Re: [PATCH v5 2/3] iio: adc: sophgo-saradc: Add driver for Sophgo CV1800B SARADC

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Hello, thank you for these fixes, I just wanted to add something below.

Le 03/09/2024 à 9:05 PM, Jonathan Cameron a écrit :
On Mon, 2 Sep 2024 23:36:59 +0300
Andy Shevchenko <andy.shevchenko@xxxxxxxxx> wrote:

Thu, Aug 29, 2024 at 02:31:51PM +0200, Thomas Bonnefille kirjoitti:
This adds a driver for the Sophgo CV1800B SARADC.

...

+		init_completion(&saradc->completion);
+		ret = devm_request_irq(&pdev->dev, saradc->irq,
+				       cv1800b_adc_interrupt_handler, 0,
+				       dev_name(&pdev->dev), saradc);
+		if (ret)
+			return ret;
+
+		writel(1, saradc->regs + CV1800B_ADC_INTR_EN_REG);

BIT(0)

Maybe on that - would need to compare with datasheet to know how it's
described. In theory that might not be a mask.

Indeed, in this case "CV1800B_ADC_INTR_EN_REG" is the register that enables the interrupts.
So here what I dis is to set this register to 1 (ON).



+	}
+
+	ret = devm_mutex_init(&pdev->dev, &saradc->lock);
+	if (ret)
+		return ret;

+ blank line?
That one I'd done already.
Anyhow tweaked and pushed out again.


Jonathan


+	writel(FIELD_PREP(CV1800B_MASK_STARTUP_CYCLE, 15) |
+	       FIELD_PREP(CV1800B_MASK_SAMPLE_WINDOW, 15) |
+	       FIELD_PREP(CV1800B_MASK_CLKDIV, 1) |
+	       FIELD_PREP(CV1800B_MASK_COMPARE_CYCLE, 15),
+	       saradc->regs + CV1800B_ADC_CYC_SET_REG);
+
+	return devm_iio_device_register(&pdev->dev, indio_dev);
+}


Thomas




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