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Date: Tue, 12 Aug 2025 16:04:21 +0800 Message-Id: <20250812-adc-v2-0-0260833f13b8@nxp.com> Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit X-B4-Tracking: v=1; b=H4sIAIX1mmgC/6tWKk4tykwtVrJSqFYqSi3LLM7MzwNyjHQUlJIzE vPSU3UzU4B8JSMDI1MDC0Mj3cSUZF0LY8tUE8sUU9OUREsloMqCotS0zAqwKdGxtbUAVzqADVU AAAA= X-Change-ID: 20250812-adc-839e49d55da9 To: Jonathan Cameron , David Lechner , =?utf-8?q?Nuno_S=C3=A1?= , Andy Shevchenko , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , primoz.fiser@norik.com Cc: linux-iio@vger.kernel.org, imx@lists.linux.dev, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, Haibo Chen X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1754985925; l=1557; i=haibo.chen@nxp.com; s=20250421; h=from:subject:message-id; bh=KPXh7I3tBHiASF3Tj7lVPAfyDZcBnrLHYK0UAzxoNOg=; b=fiwnurpNMTz3rI3EP2JfXt0kCcKPU1U7QAAVqtmJEgrdKEv1ITAXclpK627fNphxLn1QPLvfY FEJnwlAYQuiCLJ8DwnJbvZHSnfC8JmL8oRo/Xv37Se2W7UmwAH4J66d X-Developer-Key: i=haibo.chen@nxp.com; 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This is not appropriate, board can't meet this requirement do not means ADC can't work, just means ADC can't work that accurate. Here add an optimization, keep adc works even calibration failed. Changes in V2: - add patch 1 to keep one style of the hex values according to Andy Shevchenko's suggestion. - keep {} when give the calibration failed warning log. For the register 0x3A0, it is a new added register in latest imx93 RM, please refer to this link: https://www.nxp.com/products/processors-and-microcontrollers/arm-processors/i-mx-applications-processors/i-mx-9-processors/i-mx-93-applications-processor-family-arm-cortex-a55-ml-acceleration-power-efficient-mpu:i.MX93 Patch v1 also pass test on one customer board, refer to this topic: https://patchwork.kernel.org/project/linux-iio/patch/20250710073905.1105417-2-primoz.fiser@norik.com/ Signed-off-by: Haibo Chen --- Haibo Chen (2): iio: adc: imx93_adc: keep one style of the hex values iio: adc: imx93_adc: load calibrated values even calibration failed drivers/iio/adc/imx93_adc.c | 22 +++++++++++++++++----- 1 file changed, 17 insertions(+), 5 deletions(-) --- base-commit: 2674d1eadaa2fd3a918dfcdb6d0bb49efe8a8bb9 change-id: 20250812-adc-839e49d55da9 Best regards, -- Haibo Chen