#
484468fb |
| 18-Jul-2023 |
Rob Herring <robh@kernel.org> |
usb: Explicitly include correct DT includes
The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it as merged into the regular platform bus. As part of that mer
usb: Explicitly include correct DT includes
The DT of_device.h and of_platform.h date back to the separate of_platform_bus_type before it as merged into the regular platform bus. As part of that merge prepping Arm DT support 13 years ago, they "temporarily" include each other. They also include platform_device.h and of.h. As a result, there's a pretty much random mix of those include files used throughout the tree. In order to detangle these headers and replace the implicit includes with struct declarations, users need to explicitly include the correct includes.
Acked-by: Herve Codina <herve.codina@bootlin.com> Signed-off-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20230718143027.1064731-1-robh@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
f817f271 |
| 04-Jun-2023 |
Christophe JAILLET <christophe.jaillet@wanadoo.fr> |
usb: usb251xb: Use of_property_read_u16()
Use of_property_read_u16() instead of of_property_read_u16_array() when only 1 element is read. This slightly simplifies the code.
Signed-off-by: Christoph
usb: usb251xb: Use of_property_read_u16()
Use of_property_read_u16() instead of of_property_read_u16_array() when only 1 element is read. This slightly simplifies the code.
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Message-ID: <97478908a814d4fa694e0ca44212c3776cf3e6e9.1685877052.git.christophe.jaillet@wanadoo.fr> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
7126a2ae |
| 17-May-2023 |
Uwe Kleine-König <u.kleine-koenig@pengutronix.de> |
usb: Switch i2c drivers back to use .probe()
After commit b8a1a4cd5a98 ("i2c: Provide a temporary .probe_new() call-back type"), all drivers being converted to .probe_new() and then 03c835f498b5 ("i
usb: Switch i2c drivers back to use .probe()
After commit b8a1a4cd5a98 ("i2c: Provide a temporary .probe_new() call-back type"), all drivers being converted to .probe_new() and then 03c835f498b5 ("i2c: Switch .probe() to not take an id parameter") convert back to (the new) .probe() to be able to eventually drop .probe_new() from struct i2c_driver.
While touching hd3ss3220.c fix a minor white space issue in the definition of struct hd3ss3220_driver.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20230517181528.167115-1-u.kleine-koenig@pengutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
2665eb8e |
| 11-Mar-2023 |
Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> |
usb: misc: usb251xb: drop of_match_ptr for ID table
The driver will match mostly by DT table (even thought there is regular ID table) so there is little benefit in of_match_ptr (this also allows ACP
usb: misc: usb251xb: drop of_match_ptr for ID table
The driver will match mostly by DT table (even thought there is regular ID table) so there is little benefit in of_match_ptr (this also allows ACPI matching via PRP0001, even though it might not be relevant here).
drivers/usb/misc/usb251xb.c:223:35: error: ‘usb2517i_data’ defined but not used [-Werror=unused-const-variable=] drivers/usb/misc/usb251xb.c:215:35: error: ‘usb2517_data’ defined but not used [-Werror=unused-const-variable=] drivers/usb/misc/usb251xb.c:207:35: error: ‘usb2514bi_data’ defined but not used [-Werror=unused-const-variable=]
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> Acked-by: Richard Leitner <richard.leitner@skidata.com> Link: https://lore.kernel.org/r/20230311173624.263189-7-krzysztof.kozlowski@linaro.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
f977caea |
| 10-Mar-2023 |
Rob Herring <robh@kernel.org> |
usb: Use of_property_read_bool() for boolean properties
It is preferred to use typed property access functions (i.e. of_property_read_<type> functions) rather than low-level of_get_property/of_find_
usb: Use of_property_read_bool() for boolean properties
It is preferred to use typed property access functions (i.e. of_property_read_<type> functions) rather than low-level of_get_property/of_find_property functions for reading properties. Convert reading boolean properties to to of_property_read_bool().
Signed-off-by: Rob Herring <robh@kernel.org> Reviewed-by: Richard Leitner <richard.leitner@skidata.com> Link: https://lore.kernel.org/r/20230310144729.1545857-1-robh@kernel.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
90714046 |
| 18-Nov-2022 |
Uwe Kleine-König <u.kleine-koenig@pengutronix.de> |
usb: usb251xb: Convert to i2c's .probe_new()
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@
usb: usb251xb: Convert to i2c's .probe_new()
The probe function doesn't make use of the i2c_device_id * parameter so it can be trivially converted.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Richard Leitner <richard.leitner@skidata.com> Link: https://lore.kernel.org/r/20221118224540.619276-573-uwe@kleine-koenig.org Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
3fbfcf0c |
| 22-Sep-2022 |
Yang Yingliang <yangyingliang@huawei.com> |
usb: usb251xb: Switch to use dev_err_probe() helper
In the probe path, dev_err() can be replaced with dev_err_probe() which will check if error code is -EPROBE_DEFER and prints the error name. It al
usb: usb251xb: Switch to use dev_err_probe() helper
In the probe path, dev_err() can be replaced with dev_err_probe() which will check if error code is -EPROBE_DEFER and prints the error name. It also sets the defer probe reason which can be checked later through debugfs. It's more simple in error path.
Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Link: https://lore.kernel.org/r/20220922123951.2004328-1-yangyingliang@huawei.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
b7db5733 |
| 18-Aug-2022 |
Wolfram Sang <wsa+renesas@sang-engineering.com> |
usb: move from strlcpy with unused retval to strscpy
Follow the advice of the below link and prefer 'strscpy' in this subsystem. Conversion is 1:1 because the return value is not used. Generated by
usb: move from strlcpy with unused retval to strscpy
Follow the advice of the below link and prefer 'strscpy' in this subsystem. Conversion is 1:1 because the return value is not used. Generated by a coccinelle script.
Link: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/ Reviewed-by: Richard Leitner <richard.leitner@skidata.com> Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Acked-by: Shuah Khan <skhan@linuxfoundation.org> Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com> Link: https://lore.kernel.org/r/20220818210116.7517-1-wsa+renesas@sang-engineering.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
5c2b9c61 |
| 28-Jan-2022 |
Tommaso Merciai <tomm.merciai@gmail.com> |
usb: usb251xb: add boost-up property support
Add support for boost-up register of usb251xb hub. boost-up property control USB electrical drive strength This register can be set:
- Normal mode -> 0
usb: usb251xb: add boost-up property support
Add support for boost-up register of usb251xb hub. boost-up property control USB electrical drive strength This register can be set:
- Normal mode -> 0x00 - Low -> 0x01 - Medium -> 0x10 - High -> 0x11
(Normal Default)
References: - http://www.mouser.com/catalog/specsheets/2514.pdf p29
Reviewed-by: Richard Leitner <richard.leitner@linux.dev> Signed-off-by: Tommaso Merciai <tomm.merciai@gmail.com> Link: https://lore.kernel.org/r/20220128181713.96856-1-tomm.merciai@gmail.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
9243eadc |
| 23-Jan-2021 |
Stephen Boyd <swboyd@chromium.org> |
usb: usb251xb: Use of_device_get_match_data()
Use the more modern API here instead of using of_match_device() and avoid casting away const from the returned pointer by pushing the const type through
usb: usb251xb: Use of_device_get_match_data()
Use the more modern API here instead of using of_match_device() and avoid casting away const from the returned pointer by pushing the const type through to the users. This nicely avoids referencing the match table when it is undefined with configurations where CONFIG_OF=n and avoids const issues.
Signed-off-by: Stephen Boyd <swboyd@chromium.org> Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Richard Leitner <richard.leitner@skidata.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Rob Herring <robh+dt@kernel.org> Cc: Frank Rowand <frowand.list@gmail.com> Cc: <linux-usb@vger.kernel.org> Signed-off-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/20210123034428.2841052-5-swboyd@chromium.org
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#
f06947f2 |
| 26-Feb-2020 |
Marco Felsch <m.felsch@pengutronix.de> |
usb: usb251xb: fix regulator probe and error handling
Commit 4d7201cda226 ("usb: usb251xb: add vdd supply support") didn't covered the non-DT use-case and so the regualtor_enable() call during probe
usb: usb251xb: fix regulator probe and error handling
Commit 4d7201cda226 ("usb: usb251xb: add vdd supply support") didn't covered the non-DT use-case and so the regualtor_enable() call during probe will fail on those platforms. Also the commit didn't handled the error case correctly.
Move devm_regulator_get() out of usb251xb_get_ofdata() to address the 1st issue. This can be done without worries because devm_regulator_get() handles the non-DT use-case too. Add devm_add_action_or_reset() to address the 2nd bug.
Fixes: 4d7201cda226 ("usb: usb251xb: add vdd supply support") Signed-off-by: Marco Felsch <m.felsch@pengutronix.de> Cc: stable <stable@vger.kernel.org> Acked-by: Richard Leitner <richard.leitner@skidata.com> Link: https://lore.kernel.org/r/20200226072644.18490-1-m.felsch@pengutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
cd7da3bc |
| 23-Oct-2019 |
Uwe Kleine-König <u.kleine-koenig@pengutronix.de> |
usb: usb251xb: Add support for USB2422
The USB2422 uses a different package that the USB251x and only comes in a variant with 2 downstream ports. Other than that it is software compatible.
Tested-b
usb: usb251xb: Add support for USB2422
The USB2422 uses a different package that the USB251x and only comes in a variant with 2 downstream ports. Other than that it is software compatible.
Tested-by: Carsten Stelling <carsten.stelling@goerlitz.com> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20191023105250.16537-3-u.kleine-koenig@pengutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
2a59aa77 |
| 23-Oct-2019 |
Uwe Kleine-König <u.kleine-koenig@pengutronix.de> |
usb: usb251xb: Drop some unused defines
The five removed symbols are unused since they were introduced in commit 3ec72a2a1e5d ("usb: misc: add USB251xB/xBi Hi-Speed Hub Controller Driver") back in 2
usb: usb251xb: Drop some unused defines
The five removed symbols are unused since they were introduced in commit 3ec72a2a1e5d ("usb: misc: add USB251xB/xBi Hi-Speed Hub Controller Driver") back in 2017.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20191023105250.16537-1-u.kleine-koenig@pengutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
905eccc6 |
| 17-Sep-2019 |
Marco Felsch <m.felsch@pengutronix.de> |
usb: usb251xb: add pm_ops
Currently the driver don't support pm_ops. These ops are not necessary if the supply isn't switchable (always on). This assumptions seems to be wrong because no one needs a
usb: usb251xb: add pm_ops
Currently the driver don't support pm_ops. These ops are not necessary if the supply isn't switchable (always on). This assumptions seems to be wrong because no one needs a powered hub during suspend-to-ram/disk.
So adding simple_dev_pm_ops to be able to switch off the hub during suspend and to restore the config after a resume operation.
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de> Acked-by: Richard Leitner <richard.leitner@skidata.com> Link: https://lore.kernel.org/r/20190917144449.32739-5-m.felsch@pengutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
a9bab255 |
| 17-Sep-2019 |
Marco Felsch <m.felsch@pengutronix.de> |
usb: usb251xb: simplify reset helper
Currently the reset handler was always called to deassert the reset line because assert the line was done during probe. Now if we want to support pm by turn of t
usb: usb251xb: simplify reset helper
Currently the reset handler was always called to deassert the reset line because assert the line was done during probe. Now if we want to support pm by turn of the supply we need to call this routine twice and the i2c_lock_bus is done twice too. To simplify that we can drop the state and just do a reset in one go. So a future pm operation don't need to lock the i2c bus twice.
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de> Reviewed-by: Richard Leitner <richard.leitner@skidata.com> Tested-by: Richard Leitner <richard.leitner@skidata.com> Link: https://lore.kernel.org/r/20190917144449.32739-4-m.felsch@pengutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
4d7201cd |
| 17-Sep-2019 |
Marco Felsch <m.felsch@pengutronix.de> |
usb: usb251xb: add vdd supply support
Currently we don't handle the supply. We need to add the supply support to be able to switch the supply off e.g. during a suspend-to-ram operation. So we can gu
usb: usb251xb: add vdd supply support
Currently we don't handle the supply. We need to add the supply support to be able to switch the supply off e.g. during a suspend-to-ram operation. So we can guarantee a correct (re-)initialization.
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de> Reviewed-by: Richard Leitner <richard.leitner@skidata.com> Tested-by: Richard Leitner <richard.leitner@skidata.com> Link: https://lore.kernel.org/r/20190917144449.32739-3-m.felsch@pengutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
4849ee61 |
| 19-Jul-2019 |
Lucas Stach <l.stach@pengutronix.de> |
usb: usb251xb: Reallow swap-dx-lanes to apply to the upstream port
This is a partial revert of 73d31def1aab "usb: usb251xb: Create a ports field collector method", which broke a existing devicetree
usb: usb251xb: Reallow swap-dx-lanes to apply to the upstream port
This is a partial revert of 73d31def1aab "usb: usb251xb: Create a ports field collector method", which broke a existing devicetree (arch/arm64/boot/dts/freescale/imx8mq.dtsi).
There is no reason why the swap-dx-lanes property should not apply to the upstream port. The reason given in the breaking commit was that it's inconsitent with respect to other port properties, but in fact it is not. All other properties which only apply to the downstream ports explicitly reject port 0, so there is pretty strong precedence that the driver referred to the upstream port as port 0. So there is no inconsistency in this property at all, other than the swapping being also applicable to the upstream port.
CC: stable@vger.kernel.org #5.2 Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Link: https://lore.kernel.org/r/20190719084407.28041-3-l.stach@pengutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
79f6fafa |
| 19-Jul-2019 |
Lucas Stach <l.stach@pengutronix.de> |
Revert "usb: usb251xb: Add US port lanes inversion property"
This property isn't needed and not yet used anywhere. The swap-dx-lanes property is perfectly fine for doing the swap on the upstream por
Revert "usb: usb251xb: Add US port lanes inversion property"
This property isn't needed and not yet used anywhere. The swap-dx-lanes property is perfectly fine for doing the swap on the upstream port lanes.
CC: stable@vger.kernel.org #5.2 Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Link: https://lore.kernel.org/r/20190719084407.28041-2-l.stach@pengutronix.de Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
6e7adf3e |
| 24-Apr-2019 |
Serge Semin <fancer.lancer@gmail.com> |
usb: usb251xb: Add US port lanes inversion property
The driver bindings already declare the "swap-dx-lanes" property to invert the downstream ports lanes polarity. The similar config can be defined
usb: usb251xb: Add US port lanes inversion property
The driver bindings already declare the "swap-dx-lanes" property to invert the downstream ports lanes polarity. The similar config can be defined for a single upstream port - "swap-us-lanes". It's going to be boolean since there is only one upstream port on the hub.
Signed-off-by: Serge Semin <fancer.lancer@gmail.com> Acked-by: Richard Leitner <richard.leitner@skidata.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
73d31def |
| 24-Apr-2019 |
Serge Semin <fancer.lancer@gmail.com> |
usb: usb251xb: Create a ports field collector method
Seeing the ports field collection functionality is used four times per just one function, it's better to have a dedicated method performing the t
usb: usb251xb: Create a ports field collector method
Seeing the ports field collection functionality is used four times per just one function, it's better to have a dedicated method performing the task. Note that this fix filters the port 0 out from the lanes swapping property the same way as it has been programmed for the rest multi-ports properties. But unlike the rest of ports config registers the BIT(0) of the Port Lanes Swap register refers to the Upstream Port lanes inversion. This fact hasn't been documented in the driver bindings nor there were any mentioning about port 0 being treated as upstream port. Lets then leave this fix as is for the properties unification and create an additional "swap-us-lanes" in the next patch.
Signed-off-by: Serge Semin <fancer.lancer@gmail.com> Acked-by: Richard Leitner <richard.leitner@skidata.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
95e060e6 |
| 27-Apr-2019 |
Serge Semin <fancer.lancer@gmail.com> |
usb: usb251xb: Add an empty hub' i2c-bus segment checker
It's pointless to scan the hub' i2c-bus segment if GPIOs aren't supported by the system, since no GPIO-driven reset could be cleared by the d
usb: usb251xb: Add an empty hub' i2c-bus segment checker
It's pointless to scan the hub' i2c-bus segment if GPIOs aren't supported by the system, since no GPIO-driven reset could be cleared by the driver then. Moreover if CONFIG_GPIOLIB is disabled the gpio_chip structure definition won't be available, which causes the incomplete type pointer dereference compilation error. In order to fix this we need to create an empty usb251x_check_gpio_chip() method returning zero, so the driver would skip the i2c-bus segment checking and proceed with further probing in this case.
Fixes: 6e3c8beb4f92 ("usb: usb251xb: Lock i2c-bus segment the hub resides") Reported-by: kbuild test robot <lkp@intel.com> Signed-off-by: Serge Semin <fancer.lancer@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
6e3c8beb |
| 24-Apr-2019 |
Serge Semin <fancer.lancer@gmail.com> |
usb: usb251xb: Lock i2c-bus segment the hub resides
SMBus slave configuration is activated by CFG_SEL[1:0]=0x1 pins state. This is the mode the hub is supposed to be to let this driver work correctl
usb: usb251xb: Lock i2c-bus segment the hub resides
SMBus slave configuration is activated by CFG_SEL[1:0]=0x1 pins state. This is the mode the hub is supposed to be to let this driver work correctly. But a race condition might happen right after reset is cleared due to CFG_SEL[0] pin being multiplexed with SMBus SCL function. In case if the reset pin is handled by a i2c GPIO expander, which is also placed at the same i2c-bus segment as the usb251x SMB-interface connected to, then the hub reset clearance might cause the CFG_SEL[0] being latched in unpredictable state. So sometimes the hub configuration mode might be 0x1 (as expected), but sometimes being 0x0, which doesn't imply to have the hub SMBus-slave interface activated and consequently causes this driver failure.
In order to fix the problem we must make sure the GPIO-reset chip doesn't reside the same i2c-bus segment as the SMBus-interface of the hub. If it doesn't, we can safely block the segment for the time the reset is cleared to prevent anyone generating a traffic at the i2c-bus SCL lane connected to the CFG_SEL[0] pin. But if it does, nothing we can do, so just return an error. If we locked the i2c-bus segment and tried to communicate with the GPIO-expander, it would cause a deadlock. If we didn't lock the i2c-bus segment, it would randomly cause the CFG_SEL[0] bit flip.
Signed-off-by: Serge Semin <fancer.lancer@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
41f00e6e |
| 20-Mar-2019 |
Aditya Pakki <pakki001@umn.edu> |
usb: usb251xb: fix to avoid potential NULL pointer dereference
of_match_device in usb251xb_probe can fail and returns a NULL pointer. The patch avoids a potential NULL pointer dereference in this sc
usb: usb251xb: fix to avoid potential NULL pointer dereference
of_match_device in usb251xb_probe can fail and returns a NULL pointer. The patch avoids a potential NULL pointer dereference in this scenario.
Signed-off-by: Aditya Pakki <pakki001@umn.edu> Reviewed-by: Richard Leitner <richard.leitner@skidata.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
22feda47 |
| 18-Mar-2019 |
Gustavo A. R. Silva <gustavo@embeddedor.com> |
usb: usb251xb: Remove unnecessary comparison of unsigned integer with >= 0
There is no need to compare *port* with >= 0 because such comparison of an unsigned value is always true.
Fix this by remo
usb: usb251xb: Remove unnecessary comparison of unsigned integer with >= 0
There is no need to compare *port* with >= 0 because such comparison of an unsigned value is always true.
Fix this by removing such comparison.
Addresses-Coverity-ID: 1443949 ("Unsigned compared against 0") Fixes: 02a50b875046 ("usb: usb251xb: add usb data lane port swap feature") Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com> Reviewed-by: Richard Leitner <richard.leitner@skidata.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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#
02a50b87 |
| 16-Jan-2019 |
Marco Felsch <m.felsch@pengutronix.de> |
usb: usb251xb: add usb data lane port swap feature
The HW can swap the USB differential-pair (D+/D-) for each port separately. So the USB signals can be re-aligned with a misplaced USB connector on
usb: usb251xb: add usb data lane port swap feature
The HW can swap the USB differential-pair (D+/D-) for each port separately. So the USB signals can be re-aligned with a misplaced USB connector on the PCB.
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de> Reviewed-by: Richard Leitner <richard.leitner@skidata.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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