diff options
author | 2016-04-11 10:41:07 +0300 | |
---|---|---|
committer | 2016-04-13 08:17:18 +0300 | |
commit | e09b41010ba33a20a87472ee821fa407a5b8da36 (patch) | |
tree | d10dc367189862e7ca5c592f033dc3726e1df4e3 /kernel/drivers/mfd/intel-lpss-pci.c | |
parent | f93b97fd65072de626c074dbe099a1fff05ce060 (diff) |
These changes are the raw update to linux-4.4.6-rt14. Kernel sources
are taken from kernel.org, and rt patch from the rt wiki download page.
During the rebasing, the following patch collided:
Force tick interrupt and get rid of softirq magic(I70131fb85).
Collisions have been removed because its logic was found on the
source already.
Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>
Diffstat (limited to 'kernel/drivers/mfd/intel-lpss-pci.c')
-rw-r--r-- | kernel/drivers/mfd/intel-lpss-pci.c | 158 |
1 files changed, 158 insertions, 0 deletions
diff --git a/kernel/drivers/mfd/intel-lpss-pci.c b/kernel/drivers/mfd/intel-lpss-pci.c new file mode 100644 index 000000000..5bfdfccbb --- /dev/null +++ b/kernel/drivers/mfd/intel-lpss-pci.c @@ -0,0 +1,158 @@ +/* + * Intel LPSS PCI support. + * + * Copyright (C) 2015, Intel Corporation + * + * Authors: Andy Shevchenko <andriy.shevchenko@linux.intel.com> + * Mika Westerberg <mika.westerberg@linux.intel.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/ioport.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/pci.h> +#include <linux/pm.h> +#include <linux/pm_runtime.h> + +#include "intel-lpss.h" + +static int intel_lpss_pci_probe(struct pci_dev *pdev, + const struct pci_device_id *id) +{ + struct intel_lpss_platform_info *info; + int ret; + + ret = pcim_enable_device(pdev); + if (ret) + return ret; + + info = devm_kmemdup(&pdev->dev, (void *)id->driver_data, sizeof(*info), + GFP_KERNEL); + if (!info) + return -ENOMEM; + + info->mem = &pdev->resource[0]; + info->irq = pdev->irq; + + /* Probably it is enough to set this for iDMA capable devices only */ + pci_set_master(pdev); + + ret = intel_lpss_probe(&pdev->dev, info); + if (ret) + return ret; + + pm_runtime_put(&pdev->dev); + pm_runtime_allow(&pdev->dev); + + return 0; +} + +static void intel_lpss_pci_remove(struct pci_dev *pdev) +{ + pm_runtime_forbid(&pdev->dev); + pm_runtime_get_sync(&pdev->dev); + + intel_lpss_remove(&pdev->dev); +} + +static INTEL_LPSS_PM_OPS(intel_lpss_pci_pm_ops); + +static const struct intel_lpss_platform_info spt_info = { + .clk_rate = 120000000, +}; + +static const struct intel_lpss_platform_info spt_uart_info = { + .clk_rate = 120000000, + .clk_con_id = "baudclk", +}; + +static const struct intel_lpss_platform_info bxt_info = { + .clk_rate = 100000000, +}; + +static const struct intel_lpss_platform_info bxt_uart_info = { + .clk_rate = 100000000, + .clk_con_id = "baudclk", +}; + +static const struct intel_lpss_platform_info bxt_i2c_info = { + .clk_rate = 133000000, +}; + +static const struct pci_device_id intel_lpss_pci_ids[] = { + /* BXT */ + { PCI_VDEVICE(INTEL, 0x0aac), (kernel_ulong_t)&bxt_i2c_info }, + { PCI_VDEVICE(INTEL, 0x0aae), (kernel_ulong_t)&bxt_i2c_info }, + { PCI_VDEVICE(INTEL, 0x0ab0), (kernel_ulong_t)&bxt_i2c_info }, + { PCI_VDEVICE(INTEL, 0x0ab2), (kernel_ulong_t)&bxt_i2c_info }, + { PCI_VDEVICE(INTEL, 0x0ab4), (kernel_ulong_t)&bxt_i2c_info }, + { PCI_VDEVICE(INTEL, 0x0ab6), (kernel_ulong_t)&bxt_i2c_info }, + { PCI_VDEVICE(INTEL, 0x0ab8), (kernel_ulong_t)&bxt_i2c_info }, + { PCI_VDEVICE(INTEL, 0x0aba), (kernel_ulong_t)&bxt_i2c_info }, + { PCI_VDEVICE(INTEL, 0x0abc), (kernel_ulong_t)&bxt_uart_info }, + { PCI_VDEVICE(INTEL, 0x0abe), (kernel_ulong_t)&bxt_uart_info }, + { PCI_VDEVICE(INTEL, 0x0ac0), (kernel_ulong_t)&bxt_uart_info }, + { PCI_VDEVICE(INTEL, 0x0ac2), (kernel_ulong_t)&bxt_info }, + { PCI_VDEVICE(INTEL, 0x0ac4), (kernel_ulong_t)&bxt_info }, + { PCI_VDEVICE(INTEL, 0x0ac6), (kernel_ulong_t)&bxt_info }, + { PCI_VDEVICE(INTEL, 0x0aee), (kernel_ulong_t)&bxt_uart_info }, + /* APL */ + { PCI_VDEVICE(INTEL, 0x5aac), (kernel_ulong_t)&bxt_i2c_info }, + { PCI_VDEVICE(INTEL, 0x5aae), (kernel_ulong_t)&bxt_i2c_info }, + { PCI_VDEVICE(INTEL, 0x5ab0), (kernel_ulong_t)&bxt_i2c_info }, + { PCI_VDEVICE(INTEL, 0x5ab2), (kernel_ulong_t)&bxt_i2c_info }, + { PCI_VDEVICE(INTEL, 0x5ab4), (kernel_ulong_t)&bxt_i2c_info }, + { PCI_VDEVICE(INTEL, 0x5ab6), (kernel_ulong_t)&bxt_i2c_info }, + { PCI_VDEVICE(INTEL, 0x5ab8), (kernel_ulong_t)&bxt_i2c_info }, + { PCI_VDEVICE(INTEL, 0x5aba), (kernel_ulong_t)&bxt_i2c_info }, + { PCI_VDEVICE(INTEL, 0x5abc), (kernel_ulong_t)&bxt_uart_info }, + { PCI_VDEVICE(INTEL, 0x5abe), (kernel_ulong_t)&bxt_uart_info }, + { PCI_VDEVICE(INTEL, 0x5ac0), (kernel_ulong_t)&bxt_uart_info }, + { PCI_VDEVICE(INTEL, 0x5ac2), (kernel_ulong_t)&bxt_info }, + { PCI_VDEVICE(INTEL, 0x5ac4), (kernel_ulong_t)&bxt_info }, + { PCI_VDEVICE(INTEL, 0x5ac6), (kernel_ulong_t)&bxt_info }, + { PCI_VDEVICE(INTEL, 0x5aee), (kernel_ulong_t)&bxt_uart_info }, + /* SPT-LP */ + { PCI_VDEVICE(INTEL, 0x9d27), (kernel_ulong_t)&spt_uart_info }, + { PCI_VDEVICE(INTEL, 0x9d28), (kernel_ulong_t)&spt_uart_info }, + { PCI_VDEVICE(INTEL, 0x9d29), (kernel_ulong_t)&spt_info }, + { PCI_VDEVICE(INTEL, 0x9d2a), (kernel_ulong_t)&spt_info }, + { PCI_VDEVICE(INTEL, 0x9d60), (kernel_ulong_t)&spt_info }, + { PCI_VDEVICE(INTEL, 0x9d61), (kernel_ulong_t)&spt_info }, + { PCI_VDEVICE(INTEL, 0x9d62), (kernel_ulong_t)&spt_info }, + { PCI_VDEVICE(INTEL, 0x9d63), (kernel_ulong_t)&spt_info }, + { PCI_VDEVICE(INTEL, 0x9d64), (kernel_ulong_t)&spt_info }, + { PCI_VDEVICE(INTEL, 0x9d65), (kernel_ulong_t)&spt_info }, + { PCI_VDEVICE(INTEL, 0x9d66), (kernel_ulong_t)&spt_uart_info }, + /* SPT-H */ + { PCI_VDEVICE(INTEL, 0xa127), (kernel_ulong_t)&spt_uart_info }, + { PCI_VDEVICE(INTEL, 0xa128), (kernel_ulong_t)&spt_uart_info }, + { PCI_VDEVICE(INTEL, 0xa129), (kernel_ulong_t)&spt_info }, + { PCI_VDEVICE(INTEL, 0xa12a), (kernel_ulong_t)&spt_info }, + { PCI_VDEVICE(INTEL, 0xa160), (kernel_ulong_t)&spt_info }, + { PCI_VDEVICE(INTEL, 0xa161), (kernel_ulong_t)&spt_info }, + { PCI_VDEVICE(INTEL, 0xa166), (kernel_ulong_t)&spt_uart_info }, + { } +}; +MODULE_DEVICE_TABLE(pci, intel_lpss_pci_ids); + +static struct pci_driver intel_lpss_pci_driver = { + .name = "intel-lpss", + .id_table = intel_lpss_pci_ids, + .probe = intel_lpss_pci_probe, + .remove = intel_lpss_pci_remove, + .driver = { + .pm = &intel_lpss_pci_pm_ops, + }, +}; + +module_pci_driver(intel_lpss_pci_driver); + +MODULE_AUTHOR("Andy Shevchenko <andriy.shevchenko@linux.intel.com>"); +MODULE_AUTHOR("Mika Westerberg <mika.westerberg@linux.intel.com>"); +MODULE_DESCRIPTION("Intel LPSS PCI driver"); +MODULE_LICENSE("GPL v2"); |