LE4JEv8/pRzyNa79kc3PIKW6TRrUv76MncvGL+0GLcT54l7RD0+fzEocQZcL1U1sG/gzWrLELL6KJBFL4oFHWMfu/uVvvneCf6SKJVrH2U7p1fM7IxGxP8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com; spf=pass smtp.mailfrom=bootlin.com; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b=l8ekYPfh; arc=none smtp.client-ip=217.70.183.199 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="l8ekYPfh" Received: by mail.gandi.net (Postfix) with ESMTPSA id 23BD8FF804; Mon, 12 Aug 2024 15:01:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1723474866; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding; bh=zrkbsHf98jdzwc61NfnGUE1oZTZ8EfUZY7Ktf9hQoNU=; b=l8ekYPfhWJdnIxZH+oQ1nPhqOT0NRFtgyw1sKdDEXKY7wRNnsxnaBwfJ1t9ZOO1oOQU6Pr /Jdu5VRbE5RLEWR1kjfQwUupWiRC1VnWo3gDfPHREarJQHXR50+/dXISHo/Y37gor8e+BG SGmaG2jUwnQCHzLaDCTnhsvs5wYx2NwvDEG6NqRlrPFX2oGp7l8GgUlkPx01pAjjH4tGuo Skd+oL/o71KVdeiyh4QEqkviSTRyqkb436Sqhiicix+RgMl/XdzTazv5HrnySPzSDlGJoZ Igjk5xyKi+hPWsu3UzycKUeFEnRlplbiIFSeRJ8EueEnI9/kNiUrpch0+Llfyw== From: Thomas Bonnefille Subject: [PATCH v4 0/3] Add SARADC support on Sophgo CV18XX series Date: Mon, 12 Aug 2024 17:00:54 +0200 Message-Id: <20240812-sg2002-adc-v4-0-599bdb67592f@bootlin.com> Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-B4-Tracking: v=1; b=H4sIAKYjumYC/2XMSw6CMBSF4a2Qjq25vX1QHLkP46CUAk2UmpYQD WHvFpxAHJ6TfP9MkoveJXIpZhLd5JMPQx7iVBDbm6Fz1Dd5EwQUILGkqUMApKaxtEJRa4W24S2 SDF7Rtf69xW73vHufxhA/W3ti6/vLlNnvMhOjQI1VykGpTCnVtQ5hfPjhbMOTrKEJ91geMGasu UBtEUxV4z/mO8zZAfOMpbECjGTagjniZVm+NPaMMSABAAA= To: Jonathan Cameron , Lars-Peter Clausen , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Chen Wang , Inochi Amaoto , Paul Walmsley , Palmer Dabbelt , Albert Ou Cc: Thomas Petazzoni , =?utf-8?q?Miqu=C3=A8l_R?= =?utf-8?q?aynal?= , linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-riscv@lists.infradead.org, Thomas Bonnefille X-Mailer: b4 0.14.1 X-GND-Sasl: thomas.bonnefille@bootlin.com This patchset adds initial ADC support for Sophgo SoC. This driver can work with or without interrupt and in "Active" and "No-Die" domains depending on if a clock is provided. Link: https://github.com/sophgo/sophgo-doc/releases/download/sg2002-trm-v1.0/sg2002_trm_en.pdf Signed-off-by: Thomas Bonnefille --- Changes in v4: - Lowercase register hexadecimal value in dts - Reorder properties in dts - Use only a const in the compatible property of the device tree bindings - Specify the series of SoC in the driver to avoid confusing with other Sophgo SoCs - Add channel description in the bindings - Use FIELD_PREP in the default configuration - Index channels from 0 - Return PTR_ERR instead of IS_ERR - Link to v3: https://lore.kernel.org/r/20240731-sg2002-adc-v3-0-5ac40a518c0a@bootlin.com Changes in v3: - Subdivide default cycle configuration into multiple elementary configurations - Fix formatting in the driver - Use devm_mutex_init - Use devm_clk_get_enabled now because the clock is no more optional - Remove handling of Saradc in No-Die Domain as RTC isn't implemented yet - Use cv1800-saradc as default compatible instead of a wildcard - Link to v2: https://lore.kernel.org/r/20240705-sg2002-adc-v2-0-83428c20a9b2@bootlin.com Changes in v2: - Drop modifications in MAINTAINERS file - Rename the ADC from "sophgo-adc" to "sophgo-cv18xx-adc" to avoid conflict with ADCs available in future Sophgo SoCs. - Reorder nodes in DT to match DTS coding style - Switch from including to - Use scoped_guard instead of mutex_lock/unlock - Check IRQ Status in the handler - Change IIO device name - Use devm_clk_get_optional_enabled instead of a clock variable - Init completion before the IRQ request - Removed unnecessary iio_info structure in the private data of the driver - Use SoC specific compatible in the bindings and device trees - Link to v1: https://lore.kernel.org/r/20240702-sg2002-adc-v1-0-ac66e076a756@bootlin.com --- Thomas Bonnefille (3): dt-bindings: iio: adc: sophgo,cv18xx-saradc.yaml: Add Sophgo CV18XX SARADC binding iio: adc: sophgo-saradc: Add driver for Sophgo CV18XX series SARADC riscv: dts: sophgo: Add SARADC description for Sophgo CV18XX .../bindings/iio/adc/sophgo,cv18xx-saradc.yaml | 85 +++++++++ arch/riscv/boot/dts/sophgo/cv18xx.dtsi | 20 ++ drivers/iio/adc/Kconfig | 10 + drivers/iio/adc/Makefile | 1 + drivers/iio/adc/sophgo-cv18xx-adc.c | 208 +++++++++++++++++++++ 5 files changed, 324 insertions(+) --- base-commit: 7c626ce4bae1ac14f60076d00eafe71af30450ba change-id: 20240527-sg2002-adc-924b862cd3f2 Best regards,