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2022-11-30Input: elants_i2c - delete some dead codeDan Carpenter1-2/+0
We shuffled the error handling around so this condition is dead code now. The "error" variable is always zero. Signed-off-by: Dan Carpenter <error27@gmail.com> Reviewed-by: Douglas Anderson <dianders@chromium.org> Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com> Link: https://lore.kernel.org/r/Y33BD9xkRC9euIdO@kili Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-11-23HID: add mapping for camera access keysEray Orçunus2-0/+6
HUTRR72 added 3 new usage codes for keys that are supposed to enable, disable and toggle camera access. These are useful, considering many laptops today have key(s) for toggling access to camera. This patch adds new key definitions for KEY_CAMERA_ACCESS_ENABLE, KEY_CAMERA_ACCESS_DISABLE and KEY_CAMERA_ACCESS_TOGGLE. Additionally hid-debug is adjusted to recognize this new usage codes as well. Signed-off-by: Eray Orçunus <erayorcunus@gmail.com> Acked-by: Jiri Kosina <jkosina@suse.cz> Link: https://lore.kernel.org/r/20221029120311.11152-3-erayorcunus@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-11-23Input: stmpe-ts - drop obsolete dependency on COMPILE_TESTJean Delvare1-1/+1
Since commit 0166dc11be91 ("of: make CONFIG_OF user selectable"), it is possible to test-build any driver which depends on OF on any architecture by explicitly selecting OF. Therefore depending on COMPILE_TEST as an alternative is no longer needed. It is actually better to always build such drivers with OF enabled, so that the test builds are closer to how each driver will actually be built on its intended target. Building them without OF may not test much as the compiler will optimize out potentially large parts of the code. In the worst case, this could even pop false positive warnings. Dropping COMPILE_TEST here improves the quality of our testing and avoids wasting time on non-existent issues. Signed-off-by: Jean Delvare <jdelvare@suse.de> Link: https://lore.kernel.org/r/20221121145203.1efb0c08@endymion.delvare Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-11-23Input: raydium_ts_i2c - don't set wake_capable and wake_irqRaul E Rangel1-9/+0
The i2c-core will now handle setting the wake_irq and wake capability for DT and ACPI systems. Signed-off-by: Raul E Rangel <rrangel@chromium.org> Link: https://lore.kernel.org/r/20220929093200.v6.13.Ia0b24ab02c22125c5fd686cc25872bd26c27ac23@changeid Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-11-23Input: elants_i2c - don't set wake_capable and wake_irqRaul E Rangel1-16/+0
The i2c-core will now handle setting the wake_irq and wake capability for DT and ACPI systems. Signed-off-by: Raul E Rangel <rrangel@chromium.org> Link: https://lore.kernel.org/r/20220929093200.v6.12.I031ffbe411e1bae20bf16a1876da5baf444c7928@changeid Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-11-23Input: elan_i2c - don't set wake_capable and wake_irqRaul E Rangel1-16/+0
The i2c-core will now handle setting the wake_irq and wake capability for DT and ACPI systems. Signed-off-by: Raul E Rangel <rrangel@chromium.org> Link: https://lore.kernel.org/r/20220929093200.v6.11.I7309b8f322082437b93581c6e2953886eeb998d7@changeid Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-11-23HID: i2c-hid: Don't set wake_capable and wake_irqRaul E Rangel1-9/+0
The i2c-core will now handle setting the wake_irq for DT and ACPI systems. Signed-off-by: Raul E Rangel <rrangel@chromium.org> Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Link: https://lore.kernel.org/r/20220929093200.v6.10.Id22d056440953134d8e8fe2c2aff79c79bc78424@changeid Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-11-23HID: i2c-hid: acpi: Stop setting wakeup_capableRaul E Rangel1-5/+0
This is now handled by the i2c-core driver. Signed-off-by: Raul E Rangel <rrangel@chromium.org> Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Link: https://lore.kernel.org/r/20220929093200.v6.9.I2efb7f551e0aa2dc4c53b5fd5bbea91a1cdd9b32@changeid Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-11-23Input: raydium_ts_i2c - use PM subsystem to manage wake irqRaul E Rangel1-6/+10
The raydium I2C touchscreen driver is currently manually managing the wake IRQ. This change removes the explicit enable_irq_wake / disable_irq_wake and instead relies on the PM subsystem. This is done by calling dev_pm_set_wake_irq. i2c_device_probe already calls dev_pm_set_wake_irq when using device tree, and i2c_device_remove also already calls dev_pm_clear_wake_irq. There could be some device tree systems that have incorrectly declared `wake` capabilities, so this change will set the wake irq if one is missing. This matches the previous behavior. Signed-off-by: Raul E Rangel <rrangel@chromium.org> Link: https://lore.kernel.org/r/20220929093200.v6.4.I06b417b274bbecb31775a73993a7a3c1bc80de7b@changeid Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-11-23Input: elants_i2c - use PM subsystem to manage wake irqRaul E Rangel1-4/+11
The Elan I2C touchscreen driver is currently manually managing the wake IRQ. This change removes the explicit enable_irq_wake/disable_irq_wake and instead relies on the PM subsystem. This is done by calling dev_pm_set_wake_irq. i2c_device_probe already calls dev_pm_set_wake_irq when using device tree, and i2c_device_remove also already calls dev_pm_clear_wake_irq. There could be some device tree systems that have incorrectly declared `wake` capabilities, so this change will set the wake irq if one is missing. This matches the previous behavior. Signed-off-by: Raul E Rangel <rrangel@chromium.org> Link: https://lore.kernel.org/r/20220929093200.v6.3.I5862429ee3e4de0f9ad5ba01ce07ad99eec10cf0@changeid Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-11-23Input: elan_i2c - use PM subsystem to manage wake irqRaul E Rangel1-7/+10
The Elan I2C touchpad driver is currently manually managing the wake IRQ. This change removes the explicit enable_irq_wake/disable_irq_wake and instead relies on the PM subsystem. This is done by calling dev_pm_set_wake_irq. i2c_device_probe already calls dev_pm_set_wake_irq when using device tree, and i2c_device_remove also already calls dev_pm_clear_wake_irq. There could be some device tree systems that have incorrectly declared `wake` capabilities, so this change will set the wake irq if one is missing. This matches the previous behavior. I tested this on an ACPI system where the touchpad doesn't have _PRW defined. I verified I can still wake the system and that the wake source was the touchpad IRQ GPIO. Signed-off-by: Raul E Rangel <rrangel@chromium.org> Link: https://lore.kernel.org/r/20220929093200.v6.2.Id022caf53d01112188308520915798f08a33cd3e@changeid Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-11-23HID: i2c-hid: Use PM subsystem to manage wake irqRaul E Rangel1-21/+12
The I2C hid driver is currently manually managing the wake IRQ. This change removes the explicit enable_irq_wake/disable_irq_wake and instead relies on the PM subsystem. This is done by calling dev_pm_set_wake_irq. i2c_device_probe already calls dev_pm_set_wake_irq when using device tree, and i2c_device_remove also already calls dev_pm_clear_wake_irq. There could be some device tree systems that have incorrectly declared `wake` capabilities, so this change will set the wake irq if one is missing. This matches the previous behavior. I tested this on an ACPI system that has a HID touchscreen and verified the IRQ was armed for wake on suspend. Signed-off-by: Raul E Rangel <rrangel@chromium.org> Acked-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Link: https://lore.kernel.org/r/20220929093200.v6.1.Id4b4bdfe06e2caf2d5a3c9dd4a9b1080c38b539c@changeid Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-11-18Input: max8997 - convert to modern way to get a reference to a PWMUwe Kleine-König1-4/+3
pwm_request() isn't recommended to be used any more because it relies on global IDs for the PWM which comes with different difficulties. The new way to do things is to find the right PWM using a reference from the platform device. (This can be created either using a device-tree or a platform lookup table, see e.g. commit 5a4412d4a82f ("ARM: pxa: tavorevb: Use PWM lookup table") how to do this.) There are no in-tree users, so there are no other code locations that need adaption. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Acked-by: Lee Jones <lee@kernel.org> Link: https://lore.kernel.org/r/20221117073543.3790449-1-u.kleine-koenig@pengutronix.de Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-11-18Input: elants_i2c - properly handle the reset GPIO when power is offDouglas Anderson1-6/+3
As can be seen in elants_i2c_power_off(), we want the reset GPIO asserted when power is off. The reset GPIO is active low so we need the reset line logic low when power is off to avoid leakage. We have a problem, though, at probe time. At probe time we haven't powered the regulators on yet but we have: devm_gpiod_get(&client->dev, "reset", GPIOD_OUT_LOW); While that _looks_ right, it turns out that it's not. The GPIOD_OUT_LOW doesn't mean to init the GPIO to low. It means init the GPIO to "not asserted". Since this is an active low GPIO that inits it to be high. Let's fix this to properly init the GPIO. Now after both probe and power off the state of the GPIO is consistent (it's "asserted" or level low). Once we fix this, we can see that at power on time we no longer to assert the reset GPIO as the first thing. The reset GPIO is _always_ asserted before powering on. Let's fix powering on to account for this. Fixes: afe10358e47a ("Input: elants_i2c - wire up regulator support") Signed-off-by: Douglas Anderson <dianders@chromium.org> Link: https://lore.kernel.org/r/20221117123805.1.I9959ac561dd6e1e8e1ce7085e4de6167b27c574f@changeid Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-11-18Input: hynitron_cstxxx - initialize tmp to 0 to fix uninitialized variable issueChris Morgan1-1/+1
In the very unlikely event the cst3xx_i2c_write() fails inside of the cst3xx_bootloader_enter() function 5 times in a row, the uninitalized value of tmp will get compared to CST3XX_BOOTLDR_CHK_VAL. Initialize the value of tmp to 0 so that in this unlikely event we are comparing 0 instead of an uninitalized variable. Fixes: 66603243f528 ("Input: add driver for Hynitron cstxxx touchscreens") Signed-off-by: Chris Morgan <macromorgan@hotmail.com> Reported-by: Dan Carpenter <error27@gmail.com> Link: https://lore.kernel.org/r/20221117195921.2291-1-macroalpha82@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-11-17Input: msg2638 - add support for msg2138 key eventsVincent Knecht1-4/+58
Some devices with msg2138 have back/menu/home keys. Add support for them. Signed-off-by: Vincent Knecht <vincent.knecht@mailoo.org> Link: https://lore.kernel.org/r/20221116211622.2155747-3-vincent.knecht@mailoo.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-11-15Input: msg2638 - add support for msg2138Vincent Knecht1-0/+93
msg2138 only supports 2 fingers presses, and needs different processing since second finger press is encoded as a delta position wrt. first one and the packet/touch_event structs are not the same as msg2638. Add support for it by implementing distinct structs and irq handler. Signed-off-by: Vincent Knecht <vincent.knecht@mailoo.org> Link: https://lore.kernel.org/r/20221110171952.34207-4-vincent.knecht@mailoo.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-11-15Input: msg2638 - set max finger number and irqhandler from driver dataVincent Knecht1-10/+30
This will allow us to add other MStar touchscreen variants' support. No functional change. Signed-off-by: Vincent Knecht <vincent.knecht@mailoo.org> Link: https://lore.kernel.org/r/20221110171952.34207-2-vincent.knecht@mailoo.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-11-07Input: Use kstrtobool() instead of strtobool()Christophe JAILLET1-1/+2
strtobool() is the same as kstrtobool(). However, the latter is more used within the kernel. In order to remove strtobool() and slightly simplify kstrtox.h, switch to the other function name. While at it, include the corresponding header file (<linux/kstrtox.h>) Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr> Acked-by: Dmitry Torokhov <dmitry.torokhov@gmail.com> Link: https://lore.kernel.org/r/4311e9cb62687449f4175e2b062abcd77aada059.1667336095.git.christophe.jaillet@wanadoo.fr Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-11-07Input: joystick - fix Kconfig warning for JOYSTICK_ADCRandy Dunlap1-0/+1
Fix a Kconfig warning for JOYSTICK_ADC by also selecting IIO_BUFFER. WARNING: unmet direct dependencies detected for IIO_BUFFER_CB Depends on [n]: IIO [=y] && IIO_BUFFER [=n] Selected by [y]: - JOYSTICK_ADC [=y] && INPUT [=y] && INPUT_JOYSTICK [=y] && IIO [=y] Fixes: 2c2b364fddd5 ("Input: joystick - add ADC attached joystick driver.") Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Link: https://lore.kernel.org/r/20221104201238.31628-1-rdunlap@infradead.org Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-11-07Input: add driver for Himax hx83112b touchscreen devicesJob Noorman3-0/+378
This patch adds support for Himax hx83112b touchscreen devices. As there are no publicly available data sheets for these devices, the implementation is based on the driver of the downstream Android kernel used in the Fairphone 3. This patch is a complete rewrite, though, and the code bears no resemblence to the original implementation. The driver has been tested on the aforementioned phone. Signed-off-by: Job Noorman <job@noorman.info> Reviewed-by: Jeff LaBundy <jeff@labundy.com> Link: https://lore.kernel.org/r/20221107105604.26541-3-job@noorman.info Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-11-03Input: matrix_keypad - force switch rows to input modeSiarhei Volkau1-0/+3
Some Pin/GPIO controllers can't get current GPIO status when interrupt mode is set. Specifically Ingenic's JZ4755 always returns status at the moment of interrupt. The patch tries to fix that by forcibly setting pin mode to GPIO input prior to reading actual row status. enable_row_irqs seems to set interrupt mode back as it should be. Signed-off-by: Siarhei Volkau <lis8215@gmail.com> Link: https://lore.kernel.org/r/20221102165747.1528988-1-lis8215@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-11-01Input: Add driver for Cypress Generation 5 touchscreenAlistair Francis3-0/+918
This is the basic driver for the Cypress TrueTouch Gen5 touchscreen controllers. This driver supports only the I2C bus but it uses regmap so SPI support could be added later. The touchscreen can retrieve some defined zone that are handled as buttons (according to the hardware). That is why it handles button and multitouch events. Reviewed-by: Maxime Ripard <maxime.ripard@bootlin.com> Signed-off-by: Mylène Josserand <mylene.josserand@bootlin.com> Signed-off-by: Alistair Francis <alistair@alistair23.me> Tested-by: Andreas Kemnade <andreas@kemnade.info> # Kobo Clara HD Tested-by: Peter Geis <pgwipeout@gmail.com> Link: https://lore.kernel.org/r/20221026114908.191472-2-alistair@alistair23.me Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-10-30Input: add driver for Hynitron cstxxx touchscreensChris Morgan3-0/+511
Add support for the Hynitron cst3xx controller found on devices such as the Anbernic RG353P and RG353V (the Hynitron CST340). This driver was built from sources provided by Hynitron to Anbernic (possibly via Rockchip as an intermediary) and marked as GPLv2 in the code. This driver was written strictly for the cst3xx series, but in most places was left somewhat generic so support could be easily added to other devices in the future. Signed-off-by: Chris Morgan <macromorgan@hotmail.com> Link: https://lore.kernel.org/r/20221028202636.14341-4-macroalpha82@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-10-28Input: stmpe-keypad - add missing of.h includeDmitry Torokhov1-0/+1
The driver is using of_property_read_u32() and therefore needs to include of.h header. Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-10-24iio: adc: twl4030-madc: add missing of.h includeDmitry Torokhov1-0/+1
The driver is using of_device_id/of_match_ptr() and therefore needs to include of.h header. We used to get this definition indirectly via inclusion of matrix_keypad.h from twl.h, but we are cleaning up matrix_keypad.h from unnecessary includes. Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Acked-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Link: https://lore.kernel.org/r/20220927154611.3330871-3-dmitry.torokhov@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-10-24Input: tps6507x-ts - remove variable loopsColin Ian King1-2/+0
The variable loops is being incremented but is never referenced, it is redundant and can be removed. Signed-off-by: Colin Ian King <colin.i.king@gmail.com> Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com> Link: https://lore.kernel.org/r/20221020181642.24417-1-colin.i.king@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-10-24Input: iqs7222 - add support for IQS7222A v1.13+Jeff LaBundy1-0/+111
IQS7222A revisions 1.13 and later widen the gesture multiplier from x4 ms to x16 ms. Add a means to scale the gesture timings specified in the device tree based on the revision of the device. Fixes: e505edaedcb9 ("Input: add support for Azoteq IQS7222A/B/C") Signed-off-by: Jeff LaBundy <jeff@labundy.com> Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com> Link: https://lore.kernel.org/r/Y1SRdbK1Dp2q7O8o@nixie71 Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-10-24Input: iqs7222 - protect against undefined slider sizeJeff LaBundy1-1/+8
Select variants of silicon do not define a default slider size, in which case the size must be specified in the device tree. If it is not, the axis's maximum value is reported as 65535 due to unsigned integer overflow. To solve this problem, move the existing zero-check outside of the conditional block that checks whether the property is present. Fixes: e505edaedcb9 ("Input: add support for Azoteq IQS7222A/B/C") Signed-off-by: Jeff LaBundy <jeff@labundy.com> Link: https://lore.kernel.org/r/Y1SRXEi7XMlncDWk@nixie71 Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-10-24Input: iqs7222 - report malformed propertiesJeff LaBundy1-8/+36
Nonzero return values of several calls to fwnode_property_read_u32() are silently ignored, leaving no way to know the properties were not applied in the event of an error. Solve this problem by evaluating fwnode_property_read_u32()'s return value, and reporting an error for any nonzero return value not equal to -EINVAL which indicates the property was absent altogether. Fixes: e505edaedcb9 ("Input: add support for Azoteq IQS7222A/B/C") Signed-off-by: Jeff LaBundy <jeff@labundy.com> Reviewed-by: Mattijs Korpershoek <mkorpershoek@baylibre.com> Link: https://lore.kernel.org/r/Y1SRRrpQXvkETjfm@nixie71 Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-10-24Input: iqs7222 - drop unused device node referencesJeff LaBundy1-194/+146
Each call to device/fwnode_get_named_child_node() must be matched with a call to fwnode_handle_put() once the corresponding node is no longer in use. This ensures a reference count remains balanced in the case of dynamic device tree support. Currently, the driver never calls fwnode_handle_put(). Solve this problem by moving the node handling from iqs7222_parse_props() to the new iqs7222_parse_reg_grp(), leaving the former to do nothing but parse properties. The latter then manages the reference count in a single location and consistent fashion. This change drastically simplifies iqs7222_parse_all(), which can then call iqs7222_parse_reg_grp() on every register group without having to treat each register group differently. For nested event nodes, common parsing code has been factored out to the new iqs7222_parse_event() so as to allow the event node to be dropped from as few locations as possible. As part of this refactor, the 'linux,code' property has been made optional. This enables applications that define an event with the sole purpose of enabling a GPIO. Fixes: e505edaedcb9 ("Input: add support for Azoteq IQS7222A/B/C") Signed-off-by: Jeff LaBundy <jeff@labundy.com> Link: https://lore.kernel.org/r/Y1SRJIQ3WPwNpC0K@nixie71 Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-10-24Input: egalax_ts - do not hardcode interrupt triggerDmitry Torokhov1-4/+3
Stop hard-coding interrupt trigger, instead rely on the platform code to do the right thing, according to DT or ACPI data. Link: https://lore.kernel.org/r/20220920042608.1865560-4-dmitry.torokhov@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-10-24Input: egalax_ts - switch to using gpiod APIDmitry Torokhov1-25/+17
This updates the driver to gpiod API, and removes yet another use of of_get_named_gpio(). Link: https://lore.kernel.org/r/20220920042608.1865560-3-dmitry.torokhov@gmail.com Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
2022-10-17Merge tag 'v6.1-rc1' into nextDmitry Torokhov5467-112227/+330668
Merge with mainline to bring in the latest changes to twl4030 driver.
2022-10-17Merge tag 'random-6.1-rc1-for-linus' of ↵Linus Torvalds57-116/+103
git://git.kernel.org/pub/scm/linux/kernel/git/crng/random Pull more random number generator updates from Jason Donenfeld: "This time with some large scale treewide cleanups. The intent of this pull is to clean up the way callers fetch random integers. The current rules for doing this right are: - If you want a secure or an insecure random u64, use get_random_u64() - If you want a secure or an insecure random u32, use get_random_u32() The old function prandom_u32() has been deprecated for a while now and is just a wrapper around get_random_u32(). Same for get_random_int(). - If you want a secure or an insecure random u16, use get_random_u16() - If you want a secure or an insecure random u8, use get_random_u8() - If you want secure or insecure random bytes, use get_random_bytes(). The old function prandom_bytes() has been deprecated for a while now and has long been a wrapper around get_random_bytes() - If you want a non-uniform random u32, u16, or u8 bounded by a certain open interval maximum, use prandom_u32_max() I say "non-uniform", because it doesn't do any rejection sampling or divisions. Hence, it stays within the prandom_*() namespace, not the get_random_*() namespace. I'm currently investigating a "uniform" function for 6.2. We'll see what comes of that. By applying these rules uniformly, we get several benefits: - By using prandom_u32_max() with an upper-bound that the compiler can prove at compile-time is ≤65536 or ≤256, internally get_random_u16() or get_random_u8() is used, which wastes fewer batched random bytes, and hence has higher throughput. - By using prandom_u32_max() instead of %, when the upper-bound is not a constant, division is still avoided, because prandom_u32_max() uses a faster multiplication-based trick instead. - By using get_random_u16() or get_random_u8() in cases where the return value is intended to indeed be a u16 or a u8, we waste fewer batched random bytes, and hence have higher throughput. This series was originally done by hand while I was on an airplane without Internet. Later, Kees and I worked on retroactively figuring out what could be done with Coccinelle and what had to be done manually, and then we split things up based on that. So while this touches a lot of files, the actual amount of code that's hand fiddled is comfortably small" * tag 'random-6.1-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random: prandom: remove unused functions treewide: use get_random_bytes() when possible treewide: use get_random_u32() when possible treewide: use get_random_{u8,u16}() when possible, part 2 treewide: use get_random_{u8,u16}() when possible, part 1 treewide: use prandom_u32_max() when possible, part 2 treewide: use prandom_u32_max() when possible, part 1
2022-10-16Merge tag 'clk-for-linus' of ↵Linus Torvalds15-124/+1810
git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux Pull more clk updates from Stephen Boyd: "This is the final part of the clk patches for this merge window. The clk rate range series needed another week to fully bake. Maxime fixed the bug that broke clk notifiers and prevented this from being included in the first pull request. He also added a unit test on top to make sure it doesn't break so easily again. The majority of the series fixes up how the clk_set_rate_*() APIs work, particularly around when the rate constraints are dropped and how they move around when reparenting clks. Overall it's a much needed improvement to the clk rate range APIs that used to be pretty broken if you looked sideways. Beyond the core changes there are a few driver fixes for a compilation issue or improper data causing clks to fail to register or have the wrong parents. These are good to get in before the first -rc so that the system actually boots on the affected devices" * tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (31 commits) clk: tegra: Fix Tegra PWM parent clock clk: at91: fix the build with binutils 2.27 clk: qcom: gcc-msm8660: Drop hardcoded fixed board clocks clk: mediatek: clk-mux: Add .determine_rate() callback clk: tests: Add tests for notifiers clk: Update req_rate on __clk_recalc_rates() clk: tests: Add missing test case for ranges clk: qcom: clk-rcg2: Take clock boundaries into consideration for gfx3d clk: Introduce the clk_hw_get_rate_range function clk: Zero the clk_rate_request structure clk: Stop forwarding clk_rate_requests to the parent clk: Constify clk_has_parent() clk: Introduce clk_core_has_parent() clk: Switch from __clk_determine_rate to clk_core_round_rate_nolock clk: Add our request boundaries in clk_core_init_rate_req clk: Introduce clk_hw_init_rate_request() clk: Move clk_core_init_rate_req() from clk_core_round_rate_nolock() to its caller clk: Change clk_core_init_rate_req prototype clk: Set req_rate on reparenting clk: Take into account uncached clocks in clk_set_rate_range() ...
2022-10-16Merge tag 'pci-v6.1-fixes-1' of ↵Linus Torvalds1-61/+1
git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci Pull pci fix from Bjorn Helgaas: "Revert the attempt to distribute spare resources to unconfigured hotplug bridges at boot time. This fixed some dock hot-add scenarios, but Jonathan Cameron reported that it broke a topology with a multi-function device where one function was a Switch Upstream Port and the other was an Endpoint" * tag 'pci-v6.1-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/helgaas/pci: Revert "PCI: Distribute available resources for root buses, too"
2022-10-15Merge tag 'libnvdimm-for-6.1' of ↵Linus Torvalds5-28/+18
git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm Pull nvdimm updates from Dan Williams: "Some small cleanups and fixes in and around the nvdimm subsystem. The most significant change is a regression fix for nvdimm namespace (volume) creation when the namespace size is smaller than 2MB/ Summary: - Fix nvdimm namespace creation on platforms that do not publish associated 'DIMM' metadata for a persistent memory region. - Miscellaneous fixes and cleanups" * tag 'libnvdimm-for-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: ACPI: HMAT: Release platform device in case of platform_device_add_data() fails dax: Remove usage of the deprecated ida_simple_xxx API libnvdimm/region: Allow setting align attribute on regions without mappings nvdimm/namespace: Fix comment typo nvdimm: make __nvdimm_security_overwrite_query static nvdimm/region: Fix kernel-doc nvdimm/namespace: drop unneeded temporary variable in size_store() nvdimm/namespace: return uuid_null only once in nd_dev_to_uuid()
2022-10-15Merge tag 'rtc-6.1' of ↵Linus Torvalds11-247/+98
git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux Pull RTC updates from Alexandre Belloni: "A great rework of the isl12022 driver makes up the bulk of the changes. There is also an important fix for CMOS and then the usual small fixes: - switch to devm_clk_get_enabled() where relevant - cmos: event handler registration fix - isl12022: code improvements" * tag 'rtc-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/abelloni/linux: rtc: rv3028: Fix codestyle errors rtc: cmos: Fix event handler registration ordering issue rtc: k3: Use devm_clk_get_enabled() helper rtc: jz4740: Use devm_clk_get_enabled() helper rtc: mpfs: Use devm_clk_get_enabled() helper rtc: ds1685: Fix spelling of function name in comment block rtc: isl12022: switch to using regmap API rtc: isl12022: drop redundant write to HR register rtc: isl12022: use dev_set_drvdata() instead of i2c_set_clientdata() rtc: isl12022: use %ptR rtc: isl12022: simplify some expressions rtc: isl12022: drop a dev_info() rtc: isl12022: specify range_min and range_max rtc: isl12022: stop using deprecated devm_rtc_device_register() rtc: stmp3xxx: Add failure handling for stmp3xxx_wdt_register() rtc: mxc: Use devm_clk_get_enabled() helper rtc: gamecube: Always reset HW_SRNPROT after read rtc: k3: detect SoC to determine erratum fix rtc: k3: wait until the unlock field is not zero rtc: mpfs: Remove printing of stray CR
2022-10-15Merge tag 'i3c/for-6.1' of ↵Linus Torvalds1-4/+3
git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux Pull i3c updates from Alexandre Belloni: "Not much this cycle, only two fixes for a rare event" - fix device reattach issues" * tag 'i3c/for-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux: i3c: master: Remove the wrong place of reattach. i3c: master: Free the old_dyn_addr when reattach.
2022-10-15Merge tag 'for-linus-6.1-rc1' of ↵Linus Torvalds10-27/+32
git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs Pull UBI and UBIFS updates from Richard Weinberger: "UBI: - Use bitmap API to allocate bitmaps - New attach mode, disable_fm, to attach without fastmap - Fixes for various typos in comments UBIFS: - Fix for a deadlock when setting xattrs for encrypted file - Fix for an assertion failures when truncating encrypted files - Fixes for various typos in comments" * tag 'for-linus-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs: ubi: fastmap: Add fastmap control support for 'UBI_IOCATT' ioctl ubi: fastmap: Use the bitmap API to allocate bitmaps ubifs: Fix AA deadlock when setting xattr for encrypted file ubifs: Fix UBIFS ro fail due to truncate in the encrypted directory mtd: ubi: drop unexpected word 'a' in comments ubi: block: Fix typos in comments ubi: fastmap: Fix typo in comments ubi: Fix repeated words in comments ubi: ubi-media.h: Fix comment typo ubi: block: Remove in vain semicolon ubifs: Fix ubifs_check_dir_empty() kernel-doc comment
2022-10-14Merge tag 'arm-fixes-6.1-1' of ↵Linus Torvalds2-0/+2
git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc Pull ARM SoC fixes from Arnd Bergmann: "These are three fixes for build warnings that came in during the merge window" * tag 'arm-fixes-6.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: ARM: mmp: Make some symbols static ARM: spear6xx: Staticize few definitions clk: spear: Move prototype to accessible header
2022-10-14Merge branch 'clk-rate-range' into clk-nextStephen Boyd9-113/+1805
- Various clk rate range fixes - Drop clk rate range constraints on clk_put() (redux) * clk-rate-range: (28 commits) clk: mediatek: clk-mux: Add .determine_rate() callback clk: tests: Add tests for notifiers clk: Update req_rate on __clk_recalc_rates() clk: tests: Add missing test case for ranges clk: qcom: clk-rcg2: Take clock boundaries into consideration for gfx3d clk: Introduce the clk_hw_get_rate_range function clk: Zero the clk_rate_request structure clk: Stop forwarding clk_rate_requests to the parent clk: Constify clk_has_parent() clk: Introduce clk_core_has_parent() clk: Switch from __clk_determine_rate to clk_core_round_rate_nolock clk: Add our request boundaries in clk_core_init_rate_req clk: Introduce clk_hw_init_rate_request() clk: Move clk_core_init_rate_req() from clk_core_round_rate_nolock() to its caller clk: Change clk_core_init_rate_req prototype clk: Set req_rate on reparenting clk: Take into account uncached clocks in clk_set_rate_range() clk: tests: Add some tests for orphan with multiple parents clk: tests: Add tests for mux with multiple parents clk: tests: Add tests for single parent mux ...
2022-10-14clk: tegra: Fix Tegra PWM parent clockJon Hunter5-0/+5
Commit 8c193f4714df ("pwm: tegra: Optimize period calculation") updated the period calculation in the Tegra PWM driver and now returns an error if the period requested is less than minimum period supported. This is breaking PWM support on various Tegra platforms. For example, on the Tegra210 Jetson Nano platform this is breaking the PWM fan support and probing the PWM fan driver now fails ... pwm-fan pwm-fan: Failed to configure PWM: -22 pwm-fan: probe of pwm-fan failed with error -22 The problem is that the default parent clock for the PWM on Tegra210 is a 32kHz clock and is unable to support the requested PWM period. Fix PWM support on Tegra20, Tegra30, Tegra114, Tegra124 and Tegra210 by updating the parent clock for the PWM to be the PLL_P. Fixes: 8c193f4714df ("pwm: tegra: Optimize period calculation") Signed-off-by: Jon Hunter <jonathanh@nvidia.com> Tested-by: Robert Eckelmann <longnoserob@gmail.com> # TF101 T20 Tested-by: Antoni Aloy Torrens <aaloytorrens@gmail.com> # TF101 T20 Tested-by: Svyatoslav Ryhel <clamor95@gmail.com> # TF201 T30 Tested-by: Andreas Westman Dorcsak <hedmoo@yahoo.com> # TF700T T3 Link: https://lore.kernel.org/r/20221010100046.6477-1-jonathanh@nvidia.com Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2022-10-14clk: qcom: gcc-msm8660: Drop hardcoded fixed board clocksLinus Walleij1-11/+0
These two clocks are now registered in the device tree as fixed clocks, causing a regression in the driver as the clock already exists with e.g. the name "pxo_board" as the MSM8660 GCC driver probes. Fix this by just not hard-coding this anymore and everything works like a charm. Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> Fixes: baecbda52933 ("ARM: dts: qcom: msm8660: fix node names for fixed clocks") Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20221013140745.7801-1-linus.walleij@linaro.org Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2022-10-14clk: mediatek: clk-mux: Add .determine_rate() callbackAngeloGioacchino Del Regno1-0/+10
Since commit 262ca38f4b6e ("clk: Stop forwarding clk_rate_requests to the parent"), the clk_rate_request is .. as the title says, not forwarded anymore to the parent: this produces an issue with the MediaTek clock MUX driver during GPU DVFS on MT8195, but not on MT8192 or others. This is because, differently from others, like MT8192 where all of the clocks in the MFG parents tree are of mtk_mux type, but in the parent tree of MT8195's MFG clock, we have one mtk_mux clock and one (clk framework generic) mux clock, like so: names: mfg_bg3d -> mfg_ck_fast_ref -> top_mfg_core_tmp (or) mfgpll types: mtk_gate -> mux -> mtk_mux (or) mtk_pll To solve this issue and also keep the GPU DVFS clocks code working as expected, wire up a .determine_rate() callback for the mtk_mux ops; for that, the standard clk_mux_determine_rate_flags() was used as it was possible to. This commit was successfully tested on MT6795 Xperia M5, MT8173 Elm, MT8192 Spherion and MT8195 Tomato; no regressions were seen. For the sake of some more documentation about this issue here's the trace of it: [ 12.211587] ------------[ cut here ]------------ [ 12.211589] WARNING: CPU: 6 PID: 78 at drivers/clk/clk.c:1462 clk_core_init_rate_req+0x84/0x90 [ 12.211593] Modules linked in: stp crct10dif_ce mtk_adsp_common llc rfkill snd_sof_xtensa_dsp panfrost(+) sbs_battery cros_ec_lid_angle cros_ec_sensors snd_sof_of cros_ec_sensors_core hid_multitouch cros_usbpd_logger snd_sof gpu_sched snd_sof_utils fuse ipv6 [ 12.211614] CPU: 6 PID: 78 Comm: kworker/u16:2 Tainted: G W 6.0.0-next-20221011+ #58 [ 12.211616] Hardware name: Acer Tomato (rev2) board (DT) [ 12.211617] Workqueue: devfreq_wq devfreq_monitor [ 12.211620] pstate: 40400009 (nZcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) [ 12.211622] pc : clk_core_init_rate_req+0x84/0x90 [ 12.211625] lr : clk_core_forward_rate_req+0xa4/0xe4 [ 12.211627] sp : ffff80000893b8e0 [ 12.211628] x29: ffff80000893b8e0 x28: ffffdddf92f9b000 x27: ffff46a2c0e8bc05 [ 12.211632] x26: ffff46a2c1041200 x25: 0000000000000000 x24: 00000000173eed80 [ 12.211636] x23: ffff80000893b9c0 x22: ffff80000893b940 x21: 0000000000000000 [ 12.211641] x20: ffff46a2c1039f00 x19: ffff46a2c1039f00 x18: 0000000000000000 [ 12.211645] x17: 0000000000000038 x16: 000000000000d904 x15: 0000000000000003 [ 12.211649] x14: ffffdddf9357ce48 x13: ffffdddf935e71c8 x12: 000000000004803c [ 12.211653] x11: 00000000a867d7ad x10: 00000000a867d7ad x9 : ffffdddf90c28df4 [ 12.211657] x8 : ffffdddf9357a980 x7 : 0000000000000000 x6 : 0000000000000004 [ 12.211661] x5 : ffffffffffffffc8 x4 : 00000000173eed80 x3 : ffff80000893b940 [ 12.211665] x2 : 00000000173eed80 x1 : ffff80000893b940 x0 : 0000000000000000 [ 12.211669] Call trace: [ 12.211670] clk_core_init_rate_req+0x84/0x90 [ 12.211673] clk_core_round_rate_nolock+0xe8/0x10c [ 12.211675] clk_mux_determine_rate_flags+0x174/0x1f0 [ 12.211677] clk_mux_determine_rate+0x1c/0x30 [ 12.211680] clk_core_determine_round_nolock+0x74/0x130 [ 12.211682] clk_core_round_rate_nolock+0x58/0x10c [ 12.211684] clk_core_round_rate_nolock+0xf4/0x10c [ 12.211686] clk_core_set_rate_nolock+0x194/0x2ac [ 12.211688] clk_set_rate+0x40/0x94 [ 12.211691] _opp_config_clk_single+0x38/0xa0 [ 12.211693] _set_opp+0x1b0/0x500 [ 12.211695] dev_pm_opp_set_rate+0x120/0x290 [ 12.211697] panfrost_devfreq_target+0x3c/0x50 [panfrost] [ 12.211705] devfreq_set_target+0x8c/0x2d0 [ 12.211707] devfreq_update_target+0xcc/0xf4 [ 12.211708] devfreq_monitor+0x40/0x1d0 [ 12.211710] process_one_work+0x294/0x664 [ 12.211712] worker_thread+0x7c/0x45c [ 12.211713] kthread+0x104/0x110 [ 12.211716] ret_from_fork+0x10/0x20 [ 12.211718] irq event stamp: 7102 [ 12.211719] hardirqs last enabled at (7101): [<ffffdddf904ea5a0>] finish_task_switch.isra.0+0xec/0x2f0 [ 12.211723] hardirqs last disabled at (7102): [<ffffdddf91794b74>] el1_dbg+0x24/0x90 [ 12.211726] softirqs last enabled at (6716): [<ffffdddf90410be4>] __do_softirq+0x414/0x588 [ 12.211728] softirqs last disabled at (6507): [<ffffdddf904171d8>] ____do_softirq+0x18/0x24 [ 12.211730] ---[ end trace 0000000000000000 ]--- Fixes: 262ca38f4b6e ("clk: Stop forwarding clk_rate_requests to the parent") Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com> Link: https://lore.kernel.org/r/20221011135548.318323-1-angelogioacchino.delregno@collabora.com Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2022-10-14Merge tag 'leds-6.1-rc1' of ↵Linus Torvalds1-2/+20
git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds Pull LED updates from Pavel Machek: "This is very quiet release for LEDs, pca963 got blinking support and that's pretty much it" * tag 'leds-6.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/pavel/linux-leds: leds: pca963: fix misleading indentation dt-bindings: leds: Document mmc trigger leds: pca963x: fix blink with hw acceleration
2022-10-14Merge tag 'arm64-fixes' of ↵Linus Torvalds2-3/+3
git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux Pull arm64 fixes from Catalin Marinas: - Cortex-A55 errata workaround (repeat TLBI) - AMPERE1 added to the Spectre-BHB affected list - MTE fix to avoid setting PG_mte_tagged if no tags have been touched on a page - Fixed typo in the SCTLR_EL1.SPINTMASK bit naming (the commit log has other typos) - perf: return value check in ali_drw_pmu_probe(), ALIBABA_UNCORE_DRW_PMU dependency on ACPI * tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: arm64: Add AMPERE1 to the Spectre-BHB affected list arm64: mte: Avoid setting PG_mte_tagged if no tags cleared or restored MAINTAINERS: rectify file entry in ALIBABA PMU DRIVER drivers/perf: ALIBABA_UNCORE_DRW_PMU should depend on ACPI drivers/perf: fix return value check in ali_drw_pmu_probe() arm64: errata: Add Cortex-A55 to the repeat tlbi list arm64/sysreg: Fix typo in SCTR_EL1.SPINTMASK
2022-10-14Merge tag 'mm-stable-2022-10-13' of ↵Linus Torvalds5-67/+99
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm Pull more MM updates from Andrew Morton: - fix a race which causes page refcounting errors in ZONE_DEVICE pages (Alistair Popple) - fix userfaultfd test harness instability (Peter Xu) - various other patches in MM, mainly fixes * tag 'mm-stable-2022-10-13' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (29 commits) highmem: fix kmap_to_page() for kmap_local_page() addresses mm/page_alloc: fix incorrect PGFREE and PGALLOC for high-order page mm/selftest: uffd: explain the write missing fault check mm/hugetlb: use hugetlb_pte_stable in migration race check mm/hugetlb: fix race condition of uffd missing/minor handling zram: always expose rw_page LoongArch: update local TLB if PTE entry exists mm: use update_mmu_tlb() on the second thread kasan: fix array-bounds warnings in tests hmm-tests: add test for migrate_device_range() nouveau/dmem: evict device private memory during release nouveau/dmem: refactor nouveau_dmem_fault_copy_one() mm/migrate_device.c: add migrate_device_range() mm/migrate_device.c: refactor migrate_vma and migrate_deivce_coherent_page() mm/memremap.c: take a pgmap reference on page allocation mm: free device private pages have zero refcount mm/memory.c: fix race when faulting a device private page mm/damon: use damon_sz_region() in appropriate place mm/damon: move sz_damon_region to damon_sz_region lib/test_meminit: add checks for the allocation functions ...
2022-10-14Revert "PCI: Distribute available resources for root buses, too"Bjorn Helgaas1-61/+1
This reverts commit e96e27fc6f7971380283768e9a734af16b1716ee. Jonathan reported that this commit broke this topology, where all the space available on bus 02 was assigned to the 02:00.0 bridge window, leaving none for the e1000 device at 02:00.1: pci 0000:00:04.0: bridge window [mem 0x10200000-0x103fffff] to [bus 02-04] pci 0000:02:00.0: bridge window [mem 0x10200000-0x103fffff] to [bus 03-04] pci 0000:02:00.1: BAR 0: failed to assign [mem size 0x00020000] e1000 0000:02:00.1: can't ioremap BAR 0: [??? 0x00000000 flags 0x0] Link: https://lore.kernel.org/r/20221014124553.0000696f@huawei.com Reported-by: Jonathan Cameron <Jonathan.Cameron@huawei.com> Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>