From mboxrd@z Thu Jan 1 00:00:00 1970 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 AB340CD3445 for ; Fri, 8 May 2026 15:33:56 +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=oDpUFVubUhLjiPJb1eA9mXwL9cKm4D7iCqVyZ/+IIRQ=; b=jXV4ELObndc82ewWJW4K358ARI PNQn8djMKwH29ICB+FXycFjWY0gDKTWkZ6/gpeXm+uKquFukpiVFGqXBJFNQEiMMRPT+Ia1kHdyyu vt4c/td+co+0DzxuF+YmZZ3yYgbCaia/JGEEY58EL+/SluauWb/O7ckpjg5+f7NoHAvJEtKH64EXF HoMHbdTfLJaowKUmm73czqUA2anDN5ifMY3J7ABBjmziEuepWE3E3gw3EqKg6lvZGoqQooUWl30QY KJZWsCk9o2xiyev2N+l7nmfROmLYPbsf7PmSucVtkiqL/8aojIP2TkLAYPOt9+2b6sD6GuVqgIg5Y 6x21HeAQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wLND1-00000006rAq-2XUq; Fri, 08 May 2026 15:33:47 +0000 Received: from desiato.infradead.org ([2001:8b0:10b:1:d65d:64ff:fe57:4e05]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1wLNCv-00000006r6k-2bhF for linux-arm-kernel@bombadil.infradead.org; Fri, 08 May 2026 15:33:45 +0000 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=desiato.20200630; h=Content-Transfer-Encoding:MIME-Version :References:In-Reply-To:Message-ID:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=oDpUFVubUhLjiPJb1eA9mXwL9cKm4D7iCqVyZ/+IIRQ=; b=kW6wtzSAH3nRw6imtj3gE5lZMf GoamJ6p1yMrtbvNbCWF8Au7otNGB1kyJjUNGMTfANTI6S6gQ24k1dVZRU4rJ2Ue6blGxnyWjoiu6H 9fjE1UGM/IrLuzDtIXpm1wEoMGUB7lLtkkZmi3lLPXuOvxvVBsASwmdAr2Ymtju3ElYTVVOohlby+ aYwkYw4d6T37PqVd2RbB6U3/crsrBervEkEmyClrbbdqql25hNFb2Uihx+PCgrVXI1tSZNaldFSOP qhGCq4j+ZTjeOyCXCRZPCRXyNxgdKNgOQ7dvE7dM7e0486BcfMSeahkVjRvmP9RQvLsr+fCBW3Me1 y9lbwvuw==; Received: from foss.arm.com ([217.140.110.172]) by desiato.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1wLNCs-00000006iI2-1Wwv for linux-arm-kernel@lists.infradead.org; Fri, 08 May 2026 15:33:40 +0000 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 6E27B359E; Fri, 8 May 2026 08:33:32 -0700 (PDT) Received: from pluto.fritz.box (usa-sjc-mx-foss1.foss.arm.com [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 77E8F3F836; Fri, 8 May 2026 08:33:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=arm.com; s=foss; t=1778254417; bh=rgpT6JeYUUTF8dPGQi0+aswaXnBqWOyh+njR4c8YQ2g=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=kIw2Ap/61KRo21Tkwh1A2uyf3Iz/VBqQM0L6YOm3EwB38E0lgrOuMb0ZD2KvNURrT gs1rG6dhWjwp7kDVtli+ZKb2Dw9XRC0rmc1bSz96jbOta+TFeNFN3kkeVRhaWPN7Iv 9YjMSo1mlJr5Kv0Y1Tv0YaDmj7pyv1C1SHwzIA+4= From: Cristian Marussi To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, arm-scmi@vger.kernel.org, linux-clk@vger.kernel.org, linux-renesas-soc@vger.kernel.org Cc: sudeep.holla@arm.com, philip.radford@arm.com, james.quinlan@broadcom.com, f.fainelli@gmail.com, vincent.guittot@linaro.org, etienne.carriere@foss.st.com, peng.fan@oss.nxp.com, michal.simek@amd.com, geert+renesas@glider.be, kuninori.morimoto.gx@renesas.com, marek.vasut+renesas@gmail.com, Cristian Marussi , Brian Masney , Michael Turquette , Stephen Boyd Subject: [PATCH v4 03/15] clk: scmi: Use new determine_rate clock operation Date: Fri, 8 May 2026 16:32:48 +0100 Message-ID: <20260508153300.2224715-4-cristian.marussi@arm.com> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260508153300.2224715-1-cristian.marussi@arm.com> References: <20260508153300.2224715-1-cristian.marussi@arm.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260508_163339_026073_E76437D4 X-CRM114-Status: GOOD ( 16.65 ) 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 Use the Clock protocol layer determine_rate logic to calculate the closest rate that can be supported by a specific clock. No functional change. Cc: Brian Masney Cc: Michael Turquette Cc: Stephen Boyd Cc: linux-clk@vger.kernel.org Signed-off-by: Cristian Marussi --- @brian: I'd modify further this clk-scmi driver, with a patch on top of this series, to properly use your new CLK_ROUNDING_NOOP flag once your series AND another (already reviewed) series on clk-scmi from Peng are in. --- drivers/clk/clk-scmi.c | 31 ++++++------------------------- 1 file changed, 6 insertions(+), 25 deletions(-) diff --git a/drivers/clk/clk-scmi.c b/drivers/clk/clk-scmi.c index b6a12f3bc123..c223e4ef1dd1 100644 --- a/drivers/clk/clk-scmi.c +++ b/drivers/clk/clk-scmi.c @@ -10,7 +10,6 @@ #include #include #include -#include #include #include @@ -57,35 +56,17 @@ static unsigned long scmi_clk_recalc_rate(struct clk_hw *hw, static int scmi_clk_determine_rate(struct clk_hw *hw, struct clk_rate_request *req) { - u64 fmin, fmax, ftmp; + int ret; struct scmi_clk *clk = to_scmi_clk(hw); /* - * We can't figure out what rate it will be, so just return the - * rate back to the caller. scmi_clk_recalc_rate() will be called - * after the rate is set and we'll know what rate the clock is + * If we could not get a better rate scmi_clk_recalc_rate() will be + * called after the rate is set and we'll know what rate the clock is * running at then. */ - if (clk->info->rate_discrete) - return 0; - - fmin = clk->info->range.min_rate; - fmax = clk->info->range.max_rate; - if (req->rate <= fmin) { - req->rate = fmin; - - return 0; - } else if (req->rate >= fmax) { - req->rate = fmax; - - return 0; - } - - ftmp = req->rate - fmin; - ftmp += clk->info->range.step_size - 1; /* to round up */ - ftmp = div64_ul(ftmp, clk->info->range.step_size); - - req->rate = ftmp * clk->info->range.step_size + fmin; + ret = scmi_proto_clk_ops->determine_rate(clk->ph, clk->id, &req->rate); + if (ret) + return ret; return 0; } -- 2.53.0