From patchwork Tue Jun 28 05:49:25 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Divya Koppera X-Patchwork-Id: 12897728 X-Patchwork-Delegate: kuba@kernel.org 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 AFC2AC433EF for ; Tue, 28 Jun 2022 05:50:07 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S245176AbiF1FuG (ORCPT ); Tue, 28 Jun 2022 01:50:06 -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; 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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: netdev@vger.kernel.org X-Patchwork-Delegate: kuba@kernel.org 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) +#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)]; }; +static const struct kszphy_type lan8814_type = { + .led_mode_reg = ~LAN8814_LED_CTRL_1, +}; + static const struct kszphy_type ksz8021_type = { .led_mode_reg = MII_KSZPHY_CTRL_2, .has_broadcast_disable = true, @@ -1688,6 +1695,30 @@ static int kszphy_suspend(struct phy_device *phydev) return genphy_suspend(phydev); } +static void kszphy_parse_led_mode(struct phy_device *phydev) +{ + const struct kszphy_type *type = phydev->drv->driver_data; + const struct device_node *np = phydev->mdio.dev.of_node; + struct kszphy_priv *priv = phydev->priv; + int ret; + + if (type && type->led_mode_reg) { + ret = of_property_read_u32(np, "micrel,led-mode", + &priv->led_mode); + + if (ret) + priv->led_mode = -1; + + if (priv->led_mode > 3) { + phydev_err(phydev, "invalid led mode: 0x%02x\n", + priv->led_mode); + priv->led_mode = -1; + } + } else { + priv->led_mode = -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 = phydev->mdio.dev.of_node; struct kszphy_priv *priv; struct clk *clk; - int ret; priv = devm_kzalloc(&phydev->mdio.dev, sizeof(*priv), GFP_KERNEL); if (!priv) @@ -1730,20 +1760,7 @@ static int kszphy_probe(struct phy_device *phydev) priv->type = type; - if (type && type->led_mode_reg) { - ret = of_property_read_u32(np, "micrel,led-mode", - &priv->led_mode); - if (ret) - priv->led_mode = -1; - - if (priv->led_mode > 3) { - phydev_err(phydev, "invalid led mode: 0x%02x\n", - priv->led_mode); - priv->led_mode = -1; - } - } else { - priv->led_mode = -1; - } + kszphy_parse_led_mode(phydev); clk = 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; } +static void lan8814_setup_led(struct phy_device *phydev, int val) +{ + int temp; + + temp = lan8814_read_page_reg(phydev, 5, LAN8814_LED_CTRL_1); + + if (val) + temp |= LAN8814_LED_CTRL_1_KSZ9031_LED_MODE_; + else + temp &= ~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 = phydev->priv; int val; /* Reset the PHY */ @@ -2850,11 +2882,15 @@ static int lan8814_release_coma_mode(struct phy_device *phydev) gpiod_set_consumer_name(gpiod, "LAN8814 coma mode"); gpiod_set_value_cansleep(gpiod, 0); + if (lan8814->led_mode >= 0) + lan8814_setup_led(phydev, lan8814->led_mode); + return 0; } static int lan8814_probe(struct phy_device *phydev) { + const struct kszphy_type *type = phydev->drv->driver_data; struct kszphy_priv *priv; u16 addr; int err; @@ -2867,6 +2903,10 @@ static int lan8814_probe(struct phy_device *phydev) phydev->priv = priv; + priv->type = 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[] = { .phy_id_mask = MICREL_PHY_ID_MASK, .name = "Microchip INDY Gigabit Quad PHY", .config_init = lan8814_config_init, + .driver_data = &lan8814_type, .probe = lan8814_probe, .soft_reset = genphy_soft_reset, .read_status = ksz9031_read_status,