From patchwork Mon Feb 21 16:27:20 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Geert Uytterhoeven X-Patchwork-Id: 544581 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B8317C433FE for ; Mon, 21 Feb 2022 16:27:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231176AbiBUQ14 (ORCPT ); Mon, 21 Feb 2022 11:27:56 -0500 Received: from mxb-00190b01.gslb.pphosted.com ([23.128.96.19]:53836 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S238134AbiBUQ1v (ORCPT ); Mon, 21 Feb 2022 11:27:51 -0500 Received: from laurent.telenet-ops.be (laurent.telenet-ops.be [IPv6:2a02:1800:110:4::f00:19]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 89C116587 for ; Mon, 21 Feb 2022 08:27:24 -0800 (PST) Received: from ramsan.of.borg ([IPv6:2a02:1810:ac12:ed40:49dc:a1b5:3fe0:3d2b]) by laurent.telenet-ops.be with bizsmtp id xsTN2600F3YJRAw01sTNCg; Mon, 21 Feb 2022 17:27:22 +0100 Received: from rox.of.borg ([192.168.97.57]) by ramsan.of.borg with esmtps (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.93) (envelope-from ) id 1nMBX0-001Tii-4w; Mon, 21 Feb 2022 17:27:22 +0100 Received: from geert by rox.of.borg with local (Exim 4.93) (envelope-from ) id 1nMBWz-006G4O-Jh; Mon, 21 Feb 2022 17:27:21 +0100 From: Geert Uytterhoeven To: Ulf Hansson , Wolfram Sang Cc: linux-mmc@vger.kernel.org, linux-renesas-soc@vger.kernel.org, Geert Uytterhoeven Subject: [PATCH] mmc: sh_mmcif: Simplify division/shift logic Date: Mon, 21 Feb 2022 17:27:20 +0100 Message-Id: <68d689c39c769d298b53ee8cb9de0e594a2999b2.1645460780.git.geert+renesas@glider.be> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-mmc@vger.kernel.org "a / (1 << b)" == "a >> b". No change in generated code. Signed-off-by: Geert Uytterhoeven --- drivers/mmc/host/sh_mmcif.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/mmc/host/sh_mmcif.c b/drivers/mmc/host/sh_mmcif.c index 104dcd702870c423..5f9ebf045b1cb22b 100644 --- a/drivers/mmc/host/sh_mmcif.c +++ b/drivers/mmc/host/sh_mmcif.c @@ -521,8 +521,7 @@ static void sh_mmcif_clock_control(struct sh_mmcif_host *host, unsigned int clk) } dev_dbg(dev, "clk %u/%u (%u, 0x%x)\n", - (best_freq / (1 << (clkdiv + 1))), clk, - best_freq, clkdiv); + (best_freq >> (clkdiv + 1)), clk, best_freq, clkdiv); clk_set_rate(host->clk, best_freq); clkdiv = clkdiv << 16; @@ -1012,8 +1011,8 @@ static void sh_mmcif_clk_setup(struct sh_mmcif_host *host) */ host->clkdiv_map = 0x3ff; - host->mmc->f_max = f_max / (1 << ffs(host->clkdiv_map)); - host->mmc->f_min = f_min / (1 << fls(host->clkdiv_map)); + host->mmc->f_max = f_max >> ffs(host->clkdiv_map); + host->mmc->f_min = f_min >> fls(host->clkdiv_map); } else { unsigned int clk = clk_get_rate(host->clk);