linux/drivers/counter, branch v6.0

counter: 104-quad-8: Fix skipped IRQ lines during events configuration

2022-09-22T12:26:37Z

IRQ trigger configuration is skipped if it has already been set before; however, the IRQ line still needs to be OR'd to irq_enabled because irq_enabled is reset for every events_configure call. This patch moves the irq_enabled OR operation update to before the irq_trigger check so that IRQ line enablement is not skipped. Fixes: c95cc0d95702 ("counter: 104-quad-8: Fix persistent enabled events bug") Cc: stable Link: https://lore.kernel.org/r/20220815122301.2750-1-william.gray@linaro.org/ Signed-off-by: William Breathitt Gray Link: https://lore.kernel.org/r/179eed11eaf225dbd908993b510df0c8f67b1230.1663844776.git.william.gray@linaro.org Signed-off-by: Greg Kroah-Hartman

counter: 104-quad-8: Implement and utilize register structures

2022-07-14T17:17:41Z

Reduce magic numbers and improve code readability by implementing and utilizing named register data structures. Link: https://lore.kernel.org/r/20220707171709.36010-1-william.gray@linaro.org/ Cc: Syed Nayyar Waris Tested-by: Fred Eckert Reviewed-by: Jonathan Cameron Signed-off-by: William Breathitt Gray Link: https://lore.kernel.org/r/285fdc7c03892251f50bdbf2c28c19998243a6a3.1657813472.git.william.gray@linaro.org Signed-off-by: Greg Kroah-Hartman

counter: 104-quad-8: Utilize iomap interface

2022-07-14T17:17:41Z

This driver doesn't need to access I/O ports directly via inb()/outb() and friends. This patch abstracts such access by calling ioport_map() to enable the use of more typical ioread8()/iowrite8() I/O memory accessor calls. Link: https://lore.kernel.org/r/861c003318dce3d2bef4061711643bb04f5ec14f.1652201921.git.william.gray@linaro.org Cc: Syed Nayyar Waris Suggested-by: David Laight Reviewed-by: Linus Walleij Signed-off-by: William Breathitt Gray Link: https://lore.kernel.org/r/e971b897cacfac4cb2eca478f5533d2875f5cadd.1657813472.git.william.gray@linaro.org Signed-off-by: Greg Kroah-Hartman

Merge tag 'char-misc-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

2022-03-28T19:27:35Z

Pull char/misc and other driver updates from Greg KH: "Here is the big set of char/misc and other small driver subsystem updates for 5.18-rc1. Included in here are merges from driver subsystems which contain: - iio driver updates and new drivers - fsi driver updates - fpga driver updates - habanalabs driver updates and support for new hardware - soundwire driver updates and new drivers - phy driver updates and new drivers - coresight driver updates - icc driver updates Individual changes include: - mei driver updates - interconnect driver updates - new PECI driver subsystem added - vmci driver updates - lots of tiny misc/char driver updates All of these have been in linux-next for a while with no reported problems" * tag 'char-misc-5.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (556 commits) firmware: google: Properly state IOMEM dependency kgdbts: fix return value of __setup handler firmware: sysfb: fix platform-device leak in error path firmware: stratix10-svc: add missing callback parameter on RSU arm64: dts: qcom: add non-secure domain property to fastrpc nodes misc: fastrpc: Add dma handle implementation misc: fastrpc: Add fdlist implementation misc: fastrpc: Add helper function to get list and page misc: fastrpc: Add support to secure memory map dt-bindings: misc: add fastrpc domain vmid property misc: fastrpc: check before loading process to the DSP misc: fastrpc: add secure domain support dt-bindings: misc: add property to support non-secure DSP misc: fastrpc: Add support to get DSP capabilities misc: fastrpc: add support for FASTRPC_IOCTL_MEM_MAP/UNMAP misc: fastrpc: separate fastrpc device from channel context dt-bindings: nvmem: brcm,nvram: add basic NVMEM cells dt-bindings: nvmem: make "reg" property optional nvmem: brcm_nvram: parse NVRAM content into NVMEM cells nvmem: dt-bindings: Fix the error of dt-bindings check ...

counter: add defaults to switch-statements

2022-03-18T13:04:30Z

Clang static analysis reports this representative problem counter-chrdev.c:482:3: warning: Undefined or garbage value returned to caller return ret; ^~~~~~~~~~ counter_get_data() has a multilevel switches, some without defaults, so ret is sometimes not set. Add returning -EINVAL similar to other defaults. Link: https://lore.kernel.org/r/20220227161746.82776-1-trix@redhat.com Reviewed-by: Jonathan Cameron Acked-by: Syed Nayyar Waris Signed-off-by: Tom Rix Signed-off-by: William Breathitt Gray Link: https://lore.kernel.org/r/b98d1a3ed4b0b324b261b23defd1bdddddba4d44.1647373009.git.vilhelm.gray@gmail.com Signed-off-by: Greg Kroah-Hartman

counter: interrupt-cnt: add counter_push_event()

2022-03-18T13:04:30Z

Add counter_push_event() to notify user space about new pulses Link: https://lore.kernel.org/r/20220203135727.2374052-3-o.rempel@pengutronix.de Signed-off-by: Oleksij Rempel Signed-off-by: William Breathitt Gray Link: https://lore.kernel.org/r/9da3460113b5092e8658e12f23578567aab7cc5f.1647373009.git.vilhelm.gray@gmail.com Signed-off-by: Greg Kroah-Hartman

counter: Set counter device name

2022-03-18T13:04:30Z

Naming the counter device provides a convenient way to identify it in devres_log events and similar situations. This patch names the counter device by combining the prefix "counter" with the counter device's unique ID. Link: https://lore.kernel.org/r/20220204084551.16397-1-vilhelm.gray@gmail.com Acked-by: Uwe Kleine-König Signed-off-by: William Breathitt Gray Link: https://lore.kernel.org/r/87cc8eb4c84f49f89290577dc9231b2e4d7d3e8c.1647373009.git.vilhelm.gray@gmail.com Signed-off-by: Greg Kroah-Hartman

counter: 104-quad-8: Add COMPILE_TEST depends

2022-03-18T13:04:30Z

104_QUAD_8 depends on X86, but compiles fine on ARCH=arm. This patch adds support for COMPILE_TEST which is useful for compile testing code changes to the driver and Counter subsystem. Link: https://lore.kernel.org/r/20220105094137.259111-1-vilhelm.gray@gmail.com Cc: Syed Nayyar Waris Suggested-by: Uwe Kleine-König Acked-by: Uwe Kleine-König Acked-by: Syed Nayyar Waris Signed-off-by: William Breathitt Gray Link: https://lore.kernel.org/r/3917721e792d362ee108b2f12cd2223675449d05.1647373009.git.vilhelm.gray@gmail.com Signed-off-by: Greg Kroah-Hartman

counter: Stop using dev_get_drvdata() to get the counter device

2022-03-15T18:24:13Z

dev_get_drvdata() returns NULL since commit b56346ddbd82 ("counter: Use container_of instead of drvdata to track counter_device") which wrongly claimed there were no users of drvdata. Convert to container_of() to fix a null pointer dereference. Reported-by: Oleksij Rempel Fixes: b56346ddbd82 ("counter: Use container_of instead of drvdata to track counter_device") Signed-off-by: Uwe Kleine-König Tested-by: Jarkko Nikula Link: https://lore.kernel.org/all/20220204082556.370348-1-u.kleine-koenig@pengutronix.de/ Signed-off-by: William Breathitt Gray Link: https://lore.kernel.org/r/4a14311a3b935b62b33e665a97ecaaf2f078228a.1646957732.git.vilhelm.gray@gmail.com Signed-off-by: Greg Kroah-Hartman

counter: fix an IS_ERR() vs NULL bug

2022-01-26T18:40:33Z

There are 8 callers for devm_counter_alloc() and they all check for NULL instead of error pointers. I think NULL is the better thing to return for allocation functions so update counter_alloc() and devm_counter_alloc() to return NULL instead of error pointers. Fixes: c18e2760308e ("counter: Provide alternative counter registration functions") Acked-by: Uwe Kleine-König Acked-by: William Breathitt Gray Signed-off-by: Dan Carpenter Link: https://lore.kernel.org/r/20220111173243.GA2192@kili Signed-off-by: Greg Kroah-Hartman