From: AngeloGioacchino Del Regno Date: Tue, 15 Apr 2025 10:43:09 +0000 (+0200) Subject: drm/mediatek: mtk_hdmi: Move N/CTS setting to new function X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=7837702058a16676cf0b0e0a83babe3cb0552cb0;p=users%2Fjedix%2Flinux-maple.git drm/mediatek: mtk_hdmi: Move N/CTS setting to new function In preparation for splitting common bits of this driver, moving the hdmi_rec_n_table struct array, and the hdmi_recommended_n(), hdmi_mode_clock_to_hz(), hdmi_expected_cts() functions, add one function called mtk_hdmi_get_ncts() that sets both N and CTS in a single call. Reviewed-by: CK Hu Signed-off-by: AngeloGioacchino Del Regno Link: https://patchwork.kernel.org/project/dri-devel/patch/20250415104321.51149-12-angelogioacchino.delregno@collabora.com/ Signed-off-by: Chun-Kuang Hu --- diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek/mtk_hdmi.c index 60ec16f6827ff..0933b22b81ff4 100644 --- a/drivers/gpu/drm/mediatek/mtk_hdmi.c +++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c @@ -675,6 +675,13 @@ static unsigned int hdmi_expected_cts(unsigned int audio_sample_rate, 128 * audio_sample_rate); } +static void mtk_hdmi_get_ncts(unsigned int sample_rate, unsigned int clock, + unsigned int *n, unsigned int *cts) +{ + *n = hdmi_recommended_n(sample_rate, clock); + *cts = hdmi_expected_cts(sample_rate, clock, *n); +} + static void do_hdmi_hw_aud_set_ncts(struct mtk_hdmi *hdmi, unsigned int n, unsigned int cts) { @@ -705,8 +712,7 @@ static void mtk_hdmi_hw_aud_set_ncts(struct mtk_hdmi *hdmi, { unsigned int n, cts; - n = hdmi_recommended_n(sample_rate, clock); - cts = hdmi_expected_cts(sample_rate, clock, n); + mtk_hdmi_get_ncts(sample_rate, clock, &n, &cts); dev_dbg(hdmi->dev, "%s: sample_rate=%u, clock=%d, cts=%u, n=%u\n", __func__, sample_rate, clock, n, cts);