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Marek Vasut authored
Replace the ad-hoc reg_output output register caching with generic regcache cache. Drop pca953x_write_single() which is no longer used. This reduces code duplication. Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com> Cc: Bartosz Golaszewski <bgolaszewski@baylibre.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
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