From nobody Sun Apr 19 18:47:57 2026 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 ACB7EC433EF for ; Tue, 28 Jun 2022 05:50:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S245182AbiF1FuH (ORCPT ); Tue, 28 Jun 2022 01:50:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33620 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234723AbiF1FuF (ORCPT ); Tue, 28 Jun 2022 01:50:05 -0400 Received: from esa.microchip.iphmx.com (esa.microchip.iphmx.com [68.232.154.123]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D01D0277; Mon, 27 Jun 2022 22:50:01 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=microchip.com; i=@microchip.com; q=dns/txt; s=mchp; t=1656395401; x=1687931401; h=from:to:cc:subject:date:message-id:mime-version; bh=5rISu0DsgIyai9Sw4yACUph6Moa7E+fLi6LDaVLrTwg=; b=irS7KYZg0B96pkkZl4DIgfsJSgIZyq1TUTKWaJnk5xDUflA2SYmbB8OQ ED+jYaKqCqPEQDhHdawhlUKlufEbSt/9rAX3NYUHf+m9hBX5gzpXxmRfm ZMq56CcTKnFmwAo9YnWzv5fP2fQ/KtYOVV4fKEuHm5XnJQBRsjhl+EXvs HtDab8/TQqqjK/Q3zLc8RglyFs3XutfzeFZ5IbdQQGUJbytJ8DsFJf5oz qEGkqFSzs1XsjM99eiSbsftbvspnSzwF8s13cK4IDqfbLhto1MgCuBMQr xigoiVuyGPjPfWO/LhV29BCypLhFN67ID8Leapss8iy5XY7mwbnwU8yvV A==; X-IronPort-AV: E=Sophos;i="5.92,227,1650956400"; d="scan'208";a="102025358" Received: from unknown (HELO email.microchip.com) ([170.129.1.10]) by esa6.microchip.iphmx.com with ESMTP/TLS/AES256-SHA256; 27 Jun 2022 22:50:00 -0700 Received: from chn-vm-ex01.mchp-main.com (10.10.85.143) by chn-vm-ex02.mchp-main.com (10.10.85.144) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.17; Mon, 27 Jun 2022 22:50:00 -0700 Received: from training-HP-280-G1-MT-PC.microchip.com (10.10.115.15) by chn-vm-ex01.mchp-main.com (10.10.85.143) with Microsoft SMTP Server id 15.1.2375.17 via Frontend Transport; Mon, 27 Jun 2022 22:49:55 -0700 From: Divya Koppera To: , , , , , , , , CC: , Subject: [PATCH net-next] net: phy: micrel: Adding LED feature for LAN8814 PHY Date: Tue, 28 Jun 2022 11:19:25 +0530 Message-ID: <20220628054925.14198-1-Divya.Koppera@microchip.com> X-Mailer: git-send-email 2.17.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" LED support for extended mode where LED 1: Enhanced Mode 5 (10M/1000M/Activity) LED 2: Enhanced Mode 4 (100M/1000M/Activity) By default it supports KSZ9031 LED mode Signed-off-by: Divya Koppera --- drivers/net/phy/micrel.c | 71 +++++++++++++++++++++++++++++++--------- 1 file changed, 56 insertions(+), 15 deletions(-) diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c index 22139901f01c..297e58d49159 100644 --- a/drivers/net/phy/micrel.c +++ b/drivers/net/phy/micrel.c @@ -209,6 +209,9 @@ #define PTP_TSU_INT_STS_PTP_RX_TS_OVRFL_INT_ BIT(1) #define PTP_TSU_INT_STS_PTP_RX_TS_EN_ BIT(0) =20 +#define LAN8814_LED_CTRL_1 0x0 +#define LAN8814_LED_CTRL_1_KSZ9031_LED_MODE_ BIT(6) + /* PHY Control 1 */ #define MII_KSZPHY_CTRL_1 0x1e #define KSZ8081_CTRL1_MDIX_STAT BIT(4) @@ -308,6 +311,10 @@ struct kszphy_priv { u64 stats[ARRAY_SIZE(kszphy_hw_stats)]; }; =20 +static const struct kszphy_type lan8814_type =3D { + .led_mode_reg =3D ~LAN8814_LED_CTRL_1, +}; + static const struct kszphy_type ksz8021_type =3D { .led_mode_reg =3D MII_KSZPHY_CTRL_2, .has_broadcast_disable =3D true, @@ -1688,6 +1695,30 @@ static int kszphy_suspend(struct phy_device *phydev) return genphy_suspend(phydev); } =20 +static void kszphy_parse_led_mode(struct phy_device *phydev) +{ + const struct kszphy_type *type =3D phydev->drv->driver_data; + const struct device_node *np =3D phydev->mdio.dev.of_node; + struct kszphy_priv *priv =3D phydev->priv; + int ret; + + if (type && type->led_mode_reg) { + ret =3D of_property_read_u32(np, "micrel,led-mode", + &priv->led_mode); + + if (ret) + priv->led_mode =3D -1; + + if (priv->led_mode > 3) { + phydev_err(phydev, "invalid led mode: 0x%02x\n", + priv->led_mode); + priv->led_mode =3D -1; + } + } else { + priv->led_mode =3D -1; + } +} + static int kszphy_resume(struct phy_device *phydev) { int ret; @@ -1720,7 +1751,6 @@ static int kszphy_probe(struct phy_device *phydev) const struct device_node *np =3D phydev->mdio.dev.of_node; struct kszphy_priv *priv; struct clk *clk; - int ret; =20 priv =3D devm_kzalloc(&phydev->mdio.dev, sizeof(*priv), GFP_KERNEL); if (!priv) @@ -1730,20 +1760,7 @@ static int kszphy_probe(struct phy_device *phydev) =20 priv->type =3D type; =20 - if (type && type->led_mode_reg) { - ret =3D of_property_read_u32(np, "micrel,led-mode", - &priv->led_mode); - if (ret) - priv->led_mode =3D -1; - - if (priv->led_mode > 3) { - phydev_err(phydev, "invalid led mode: 0x%02x\n", - priv->led_mode); - priv->led_mode =3D -1; - } - } else { - priv->led_mode =3D -1; - } + kszphy_parse_led_mode(phydev); =20 clk =3D devm_clk_get(&phydev->mdio.dev, "rmii-ref"); /* NOTE: clk may be NULL if building without CONFIG_HAVE_CLK */ @@ -2815,8 +2832,23 @@ static int lan8814_ptp_probe_once(struct phy_device = *phydev) return 0; } =20 +static void lan8814_setup_led(struct phy_device *phydev, int val) +{ + int temp; + + temp =3D lan8814_read_page_reg(phydev, 5, LAN8814_LED_CTRL_1); + + if (val) + temp |=3D LAN8814_LED_CTRL_1_KSZ9031_LED_MODE_; + else + temp &=3D ~LAN8814_LED_CTRL_1_KSZ9031_LED_MODE_; + + lan8814_write_page_reg(phydev, 5, LAN8814_LED_CTRL_1, temp); +} + static int lan8814_config_init(struct phy_device *phydev) { + struct kszphy_priv *lan8814 =3D phydev->priv; int val; =20 /* Reset the PHY */ @@ -2850,11 +2882,15 @@ static int lan8814_release_coma_mode(struct phy_dev= ice *phydev) gpiod_set_consumer_name(gpiod, "LAN8814 coma mode"); gpiod_set_value_cansleep(gpiod, 0); =20 + if (lan8814->led_mode >=3D 0) + lan8814_setup_led(phydev, lan8814->led_mode); + return 0; } =20 static int lan8814_probe(struct phy_device *phydev) { + const struct kszphy_type *type =3D phydev->drv->driver_data; struct kszphy_priv *priv; u16 addr; int err; @@ -2867,6 +2903,10 @@ static int lan8814_probe(struct phy_device *phydev) =20 phydev->priv =3D priv; =20 + priv->type =3D type; + + kszphy_parse_led_mode(phydev); + /* Strap-in value for PHY address, below register read gives starting * phy address value */ @@ -3068,6 +3108,7 @@ static struct phy_driver ksphy_driver[] =3D { .phy_id_mask =3D MICREL_PHY_ID_MASK, .name =3D "Microchip INDY Gigabit Quad PHY", .config_init =3D lan8814_config_init, + .driver_data =3D &lan8814_type, .probe =3D lan8814_probe, .soft_reset =3D genphy_soft_reset, .read_status =3D ksz9031_read_status, --=20 2.17.1