From: "Russell King (Oracle)" <linux@armlinux.org.uk>
To: lizhe <sensor1010@163.com>
Cc: Andrew Lunn <andrew@lunn.ch>,
andrew+netdev@lunn.ch, davem@davemloft.net, edumazet@google.com,
kuba@kernel.org, pabeni@redhat.com, mcoquelin.stm32@gmail.com,
alexandre.torgue@foss.st.com, vladimir.oltean@nxp.com,
maxime.chevallier@bootlin.com, netdev@vger.kernel.org,
linux-stm32@st-md-mailman.stormreply.com,
linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org
Subject: Re: Re: Re: [PATCH] net: stmmac: Support gpio high-level reset for devices requiring it
Date: Wed, 9 Jul 2025 12:11:02 +0100 [thread overview]
Message-ID: <aG5ORmbgMYd08eNR@shell.armlinux.org.uk> (raw)
In-Reply-To: <5bb49dc0.6933.197ee28444e.Coremail.sensor1010@163.com>
On Wed, Jul 09, 2025 at 03:48:25PM +0800, lizhe wrote:
> Hi,
>
> after replacing with this function, the function returns 0, meaning the gpio is
> still at a low voltage level.
>
> + int gpio_state = -1;
>
>
> if (delays[2])
> msleep(DIV_ROUND_UP(delays[2], 1000));
> +
> + gpio_state = gpiod_get_raw_value_cansleep(reset_gpio);
> + pr_info("gpio_state: %d\n", gpio_state);
> + pr_info("gpio_state: %d\n", gpio_state);
>
> gpio-111 ( |snps,reset ) out lo
>
>
> [ 3.899319] gpio_state: 0
> [ 3.899324] gpio_state: 0
How have you declared the snps,reset-gpio property in DT?
--
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTP is here! 80Mbps down 10Mbps up. Decent connectivity at last!
next prev parent reply other threads:[~2025-07-09 13:31 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-07-08 16:50 [PATCH] net: stmmac: Support gpio high-level reset for devices requiring it Lizhe
2025-07-08 17:34 ` Andrew Lunn
[not found] ` <5c7adfef.1876.197ece74c25.Coremail.sensor1010@163.com>
2025-07-09 4:26 ` Russell King (Oracle)
[not found] ` <5bb49dc0.6933.197ee28444e.Coremail.sensor1010@163.com>
2025-07-09 11:11 ` Russell King (Oracle) [this message]
[not found] ` <4cfb4aab.9588.197eefef55f.Coremail.sensor1010@163.com>
2025-07-09 14:29 ` Re: " Russell King (Oracle)
[not found] ` <2352b745.a454.197efeef829.Coremail.sensor1010@163.com>
2025-07-09 17:01 ` Andrew Lunn
2025-07-09 17:41 ` Russell King (Oracle)
2025-07-09 12:54 ` Andrew Lunn
2025-07-08 17:40 ` Russell King (Oracle)
[not found] ` <2588871d.189d.197ece7c486.Coremail.sensor1010@163.com>
2025-07-09 4:25 ` Russell King (Oracle)
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