/* * Cirrus Logic CS42448/CS42888 Audio CODEC DAI I2C driver * * Copyright (C) 2014 Freescale Semiconductor, Inc. * * Author: Nicolin Chen * * This file is licensed under the terms of the GNU General Public License * version 2. This program is licensed "as is" without any warranty of any * kind, whether express or implied. */ #include #include #include #include #include "cs42xx8.h" static int cs42xx8_i2c_probe(struct i2c_client *i2c, const struct i2c_device_id *id) { int ret = cs42xx8_probe(&i2c->dev, devm_regmap_init_i2c(i2c, &cs42xx8_regmap_config)); if (ret) return ret; pm_runtime_enable(&i2c->dev); pm_request_idle(&i2c->dev); return 0; } static int cs42xx8_i2c_remove(struct i2c_client *i2c) { snd_soc_unregister_codec(&i2c->dev); pm_runtime_disable(&i2c->dev); return 0; } static struct i2c_device_id cs42xx8_i2c_id[] = { {"cs42448", (kernel_ulong_t)&cs42448_data}, {"cs42888", (kernel_ulong_t)&cs42888_data}, {} }; MODULE_DEVICE_TABLE(i2c, cs42xx8_i2c_id); static struct i2c_driver cs42xx8_i2c_driver = { .driver = { .name = "cs42xx8", .pm = &cs42xx8_pm, .of_match_table = cs42xx8_of_match, }, .probe = cs42xx8_i2c_probe, .remove = cs42xx8_i2c_remove, .id_table = cs42xx8_i2c_id, }; module_i2c_driver(cs42xx8_i2c_driver); MODULE_DESCRIPTION("Cirrus Logic CS42448/CS42888 ALSA SoC Codec I2C Driver"); MODULE_AUTHOR("Freescale Semiconductor, Inc."); MODULE_LICENSE("GPL"); >
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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2017-02-03 17:10:28 +1100
committerMichael Ellerman <mpe@ellerman.id.au>2017-02-08 23:36:29 +1100
commitd7df2443cd5f67fc6ee7c05a88e4996e8177f91b (patch)
tree098a7c0ca4fceb8a65cb1f693c9d71990388933d /include/dt-bindings/memory/mt8173-larb-port.h
parenta0615a16f7d0ceb5804d295203c302d496d8ee91 (diff)
powerpc/mm: Fix spurrious segfaults on radix with autonuma
When autonuma (Automatic NUMA balancing) marks a PTE inaccessible it clears all the protection bits but leave the PTE valid. With the Radix MMU, an attempt at executing from such a PTE will take a fault with bit 35 of SRR1 set "SRR1_ISI_N_OR_G". It is thus incorrect to treat all such faults as errors. We should pass them to handle_mm_fault() for autonuma to deal with. The case of pages that are really not executable is handled by the existing test for VM_EXEC further down. That leaves us with catching the kernel attempts at executing user pages. We can catch that earlier, even before we do find_vma. It is never valid on powerpc for the kernel to take an exec fault to begin with. So fold that test with the existing test for the kernel faulting on kernel addresses to bail out early. Fixes: 1d18ad026844 ("powerpc/mm: Detect instruction fetch denied and report") Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Acked-by: Balbir Singh <bsingharora@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'include/dt-bindings/memory/mt8173-larb-port.h')