From patchwork Fri Nov 17 09:42:24 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: AngeloGioacchino Del Regno X-Patchwork-Id: 13458641 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 0A9F5C5AE4A for ; Fri, 17 Nov 2023 09:43:36 +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=KpBUxqYvBKX4tX03KjbJxbiKYB0CW1q5AbspkuYc90k=; b=lDkUaIdaUBGK2+Ijnaa/Qp6B+q xsKhJPLl8isErCUgcDeHWIINutV75fwtgJC+65CYe96T1x9N5C/s79JSPX+1Vg0uS2AXViSPhXb8y oKkRCbIt81GmHkIktpYBZJs5T85p0dyJDXb5fBD8zE0YEzRhh+2RelulynUW3X6kvEO6piw9NwK37 SMUAL5mrhSAA/CUdg2U/eotaXPORj0jgkA/Vi10r++sD0Uz6jBM9UUet2bIxvMpO1QSZJs2ESTpSQ vn/8gdqFFdFaAilMEIFzQ74E+rdCxqxOV3ADmsUIi+8MwQLfH4bhkXc5aDyCppitIoUKRpoy+6Iql ps3Br0lQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.96 #2 (Red Hat Linux)) id 1r3vNt-0067e9-1K; Fri, 17 Nov 2023 09:43:33 +0000 Received: from madras.collabora.co.uk ([46.235.227.172]) by bombadil.infradead.org with esmtps (Exim 4.96 #2 (Red Hat Linux)) id 1r3vNE-006723-0N; Fri, 17 Nov 2023 09:42:53 +0000 Received: from IcarusMOD.eternityproject.eu (cola.collaboradmins.com [195.201.22.229]) (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 madras.collabora.co.uk (Postfix) with ESMTPSA id 2499C660738E; Fri, 17 Nov 2023 09:42:50 +0000 (GMT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=collabora.com; s=mail; t=1700214170; bh=XEVVBoXHkUpKz+mYu2BhuD+v7qTvXaba6bcEiQ5SYSg=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=FNlxAAIm3gRF+FzUe2j9jo7cTSLt9aHUZoWc9z2/sxKKJMTzEcnz6VpKXBmjnT/B4 MtqNPwuGUtkGHlS5HsTs0SSTZtI7syaF1AnzhVqqPBbCwxVTjnZ6vISto3CNX9XLBP NESy7rQ5yA9s/xxg0P/ItbDLKN39vVONYq8WKNPXFmLXjRxXPWEFE4c4pvOcljgnfZ BOgEM/hxOOCwJqz2M1sjaz8YwktDJEddATd6HEoufWDfalDaDFgN76XLTGIRW2QC+v 2Nku6X/RbP8oTfGzLvsjNh2GsfC2Xx/S6tXr/L7+ZPy9jPe/vG+fO/uER/+YvqaR5w 5875XSTOc6rgw== From: AngeloGioacchino Del Regno To: matthias.bgg@gmail.com Cc: krzysztof.kozlowski+dt@linaro.org, conor+dt@kernel.org, robh+dt@kernel.org, angelogioacchino.delregno@collabora.com, p.zabel@pengutronix.de, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org, kernel@collabora.com, wenst@chromium.org Subject: [PATCH v1 16/20] soc: mediatek: mtk-svs: Check if SVS mode is available in the beginning Date: Fri, 17 Nov 2023 10:42:24 +0100 Message-ID: <20231117094228.40013-17-angelogioacchino.delregno@collabora.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231117094228.40013-1-angelogioacchino.delregno@collabora.com> References: <20231117094228.40013-1-angelogioacchino.delregno@collabora.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20231117_014252_313853_75A6F5D6 X-CRM114-Status: GOOD ( 13.33 ) X-BeenThere: linux-mediatek@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-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org The svs_init01() and svs_init02() functions are already checking if the INIT01 and INIT02 modes are available - but that's done in for loops and for each SVS bank. Give those a shortcut to get out early if no SVS bank features the desired init mode: this is especially done to avoid some locking in the svs_init01(), but also to avoid multiple for loops to check the same, when no bank supports a specific mode. Signed-off-by: AngeloGioacchino Del Regno --- drivers/soc/mediatek/mtk-svs.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/drivers/soc/mediatek/mtk-svs.c b/drivers/soc/mediatek/mtk-svs.c index ae0cc22a2941..16a16c5a3f24 100644 --- a/drivers/soc/mediatek/mtk-svs.c +++ b/drivers/soc/mediatek/mtk-svs.c @@ -1400,6 +1400,16 @@ static irqreturn_t svs_isr(int irq, void *data) return IRQ_HANDLED; } +static bool svs_mode_available(struct svs_platform *svsp, u8 mode) +{ + int i; + + for (i = 0; i < svsp->bank_max; i++) + if (svsp->banks[i].mode_support & mode) + return true; + return false; +} + static int svs_init01(struct svs_platform *svsp) { struct svs_bank *svsb; @@ -1408,6 +1418,9 @@ static int svs_init01(struct svs_platform *svsp) int ret = 0, r; u32 opp_freq, opp_vboot, buck_volt, idx, i; + if (!svs_mode_available(svsp, SVSB_MODE_INIT01)) + return 0; + /* Keep CPUs' core power on for svs_init01 initialization */ cpuidle_pause_and_lock(); @@ -1575,6 +1588,9 @@ static int svs_init02(struct svs_platform *svsp) int ret; u32 idx; + if (!svs_mode_available(svsp, SVSB_MODE_INIT02)) + return 0; + for (idx = 0; idx < svsp->bank_max; idx++) { svsb = &svsp->banks[idx];