From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 31B9B43AB6 for ; Wed, 15 Nov 2023 20:47:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="KX9ewAZg" Received: by smtp.kernel.org (Postfix) with ESMTPSA id DA8FBC116B1; Wed, 15 Nov 2023 20:47:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1700081279; bh=bJNRL5OnLkp5GfzPVxPPlmYJoe45rPmHrmaDjlucwYQ=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=KX9ewAZgtOsqBhnvNdHdFZAI/WOSOomkYphXPY9zoOgvjdGYCWLtOJCGJP1r9Kibc j942/3J5NBpQtiEz3AQeGtqP9/Emgp44tuCZlumhjA3ZygsAt6IVhXFi44KNMtnP20 lQyyUgem93/S/nqIOzwC93RsVRhgKInBfP15zi2w= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Geert Uytterhoeven , Sasha Levin Subject: [PATCH 5.15 060/244] clk: renesas: rzg2l: Simplify multiplication/shift logic Date: Wed, 15 Nov 2023 15:34:12 -0500 Message-ID: <20231115203551.955939762@linuxfoundation.org> X-Mailer: git-send-email 2.42.1 In-Reply-To: <20231115203548.387164783@linuxfoundation.org> References: <20231115203548.387164783@linuxfoundation.org> User-Agent: quilt/0.67 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Geert Uytterhoeven [ Upstream commit 29db30c45f07c929c86c40a5b85f18b69c89c638 ] "a * (1 << b)" == "a << b". No change in generated code. Signed-off-by: Geert Uytterhoeven Link: https://lore.kernel.org/r/71e1cf2e30fb2d7966fc8ec6bab23eb7e24aa1c4.1645460687.git.geert+renesas@glider.be Stable-dep-of: a2b23159499e ("clk: renesas: rzg2l: Fix computation formula") Signed-off-by: Sasha Levin --- drivers/clk/renesas/rzg2l-cpg.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/clk/renesas/rzg2l-cpg.c b/drivers/clk/renesas/rzg2l-cpg.c index 1c92e73cd2b8c..e435d88d9da89 100644 --- a/drivers/clk/renesas/rzg2l-cpg.c +++ b/drivers/clk/renesas/rzg2l-cpg.c @@ -155,7 +155,7 @@ static unsigned long rzg2l_cpg_pll_clk_recalc_rate(struct clk_hw *hw, val1 = readl(priv->base + GET_REG_SAMPLL_CLK1(pll_clk->conf)); val2 = readl(priv->base + GET_REG_SAMPLL_CLK2(pll_clk->conf)); mult = MDIV(val1) + KDIV(val1) / 65536; - div = PDIV(val1) * (1 << SDIV(val2)); + div = PDIV(val1) << SDIV(val2); return DIV_ROUND_CLOSEST_ULL((u64)parent_rate * mult, div); } -- 2.42.0