linux.git/drivers/usb/typec/mux, branch v5.13

usb: typec: intel_pmc_mux: Put ACPI device using acpi_dev_put()

2021-06-09T08:56:14+00:00

For ACPI devices we have a symmetric API to put them, so use it in the driver.

Reviewed-by: Heikki Krogerus 
Signed-off-by: Andy Shevchenko 
Link: https://lore.kernel.org/r/20210607205007.71458-3-andy.shevchenko@gmail.com
Signed-off-by: Greg Kroah-Hartman

usb: typec: intel_pmc_mux: Add missed error check for devm_ioremap_resource()

2021-06-09T08:56:11+00:00

devm_ioremap_resource() can return an error, add missed check for it.

Fixes: 43d596e32276 ("usb: typec: intel_pmc_mux: Check the port status before connect")
Reviewed-by: Heikki Krogerus 
Signed-off-by: Andy Shevchenko 
Cc: stable 
Link: https://lore.kernel.org/r/20210607205007.71458-2-andy.shevchenko@gmail.com
Signed-off-by: Greg Kroah-Hartman

usb: typec: intel_pmc_mux: Put fwnode in error case during ->probe()

2021-06-09T08:56:08+00:00

device_get_next_child_node() bumps a reference counting of a returned variable.
We have to balance it whenever we return to the caller.

Fixes: 6701adfa9693 ("usb: typec: driver for Intel PMC mux control")
Cc: Heikki Krogerus 
Reviewed-by: Heikki Krogerus 
Signed-off-by: Andy Shevchenko 
Cc: stable 
Link: https://lore.kernel.org/r/20210607205007.71458-1-andy.shevchenko@gmail.com
Signed-off-by: Greg Kroah-Hartman

usb: typec: intel_pmc_mux: Configure HPD first for HPD+IRQ request

2020-12-28T14:44:26+00:00

Warm reboot scenarios some times type C Mux driver gets Mux configuration
request as HPD=1,IRQ=1. In that scenario typeC Mux driver need to configure
Mux as follows as per IOM requirement:
 (1). Confgiure Mux HPD = 1, IRQ = 0
 (2). Configure Mux with HPD = 1, IRQ = 1

IOM expects TypeC Mux configuration as follows:
 (1). HPD=1, IRQ=0
 (2). HPD=1, IRQ=1
if IOM gets mux config request (2) without configuring (1), it will ignore
the request. The impact of this is there is no DP_alt mode display.

Fixes: 43d596e32276 ("usb: typec: intel_pmc_mux: Check the port status before connect")
Cc: stable@vger.kernel.org
Reviewed-by: Heikki Krogerus 
Signed-off-by: Madhusudanarao Amara 
Link: https://lore.kernel.org/r/20201216140918.49197-1-madhusudanarao.amara@intel.com
Signed-off-by: Greg Kroah-Hartman

usb: typec: intel_pmc_mux: Configure cable generation value for USB4

2020-12-10T15:03:37+00:00

USB4 specification chapter 3 indicates that cable data rates have to be
rounded for USB4 device to operate as USB4.
With that configure cable generation value to use rounded data rates for
USB4.

Reviewed-by: Heikki Krogerus 
Signed-off-by: Utkarsh Patel 
Link: https://lore.kernel.org/r/20201209042408.23079-2-utkarsh.h.patel@intel.com
Signed-off-by: Greg Kroah-Hartman

usb: typec: intel_pmc_mux: Use correct response message bits

2020-12-09T13:37:33+00:00

When Intel PMC Mux agent driver receives the response message from PMC, it
checks for the same response bits for all the mux states.
Corrected it by checking correct response message bits, Bit 8 & 9 for the
SAFE Mode and Alternate Modes and Bit 16 & 17 for the Connect and
Disconnect Modes.

Reviewed-by: Heikki Krogerus 
Signed-off-by: Utkarsh Patel 
Link: https://lore.kernel.org/r/20201203220813.16281-1-utkarsh.h.patel@intel.com
Signed-off-by: Greg Kroah-Hartman

usb: typec: intel_pmc_mux: Configure Thunderbolt cable generation bits

2020-11-18T11:53:45+00:00

Thunderbolt cable generation bits received as a part of Thunderbolt 3 cable
discover mode VDO needs to be configured for Thunderbolt rounded and
non-rounded cable support in the Thunderbolt alternate mode.

Signed-off-by: Utkarsh Patel 
Reviewed-by: Heikki Krogerus 
--
Changes in v2:
- No change.
--
Link: https://lore.kernel.org/r/20201113202503.6559-4-utkarsh.h.patel@intel.com
Signed-off-by: Greg Kroah-Hartman

Merge 5.0-rc6 into usb-next

2020-09-21T07:06:42+00:00

We want the USB fixes in here, and this resolves a merge issue in the
uas driver.

Signed-off-by: Greg Kroah-Hartman

usb: typec: intel_pmc_mux: Handle SCU IPC error conditions

2020-09-16T11:09:31+00:00

Check and return if there are errors. The response bits are valid
only on no errors.

Fixes: b7404a29cd3d ("usb: typec: intel_pmc_mux: Definitions for response status bits")
Signed-off-by: Madhusudanarao Amara 
Signed-off-by: Heikki Krogerus 
Link: https://lore.kernel.org/r/20200916091102.27118-4-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman

usb: typec: intel_pmc_mux: Pass correct USB Type-C port number to SoC

2020-09-16T10:42:36+00:00

The SoC expects the USB Type-C ports numbers to be starting with 0.
If the port number is passed as it is, the IOM status will not be
updated. The IOM port status check fails which will eventually
lead to PMC IPC communication failure.

Fixes: 43d596e32276 ("usb: typec: intel_pmc_mux: Check the port status before connect")
Suggested-by: Utkarsh Patel 
Signed-off-by: Azhar Shaikh 
Signed-off-by: Heikki Krogerus 
Link: https://lore.kernel.org/r/20200916091102.27118-3-heikki.krogerus@linux.intel.com
Signed-off-by: Greg Kroah-Hartman