ASoC: wm8940: Read chip ID when wm8940 codec probing
The wm8940 provides the chip ID information via I2C. In this patch this information is read and if not matching expected value, the probe function is aborted. This prevents from using (i.e. inserting) other wm89* modules which use the same I2C bus address. Signed-off-by:Lukasz Majewski <lukma@denx.de> Acked-by:
Charles Keepax <ckeepax@opensource.cirrus.com> Link: https://lore.kernel.org/r/20221216094624.3849278-3-lukma@denx.de Signed-off-by:
Mark Brown <broonie@kernel.org>
parent
294833fc
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