From: Lucas Stach <l.stach@pengutronix.de>
To: Fabio Estevam <festevam@gmail.com>
Cc: bhelgaas@google.com, linux-pci@vger.kernel.org,
Fabio Estevam <fabio.estevam@freescale.com>
Subject: Re: [PATCH] PCI: imx6: Use gpio_set_value_cansleep()
Date: Wed, 28 Oct 2015 09:47:41 +0100 [thread overview]
Message-ID: <1446022061.3138.4.camel@pengutronix.de> (raw)
In-Reply-To: <1445989318-26461-1-git-send-email-festevam@gmail.com>
Am Dienstag, den 27.10.2015, 21:41 -0200 schrieb Fabio Estevam:
> From: Fabio Estevam <fabio.estevam@freescale.com>
>
> We are in a context where we can sleep, and the PCIe reset gpio may be
> on an I2C expander. Use the cansleep() variant when setting the GPIO
> value.
>
> Based on a patch from Russell King for pci-mvebu.c.
>
> Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Simple enough,
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
> ---
> drivers/pci/host/pci-imx6.c | 4 ++--
> 1 file changed, 2 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/pci/host/pci-imx6.c b/drivers/pci/host/pci-imx6.c
> index 6f43086..e73b7f2 100644
> --- a/drivers/pci/host/pci-imx6.c
> +++ b/drivers/pci/host/pci-imx6.c
> @@ -289,9 +289,9 @@ static int imx6_pcie_deassert_core_reset(struct pcie_port *pp)
>
> /* Some boards don't have PCIe reset GPIO. */
> if (gpio_is_valid(imx6_pcie->reset_gpio)) {
> - gpio_set_value(imx6_pcie->reset_gpio, 0);
> + gpio_set_value_cansleep(imx6_pcie->reset_gpio, 0);
> msleep(100);
> - gpio_set_value(imx6_pcie->reset_gpio, 1);
> + gpio_set_value_cansleep(imx6_pcie->reset_gpio, 1);
> }
> return 0;
>
--
Pengutronix e.K. | Lucas Stach |
Industrial Linux Solutions | http://www.pengutronix.de/ |
next prev parent reply other threads:[~2015-10-28 8:47 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-10-27 23:41 [PATCH] PCI: imx6: Use gpio_set_value_cansleep() Fabio Estevam
2015-10-28 8:47 ` Lucas Stach [this message]
2015-11-25 17:34 ` Bjorn Helgaas
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