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Thu, 12 Apr 2018 09:56:57 -0400 Received: from mx07-00252a01.pphosted.com ([62.209.51.214]:64353 "EHLO mx07-00252a01.pphosted.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752571AbeDLNzw (ORCPT ); Thu, 12 Apr 2018 09:55:52 -0400 X-Google-Smtp-Source: AIpwx4/dlAtYg51RGn03Bmuzbazqy7BzJQoRes2syNovFDUPjtg/MZueikr3p9heXIU9anlO4mrI3w== From: Phil Elwell To: Woojung Huh , Microchip Linux Driver Support , Rob Herring , Mark Rutland , "David S. Miller" , Mauro Carvalho Chehab , Greg Kroah-Hartman , Linus Walleij , Andrew Morton , Randy Dunlap , netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-usb@vger.kernel.org Cc: Phil Elwell Subject: [PATCH 2/4] lan78xx: Read initial EEE setting from Device Tree Date: Thu, 12 Apr 2018 14:55:34 +0100 Message-Id: <1523541336-145953-3-git-send-email-phil@raspberrypi.org> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1523541336-145953-1-git-send-email-phil@raspberrypi.org> References: <1523541336-145953-1-git-send-email-phil@raspberrypi.org> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2018-04-12_07:,, signatures=0 Sender: linux-usb-owner@vger.kernel.org X-Mailing-List: linux-usb@vger.kernel.org X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: Add two new Device Tree properties: * microchip,eee-enabled - a boolean to enable EEE * microchip,tx-lpi-timer - time in microseconds to wait after TX goes idle before entering the low power state (default 600) Signed-off-by: Phil Elwell --- drivers/net/usb/lan78xx.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/drivers/net/usb/lan78xx.c b/drivers/net/usb/lan78xx.c index d2727b5..d98397b 100644 --- a/drivers/net/usb/lan78xx.c +++ b/drivers/net/usb/lan78xx.c @@ -2080,6 +2080,23 @@ static int lan78xx_phy_init(struct lan78xx_net *dev) mii_adv = (u32)mii_advertise_flowctrl(dev->fc_request_control); phydev->advertising |= mii_adv_to_ethtool_adv_t(mii_adv); + if (of_property_read_bool(dev->udev->dev.of_node, + "microchip,eee-enabled")) { + struct ethtool_eee edata; + + memset(&edata, 0, sizeof(edata)); + edata.cmd = ETHTOOL_SEEE; + edata.advertised = ADVERTISED_1000baseT_Full | + ADVERTISED_100baseT_Full; + edata.eee_enabled = true; + edata.tx_lpi_enabled = true; + if (of_property_read_u32(dev->udev->dev.of_node, + "microchip,tx-lpi-timer", + &edata.tx_lpi_timer)) + edata.tx_lpi_timer = 600; /* non-aggressive */ + (void)lan78xx_set_eee(dev->net, &edata); + } + genphy_config_aneg(phydev); dev->fc_autoneg = phydev->autoneg; -- 2.7.4