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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 3B643C433F5 for ; Sun, 9 Oct 2022 22:57:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234149AbiJIW5U (ORCPT ); Sun, 9 Oct 2022 18:57:20 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49050 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234043AbiJIWyn (ORCPT ); Sun, 9 Oct 2022 18:54:43 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6268B17585; Sun, 9 Oct 2022 15:29:53 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 9922560CF5; Sun, 9 Oct 2022 22:25:37 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 9AB49C433D6; Sun, 9 Oct 2022 22:25:35 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1665354337; bh=sX2gRoFUhS/b17jy2aWNfgFBlBHg0RqVEUsQmHyGTCo=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Hiab79XMDkcTdvnKM/EGcHz3njUlEOPYl92avykRIRP/kERKQvKS63XW1C5algamQ ub4cdThiVRj1ojD6Ng8RUAOVrjXk1232yihXZ04Y162YBrlFEyfY19gxS3tGIC8yzR y9wNlGn6VCZLlqngvh5z3+I6dRsp/hTZlY/QKZaOSk5mV3afkIraOxuN/Dz8VCBxu/ Y1ZTYwUFOMUCvMh+WCw57/8kfwLE2FwZeJFD289X34tdzYr1KzWBYv9pQgkh1ZqH/v xZJJrtaATNaQ3gJzB/eu6aur53oL/cRtwFQsf+Mq9z0BJUJnXJ8+DAFix3raS/7lnf BctnpgyWJ0qoA== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Daniel Golle , Serge Vasilugin , Stanislaw Gruszka , Kalle Valo , Sasha Levin , helmut.schaa@googlemail.com, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, linux-wireless@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH AUTOSEL 4.19 20/25] wifi: rt2x00: set SoC wmac clock register Date: Sun, 9 Oct 2022 18:24:25 -0400 Message-Id: <20221009222436.1219411-20-sashal@kernel.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20221009222436.1219411-1-sashal@kernel.org> References: <20221009222436.1219411-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Daniel Golle [ Upstream commit cbde6ed406a51092d9e8a2df058f5f8490f27443 ] Instead of using the default value 33 (pci), set US_CYC_CNT init based on Programming guide: If available, set chipset bus clock with fallback to cpu clock/3. Reported-by: Serge Vasilugin Signed-off-by: Daniel Golle Acked-by: Stanislaw Gruszka Signed-off-by: Kalle Valo Link: https://lore.kernel.org/r/3e275d259f476f597dab91a9c395015ef3fe3284.1663445157.git.daniel@makrotopia.org Signed-off-by: Sasha Levin --- .../net/wireless/ralink/rt2x00/rt2800lib.c | 21 +++++++++++++++++++ 1 file changed, 21 insertions(+) diff --git a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c index b8224b215532..9469517ac65f 100644 --- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c +++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c @@ -5570,6 +5570,27 @@ static int rt2800_init_registers(struct rt2x00_dev *rt2x00dev) reg = rt2800_register_read(rt2x00dev, US_CYC_CNT); rt2x00_set_field32(®, US_CYC_CNT_CLOCK_CYCLE, 125); rt2800_register_write(rt2x00dev, US_CYC_CNT, reg); + } else if (rt2x00_is_soc(rt2x00dev)) { + struct clk *clk = clk_get_sys("bus", NULL); + int rate; + + if (IS_ERR(clk)) { + clk = clk_get_sys("cpu", NULL); + + if (IS_ERR(clk)) { + rate = 125; + } else { + rate = clk_get_rate(clk) / 3000000; + clk_put(clk); + } + } else { + rate = clk_get_rate(clk) / 1000000; + clk_put(clk); + } + + reg = rt2800_register_read(rt2x00dev, US_CYC_CNT); + rt2x00_set_field32(®, US_CYC_CNT_CLOCK_CYCLE, rate); + rt2800_register_write(rt2x00dev, US_CYC_CNT, reg); } reg = rt2800_register_read(rt2x00dev, HT_FBK_CFG0); -- 2.35.1