From patchwork Tue Dec 17 15:43:29 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: AngeloGioacchino Del Regno X-Patchwork-Id: 13912238 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id DB185E77184 for ; Tue, 17 Dec 2024 17:10:11 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Content-Transfer-Encoding: MIME-Version:References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From: Reply-To:Content-Type:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=XpLx2OwYMIkRjIAXzp8thVzRfANzIQQRNJW0pHTLUhs=; b=jH9YCHsKvrsycf5cmMb2Jw2zi6 VYAIDKMfWv5vGqN7n5tQ6plU3xJaGTSJ+2tuiLW9VP0fa7nqUciYGL7VR5nEi1ZF8OKEEcVbbPRC+ 2xuEWrFIn/tylrz94OXjcI4CR6pOiV62yzSFe0MTy1B5uNx+amydOZMqn7nx6JyobOd1UisCaQMz0 Z+W9npBjhBwstBIZ9WCAJIPm6dH6N+UrvkM7rH2nVC5MO83dvUYE0GqZZ71J7JncZRLKUOWAkWqqf cWF1ao0sAwWJi5EpfVooSU408GCQLYGZNRN6UBgK1fgIMwhFpDdVfJyd/VfXJyArqCKDqkvZC5T0c zXHM/8Tg==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1tNb56-0000000EHlO-1R8W; Tue, 17 Dec 2024 17:10:00 +0000 Received: from bali.collaboradmins.com ([148.251.105.195]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1tNZk8-0000000E01u-1zpr; Tue, 17 Dec 2024 15:44:17 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1734450255; bh=OEFJhnGi56R7PJFkzZXIALf3gvTaB5bUdb5bS7WVCq0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=ceSIYpKk8TPS/PsUspupzXo39GETvtMPb9+m5ZNUVWRPx6GYXgob1GlC2rFKbTvok eN9LNQjvHu/URM8M8KyjeZstvuxt5STiy8/8CN9UUhK3YN5wAocGMDOxtAW4TDxW/G 6zNsGyMENIFYOlxgWCIrgeFYp4SrqfS2T/WVaWqK4Dw5H5f/b5a+PiZKq9hYaic0nZ F1fb1R0yovvp/YemFrfDWcDaqpoM6gT7u+rts3b+YW1oOZTKYMmO6FcZT6Tv2+gJ2A f9TSYW7n2/cxqbBLM5RF51rUikPyRQ3Un/sA9ikfOclArAS9Qm6Q/vzsdreiIfZDJN ieDbsjNxyp71A== 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 DD3B917E37B2; Tue, 17 Dec 2024 16:44:13 +0100 (CET) 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 Subject: [PATCH v3 17/33] drm/mediatek: mtk_hdmi: Move N/CTS setting to new function Date: Tue, 17 Dec 2024 16:43:29 +0100 Message-ID: <20241217154345.276919-18-angelogioacchino.delregno@collabora.com> X-Mailer: git-send-email 2.47.0 In-Reply-To: <20241217154345.276919-1-angelogioacchino.delregno@collabora.com> References: <20241217154345.276919-1-angelogioacchino.delregno@collabora.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241217_074416_664835_7051E2A6 X-CRM114-Status: GOOD ( 10.16 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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. 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 f60c4effe905..ef8dfcb77318 100644 --- a/drivers/gpu/drm/mediatek/mtk_hdmi.c +++ b/drivers/gpu/drm/mediatek/mtk_hdmi.c @@ -682,6 +682,13 @@ 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) { @@ -712,8 +719,7 @@ 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);