From: Andrew Lunn <andrew@lunn.ch>
To: Matthias Kaehlcke <mka@chromium.org>
Cc: "David S . Miller" <davem@davemloft.net>,
Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
Florian Fainelli <f.fainelli@gmail.com>,
Heiner Kallweit <hkallweit1@gmail.com>,
netdev@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org,
Douglas Anderson <dianders@chromium.org>
Subject: Re: [PATCH v5 2/4] net: phy: Add support for generic LED configuration through the DT
Date: Wed, 7 Aug 2019 20:18:58 +0200 [thread overview]
Message-ID: <20190807181858.GB26047@lunn.ch> (raw)
In-Reply-To: <20190807170449.205378-3-mka@chromium.org>
> +static void of_phy_config_leds(struct phy_device *phydev)
> +{
> + struct device_node *np, *child;
> + struct phy_led_config cfg;
> + const char *trigger;
> + int ret;
> +
> + if (!IS_ENABLED(CONFIG_OF_MDIO) || !phydev->drv->config_led)
> + return;
> +
> + np = of_find_node_by_name(phydev->mdio.dev.of_node, "leds");
> + if (!np)
> + return;
> +
> + for_each_child_of_node(np, child) {
> + u32 led;
> +
> + if (of_property_read_u32(child, "reg", &led))
> + goto skip_config;
> +
> + ret = of_property_read_string(child, "linux,default-trigger",
> + &trigger);
> + if (ret)
> + trigger = "none";
> +
> + memset(&cfg, 0, sizeof(cfg));
> +
> + if (!strcmp(trigger, "none")) {
> + cfg.trigger.t = PHY_LED_TRIGGER_NONE;
> + } else if (!strcmp(trigger, "phy-link")) {
> + cfg.trigger.t = PHY_LED_TRIGGER_LINK;
> + } else if (!strcmp(trigger, "phy-link-10m")) {
> + cfg.trigger.t = PHY_LED_TRIGGER_LINK_10M;
> + } else if (!strcmp(trigger, "phy-link-100m")) {
> + cfg.trigger.t = PHY_LED_TRIGGER_LINK_100M;
> + } else if (!strcmp(trigger, "phy-link-1g")) {
> + cfg.trigger.t = PHY_LED_TRIGGER_LINK_1G;
> + } else if (!strcmp(trigger, "phy-link-10g")) {
> + cfg.trigger.t = PHY_LED_TRIGGER_LINK_10G;
> + } else if (!strcmp(trigger, "phy-link-activity")) {
> + cfg.trigger.t = PHY_LED_TRIGGER_LINK;
> + cfg.trigger.activity = true;
> + } else if (!strcmp(trigger, "phy-link-10m-activity")) {
> + cfg.trigger.t = PHY_LED_TRIGGER_LINK_10M;
> + cfg.trigger.activity = true;
> + } else if (!strcmp(trigger, "phy-link-100m-activity")) {
> + cfg.trigger.t = PHY_LED_TRIGGER_LINK_100M;
> + cfg.trigger.activity = true;
> + } else if (!strcmp(trigger, "phy-link-1g-activity")) {
> + cfg.trigger.t = PHY_LED_TRIGGER_LINK_1G;
> + cfg.trigger.activity = true;
> + } else if (!strcmp(trigger, "phy-link-10g-activity")) {
> + cfg.trigger.t = PHY_LED_TRIGGER_LINK_10G;
> + cfg.trigger.activity = true;
> + } else {
> + phydev_warn(phydev, "trigger '%s' for LED%d is invalid\n",
> + trigger, led);
> + goto skip_config;
> + }
> +
> + phydev->drv->config_led(phydev, led, &cfg);
We should not ignore the return value. I expect drivers will return
-EINVAL, or EOPNOTSUPP if asked to configure an LED in a way they
don't support. We need to report this. So i would add a phydev_warn:
> + phydev_warn(phydev, "trigger '%s' for LED%d not supported\n",
> + trigger, led);
Andrew
next prev parent reply other threads:[~2019-08-07 18:18 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-07 17:04 [PATCH v5 0/4] net: phy: Add support for DT configuration of PHY LEDs and use it for RTL8211E Matthias Kaehlcke
2019-08-07 17:04 ` [PATCH v5 1/4] dt-bindings: net: phy: Add subnode for LED configuration Matthias Kaehlcke
2019-08-07 17:04 ` [PATCH v5 2/4] net: phy: Add support for generic LED configuration through the DT Matthias Kaehlcke
2019-08-07 18:15 ` Andrew Lunn
2019-08-07 18:18 ` Andrew Lunn [this message]
2019-08-07 17:04 ` [PATCH v5 3/4] net: phy: realtek: Add helpers for accessing RTL8211x extension pages Matthias Kaehlcke
2019-08-07 17:04 ` [PATCH v5 4/4] net: phy: realtek: Add LED configuration support for RTL8211E Matthias Kaehlcke
2019-08-07 18:24 ` Andrew Lunn
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