From patchwork Wed Mar 4 10:22:41 2026 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Russell King (Oracle)" X-Patchwork-Id: 340 Received: from pandora.armlinux.org.uk (pandora.armlinux.org.uk [78.32.30.218]) (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 684E034B194 for ; Wed, 4 Mar 2026 10:22:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=78.32.30.218 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772619772; cv=none; b=HCtSbCbkzE30G2POdEss3sEI+emksUBi9jqVU689YCAc901t9wLgsj7U040zE+2uH/9onYDNDHyPtdXhuM6iNBuJzQ2LPu1l/my0LEnUil9PRv6bl8e0m9lAMurGTgRijWXPyF18c4qUKiLJ1jsK5xl/V1PR2lSrObdlVMWEVOk= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772619772; c=relaxed/simple; bh=MpWRKi4UWumROdu2/Hsyub8lv780IiRl/dkIZNCnFKU=; h=In-Reply-To:References:From:To:Cc:Subject:MIME-Version: Content-Disposition:Content-Type:Message-Id:Date; b=grX3QUXWtYdOTeyQ+/eW4s+O/3lVNUtjEGn4xoIAEx5kloIxiP7ELg2gRSpz9X7TXh/tMpS4uJTZ6UB/gaZKV+eEH6UtRFDEVwrMsdvj9PULc9weiEQXqcd1hEdt+0kVcgkHxiSGZGCvOKrRg76PCZQy7Se71AXRrXfeR4G65eo= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=armlinux.org.uk; spf=none smtp.mailfrom=armlinux.org.uk; dkim=pass (2048-bit key) header.d=armlinux.org.uk header.i=@armlinux.org.uk header.b=pvhRUhSC; arc=none smtp.client-ip=78.32.30.218 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=armlinux.org.uk Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=armlinux.org.uk Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=armlinux.org.uk header.i=@armlinux.org.uk header.b="pvhRUhSC" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=armlinux.org.uk; s=pandora-2019; h=Date:Sender:Message-Id:Content-Type: Content-Transfer-Encoding:MIME-Version:Subject:Cc:To:From:References: In-Reply-To:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Id:List-Help: List-Unsubscribe:List-Subscribe:List-Post:List-Owner:List-Archive; bh=52X/BulkGNjlU03mY+rQgB6PxxV/PyTPUJEYegWdRoA=; b=pvhRUhSCwKSrU0FHSuokqIX3uG ZkPYB7XI7k1n+B8DKM2hah20K5GSGmCZ1q2kagLVVQitT8WHkUE+nzoaR+Np5z9ugFqAgE9FM8g3L Q9QuFKRnAFk+r2cYz9r9YiLSCjm9YlldKFeOxYdT2T7Sn8SGWN4uYICNsK+/0m0/TaQiuJ2Lx0sPe Lq9tscgSqhtUZXKt6Cf+LtjUU/553bZzsjDFZanAMoA4xdEbDmJJLyiUZXRk/Qc4YOnP3RHKNgO6z OEGlxa0kkHZrc2VP7UBlunfF8q3XFbxIwiAVJQqN8lK4GwGdde4YYcKYNhxcc6mdVd0I1ukb5mA7V kOWC0WRQ==; Received: from e0022681537dd.dyn.armlinux.org.uk ([fd8f:7570:feb6:1:222:68ff:fe15:37dd]:43038 helo=rmk-PC.armlinux.org.uk) by pandora.armlinux.org.uk with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.98.2) (envelope-from ) id 1vxjNK-000000006LP-3kJM; Wed, 04 Mar 2026 10:22:42 +0000 Received: from rmk by rmk-PC.armlinux.org.uk with local (Exim 4.98.2) (envelope-from ) id 1vxjNJ-0000000Br18-3sVv; Wed, 04 Mar 2026 10:22:41 +0000 In-Reply-To: References: From: "Russell King (Oracle)" To: Andrew Lunn Cc: Alexandre Torgue , Andrew Lunn , Chen-Yu Tsai , "David S. Miller" , Eric Dumazet , Jakub Kicinski , linux-arm-kernel@lists.infradead.org, linux-stm32@st-md-mailman.stormreply.com, linux-sunxi@lists.linux.dev, netdev@vger.kernel.org, Paolo Abeni , Samuel Holland Subject: [PATCH net-next 3/8] net: stmmac: mdio: simplify MDC clock divisor lookup Precedence: bulk X-Mailing-List: linux-sunxi@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Disposition: inline Message-Id: Sender: Russell King Date: Wed, 04 Mar 2026 10:22:41 +0000 Status: O As each lookup now iterates over each table in the same way, simplfy the code to select the table, and then walk that table. Signed-off-by: Russell King (Oracle) --- .../net/ethernet/stmicro/stmmac/stmmac_mdio.c | 27 +++++++------------ 1 file changed, 10 insertions(+), 17 deletions(-) diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c index 6292911fb54b..55dd3e07223d 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_mdio.c @@ -535,6 +535,7 @@ static const struct stmmac_clk_rate stmmac_xgmac_csr_to_mdc[] = { */ static u32 stmmac_clk_csr_set(struct stmmac_priv *priv) { + const struct stmmac_clk_rate *rates; unsigned long clk_rate; u32 value = ~0; int i; @@ -548,26 +549,18 @@ static u32 stmmac_clk_csr_set(struct stmmac_priv *priv) * the frequency of clk_csr_i. So we do not change the default * divider. */ - for (i = 0; stmmac_std_csr_to_mdc[i].rate; i++) - if (clk_rate > stmmac_std_csr_to_mdc[i].rate) + rates = stmmac_std_csr_to_mdc; + if (priv->plat->flags & STMMAC_FLAG_HAS_SUN8I) + rates = stmmac_sun8i_csr_to_mdc; + if (priv->plat->core_type == DWMAC_CORE_XGMAC) + rates = stmmac_xgmac_csr_to_mdc; + + for (i = 0; rates[i].rate; i++) + if (clk_rate > rates[i].rate) break; - if (stmmac_std_csr_to_mdc[i].cr != (u8)~0) + if (rates[i].cr != (u8)~0) value = stmmac_std_csr_to_mdc[i].cr; - if (priv->plat->flags & STMMAC_FLAG_HAS_SUN8I) { - for (i = 0; stmmac_sun8i_csr_to_mdc[i].rate; i++) - if (clk_rate > stmmac_sun8i_csr_to_mdc[i].rate) - break; - value = stmmac_sun8i_csr_to_mdc[i].cr; - } - - if (priv->plat->core_type == DWMAC_CORE_XGMAC) { - for (i = 0; stmmac_xgmac_csr_to_mdc[i].rate; i++) - if (clk_rate > stmmac_xgmac_csr_to_mdc[i].rate) - break; - value = stmmac_xgmac_csr_to_mdc[i].cr; - } - return value; }