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path: root/drivers/hid/intel-ish-hid/ipc
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* HID: intel-ish-hid: request_irq failureSrinivas Pandruvada2016-11-05
| | | | | | | | | | | | | | On some platforms ISH interrupt is shared, which causes request_irq to fail. This requires IRQF_SHARED irq flag. But IRQF_NO_SUSPEND and IRQF_SHARED should not be used together, so removed IRQF_NO_SUSPEND flag. Anyway this driver doesn't require IRQF_NO_SUSPEND, as this interrupt is not required during "noirq" phases of suspending and resuming devices as well as during the time when nonboot CPUs are taken offline and brought back online. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* HID: intel-ish-hid: Fix driver reinit failureEven Xu2016-11-05
| | | | | | | | | | | | | When built as a module, modprobe followed by rmmod can fail because DMA was still active. So to fix this, DMA needs to be disabled during module exit. This change disables DMA during modules exit and change the ISH PCI device status to D3. Signed-off-by: Even Xu <even.xu@intel.com> Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* HID: intel-ish-hid: Move DMA disable code to new functionEven Xu2016-11-05
| | | | | | | | | Add a new function ish_disable_dma() and move DMA disable operations here, so that this functionality can be reused. Signed-off-by: Even Xu <even.xu@intel.com> Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* HID: intel-ish-hid: consolidate ish wake up operationEven Xu2016-11-05
| | | | | | | | | | Same operations are done in ish_hw_start() and _ish_hw_reset() to wakeup ISH device. Consolidate them by introducing a new function ish_wakeup() and move the code there. Signed-off-by: Even Xu <even.xu@intel.com> Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* HID: intel-ish-hid: Fix !CONFIG_PM build warningBorislav Petkov2016-11-03
| | | | | | | | | | | | | | | | | | | | | Fix drivers/hid/intel-ish-hid/ipc/pci-ish.c:247:12: warning: ‘ish_suspend’ defined but not used [-Wunused-function] static int ish_suspend(struct device *device) ^ drivers/hid/intel-ish-hid/ipc/pci-ish.c:282:12: warning: ‘ish_resume’ defined but not used [-Wunused-function] static int ish_resume(struct device *device) ^ by sticking them in the CONFIG_PM range too. Signed-off-by: Borislav Petkov <bp@suse.de> Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Cc: Jiri Kosina <jikos@kernel.org> Cc: Benjamin Tissoires <benjamin.tissoires@redhat.com> Cc: Wei Yongjun <weiyongjun1@huawei.com> Cc: linux-input@vger.kernel.org Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* HID: intel-ish-hid: use module_pci_driver to simplify the codeWei Yongjun2016-08-29
| | | | | | | | | Use the module_pci_driver() macro to make the code simpler by eliminating module_init and module_exit calls. Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* HID: intel-ish-hid: use list_move_tail instead of list_del/list_add_tailWei Yongjun2016-08-29
| | | | | | | | Using list_move_tail() instead of list_del() + list_add_tail(). Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com> Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>
* HID: intel-ish-hid: ipc layerSrinivas Pandruvada2016-08-17
This layer is responsible for - Enumerating over PCI bus - Inform FW about host readiness - Provide HW interface to transport layer for control and messages - Interrupt handling and routing Original-author: Daniel Drubin <daniel.drubin@intel.com> Reviewed-and-tested-by: Ooi, Joyce <joyce.ooi@intel.com> Tested-by: Grant Likely <grant.likely@secretlab.ca> Tested-by: Rann Bar-On <rb6@duke.edu> Tested-by: Atri Bhattacharya <badshah400@aim.com> Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Jiri Kosina <jkosina@suse.cz>