linux/drivers/i2c, branch v5.17

i2c: brcmstb: fix support for DSL and CM variants

2022-02-18T09:37:33Z

DSL and CM (Cable Modem) support 8 B max transfer size and have a custom DT binding for that reason. This driver was checking for a wrong "compatible" however which resulted in an incorrect setup. Fixes: e2e5a2c61837 ("i2c: brcmstb: Adding support for CM and DSL SoCs") Signed-off-by: Rafał Miłecki Acked-by: Florian Fainelli Signed-off-by: Wolfram Sang

i2c: qup: allow COMPILE_TEST

2022-02-15T09:13:52Z

Driver builds fine with COMPILE_TEST. Enable it for wider test coverage and easier maintenance. Signed-off-by: Wolfram Sang

i2c: imx: allow COMPILE_TEST

2022-02-15T09:13:49Z

Driver builds fine with COMPILE_TEST. Enable it for wider test coverage and easier maintenance. Signed-off-by: Wolfram Sang Acked-by: Oleksij Rempel

i2c: cadence: allow COMPILE_TEST

2022-02-15T09:13:44Z

Driver builds fine with COMPILE_TEST. Enable it for wider test coverage and easier maintenance. Signed-off-by: Wolfram Sang Acked-by: Michal Simek

i2c: qcom-cci: don't put a device tree node before i2c_add_adapter()

2022-02-11T17:43:08Z

There is a minor chance for a race, if a pointer to an i2c-bus subnode is stored and then reused after releasing its reference, and it would be sufficient to get one more reference under a loop over children subnodes. Fixes: e517526195de ("i2c: Add Qualcomm CCI I2C driver") Signed-off-by: Vladimir Zapolskiy Reviewed-by: Robert Foss Reviewed-by: Bjorn Andersson Signed-off-by: Wolfram Sang

i2c: qcom-cci: don't delete an unregistered adapter

2022-02-11T17:42:33Z

If i2c_add_adapter() fails to add an I2C adapter found on QCOM CCI controller, on error path i2c_del_adapter() is still called. Fortunately there is a sanity check in the I2C core, so the only visible implication is a printed debug level message: i2c-core: attempting to delete unregistered adapter [Qualcomm-CCI] Nevertheless it would be reasonable to correct the probe error path. Fixes: e517526195de ("i2c: Add Qualcomm CCI I2C driver") Signed-off-by: Vladimir Zapolskiy Reviewed-by: Robert Foss Reviewed-by: Bjorn Andersson Signed-off-by: Wolfram Sang

i2c: bcm2835: Avoid clock stretching timeouts

2022-02-07T15:09:48Z

The CLKT register contains at poweron 0x40, which at our typical 100kHz bus rate means .64ms. But there is no specified limit to how long devices should be able to stretch the clocks, so just disable the timeout. We still have a timeout wrapping the entire transfer. Signed-off-by: Eric Anholt Signed-off-by: Stefan Wahren BugLink: https://github.com/raspberrypi/linux/issues/3064 Signed-off-by: Wolfram Sang

Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

2022-01-18T08:05:48Z

Pull virtio updates from Michael Tsirkin: "virtio,vdpa,qemu_fw_cfg: features, cleanups, and fixes. - partial support for < MAX_ORDER - 1 granularity for virtio-mem - driver_override for vdpa - sysfs ABI documentation for vdpa - multiqueue config support for mlx5 vdpa - and misc fixes, cleanups" * tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (42 commits) vdpa/mlx5: Fix tracking of current number of VQs vdpa/mlx5: Fix is_index_valid() to refer to features vdpa: Protect vdpa reset with cf_mutex vdpa: Avoid taking cf_mutex lock on get status vdpa/vdpa_sim_net: Report max device capabilities vdpa: Use BIT_ULL for bit operations vdpa/vdpa_sim: Configure max supported virtqueues vdpa/mlx5: Report max device capabilities vdpa: Support reporting max device capabilities vdpa/mlx5: Restore cur_num_vqs in case of failure in change_num_qps() vdpa: Add support for returning device configuration information vdpa/mlx5: Support configuring max data virtqueue vdpa/mlx5: Fix config_attr_mask assignment vdpa: Allow to configure max data virtqueues vdpa: Read device configuration only if FEATURES_OK vdpa: Sync calls set/get config/status with cf_mutex vdpa/mlx5: Distribute RX virtqueues in RQT object vdpa: Provide interface to read driver features vdpa: clean up get_config_size ret value handling virtio_ring: mark ring unused on error ...

virtio: wrap config->reset calls

2022-01-14T23:50:52Z

This will enable cleanups down the road. The idea is to disable cbs, then add "flush_queued_cbs" callback as a parameter, this way drivers can flush any work queued after callbacks have been disabled. Signed-off-by: Michael S. Tsirkin Link: https://lore.kernel.org/r/20211013105226.20225-1-mst@redhat.com Signed-off-by: Michael S. Tsirkin

Merge branch 'i2c/for-mergewindow' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux

2022-01-14T15:19:38Z

Pull i2c updates from Wolfram Sang: "Mostly driver updates and refactorization. The removal of the XLR driver and the i801 refactoring stand out a little. In the core, we enabled async suspend/resume for I2C controllers and their clients. No issues were reported during the test phase in -next. We will see how this goes for mainline" * 'i2c/for-mergewindow' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux: (54 commits) i2c: sh_mobile: remove unneeded semicolon i2c: riic: Use platform_get_irq() to get the interrupt i2c: sh_mobile: Use platform_get_irq_optional() to get the interrupt i2c: bcm2835: Use platform_get_irq() to get the interrupt i2c: aspeed: Remove unused includes dt-bindings: i2c: aspeed: Drop stray '#interrupt-cells' i2c: sh_mobile: update to new DMAENGINE API when terminating i2c: rcar: update to new DMAENGINE API when terminating i2c: exynos5: Fix getting the optional clock i2c: designware-pci: Convert to use dev_err_probe() i2c: designware-pci: use __maybe_unused for PM functions i2c: designware-pci: Group MODULE_*() macros i2c: designware-pci: Add a note about struct dw_scl_sda_cfg usage i2c: designware-pci: Fix to change data types of hcnt and lcnt parameters i2c: designware: Do not complete i2c read without RX_FULL interrupt eeprom: at24: Add support for 24c1025 EEPROM dt-bindings: at24: add at24c1025 i2c: tegra: use i2c_timings for bus clock freq dt-bindings: at24: Rework special case compatible handling i2c: i801: Don't clear status flags twice in interrupt mode ...