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In preparation to support fallback to an alternative output format, e.g. YUV420, when RGB cannot be used for any of the available color depths, move the bpc try loop out of hdmi_compute_config() and, instead, make it part of hdmi_compute_format(), while adding a new parameter to the latter holding the output format to be checked and eventually set. Since this helper now also changes hdmi.output_bpc in addition to hdmi.output_format, highlight the extended functionality by renaming it to hdmi_compute_format_bpc(). This improves code reusability and further extensibility, without introducing any functional changes. Reviewed-by: Maxime Ripard <mripard@kernel.org> Signed-off-by: Cristian Ciocaltea <cristian.ciocaltea@collabora.com> Link: https://lore.kernel.org/r/20250527-hdmi-conn-yuv-v5-5-74c9c4a8ac0c@collabora.com Signed-off-by: Maxime Ripard <mripard@kernel.org>