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spi: add devm_spi_optimize_message() helper
Merge series from David Lechner <dlechner@baylibre.com>: In the IIO subsystem, we are finding that it is common to call spi_optimize_message() during driver probe since the SPI message doesn't change for the lifetime of the driver. This patch adds a devm_spi_optimize_message() helper to simplify this common pattern.
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@ -4384,6 +4384,7 @@ int devm_spi_optimize_message(struct device *dev, struct spi_device *spi,
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return devm_add_action_or_reset(dev, devm_spi_unoptimize_message, msg);
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}
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EXPORT_SYMBOL_GPL(devm_spi_optimize_message);
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/**
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* spi_async - asynchronous SPI transfer
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