From patchwork Tue Apr 15 10:43:09 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: AngeloGioacchino Del Regno X-Patchwork-Id: 14051970 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 363BFC369AB for ; Tue, 15 Apr 2025 11:07:51 +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=9PBDQkBQgmC4PFJImKboLkglMJoGtOzuf+h34KSc2U8=; b=Nv2NyB/LgH1+Nx1gSoDs8m+lz2 pAjixIGnTViGJH/eQz+34NDfj9jHNvDNbOVyc858dDucKNoKnrxMw5Wkjf4s8L7247h8HcXjh4sTm m57r7Lq3sNMYDU4syj9dS3BmGMFTf8u6y6bUp+99pQ+xyJdvOCB4rX5ixurIFrndFB2D3b/VJlBSH 2HHbq/dCa9he9lBiAuRvDgqLw1Bui6W7xdZOk9Z3ETXcRdwhnDnTzamqyRilZUCH8VEyznrX0wpJb WZUBePZCJsHX39TCfyflvuUf5rVrQhYRGxRFrSKngSpd3S10RZnHqFhdb/D0yK9ZKudg02OUkCX0R vT0PjBog==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1u4e8j-00000005Sf7-2YoN; Tue, 15 Apr 2025 11:07:41 +0000 Received: from bali.collaboradmins.com ([2a01:4f8:201:9162::2]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1u4dld-00000005NSc-3D66; Tue, 15 Apr 2025 10:43:51 +0000 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> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250415_034349_979831_3CDBFFDC X-CRM114-Status: GOOD ( 10.15 ) 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. 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 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);