modify sin led gpio

hc

2024-05-13 9d77db3c730780c8ef5ccd4b66403ff5675cfe4e

 kernel/drivers/iio/afe/iio-rescale.c
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@@ -38,7 +38,7 @@
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 			    int *val, int *val2, long mask)
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 {
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 	struct rescale *rescale = iio_priv(indio_dev);
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-	unsigned long long tmp;
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+	s64 tmp;
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 	int ret;
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 	switch (mask) {
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@@ -59,10 +59,10 @@
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 			*val2 = rescale->denominator;
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 			return IIO_VAL_FRACTIONAL;
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 		case IIO_VAL_FRACTIONAL_LOG2:
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-			tmp = *val * 1000000000LL;
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-			do_div(tmp, rescale->denominator);
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+			tmp = (s64)*val * 1000000000LL;
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+			tmp = div_s64(tmp, rescale->denominator);
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 			tmp *= rescale->numerator;
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-			do_div(tmp, 1000000000LL);
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+			tmp = div_s64(tmp, 1000000000LL);
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 			*val = tmp;
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 			return ret;
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 		default:
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@@ -276,11 +276,9 @@
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 	int ret;
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 	source = devm_iio_channel_get(dev, NULL);
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-	if (IS_ERR(source)) {
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-		if (PTR_ERR(source) != -EPROBE_DEFER)
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-			dev_err(dev, "failed to get source channel\n");
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-		return PTR_ERR(source);
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-	}
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+	if (IS_ERR(source))
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+		return dev_err_probe(dev, PTR_ERR(source),
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+				     "failed to get source channel\n");
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 	sizeof_ext_info = iio_get_channel_ext_info_count(source);
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 	if (sizeof_ext_info) {
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@@ -314,7 +312,6 @@
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 	rescale->source = source;
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 	indio_dev->name = dev_name(dev);
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-	indio_dev->dev.parent = dev;
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 	indio_dev->info = &rescale_info;
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 	indio_dev->modes = INDIO_DIRECT_MODE;
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 	indio_dev->channels = &rescale->chan;