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path: root/drivers/usb/typec/fusb302 (follow)
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2018-09-20usb: typec: Group all TCPCI/TCPM code togetherHeikki Krogerus4-2047/+0
Moving all the drivers that depend on the Port Controller Manager under a new directory drivers/usb/typec/tcpm/ and making Guenter Roeck the designated reviewer of that code. Acked-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-20usb: typec: fusb302: reorganizing the probe function a littleHeikki Krogerus1-16/+9
The debugfs needs to be initialized as the last step in probe in this case. The struct dentry *rootdir can't be pointing to anything unless driver probe really finishes successfully. It is also not necessary to clear the i2c clientdata if the probe fails, so removing the extra label used for that. Acked-by: Hans de Goede <hdegoede@redhat.com> Tested-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-20usb: typec: fusb302: Populate tcpc fwnode for TCPM property handlingAdam Thomson1-0/+3
This update populates the tcpc handle's fwnode pointer with the child usb-connector node, if it exists, so that TCPM can perform generic property handling to define the ports capabilities. Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-09-10USB: typec: fsusb302: remove unused variables snk_pdo and toggling_mode_nameColin Ian King1-11/+0
Variables snk_pdo and toggling_mode_name are defined but are not used and hence can be removed. Cleans up clang warnings: warning: 'snk_pdo' defined but not used [-Wunused-const-variable=] warning: 'toggling_mode_name' defined but not used [-Wunused-const-variable=] Signed-off-by: Colin Ian King <colin.king@canonical.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-07-02USB: typec: fsusb302: Drop empty set_current_limit implementationHans de Goede1-12/+0
The set_current_limit tcpm_dev callback is optional and the tcpm core will already log the passed in values, so there is no need to have an empty implementation of this. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-31USB: typec: fsusb302: no need to check return value of debugfs_create_dir()Greg Kroah-Hartman1-11/+4
When calling debugfs functions, there is no need to ever check the return value. The function can work or not, but the code logic should never do something different based on this. Clean up the fsusb302 driver to not care if the root directory was created, as the code should work properly either way. Cc: Heikki Krogerus <heikki.krogerus@linux.intel.com> Cc: Hans de Goede <hdegoede@redhat.com> Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-05-24usb: typec: fusb302: Fix debugfs issueHeikki Krogerus1-0/+1
Removing the "fusb302" debugfs directory when unloading the driver. That allows the driver to be loaded more then one time. The directory will not get actually removed until it is empty, so only after the last instance has been removed. This fixes an issue where the driver can't be re-loaded if it has been unloaded as the "fusb302" debugfs directory already exists. Fixes: 76f0c53d08b9 ("usb: typec: fusb302: Move out of staging") Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-25typec: tcpm: Represent source supply through power_supplyAdam Thomson2-62/+3
This commit adds a power_supply class instance to represent a PD source's voltage and current properties. This provides an interface for reading these properties from user-space or other drivers. For PPS enabled Sources, this also provides write access to set the current and voltage and allows for swapping between standard PDO and PPS APDO. As this represents a superset of the information provided in the fusb302 driver, the power_supply instance in that code is removed as part of this change, so reverting the commit titled 'typec: tcpm: Represent source supply through power_supply class' Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-04-22usb: typec: fusb302: remove max_snk_* for sink configLi Jun1-14/+28
Since max_snk_* is to be deprecated, so remove max_snk_* by adding a variable PDO for sink config. Reviewed-by: Hans de Goede <hdegoede@redhat.com> Signed-off-by: Li Jun <jun.li@nxp.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-22usb: typec: tcpm: Use new Type-C switch/mux and usb-role-switch functionsHans de Goede1-1/+0
Remove the unused (not implemented anywhere) tcpc_mux_dev abstraction and replace it with calling the new typec_set_orientation, usb_role_switch_set and typec_set_mode functions. Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-22usb: typec: Separate the definitions for data and power rolesHeikki Krogerus1-0/+1
USB Type-C specification v1.2 separated the power and data roles more clearly. Dual-Role-Data term was introduced, and the meaning of DRP was changed from "Dual-Role-Port" to "Dual-Role-Power". In order to allow the port drivers to describe the capabilities of the ports more clearly according to the newest specifications, introducing separate definitions for the data roles. Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-20Merge branch 4.16-rc6 into usb-nextGreg Kroah-Hartman1-1/+2
We want the USB fixes in here as well. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-09usb: typec: tcpm: fusb302: Do not log an error on -EPROBE_DEFERHans de Goede1-1/+2
Do not log an error if tcpm_register_port() fails with -EPROBE_DEFER. Fixes: cf140a356971 ("typec: fusb302: Use dev_err during probe") Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2018-03-09USB: typec: Re-use DEFINE_SHOW_ATTRIBUTE() macroAndy Shevchenko1-14/+3
...instead of open coding file operations followed by custom ->open() callbacks per each attribute. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Reviewed-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-12-06usb: typec: remove duplicate includesPravin Shedge1-1/+0
These duplicate includes have been found with scripts/checkincludes.pl but they have been removed manually to avoid removing false positives. Signed-off-by: Pravin Shedge <pravin.shedge4linux@gmail.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-28typec: tcpm: fusb302: Resolve out of order messaging eventsAdam Thomson1-4/+17
The expectation in the FUSB302 driver is that a TX_SUCCESS event should occur after a message has been sent, but before a GCRCSENT event is raised to indicate successful receipt of a message from the partner. However in some circumstances it is possible to see the hardware raise a GCRCSENT event before a TX_SUCCESS event is raised. The upshot of this is that the GCRCSENT handling portion of code ends up reporting the GoodCRC message to TCPM because the TX_SUCCESS event hasn't yet arrived to trigger a consumption of it. When TX_SUCCESS is then raised by the chip it ends up consuming the actual message that was meant for TCPM, and this incorrect sequence results in a hard reset from TCPM. To avoid this problem, this commit updates the message reading code to check whether a GoodCRC message was received or not. Based on this check it will either report that the previous transmission has completed or it will pass the msg data to TCPM for futher processing. This way the incorrect ordering of the events no longer matters. Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-28typec: fusb302: Use dev_err during probeMats Karrman1-9/+8
If probe fails, fusb302_debugfs_exit is called making it impossible to view any logs so use normal dev_err for any error messages during probe. Signed-off-by: Mats Karrman <mats.dev.list@gmail.com> Reviewed-by: Guenter Roeck <linux@roeck-us.net> Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-07USB: typec: Remove remaining redundant license textGreg Kroah-Hartman2-20/+0
Now that the SPDX tag is in all USB files, that identifies the license in a specific and legally-defined manner. So the extra GPL text wording can be removed as it is no longer needed at all. This is done on a quest to remove the 700+ different ways that files in the kernel describe the GPL license text. And there's unneeded stuff like the address (sometimes incorrect) for the FSF which is never needed. No copyright headers or other non-license-description text was removed. Cc: Guenter Roeck <linux@roeck-us.net> Cc: Hans de Goede <hdegoede@redhat.com> Cc: Yueyao Zhu <yueyao.zhu@gmail.com> Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Acked-by: Rui Miguel Silva <rmfrfs@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-07USB: typec: add SPDX identifiers to some filesGreg Kroah-Hartman2-0/+2
Due to these typec files being moved into the drivers/usb/ directory in this tree, they missed the larger "add SPDX tags to all files" work. So add the correct SPDX license tag, based on the license text in the file itself. The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. Cc: Guenter Roeck <linux@roeck-us.net> Cc: Hans de Goede <hdegoede@redhat.com> Cc: Yueyao Zhu <yueyao.zhu@gmail.com> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Kate Stewart <kstewart@linuxfoundation.org> Cc: Philippe Ombredanne <pombredanne@nexb.com> Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Acked-by: Rui Miguel Silva <rmfrfs@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-11-07USB: add SPDX identifiers to all remaining MakefilesGreg Kroah-Hartman1-0/+1
It's good to have SPDX identifiers in all files to make it easier to audit the kernel tree for correct licenses. This updates the remaining drivers/usb/*Makefile* that were missing SPDX identifiers. They all get the following identifier: SPDX-License-Identifier: GPL-2.0 The SPDX identifier is a legally binding shorthand, which can be used instead of the full boiler plate text. Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Kate Stewart <kstewart@linuxfoundation.org> Cc: Philippe Ombredanne <pombredanne@nexb.com> Cc: Peter Korsgaard <jacmet@sunsite.dk> Cc: Thomas Winischhofer <thomas@winischhofer.net> Cc: Johan Hovold <johan@kernel.org> Acked-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2017-09-18usb: typec: fusb302: Move out of stagingGuenter Roeck4-0/+2141
The driver is in good enough shape to be moved out of staging. Do it. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>