<feed xmlns='http://www.w3.org/2005/Atom'>
<title>linux-toradex.git/drivers/usb/dwc3/host.c, branch v5.12-rc8</title>
<subtitle>Linux kernel for Apalis and Colibri modules</subtitle>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/'/>
<entry>
<title>usb: dwc3: host: Use software node API with the properties</title>
<updated>2021-02-05T09:08:19+00:00</updated>
<author>
<name>Heikki Krogerus</name>
<email>heikki.krogerus@linux.intel.com</email>
</author>
<published>2021-02-04T14:17:10+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=b1638ee56c1a3fddee062beac93d2fe528eb2eca'/>
<id>b1638ee56c1a3fddee062beac93d2fe528eb2eca</id>
<content type='text'>
This replaces the platform_device_add_properties() call with
the safer device_create_managed_software_node() that does
exactly the same, but can also guarantee that the lifetime
of the node that is created for the device is tied to the
lifetime of device itself.

Signed-off-by: Heikki Krogerus &lt;heikki.krogerus@linux.intel.com&gt;
Link: https://lore.kernel.org/r/20210204141711.53775-6-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
This replaces the platform_device_add_properties() call with
the safer device_create_managed_software_node() that does
exactly the same, but can also guarantee that the lifetime
of the node that is created for the device is tied to the
lifetime of device itself.

Signed-off-by: Heikki Krogerus &lt;heikki.krogerus@linux.intel.com&gt;
Link: https://lore.kernel.org/r/20210204141711.53775-6-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb: dwc3: Replace HTTP links with HTTPS ones</title>
<updated>2020-07-15T14:33:51+00:00</updated>
<author>
<name>Alexander A. Klimov</name>
<email>grandmaster@al2klimov.de</email>
</author>
<published>2020-07-11T13:58:04+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=10623b879da3932be313ba142d56b9f3d1216e96'/>
<id>10623b879da3932be313ba142d56b9f3d1216e96</id>
<content type='text'>
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
  If not .svg:
    For each line:
      If doesn't contain `\bxmlns\b`:
        For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
	  If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
            If both the HTTP and HTTPS versions
            return 200 OK and serve the same content:
              Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov &lt;grandmaster@al2klimov.de&gt;
Link: https://lore.kernel.org/r/20200711135804.19735-1-grandmaster@al2klimov.de
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Rationale:
Reduces attack surface on kernel devs opening the links for MITM
as HTTPS traffic is much harder to manipulate.

Deterministic algorithm:
For each file:
  If not .svg:
    For each line:
      If doesn't contain `\bxmlns\b`:
        For each link, `\bhttp://[^# \t\r\n]*(?:\w|/)`:
	  If neither `\bgnu\.org/license`, nor `\bmozilla\.org/MPL\b`:
            If both the HTTP and HTTPS versions
            return 200 OK and serve the same content:
              Replace HTTP with HTTPS.

Signed-off-by: Alexander A. Klimov &lt;grandmaster@al2klimov.de&gt;
Link: https://lore.kernel.org/r/20200711135804.19735-1-grandmaster@al2klimov.de
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb: dwc3: Add support for DWC_usb32 IP</title>
<updated>2020-05-25T08:09:40+00:00</updated>
<author>
<name>Thinh Nguyen</name>
<email>Thinh.Nguyen@synopsys.com</email>
</author>
<published>2020-04-12T02:20:01+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=9af21dd6faeba593fb47f5cceaf69b1e5a3ff95f'/>
<id>9af21dd6faeba593fb47f5cceaf69b1e5a3ff95f</id>
<content type='text'>
Synopsys introduces a new controller DWC_usb32. It supports dual-lane
and speed up to 20 Gbps, and the DWC3 driver will drive this controller.
Currently the driver uses a single field dwc-&gt;revision to ID both
DWC_usb3 and DWC_usb31 and their version number. This was sufficient for
two IPs, but this method doesn't work with additional IPs. As a result,
let's separate the dwc-&gt;revision field to 2 separate fields: ip and
revision. The ip field now stores the ID of the controller's IP while
the revision field stores the controller's version number.

This new scheme enforces DWC3 to compare the revision within the same IP
only. As a result, we must update all the revision check of the
controller to check its corresponding IP.

To help with this enforcement, we create a few macros to help with
the common version checks:

DWC3_IP_IS(IP)
DWC3_VER_IS(IP, VERSION)
DWC3_VER_IS_PRIOR(IP, VERSION)
DWC3_VER_IS_WITHIN(IP, LOWER_VERSION, UPPER_VERSION)
DWC3_VER_TYPE_IS_WITHIN(IP, VERSION,
			LOWER_VERSION_TYPE,
			UPPER_VERSION_TYPE)

The DWC_usb32 controller operates using the same programming model and
with very similar configurations as its previous controllers. Please
note that the various IP and revision checks in this patch match the
current checks for DWC_usb31 version 1.90a. Additional configurations
that are unique to DWC_usb32 are applied separately.

Signed-off-by: Thinh Nguyen &lt;thinhn@synopsys.com&gt;
Signed-off-by: Felipe Balbi &lt;balbi@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Synopsys introduces a new controller DWC_usb32. It supports dual-lane
and speed up to 20 Gbps, and the DWC3 driver will drive this controller.
Currently the driver uses a single field dwc-&gt;revision to ID both
DWC_usb3 and DWC_usb31 and their version number. This was sufficient for
two IPs, but this method doesn't work with additional IPs. As a result,
let's separate the dwc-&gt;revision field to 2 separate fields: ip and
revision. The ip field now stores the ID of the controller's IP while
the revision field stores the controller's version number.

This new scheme enforces DWC3 to compare the revision within the same IP
only. As a result, we must update all the revision check of the
controller to check its corresponding IP.

To help with this enforcement, we create a few macros to help with
the common version checks:

DWC3_IP_IS(IP)
DWC3_VER_IS(IP, VERSION)
DWC3_VER_IS_PRIOR(IP, VERSION)
DWC3_VER_IS_WITHIN(IP, LOWER_VERSION, UPPER_VERSION)
DWC3_VER_TYPE_IS_WITHIN(IP, VERSION,
			LOWER_VERSION_TYPE,
			UPPER_VERSION_TYPE)

The DWC_usb32 controller operates using the same programming model and
with very similar configurations as its previous controllers. Please
note that the various IP and revision checks in this patch match the
current checks for DWC_usb31 version 1.90a. Additional configurations
that are unique to DWC_usb32 are applied separately.

Signed-off-by: Thinh Nguyen &lt;thinhn@synopsys.com&gt;
Signed-off-by: Felipe Balbi &lt;balbi@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb: dwc3: Remove kernel doc annotation where it's not needed</title>
<updated>2020-03-15T09:08:53+00:00</updated>
<author>
<name>Andy Shevchenko</name>
<email>andriy.shevchenko@linux.intel.com</email>
</author>
<published>2020-02-18T15:12:19+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=a33e5d639c9b2ad980d3e458ca92af36cfcf3a9b'/>
<id>a33e5d639c9b2ad980d3e458ca92af36cfcf3a9b</id>
<content type='text'>
The main comment in the file mistakenly marked with kernel doc annotation
which makes the parser unhappy:

.../dwc3/host.c:16: warning: Function parameter or member 'dwc' not described in 'dwc3_host_get_irq'

Drop kernel doc annotation from host.c module.

Signed-off-by: Andy Shevchenko &lt;andriy.shevchenko@linux.intel.com&gt;
Signed-off-by: Felipe Balbi &lt;balbi@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The main comment in the file mistakenly marked with kernel doc annotation
which makes the parser unhappy:

.../dwc3/host.c:16: warning: Function parameter or member 'dwc' not described in 'dwc3_host_get_irq'

Drop kernel doc annotation from host.c module.

Signed-off-by: Andy Shevchenko &lt;andriy.shevchenko@linux.intel.com&gt;
Signed-off-by: Felipe Balbi &lt;balbi@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb: dwc3: Add ACPI support for xHCI ports</title>
<updated>2020-03-15T09:08:49+00:00</updated>
<author>
<name>Andy Shevchenko</name>
<email>andriy.shevchenko@linux.intel.com</email>
</author>
<published>2020-02-18T15:12:18+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=11c39809070fc0eb3aacb0d9ee71cd3678144f66'/>
<id>11c39809070fc0eb3aacb0d9ee71cd3678144f66</id>
<content type='text'>
The ACPI companion of the adapter has to be set for xHCI controller
code to read and attach the ports described in the ACPI table.
Use ACPI_COMPANION_SET macro to set this.

Signed-off-by: Andy Shevchenko &lt;andriy.shevchenko@linux.intel.com&gt;
Signed-off-by: Felipe Balbi &lt;balbi@kernel.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The ACPI companion of the adapter has to be set for xHCI controller
code to read and attach the ports described in the ACPI table.
Use ACPI_COMPANION_SET macro to set this.

Signed-off-by: Andy Shevchenko &lt;andriy.shevchenko@linux.intel.com&gt;
Signed-off-by: Felipe Balbi &lt;balbi@kernel.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb: dwc3: use proper initializers for property entries</title>
<updated>2020-01-09T09:28:52+00:00</updated>
<author>
<name>Dmitry Torokhov</name>
<email>dmitry.torokhov@gmail.com</email>
</author>
<published>2019-12-13T17:46:23+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=5eb5afb07853d6e90d3a2b230c825e028e948f79'/>
<id>5eb5afb07853d6e90d3a2b230c825e028e948f79</id>
<content type='text'>
We should not be reaching into property entries and initialize them by
hand, but rather use proper initializer macros. This way we can alter
internal representation of property entries with no visible changes to
their users.

Reported-by: Marek Szyprowski &lt;m.szyprowski@samsung.com&gt;
Tested-by: Marek Szyprowski &lt;m.szyprowski@samsung.com&gt;
Signed-off-by: Dmitry Torokhov &lt;dmitry.torokhov@gmail.com&gt;
Acked-by: Hans de Goede &lt;hdegoede@redhat.com&gt;
Acked-by: Felipe Balbi &lt;balbi@kernel.org&gt;
Signed-off-by: Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
We should not be reaching into property entries and initialize them by
hand, but rather use proper initializer macros. This way we can alter
internal representation of property entries with no visible changes to
their users.

Reported-by: Marek Szyprowski &lt;m.szyprowski@samsung.com&gt;
Tested-by: Marek Szyprowski &lt;m.szyprowski@samsung.com&gt;
Signed-off-by: Dmitry Torokhov &lt;dmitry.torokhov@gmail.com&gt;
Acked-by: Hans de Goede &lt;hdegoede@redhat.com&gt;
Acked-by: Felipe Balbi &lt;balbi@kernel.org&gt;
Signed-off-by: Rafael J. Wysocki &lt;rafael.j.wysocki@intel.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb: dwc3: Remove dev_err() on platform_get_irq() failure</title>
<updated>2019-10-07T10:52:44+00:00</updated>
<author>
<name>Hans de Goede</name>
<email>hdegoede@redhat.com</email>
</author>
<published>2019-10-05T21:04:49+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=d819f6584c201b7797daa33f0cff7247be14f2a8'/>
<id>d819f6584c201b7797daa33f0cff7247be14f2a8</id>
<content type='text'>
Since commit 7723f4c5ecdb ("driver core: platform: Add an error message to
platform_get_irq*()"), platform_get_irq() will call dev_err() itself on
failure, so there is no need for the driver to also do this.

Signed-off-by: Hans de Goede &lt;hdegoede@redhat.com&gt;
Acked-by: Felipe Balbi &lt;felipe.balbi@linux.intel.com&gt;
Link: https://lore.kernel.org/r/20191005210449.3926-4-hdegoede@redhat.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Since commit 7723f4c5ecdb ("driver core: platform: Add an error message to
platform_get_irq*()"), platform_get_irq() will call dev_err() itself on
failure, so there is no need for the driver to also do this.

Signed-off-by: Hans de Goede &lt;hdegoede@redhat.com&gt;
Acked-by: Felipe Balbi &lt;felipe.balbi@linux.intel.com&gt;
Link: https://lore.kernel.org/r/20191005210449.3926-4-hdegoede@redhat.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb: dwc3: Switch to platform_get_irq_byname_optional()</title>
<updated>2019-10-07T10:52:44+00:00</updated>
<author>
<name>Hans de Goede</name>
<email>hdegoede@redhat.com</email>
</author>
<published>2019-10-05T21:04:48+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=f146b40ba1f0f689ca3cbd594a78b2424c459ddc'/>
<id>f146b40ba1f0f689ca3cbd594a78b2424c459ddc</id>
<content type='text'>
The dwc3 code to get the "peripheral" / "host" / "otg" IRQ first tries
platform_get_irq_byname() and then falls back to the IRQ at index 0 if
the platform_get_irq_byname().

In this case we do not want platform_get_irq_byname() to print an error
on failure, so switch to platform_get_irq_byname_optional() instead which
does not print an error.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=205037
Signed-off-by: Hans de Goede &lt;hdegoede@redhat.com&gt;
Acked-by: Felipe Balbi &lt;felipe.balbi@linux.intel.com&gt;
Link: https://lore.kernel.org/r/20191005210449.3926-3-hdegoede@redhat.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
The dwc3 code to get the "peripheral" / "host" / "otg" IRQ first tries
platform_get_irq_byname() and then falls back to the IRQ at index 0 if
the platform_get_irq_byname().

In this case we do not want platform_get_irq_byname() to print an error
on failure, so switch to platform_get_irq_byname_optional() instead which
does not print an error.

BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=205037
Signed-off-by: Hans de Goede &lt;hdegoede@redhat.com&gt;
Acked-by: Felipe Balbi &lt;felipe.balbi@linux.intel.com&gt;
Link: https://lore.kernel.org/r/20191005210449.3926-3-hdegoede@redhat.com
Signed-off-by: Greg Kroah-Hartman &lt;gregkh@linuxfoundation.org&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb: dwc3: remove generic PHYs forwarding for XHCI device</title>
<updated>2019-08-09T10:37:05+00:00</updated>
<author>
<name>Marek Szyprowski</name>
<email>m.szyprowski@samsung.com</email>
</author>
<published>2019-07-19T09:30:37+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=3cd703f483d1d8cfcd7fd6f304ab6fc74e29cf15'/>
<id>3cd703f483d1d8cfcd7fd6f304ab6fc74e29cf15</id>
<content type='text'>
Commit 08f871a3aca2 ("usb: dwc3: host: convey the PHYs to xhci") added
forwarding of the generic PHYs from DWC3 core to the instantiated XHCI-plat
device. However XHCI(-plat) driver never gained support for generic PHYs,
thus the lookup added by that commit is never used. In meantime the commit
d64ff406e51e ("usb: dwc3: use bus-&gt;sysdev for DMA configuration")
incorrectly changed the device used for creating lookup, making the lookup
useless and generic PHYs inaccessible from XHCI device.

However since commit 178a0bce05cb ("usb: core: hcd: integrate the PHY
wrapper into the HCD core") USB HCD already handles generic PHYs acquired
from the HCD's 'sysdev', which in this case is DWC3 core device. This means
that creating any custom lookup entries for XHCI driver is no longer needed
and can be simply removed.

Signed-off-by: Marek Szyprowski &lt;m.szyprowski@samsung.com&gt;
Signed-off-by: Felipe Balbi &lt;felipe.balbi@linux.intel.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Commit 08f871a3aca2 ("usb: dwc3: host: convey the PHYs to xhci") added
forwarding of the generic PHYs from DWC3 core to the instantiated XHCI-plat
device. However XHCI(-plat) driver never gained support for generic PHYs,
thus the lookup added by that commit is never used. In meantime the commit
d64ff406e51e ("usb: dwc3: use bus-&gt;sysdev for DMA configuration")
incorrectly changed the device used for creating lookup, making the lookup
useless and generic PHYs inaccessible from XHCI device.

However since commit 178a0bce05cb ("usb: core: hcd: integrate the PHY
wrapper into the HCD core") USB HCD already handles generic PHYs acquired
from the HCD's 'sysdev', which in this case is DWC3 core device. This means
that creating any custom lookup entries for XHCI driver is no longer needed
and can be simply removed.

Signed-off-by: Marek Szyprowski &lt;m.szyprowski@samsung.com&gt;
Signed-off-by: Felipe Balbi &lt;felipe.balbi@linux.intel.com&gt;
</pre>
</div>
</content>
</entry>
<entry>
<title>usb: dwc3: Support option to disable USB2 LPM</title>
<updated>2018-11-26T07:06:31+00:00</updated>
<author>
<name>Thinh Nguyen</name>
<email>thinh.nguyen@synopsys.com</email>
</author>
<published>2018-11-08T02:10:42+00:00</published>
<link rel='alternate' type='text/html' href='https://git.toradex.cn/cgit/linux-toradex.git/commit/?id=022a0208c0ff038f8970a71cb298f85722b4a0ef'/>
<id>022a0208c0ff038f8970a71cb298f85722b4a0ef</id>
<content type='text'>
Support the option to disable USB2 LPM. Set xhci "usb2-lpm-disable"
property via "snps,usb2-lpm-disable" property.

Signed-off-by: Thinh Nguyen &lt;thinhn@synopsys.com&gt;
Signed-off-by: Felipe Balbi &lt;felipe.balbi@linux.intel.com&gt;
</content>
<content type='xhtml'>
<div xmlns='http://www.w3.org/1999/xhtml'>
<pre>
Support the option to disable USB2 LPM. Set xhci "usb2-lpm-disable"
property via "snps,usb2-lpm-disable" property.

Signed-off-by: Thinh Nguyen &lt;thinhn@synopsys.com&gt;
Signed-off-by: Felipe Balbi &lt;felipe.balbi@linux.intel.com&gt;
</pre>
</div>
</content>
</entry>
</feed>
