From nobody Fri Dec 19 19:21:19 2025 Received: from bali.collaboradmins.com (bali.collaboradmins.com [148.251.105.195]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id F2765294A1F; Tue, 15 Apr 2025 10:43:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=148.251.105.195 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744713831; cv=none; b=YvpQUbThUcvTB/uBQer3qF1BMTN4TDrXvYrt6zrl5HrbhGAnqM02r2QcEbs2wnzs3byy2hqQvTQrlZ//SMsK7l0hvevjfgZRf3aeS0zg/A8CGW1mvN2xdf53OA53P7BGDff+TcR+ZYzb4gPPcLaKG3gCAhUhAd8O00CxQ34E3tU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1744713831; c=relaxed/simple; bh=XfKa/nBZ3BP2uRN0ayGxBx0GOxkKJPowuF01+8IacLY=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=XpP1BRlQgitVZre+4jwlHOgQFe97UnHm3pS9HFuRoTa5+FeLHgRWzXotTvMOWus4obOvTLJimtOV7RBw35E2mj6IYHkJ+O377D4wDq34rjP26/+FN4dEYkjSQVbS6cOzeDHCEn2yqj4ptDqmmoeLeQLQBY+x3zPdgE7cMknFDuY= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b=fl306YCd; arc=none smtp.client-ip=148.251.105.195 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=collabora.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=collabora.com header.i=@collabora.com header.b="fl306YCd" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1744713828; bh=XfKa/nBZ3BP2uRN0ayGxBx0GOxkKJPowuF01+8IacLY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=fl306YCdgR11k+ZPR67wzumuqJU1jrm1lqtHTXsrBNx5whPfbr1+c0aFprK0wN8Yu 1pl8WEbS1A5r65P2ne+A7HygiBgOk8Y0wtDFFjgHqiRyeze04ncF9TdVntYoBPbLaf i/v7u6/3YvzUwQ2QWLNR7HCaLxQrfDucd7gv/xSyWAaYdIvn5h+o7NvYqioxM7JGPw XGNFn7dt78ZjzfozCIyIqXKBa8CtX+eF/N9T1rqd64khHM4JnmmtSTIi511pv8jrzd iT5F2+2RyOOODhvS/3+aRM5k5Z5R8F956/+MvGUNkQxfEtCH1Qe6/Fi9/0xyKlAQUf pNWMOTRfksDrQ== Received: from IcarusMOD.eternityproject.eu (2-237-20-237.ip236.fastwebnet.it [2.237.20.237]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: kholk11) by bali.collaboradmins.com (Postfix) with ESMTPSA id B5F6D17E1022; Tue, 15 Apr 2025 12:43:46 +0200 (CEST) From: AngeloGioacchino Del Regno To: chunkuang.hu@kernel.org Cc: p.zabel@pengutronix.de, airlied@gmail.com, simona@ffwll.ch, maarten.lankhorst@linux.intel.com, mripard@kernel.org, tzimmermann@suse.de, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, matthias.bgg@gmail.com, angelogioacchino.delregno@collabora.com, ck.hu@mediatek.com, jitao.shi@mediatek.com, jie.qiu@mediatek.com, junzhi.zhao@mediatek.com, dri-devel@lists.freedesktop.org, linux-mediatek@lists.infradead.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kernel@collabora.com, dmitry.baryshkov@linaro.org, lewis.liao@mediatek.com, ives.chenjh@mediatek.com, tommyyl.chen@mediatek.com, jason-jh.lin@mediatek.com Subject: [PATCH v9 11/23] drm/mediatek: mtk_hdmi: Move N/CTS setting to new function Date: Tue, 15 Apr 2025 12:43:09 +0200 Message-ID: <20250415104321.51149-12-angelogioacchino.delregno@collabora.com> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250415104321.51149-1-angelogioacchino.delregno@collabora.com> References: <20250415104321.51149-1-angelogioacchino.delregno@collabora.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" 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 --- drivers/gpu/drm/mediatek/mtk_hdmi.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/mediatek/mtk_hdmi.c b/drivers/gpu/drm/mediatek= /mtk_hdmi.c index 60ec16f6827f..0933b22b81ff 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 aud= io_sample_rate, 128 * audio_sample_rate); } =20 +static void mtk_hdmi_get_ncts(unsigned int sample_rate, unsigned int clock, + unsigned int *n, unsigned int *cts) +{ + *n =3D hdmi_recommended_n(sample_rate, clock); + *cts =3D 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 *h= dmi, { unsigned int n, cts; =20 - n =3D hdmi_recommended_n(sample_rate, clock); - cts =3D hdmi_expected_cts(sample_rate, clock, n); + mtk_hdmi_get_ncts(sample_rate, clock, &n, &cts); =20 dev_dbg(hdmi->dev, "%s: sample_rate=3D%u, clock=3D%d, cts=3D%u, n=3D%u\n", __func__, sample_rate, clock, n, cts); --=20 2.49.0