diff --git a/package/kernel/mac80211/patches/rt2x00/987-rt2x00-reduce-tx-power-to-nominal-level-on-RT6352.patch b/package/kernel/mac80211/patches/rt2x00/987-rt2x00-reduce-tx-power-to-nominal-level-on-RT6352.patch new file mode 100644 index 0000000000..f15fe7d817 --- /dev/null +++ b/package/kernel/mac80211/patches/rt2x00/987-rt2x00-reduce-tx-power-to-nominal-level-on-RT6352.patch @@ -0,0 +1,114 @@ +From patchwork Thu Dec 27 14:05:25 2018 +Content-Type: text/plain; charset="utf-8" +MIME-Version: 1.0 +Content-Transfer-Encoding: 8bit +X-Patchwork-Submitter: Tom Psyborg +X-Patchwork-Id: 10743705 +X-Patchwork-Delegate: kvalo@adurom.com +Return-Path: +Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org + [172.30.200.125]) + by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 2BC1913B5 + for ; + Thu, 27 Dec 2018 14:06:03 +0000 (UTC) +Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) + by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 1C758289EC + for ; + Thu, 27 Dec 2018 14:06:03 +0000 (UTC) +Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) + id 0E022289ED; Thu, 27 Dec 2018 14:06:03 +0000 (UTC) +X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on + pdx-wl-mail.web.codeaurora.org +X-Spam-Level: +X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, + DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI + autolearn=ham version=3.3.1 +Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) + by mail.wl.linuxfoundation.org (Postfix) with ESMTP id AE551289C6 + for ; + Thu, 27 Dec 2018 14:06:02 +0000 (UTC) +Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand + id S1729690AbeL0OFk (ORCPT + ); + Thu, 27 Dec 2018 09:05:40 -0500 +Received: from mail-wr1-f66.google.com ([209.85.221.66]:40863 "EHLO + mail-wr1-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org + with ESMTP id S1729469AbeL0OFk (ORCPT + ); + Thu, 27 Dec 2018 09:05:40 -0500 +Received: by mail-wr1-f66.google.com with SMTP id p4so18360549wrt.7 + for ; + Thu, 27 Dec 2018 06:05:39 -0800 (PST) +DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; + d=gmail.com; s=20161025; + h=from:to:cc:subject:date:message-id:mime-version + :content-transfer-encoding; + bh=if95ASzOCk1n4rkrJMt0dbDI3WwTIiBNPf8RvdMIJm8=; + b=N78BHSW85OAzpxBdY2OozZyZYjAg6qKOe0l4D2qxSMPfU6K1kgB9f8YZs5Owl9wPyh + RC88Px2yQIdVDsFm3Kww1hEalZ+bN2zLqb5+mOWGMXJyEz7VHfWg6+hpYTjHMVohLkg5 + /+OqTEwl8P17YhXJ0KdEk0aHkt4uSi19pLqD+Jp6SzPPnIY+mx6ODeIAWHi3VH6alfre + plMwZa2EAMcOUCDCygy5ShCJWhXhdeL51VIfYowahUv7xowfw7o5b1+ZihX/DoKGuvHC + hNQAg9QvDOj6lqHyynD9V0pMgGYSVx2g6MPA8uH3vceV1/vgSkaWTxboyiUylHrlMdIo + xZCQ== +X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; + d=1e100.net; s=20161025; + h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version + :content-transfer-encoding; + bh=if95ASzOCk1n4rkrJMt0dbDI3WwTIiBNPf8RvdMIJm8=; + b=EyuukiKyMQhAsnvAdNATiSxgngxugcTEOlzcC2eOk78pzv8aNJdhWE3+cJLyh1ctj1 + Z/BoIXM298pOrkekyhEZsOnxwGO1p6mrgCBXdoANHvMk93fKtlYT8zNkMZdk6zdXSqBw + bSm8fD5pgGqoLBJH0swL1lrRkHUXSsBsQgCg1YQegfYoWCgdhAnKYmj3OJca5jqfTlJq + pL84CtNEgx9GiXNvsaTU8LeFmKU4GVoMmewsR9WRmw9zSoouDXciq0DHtAoBeElHlCjZ + /8LJQvSLqhONn5xIcFjUdsq3KcqZkCQedwF8WkwVgcA8uksMyKKH0Fj5txHAkeXIyHX3 + IhpA== +X-Gm-Message-State: AJcUukdCD27qMfzN5D3LfBblTlOINVVf3zsHMXqUaYwCxv/GoSStqEqb + ha65rhfifdjaR9/NVSakmWv3ZuEByO4= +X-Google-Smtp-Source: + ALg8bN4sgpNxIiBIAhaU8qSDeso9A0BqyR3EIwbO8UwBaShVrZZ2nAmG7p6zo63420r8KRFPizaXQA== +X-Received: by 2002:a5d:47d1:: with SMTP id + l17mr21936207wrs.319.1545919538745; + Thu, 27 Dec 2018 06:05:38 -0800 (PST) +Received: from localhost.localdomain ([31.147.208.18]) + by smtp.googlemail.com with ESMTPSA id + p6sm38219239wrx.50.2018.12.27.06.05.37 + (version=TLS1 cipher=AES128-SHA bits=128/128); + Thu, 27 Dec 2018 06:05:38 -0800 (PST) +From: =?utf-8?q?Tomislav_Po=C5=BEega?= +To: linux-wireless@vger.kernel.org +Cc: kvalo@codeaurora.org, hauke@hauke-m.de, nbd@nbd.name, + john@phrozen.org, sgruszka@redhat.com, daniel@makrotopia.org +Subject: [PATCH 1/2] rt2x00: reduce tx power to nominal level on RT6352 +Date: Thu, 27 Dec 2018 15:05:25 +0100 +Message-Id: <1545919526-4074-1-git-send-email-pozega.tomislav@gmail.com> +X-Mailer: git-send-email 1.7.0.4 +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Sender: linux-wireless-owner@vger.kernel.org +Precedence: bulk +List-ID: +X-Mailing-List: linux-wireless@vger.kernel.org +X-Virus-Scanned: ClamAV using ClamSMTP + +Current implementation of RT6352 support provides too high tx power +at least on iPA/eLNA devices. Reduce amplification of variable gain +amplifier by 6dB to match board target power of 17dBm. +Transmited signal strength with this patch is similar to that of +stock firmware or pandorabox firmware. Throughput measured with iperf +improves. Device tested: Xiaomi Miwifi Mini. + +Signed-off-by: Tomislav Požega +--- + drivers/net/wireless/ralink/rt2x00/rt2800lib.c | 2 +- + 1 files changed, 1 insertions(+), 1 deletions(-) + +--- a/drivers/net/wireless/ralink/rt2x00/rt2800lib.c ++++ b/drivers/net/wireless/ralink/rt2x00/rt2800lib.c +@@ -5814,7 +5814,7 @@ static int rt2800_init_registers(struct + rt2800_register_write(rt2x00dev, TX_SW_CFG2, 0x00000000); + rt2800_register_write(rt2x00dev, MIMO_PS_CFG, 0x00000002); + rt2800_register_write(rt2x00dev, TX_PIN_CFG, 0x00150F0F); +- rt2800_register_write(rt2x00dev, TX_ALC_VGA3, 0x06060606); ++ rt2800_register_write(rt2x00dev, TX_ALC_VGA3, 0x00000000); + rt2800_register_write(rt2x00dev, TX0_BB_GAIN_ATTEN, 0x0); + rt2800_register_write(rt2x00dev, TX1_BB_GAIN_ATTEN, 0x0); + rt2800_register_write(rt2x00dev, TX0_RF_GAIN_ATTEN, 0x6C6C666C);