From patchwork Thu Aug 29 12:31:49 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Thomas Bonnefille X-Patchwork-Id: 13783102 Received: from relay5-d.mail.gandi.net (relay5-d.mail.gandi.net [217.70.183.197]) (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 B99C218C35B; Thu, 29 Aug 2024 12:32:05 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.70.183.197 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724934729; cv=none; b=FxvY1wQ+X10ocFveTeGmxNxHG/2Xm5wWCGC3/30pejCk7g/IPFyYYcZECucYPEqHHekNs5g53uAgvFOPjlHnOTDysmnEnFjAu0J0w8ht3sfXmiIiWQ+vgZEHSDpXcUlXv/gSxrM3TjyGSgioveAiIPI1lIH5CLdZJ5V/5xyCFI0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724934729; c=relaxed/simple; bh=AxUYagKzS0M34P1LwO3B0M/v+bfZjDJYTAgL979ou/0=; h=From:Subject:Date:Message-Id:MIME-Version:Content-Type:To:Cc; b=geYXkMONRXC2N+nhECP1Jip4TxFnBCzlQ7/mqcnYdjaEFk1389qVSjR+oVOLRxg+2AkWRfQCR3VClf46nT7NzujwtR7siSIHNSrHDhTnTJYa8uWU2kzHUIYAVPKcn1drdXKcXasHHLpv+hs2L6gv/UMil7mFFGlsJ4bGFBCgV70= 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=TTagIQIT; arc=none smtp.client-ip=217.70.183.197 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="TTagIQIT" Received: by mail.gandi.net (Postfix) with ESMTPSA id E622B1C0004; Thu, 29 Aug 2024 12:32:01 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1724934723; 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=OxfsV/iIio6m392vSk+A+q8P71V8n5mUkMrGc4zlCY8=; b=TTagIQITvw23bb+4HNuxTi1+1mMWcZN+sDyZErMKmaeb3GwP502QISJSOpHYbf++++WmAP MKeaUAqrFWxvI3yS4gzRai6p8GX+jBSz3YM3u1xPeOesrhkuPRUgsG7n6LQLzvbBIurBXi UdKn6rVR6HY/PXTvJxPJZ6ZqtDyR8Zyswpd38YYLFHchmfW9AEGmJTLm0crgKyIsuO7Gjr smNpWwS7S45UpECdPBtqUkTBUCULP0tBtq4oDel2kT9bKVHz7x9buP4xj10Az2gV9M1DP4 dhH7ptUPiGJsPJd0t14Hvhm2ln/TkY52YIYxQ9j4obgv0VKLzkAfS35NLfqi2g== From: Thomas Bonnefille Subject: [PATCH v5 0/3] Add SARADC support on Sophgo CV18XX series Date: Thu, 29 Aug 2024 14:31:49 +0200 Message-Id: <20240829-sg2002-adc-v5-0-aacb381e869b@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=H4sIADVq0GYC/2XOTQrCMBCG4atI1kYmk39X3kNcJGmqAW2kKUWR3 t1UF7a4/Aael3mREvsUC9lvXqSPYyopd3XI7YaEi+vOkaamboKAAiRqWs4IgNQ1gVoU3igMDW+ RVHDvY5sen9jxVPcllSH3z097ZPP1m9HVLzIjo0BdUCqCVk5LdfA5D9fU7UK+kTk04hLLFcaKD RdoAoKzHv8xX2DOVphXLF0Q4CQzAdw/Fj9s2PptMWNrfeOVlhbbNZ6m6Q3ugGDpXQEAAA== 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 CV18XX series SoC. This driver can work with or without interrupt. Link: https://github.com/sophgo/sophgo-doc/releases/download/sg2002-trm-v1.0/sg2002_trm_en.pdf Signed-off-by: Thomas Bonnefille --- Changes in v5: - Add the ability to read the sample frequency - Edit commit message to remove No-Die reference and add precision on the ADC series - Rename binding and driver file to match compatible - Reformat the channel property in the binding - Clean driver code - Link to v4: https://lore.kernel.org/r/20240812-sg2002-adc-v4-0-599bdb67592f@bootlin.com 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 - Remove platform_set_drvdata as it wasn't used - 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,cv1800b-saradc: Add Sophgo CV1800B SARADC iio: adc: sophgo-saradc: Add driver for Sophgo CV1800B SARADC riscv: dts: sophgo: Add SARADC description for Sophgo CV1800B .../bindings/iio/adc/sophgo,cv1800b-saradc.yaml | 83 ++++++++ arch/riscv/boot/dts/sophgo/cv18xx.dtsi | 22 +++ drivers/iio/adc/Kconfig | 10 + drivers/iio/adc/Makefile | 1 + drivers/iio/adc/sophgo-cv1800b-adc.c | 218 +++++++++++++++++++++ 5 files changed, 334 insertions(+) --- base-commit: 5be63fc19fcaa4c236b307420483578a56986a37 change-id: 20240527-sg2002-adc-924b862cd3f2 Best regards,