From: "Michał Mirosław" <mirq-linux@rere.qmqm.pl>
To: Dmitry Osipenko <digetx@gmail.com>
Cc: Peter Chen <peter.chen@nxp.com>, Rob Herring <robh-dt@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Thierry Reding <thierry.reding@gmail.com>,
Jonathan Hunter <jonathanh@nvidia.com>,
Felipe Balbi <balbi@kernel.org>,
"devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
"linux-usb@vger.kernel.org" <linux-usb@vger.kernel.org>,
"linux-tegra@vger.kernel.org" <linux-tegra@vger.kernel.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH v2 10/10] usb: chipidea: tegra: Add USB_TEGRA_PHY module to driver's dependencies
Date: Mon, 23 Dec 2019 22:32:34 +0100 [thread overview]
Message-ID: <20191223213234.GA28786@qmqm.qmqm.pl> (raw)
In-Reply-To: <fb7dee6e-e645-fe45-126c-c5f1e280bc26@gmail.com>
On Fri, Dec 20, 2019 at 07:31:08AM +0300, Dmitry Osipenko wrote:
> 20.12.2019 06:56, Peter Chen пишет:
> > On 19-12-20 04:52:38, Dmitry Osipenko wrote:
[...]
> >> --- a/drivers/usb/chipidea/ci_hdrc_tegra.c
> >> +++ b/drivers/usb/chipidea/ci_hdrc_tegra.c
> >> @@ -53,6 +53,12 @@ static int tegra_udc_probe(struct platform_device *pdev)
> >> struct tegra_udc *udc;
> >> int err;
> >>
> >> + if (IS_MODULE(CONFIG_USB_TEGRA_PHY)) {
> >> + err = request_module("phy_tegra_usb");
> >> + if (err)
> >> + return err;
> >> + }
> >> +
> >
> > Why you do this dependency, if this controller driver can't
> > get USB PHY, it should return error. What's the return value
> > after calling below:
> >
> > udc->phy = devm_usb_get_phy_by_phandle(&pdev->dev, "nvidia,phy", 0);
>
> It returns -EPROBE_DEFER when phy_tegra_usb isn't loaded.
How are other driver modules autoloaded? Isn't there an appropriate
MODALIAS or MODULE_DEVICE_TABLE in there?
Best Regards,
Michał Mirosław
next prev parent reply other threads:[~2019-12-23 21:32 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-20 1:52 [PATCH v2 00/10] NVIDIA Tegra USB2 drivers clean up Dmitry Osipenko
2019-12-20 1:52 ` [PATCH v2 01/10] dt-binding: usb: ci-hdrc-usb2: Document NVIDIA Tegra support Dmitry Osipenko
2019-12-20 1:52 ` [PATCH v2 02/10] usb: phy: tegra: Hook up init/shutdown callbacks Dmitry Osipenko
2019-12-20 1:52 ` [PATCH v2 03/10] usb: phy: tegra: Perform general clean up of the code Dmitry Osipenko
2019-12-20 1:52 ` [PATCH v2 04/10] usb: phy: tegra: Use relaxed versions of readl/writel Dmitry Osipenko
2019-12-20 1:52 ` [PATCH v2 05/10] usb: phy: tegra: Use generic stub for a missing VBUS regulator Dmitry Osipenko
2019-12-20 1:52 ` [PATCH v2 06/10] usb: ulpi: Add resource-managed variant of otg_ulpi_create() Dmitry Osipenko
2019-12-20 1:52 ` [PATCH v2 07/10] usb: phy: tegra: Use devm_otg_ulpi_create() Dmitry Osipenko
2019-12-20 1:52 ` [PATCH v2 08/10] usb: phy: tegra: Use u32 for hardware register variables Dmitry Osipenko
2019-12-22 13:24 ` Dejin Zheng
2019-12-22 21:48 ` Dmitry Osipenko
2019-12-23 14:53 ` Dejin Zheng
2019-12-20 1:52 ` [PATCH v2 09/10] usb: chipidea: tegra: Stop managing PHY's power Dmitry Osipenko
2019-12-20 1:52 ` [PATCH v2 10/10] usb: chipidea: tegra: Add USB_TEGRA_PHY module to driver's dependencies Dmitry Osipenko
2019-12-20 3:56 ` Peter Chen
2019-12-20 4:31 ` Dmitry Osipenko
2019-12-23 6:40 ` Peter Chen
2019-12-23 17:23 ` Dmitry Osipenko
2019-12-24 2:54 ` Peter Chen
2019-12-24 4:21 ` Dmitry Osipenko
2019-12-23 21:32 ` Michał Mirosław [this message]
2019-12-24 4:21 ` Dmitry Osipenko
2019-12-30 21:02 ` Michał Mirosław
2020-01-02 15:17 ` Dmitry Osipenko
2020-01-03 7:25 ` Michał Mirosław
2020-01-03 23:19 ` Dmitry Osipenko
2020-01-04 11:01 ` Michał Mirosław
2020-01-05 0:42 ` Dmitry Osipenko
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