From nobody Tue Dec 2 00:46:41 2025 Received: from sender3-pp-f112.zoho.com (sender3-pp-f112.zoho.com [136.143.184.112]) (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 4103B2FBE0D; Mon, 24 Nov 2025 11:07:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=pass smtp.client-ip=136.143.184.112 ARC-Seal: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763982457; cv=pass; b=uF5ZWG70SvrbCBd1enf1VDRrEE0nHz8GEt5zA8OvP9zqI92/1h0R1FCSknpjFU3WXhE2XLedGPXUN8UU7+Y1/BDmMHQOmlcH6DJFhpZXgpfuHvThTIP6SlBuxMshxx7E9w+WM5880KYTbPQpTejkvofvoBTrfxfHhxcoQgcuCFU= ARC-Message-Signature: i=2; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1763982457; c=relaxed/simple; bh=6F2kVSEWewRSGTRLy4D+6o7C5e8oIkIlwz3EdliBxTM=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=rQ1bH6Qszq+cbRxdJULpTjI+jFToNEKlcTDHLxRePbKqcVZpEhRYNcB2tOoBwd4KONc2J+5oLNCru7eqCRCsFfDZjv7cwWEUUhul8K6Drmb+svJU3aIdTKwUjhTnU1XXz07jf8dUr4a7qG0mk1jxwDWMcHciV+ns7w4dBEFUEjs= ARC-Authentication-Results: i=2; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=collabora.com; spf=pass smtp.mailfrom=collabora.com; dkim=pass (1024-bit key) header.d=collabora.com header.i=nicolas.frattaroli@collabora.com header.b=AbFR2dWG; arc=pass smtp.client-ip=136.143.184.112 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 (1024-bit key) header.d=collabora.com header.i=nicolas.frattaroli@collabora.com header.b="AbFR2dWG" ARC-Seal: i=1; a=rsa-sha256; t=1763982439; cv=none; d=zohomail.com; s=zohoarc; b=CbICZw+MJLYvDM75sIfnRqr2fQ91fmNYtir5j9yJLOmhLrEZDyZeM0mJ7ETOgQi82FE5ryyxrMo8qwNY+a65frh+aCiYJGMyMhtOC+QYdKZYI4HDUG+YLjF6xDCNm0G2j0svY/ir7cklB4tW6jmeSo6N9v222P1wEb7M1x2lsm4= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1763982439; h=Content-Type:Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:MIME-Version:Message-ID:References:Subject:Subject:To:To:Message-Id:Reply-To; bh=9c3Qpc7AsTRxWwpMRyYkuInfLdtrj7kwxB62DhZpoe8=; b=i3gBuUhesyaZ61vargUjnt8QzA7kpAtaYe0e5ub4wZ1HtAzRm2az09KbCboHtLBR7zSjSIVCWHZ8cjk0kRm7HeIzv3aMntpZETntLdW7fT2/Wg/XXagLS7jcTLAlnpRlwdF/vOJ2QP66Ypi33D0lzzuHd3hBZNrS6YfbI+DmGKI= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass header.i=collabora.com; spf=pass smtp.mailfrom=nicolas.frattaroli@collabora.com; dmarc=pass header.from= DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; t=1763982439; s=zohomail; d=collabora.com; i=nicolas.frattaroli@collabora.com; h=From:From:Date:Date:Subject:Subject:MIME-Version:Content-Type:Content-Transfer-Encoding:Message-Id:Message-Id:References:In-Reply-To:To:To:Cc:Cc:Reply-To; bh=9c3Qpc7AsTRxWwpMRyYkuInfLdtrj7kwxB62DhZpoe8=; b=AbFR2dWGm4T/wE7qV5gHcdokKuzuKOQWD6pN1nurdR3VqNMf1l3314XxXgqbFh3v 1i618vg7bx8ghfIZCoke0Z0LIAMZqu5njm0Ni2j95LELOdD9+VlahcIO1Mj3zAZKYuU HDtZ3s9Dsnlo3N+h5tmE7BkJG2UVXFtgdI2knhKU= Received: by mx.zohomail.com with SMTPS id 1763982437295434.8072143379791; Mon, 24 Nov 2025 03:07:17 -0800 (PST) From: Nicolas Frattaroli Date: Mon, 24 Nov 2025 12:06:55 +0100 Subject: [PATCH v2 06/13] soc: mediatek: mtk-dvfsrc: Add a new callback for calc_dram_bw Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20251124-mt8196-dvfsrc-v2-6-d9c1334db9f3@collabora.com> References: <20251124-mt8196-dvfsrc-v2-0-d9c1334db9f3@collabora.com> In-Reply-To: <20251124-mt8196-dvfsrc-v2-0-d9c1334db9f3@collabora.com> To: Rob Herring , Krzysztof Kozlowski , Conor Dooley , Matthias Brugger , AngeloGioacchino Del Regno , Henry Chen , Georgi Djakov Cc: kernel@collabora.com, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, linux-pm@vger.kernel.org, Nicolas Frattaroli X-Mailer: b4 0.14.3 From: AngeloGioacchino Del Regno In preparation for adding support for DVFSRC Version 4, add a new callback for calculating the dram bandwidth, assign the current calculation algo to all of the currently supported SoCs, and use this in __dvfsrc_set_dram_bw_v1(). Signed-off-by: AngeloGioacchino Del Regno Signed-off-by: Nicolas Frattaroli --- drivers/soc/mediatek/mtk-dvfsrc.c | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) diff --git a/drivers/soc/mediatek/mtk-dvfsrc.c b/drivers/soc/mediatek/mtk-d= vfsrc.c index a684e405daf7..3cbccbb7469a 100644 --- a/drivers/soc/mediatek/mtk-dvfsrc.c +++ b/drivers/soc/mediatek/mtk-dvfsrc.c @@ -73,6 +73,7 @@ struct mtk_dvfsrc { struct dvfsrc_soc_data { const int *regs; const struct dvfsrc_opp_desc *opps_desc; + u32 (*calc_dram_bw)(struct mtk_dvfsrc *dvfsrc, int type, u64 bw); u32 (*get_target_level)(struct mtk_dvfsrc *dvfsrc); u32 (*get_current_level)(struct mtk_dvfsrc *dvfsrc); u32 (*get_vcore_level)(struct mtk_dvfsrc *dvfsrc); @@ -274,10 +275,15 @@ static void dvfsrc_set_vscp_level_v2(struct mtk_dvfsr= c *dvfsrc, u32 level) dvfsrc_writel(dvfsrc, DVFSRC_VCORE, val); } =20 +static u32 dvfsrc_calc_dram_bw_v1(struct mtk_dvfsrc *dvfsrc, int type, u64= bw) +{ + return (u32)div_u64(bw, 100 * 1000); +} + static void __dvfsrc_set_dram_bw_v1(struct mtk_dvfsrc *dvfsrc, u32 reg, int type, u16 max_bw, u16 min_bw, u64 bw) { - u32 new_bw =3D (u32)div_u64(bw, 100 * 1000); + u32 new_bw =3D dvfsrc->dvd->calc_dram_bw(dvfsrc, type, bw); =20 /* If bw constraints (in mbps) are defined make sure to respect them */ if (max_bw) @@ -519,6 +525,7 @@ static const struct dvfsrc_opp_desc dvfsrc_opp_mt8183_d= esc[] =3D { static const struct dvfsrc_soc_data mt8183_data =3D { .opps_desc =3D dvfsrc_opp_mt8183_desc, .regs =3D dvfsrc_mt8183_regs, + .calc_dram_bw =3D dvfsrc_calc_dram_bw_v1, .get_target_level =3D dvfsrc_get_target_level_v1, .get_current_level =3D dvfsrc_get_current_level_v1, .get_vcore_level =3D dvfsrc_get_vcore_level_v1, @@ -549,6 +556,7 @@ static const struct dvfsrc_opp_desc dvfsrc_opp_mt8195_d= esc[] =3D { static const struct dvfsrc_soc_data mt8195_data =3D { .opps_desc =3D dvfsrc_opp_mt8195_desc, .regs =3D dvfsrc_mt8195_regs, + .calc_dram_bw =3D dvfsrc_calc_dram_bw_v1, .get_target_level =3D dvfsrc_get_target_level_v2, .get_current_level =3D dvfsrc_get_current_level_v2, .get_vcore_level =3D dvfsrc_get_vcore_level_v2, --=20 2.52.0