diff options
author | Tony Lindgren <tony@atomide.com> | 2015-11-12 20:58:21 +0300 |
---|---|---|
committer | Tony Lindgren <tony@atomide.com> | 2015-11-12 20:58:21 +0300 |
commit | ff6d03b9d9cad592320ce21e9b22befe56ebe6b6 (patch) | |
tree | da02d83177a107f92c446dbf7a93bdc1bac96cdf /drivers/hwtracing/intel_th/pci.c | |
parent | 7ef71b70e18a82bb363905f72672317d0e1e8810 (diff) | |
parent | 469689a45f78505d864210b3a5d75404eb7f24ee (diff) | |
download | linux-ff6d03b9d9cad592320ce21e9b22befe56ebe6b6.tar.xz |
Merge branch 'x15-audio-fixes' into omap-for-v4.4/fixes
Diffstat (limited to 'drivers/hwtracing/intel_th/pci.c')
-rw-r--r-- | drivers/hwtracing/intel_th/pci.c | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/drivers/hwtracing/intel_th/pci.c b/drivers/hwtracing/intel_th/pci.c new file mode 100644 index 000000000000..641e87936064 --- /dev/null +++ b/drivers/hwtracing/intel_th/pci.c @@ -0,0 +1,86 @@ +/* + * Intel(R) Trace Hub pci driver + * + * Copyright (C) 2014-2015 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + */ + +#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt + +#include <linux/types.h> +#include <linux/module.h> +#include <linux/device.h> +#include <linux/sysfs.h> +#include <linux/pci.h> + +#include "intel_th.h" + +#define DRIVER_NAME "intel_th_pci" + +#define BAR_MASK (BIT(TH_MMIO_CONFIG) | BIT(TH_MMIO_SW)) + +static int intel_th_pci_probe(struct pci_dev *pdev, + const struct pci_device_id *id) +{ + struct intel_th *th; + int err; + + err = pcim_enable_device(pdev); + if (err) + return err; + + err = pcim_iomap_regions_request_all(pdev, BAR_MASK, DRIVER_NAME); + if (err) + return err; + + th = intel_th_alloc(&pdev->dev, pdev->resource, + DEVICE_COUNT_RESOURCE, pdev->irq); + if (IS_ERR(th)) + return PTR_ERR(th); + + pci_set_drvdata(pdev, th); + + return 0; +} + +static void intel_th_pci_remove(struct pci_dev *pdev) +{ + struct intel_th *th = pci_get_drvdata(pdev); + + intel_th_free(th); +} + +static const struct pci_device_id intel_th_pci_id_table[] = { + { + PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x9d26), + .driver_data = (kernel_ulong_t)0, + }, + { + PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0xa126), + .driver_data = (kernel_ulong_t)0, + }, + { 0 }, +}; + +MODULE_DEVICE_TABLE(pci, intel_th_pci_id_table); + +static struct pci_driver intel_th_pci_driver = { + .name = DRIVER_NAME, + .id_table = intel_th_pci_id_table, + .probe = intel_th_pci_probe, + .remove = intel_th_pci_remove, +}; + +module_pci_driver(intel_th_pci_driver); + +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("Intel(R) Trace Hub PCI controller driver"); +MODULE_AUTHOR("Alexander Shishkin <alexander.shishkin@intel.com>"); |