From mboxrd@z Thu Jan 1 00:00:00 1970 From: Martin Fuzzey Date: Thu, 4 Oct 2018 19:59:19 +0200 Subject: [U-Boot] [PATCH 2/4] net: dm: fec: Fix phy-reset-duration clamping and defaults In-Reply-To: <1538675965-4495-1-git-send-email-martin.fuzzey@flowbird.group> References: <1538675965-4495-1-git-send-email-martin.fuzzey@flowbird.group> Message-ID: <1538675965-4495-3-git-send-email-martin.fuzzey@flowbird.group> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de The DT binding says: - phy-reset-duration : Reset duration in milliseconds. Should present only if property "phy-reset-gpios" is available. Missing the property will have the duration be 1 millisecond. Numbers greater than 1000 are invalid and 1 millisecond will be used instead. However the current code: - clamps values greater than 1000ms to 1000ms rather than 1. - does not initialize the delay if the property does not exist (else clause mismatch) - returns an error if phy-reset-gpios is not defined Fix all this and simplify by using dev_read_u32_default() Signed-off-by: Martin Fuzzey --- drivers/net/fec_mxc.c | 19 ++++++++----------- 1 file changed, 8 insertions(+), 11 deletions(-) diff --git a/drivers/net/fec_mxc.c b/drivers/net/fec_mxc.c index a1295fc..163ae4c 100644 --- a/drivers/net/fec_mxc.c +++ b/drivers/net/fec_mxc.c @@ -1354,20 +1354,17 @@ static int fecmxc_ofdata_to_platdata(struct udevice *dev) ret = gpio_request_by_name(dev, "phy-reset-gpios", 0, &priv->phy_reset_gpio, GPIOD_IS_OUT); if (ret == 0) { - ret = dev_read_u32_array(dev, "phy-reset-duration", - &priv->reset_delay, 1); - } else if (ret == -ENOENT) { - priv->reset_delay = 1000; - ret = 0; - } - - if (priv->reset_delay > 1000) { - printf("FEX MXC: gpio reset timeout should be less the 1000\n"); - priv->reset_delay = 1000; + priv->reset_delay = dev_read_u32_default(dev, + "phy-reset-duration", + 1); + if (priv->reset_delay > 1000) { + printf("FEC MXC: phy reset duration should be <= 1000ms\n"); + priv->reset_delay = 1; + } } #endif - return ret; + return 0; } static const struct udevice_id fecmxc_ids[] = { -- 1.9.1