gpu: ipu-v3: turns out the IPU can only downsize 4:1
The value for downsizing 8:1 is marked as reserved in the technical reference manual and the documentation states downsizing capability up to 4:1 only. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
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@ -297,8 +297,8 @@ static int calc_resize_coeffs(struct ipu_ic *ic,
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return -EINVAL;
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return -EINVAL;
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}
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}
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/* Cannot downsize more than 8:1 */
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/* Cannot downsize more than 4:1 */
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if ((out_size << 3) < in_size) {
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if ((out_size << 2) < in_size) {
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dev_err(ipu->dev, "Unsupported downsize\n");
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dev_err(ipu->dev, "Unsupported downsize\n");
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return -EINVAL;
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return -EINVAL;
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}
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}
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