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device_get_match_data() function should not be used on the device other than the one matched to the given driver, because it always returns the match_data of the matched driver. In case of exynos-clkout driver, the original code matches the OF IDs on the PARENT device, so replacing it with of_device_get_match_data() broke the driver. This has been already pointed once in commit2bc5febd05("clk: samsung: Revert "clk: samsung: exynos-clkout: Use of_device_get_match_data()""). To avoid further confusion, add a comment about this special case, which requires direct of_match_device() call to pass custom IDs array. This partially reverts commit409c39ec92. Cc: <stable@vger.kernel.org> Fixes:409c39ec92("clk: Use device_get_match_data()") Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com> Link: https://lore.kernel.org/r/20240425075628.838497-1-m.szyprowski@samsung.com Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Link: https://lore.kernel.org/r/20240430184656.357805-1-krzysztof.kozlowski@linaro.org Signed-off-by: Stephen Boyd <sboyd@kernel.org>