From: Felipe Balbi <balbi@ti.com>
To: David Cohen <david.a.cohen@linux.intel.com>
Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com>,
Felipe Balbi <balbi@ti.com>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Baolu Lu <baolu.lu@linux.intel.com>, <linux-usb@vger.kernel.org>,
<linux-kernel@vger.kernel.org>,
Kishon Vijay Abraham I <kishon@ti.com>
Subject: Re: [PATCH 8/8] phy: add driver for TI TUSB1210 ULPI PHY
Date: Fri, 13 Feb 2015 16:03:57 -0600 [thread overview]
Message-ID: <20150213220357.GK26980@saruman.tx.rr.com> (raw)
In-Reply-To: <20150213220211.GA25281@psi-dev26.jf.intel.com>
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On Fri, Feb 13, 2015 at 02:02:11PM -0800, David Cohen wrote:
> Hi Felipe,
>
> [snip]
>
> > diff --git a/drivers/usb/dwc3/dwc3-pci.c b/drivers/usb/dwc3/dwc3-pci.c
> > index 8d95056..53902ea 100644
> > --- a/drivers/usb/dwc3/dwc3-pci.c
> > +++ b/drivers/usb/dwc3/dwc3-pci.c
> > @@ -21,6 +21,7 @@
> > #include <linux/slab.h>
> > #include <linux/pci.h>
> > #include <linux/platform_device.h>
> > +#include <linux/gpio/consumer.h>
> >
> > #include "platform_data.h"
> >
> > @@ -35,6 +36,24 @@
> >
> > static int dwc3_pci_quirks(struct pci_dev *pdev)
> > {
> > + if (pdev->vendor == PCI_VENDOR_ID_INTEL &&
> > + pdev->device == PCI_DEVICE_ID_INTEL_BYT) {
> > + struct gpio_desc *gpio;
> > +
> > + gpio = gpiod_get_index(&pdev->dev, "reset", 0);
> > + if (!IS_ERR(gpio)) {
> > + gpiod_direction_output(gpio, 0);
> > + gpiod_set_value_cansleep(gpio, 1);
> > + gpiod_put(gpio);
> > + }
> > + gpio = gpiod_get_index(&pdev->dev, "cs", 1);
> > + if (!IS_ERR(gpio)) {
> > + gpiod_direction_output(gpio, 0);
> > + gpiod_set_value_cansleep(gpio, 1);
> > + gpiod_put(gpio);
> > + }
> > + }
> > +
>
> A lot has been discussed in other branches of this thread.
>
> But in resume, this is the last open point to make Heikki's proposal
> good on my side. If you accept this ugly quirk (but necessary for
> current BYT-CR products when ULPI bus enumerates phy), everything seems
> good to me. If you don't accept, we need to figure out a way to get the
> platform driver code back to give gpio to phy as platform data in a way
> that it could live together with ULPI bus (BYT-CR needs the ULPI bus too).
Is this needed to *all* Baytrail devices or could we have devices with
updated firmware which won't need this ? I wonder if we should apply the
quirk for each known product that actually needs this.
Also, I will only accept the series, after I'm shown logs that it works
with your known-to-be-broken device.
cheers
--
balbi
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next prev parent reply other threads:[~2015-02-13 22:04 UTC|newest]
Thread overview: 70+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-23 15:12 [PATCH 0/8] usb: ulpi bus Heikki Krogerus
2015-01-23 15:12 ` [PATCH 1/8] usb: add bus type for USB ULPI Heikki Krogerus
2015-01-29 5:02 ` Felipe Balbi
2015-01-29 14:18 ` Heikki Krogerus
2015-02-13 1:44 ` Stephen Boyd
2015-02-13 11:24 ` Heikki Krogerus
2015-01-23 15:12 ` [PATCH 2/8] usb: dwc3: USB2 PHY register access bits Heikki Krogerus
2015-01-23 15:12 ` [PATCH 3/8] usb: dwc3: store driver data earlier Heikki Krogerus
2015-01-23 15:12 ` [PATCH 4/8] usb: dwc3: cache hwparams earlier Heikki Krogerus
2015-01-23 15:12 ` [PATCH 5/8] usb: dwc3: ULPI or UTMI+ select Heikki Krogerus
2015-01-23 15:12 ` [PATCH 6/8] usb: dwc3: add ULPI interface support Heikki Krogerus
2015-01-23 16:24 ` Felipe Balbi
2015-01-26 11:46 ` Heikki Krogerus
2015-01-26 19:35 ` Felipe Balbi
2015-01-27 11:09 ` Heikki Krogerus
2015-01-27 15:24 ` Felipe Balbi
2015-02-11 19:34 ` David Cohen
2015-02-12 12:12 ` Heikki Krogerus
2015-02-13 1:41 ` David Cohen
2015-02-13 1:54 ` David Cohen
2015-02-13 13:16 ` Heikki Krogerus
2015-02-13 22:03 ` David Cohen
2015-02-13 22:04 ` Felipe Balbi
2015-01-23 15:12 ` [PATCH 7/8] phy: helpers for USB ULPI PHY registering Heikki Krogerus
2015-01-29 5:03 ` Felipe Balbi
2015-01-29 14:34 ` Heikki Krogerus
2015-01-29 16:11 ` Felipe Balbi
2015-01-30 10:33 ` Heikki Krogerus
2015-01-30 16:03 ` Felipe Balbi
2015-01-23 15:12 ` [PATCH 8/8] phy: add driver for TI TUSB1210 ULPI PHY Heikki Krogerus
2015-01-24 23:58 ` David Cohen
2015-01-26 12:55 ` Heikki Krogerus
2015-01-26 19:23 ` David Cohen
2015-01-27 9:28 ` Heikki Krogerus
2015-01-27 12:57 ` Heikki Krogerus
2015-01-27 17:38 ` David Cohen
2015-01-28 14:20 ` Heikki Krogerus
2015-01-28 18:02 ` David Cohen
2015-01-29 14:14 ` Heikki Krogerus
2015-01-29 16:20 ` Felipe Balbi
2015-01-29 18:02 ` David Cohen
2015-01-30 12:18 ` Heikki Krogerus
2015-01-30 16:09 ` David Cohen
2015-02-02 12:50 ` Heikki Krogerus
2015-01-30 9:29 ` Heikki Krogerus
2015-01-30 16:14 ` Felipe Balbi
2015-01-30 16:25 ` David Cohen
2015-01-30 16:30 ` Felipe Balbi
2015-01-30 16:20 ` David Cohen
2015-01-30 16:33 ` Felipe Balbi
2015-02-02 12:59 ` Heikki Krogerus
2015-02-03 11:37 ` Heikki Krogerus
2015-02-10 18:33 ` David Cohen
2015-02-10 19:05 ` David Cohen
2015-02-10 19:23 ` David Cohen
2015-02-11 13:12 ` Heikki Krogerus
2015-02-11 19:36 ` David Cohen
2015-02-13 22:02 ` David Cohen
2015-02-13 22:03 ` Felipe Balbi [this message]
2015-02-13 22:13 ` David Cohen
2015-01-29 5:09 ` Felipe Balbi
2015-01-29 14:30 ` Heikki Krogerus
2015-01-29 16:20 ` Felipe Balbi
2015-01-29 18:04 ` David Cohen
2015-01-29 18:25 ` David Cohen
2015-01-29 18:47 ` David Cohen
2015-01-30 10:30 ` Heikki Krogerus
2015-02-13 1:52 ` David Cohen
2015-02-13 12:35 ` Heikki Krogerus
2015-02-13 16:01 ` Felipe Balbi
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