From patchwork Thu Oct 10 12:55:00 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Golle X-Patchwork-Id: 13830074 X-Patchwork-Delegate: kuba@kernel.org Received: from pidgin.makrotopia.org (pidgin.makrotopia.org [185.142.180.65]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 042F91C7B63; Thu, 10 Oct 2024 12:55:10 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.142.180.65 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728564912; cv=none; b=DAUgFh7qmQKBZHVLz+Qbt1ZWt4rZjB42mVv45FRGccyFwFQhi30rG/8QS7MMhp2b+k6DsnZuT4jTDKweweBPHU9L2fgALvt8wfpMoWdkPUWw+ihk7zOMpOv+PaZa+Du66EkcdAl68KhYdLl91vZDA8YNhCwZ3UaBd5HQdHy9Qok= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728564912; c=relaxed/simple; bh=9T18g7yr2ox+C+1PRX2dfhTcOSFI6bMTmsJZHdGkvlM=; h=Date:From:To:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=dd5tOTEbocv0s8XQG6aaiFINjRxdmiDxivsRVcnW4GiwnKtGiWZwZdByFvffxUTm5KIGxWS7e/2QfZjn+sT0Imzyj9VeIo2ZhdySvWhsDNd9A/Qbrldlp6qQlBXKlKJj94ghxDUDaZoQ0vevnHN9gFBAJrEDBQPchJEOGrRRZhg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=makrotopia.org; spf=pass smtp.mailfrom=makrotopia.org; arc=none smtp.client-ip=185.142.180.65 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=makrotopia.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=makrotopia.org Received: from local by pidgin.makrotopia.org with esmtpsa (TLS1.3:TLS_AES_256_GCM_SHA384:256) (Exim 4.98) (envelope-from ) id 1sysh6-000000003AT-2EW4; Thu, 10 Oct 2024 12:55:04 +0000 Date: Thu, 10 Oct 2024 13:55:00 +0100 From: Daniel Golle To: Pavel Machek , Lee Jones , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Andrew Lunn , Heiner Kallweit , Russell King , "David S. Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , Xu Liang , Christian Marangi , Bartosz Golaszewski , Daniel Golle , Robert Marko , Russell King , Jacek Anaszewski , linux-leds@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org Subject: [PATCH net-next v2 3/5] net: phy: aquantia: correctly describe LED polarity override Message-ID: <86a413b4387c42dcb54f587cc2433a06f16aae83.1728558223.git.daniel@makrotopia.org> References: Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-Patchwork-Delegate: kuba@kernel.org Use newly defined 'active-high' property to set the VEND1_GLOBAL_LED_DRIVE_VDD bit and let 'active-low' clear that bit. This reflects the technical reality which was inverted in the previous description in which the 'active-low' property was used to actually set the VEND1_GLOBAL_LED_DRIVE_VDD bit, which means that VDD (ie. supply voltage) of the LED is driven rather than GND. Signed-off-by: Daniel Golle Reviewed-by: Andrew Lunn --- v2: use dedicated bools force_active_high and force_active_low to make aqr_phy_led_polarity_set() more robust drivers/net/phy/aquantia/aquantia.h | 1 + drivers/net/phy/aquantia/aquantia_leds.c | 19 ++++++++++++++----- drivers/net/phy/aquantia/aquantia_main.c | 12 +++++++++--- 3 files changed, 24 insertions(+), 8 deletions(-) diff --git a/drivers/net/phy/aquantia/aquantia.h b/drivers/net/phy/aquantia/aquantia.h index 2465345081f8..0c78bfabace5 100644 --- a/drivers/net/phy/aquantia/aquantia.h +++ b/drivers/net/phy/aquantia/aquantia.h @@ -177,6 +177,7 @@ static const struct aqr107_hw_stat aqr107_hw_stats[] = { struct aqr107_priv { u64 sgmii_stats[AQR107_SGMII_STAT_SZ]; unsigned long leds_active_low; + unsigned long leds_active_high; }; #if IS_REACHABLE(CONFIG_HWMON) diff --git a/drivers/net/phy/aquantia/aquantia_leds.c b/drivers/net/phy/aquantia/aquantia_leds.c index 201c8df93fad..2bafd6c78b00 100644 --- a/drivers/net/phy/aquantia/aquantia_leds.c +++ b/drivers/net/phy/aquantia/aquantia_leds.c @@ -121,13 +121,13 @@ int aqr_phy_led_active_low_set(struct phy_device *phydev, int index, bool enable { return phy_modify_mmd(phydev, MDIO_MMD_VEND1, AQR_LED_DRIVE(index), VEND1_GLOBAL_LED_DRIVE_VDD, - enable ? VEND1_GLOBAL_LED_DRIVE_VDD : 0); + enable ? 0 : VEND1_GLOBAL_LED_DRIVE_VDD); } int aqr_phy_led_polarity_set(struct phy_device *phydev, int index, unsigned long modes) { + bool force_active_low = false, force_active_high = false; struct aqr107_priv *priv = phydev->priv; - bool active_low = false; u32 mode; if (index >= AQR_MAX_LEDS) @@ -136,7 +136,10 @@ int aqr_phy_led_polarity_set(struct phy_device *phydev, int index, unsigned long for_each_set_bit(mode, &modes, __PHY_LED_MODES_NUM) { switch (mode) { case PHY_LED_ACTIVE_LOW: - active_low = true; + force_active_low = true; + break; + case PHY_LED_ACTIVE_HIGH: + force_active_high = true; break; default: return -EINVAL; @@ -144,8 +147,14 @@ int aqr_phy_led_polarity_set(struct phy_device *phydev, int index, unsigned long } /* Save LED driver vdd state to restore on SW reset */ - if (active_low) + if (force_active_low) priv->leds_active_low |= BIT(index); - return aqr_phy_led_active_low_set(phydev, index, active_low); + if (force_active_high) + priv->leds_active_high |= BIT(index); + + if (force_active_high || force_active_low) + return aqr_phy_led_active_low_set(phydev, index, force_active_low); + + unreachable(); } diff --git a/drivers/net/phy/aquantia/aquantia_main.c b/drivers/net/phy/aquantia/aquantia_main.c index dcad3fa1ddc3..c62fc65ddbdb 100644 --- a/drivers/net/phy/aquantia/aquantia_main.c +++ b/drivers/net/phy/aquantia/aquantia_main.c @@ -517,7 +517,7 @@ static int aqr107_config_mdi(struct phy_device *phydev) static int aqr107_config_init(struct phy_device *phydev) { struct aqr107_priv *priv = phydev->priv; - u32 led_active_low; + u32 led_idx; int ret; /* Check that the PHY interface type is compatible */ @@ -548,8 +548,14 @@ static int aqr107_config_init(struct phy_device *phydev) return ret; /* Restore LED polarity state after reset */ - for_each_set_bit(led_active_low, &priv->leds_active_low, AQR_MAX_LEDS) { - ret = aqr_phy_led_active_low_set(phydev, led_active_low, true); + for_each_set_bit(led_idx, &priv->leds_active_low, AQR_MAX_LEDS) { + ret = aqr_phy_led_active_low_set(phydev, led_idx, true); + if (ret) + return ret; + } + + for_each_set_bit(led_idx, &priv->leds_active_high, AQR_MAX_LEDS) { + ret = aqr_phy_led_active_low_set(phydev, led_idx, false); if (ret) return ret; }