// SPDX-License-Identifier: GPL-2.0-only /* * Intel Sunrisepoint LPSS core support. * * Copyright (C) 2015, Intel Corporation * * Authors: Andy Shevchenko <[email protected]> * Mika Westerberg <[email protected]> * Heikki Krogerus <[email protected]> * Jarkko Nikula <[email protected]> */ #include <linux/array_size.h> #include <linux/bits.h> #include <linux/clkdev.h> #include <linux/clk.h> #include <linux/clk-provider.h> #include <linux/debugfs.h> #include <linux/device.h> #include <linux/err.h> #include <linux/gfp_types.h> #include <linux/idr.h> #include <linux/io.h> #include <linux/ioport.h> #include <linux/mfd/core.h> #include <linux/module.h> #include <linux/pm.h> #include <linux/pm_qos.h> #include <linux/pm_runtime.h> #include <linux/sprintf.h> #include <linux/types.h> #include <linux/io-64-nonatomic-lo-hi.h> #include <linux/dma/idma64.h> #include "intel-lpss.h" struct dentry; #define LPSS_DEV_OFFSET … #define LPSS_DEV_SIZE … #define LPSS_PRIV_OFFSET … #define LPSS_PRIV_SIZE … #define LPSS_PRIV_REG_COUNT … #define LPSS_IDMA64_OFFSET … #define LPSS_IDMA64_SIZE … /* Offsets from lpss->priv */ #define LPSS_PRIV_RESETS … #define LPSS_PRIV_RESETS_IDMA … #define LPSS_PRIV_RESETS_FUNC … #define LPSS_PRIV_ACTIVELTR … #define LPSS_PRIV_IDLELTR … #define LPSS_PRIV_LTR_REQ … #define LPSS_PRIV_LTR_SCALE_MASK … #define LPSS_PRIV_LTR_SCALE_1US … #define LPSS_PRIV_LTR_SCALE_32US … #define LPSS_PRIV_LTR_VALUE_MASK … #define LPSS_PRIV_SSP_REG … #define LPSS_PRIV_SSP_REG_DIS_DMA_FIN … #define LPSS_PRIV_REMAP_ADDR … #define LPSS_PRIV_CAPS … #define LPSS_PRIV_CAPS_NO_IDMA … #define LPSS_PRIV_CAPS_TYPE_MASK … #define LPSS_PRIV_CAPS_TYPE_SHIFT … /* This matches the type field in CAPS register */ enum intel_lpss_dev_type { … }; struct intel_lpss { … }; static const struct resource intel_lpss_dev_resources[] = …; static const struct resource intel_lpss_idma64_resources[] = …; /* * Cells needs to be ordered so that the iDMA is created first. This is * because we need to be sure the DMA is available when the host controller * driver is probed. */ static const struct mfd_cell intel_lpss_idma64_cell = …; static const struct mfd_cell intel_lpss_i2c_cell = …; static const struct mfd_cell intel_lpss_uart_cell = …; static const struct mfd_cell intel_lpss_spi_cell = …; static DEFINE_IDA(intel_lpss_devid_ida); static struct dentry *intel_lpss_debugfs; static void intel_lpss_cache_ltr(struct intel_lpss *lpss) { … } static int intel_lpss_debugfs_add(struct intel_lpss *lpss) { … } static void intel_lpss_debugfs_remove(struct intel_lpss *lpss) { … } static void intel_lpss_ltr_set(struct device *dev, s32 val) { … } static void intel_lpss_ltr_expose(struct intel_lpss *lpss) { … } static void intel_lpss_ltr_hide(struct intel_lpss *lpss) { … } static int intel_lpss_assign_devs(struct intel_lpss *lpss) { … } static bool intel_lpss_has_idma(const struct intel_lpss *lpss) { … } static void intel_lpss_set_remap_addr(const struct intel_lpss *lpss) { … } static void intel_lpss_deassert_reset(const struct intel_lpss *lpss) { … } static void intel_lpss_init_dev(const struct intel_lpss *lpss) { … } static void intel_lpss_unregister_clock_tree(struct clk *clk) { … } static int intel_lpss_register_clock_divider(struct intel_lpss *lpss, const char *devname, struct clk **clk) { … } static int intel_lpss_register_clock(struct intel_lpss *lpss) { … } static void intel_lpss_unregister_clock(struct intel_lpss *lpss) { … } int intel_lpss_probe(struct device *dev, const struct intel_lpss_platform_info *info) { … } EXPORT_SYMBOL_NS_GPL(…); void intel_lpss_remove(struct device *dev) { … } EXPORT_SYMBOL_NS_GPL(…); static int resume_lpss_device(struct device *dev, void *data) { … } static int intel_lpss_prepare(struct device *dev) { … } static int intel_lpss_suspend(struct device *dev) { … } static int intel_lpss_resume(struct device *dev) { … } EXPORT_NS_GPL_DEV_PM_OPS(intel_lpss_pm_ops, INTEL_LPSS) = …; static int __init intel_lpss_init(void) { … } module_init(…) …; static void __exit intel_lpss_exit(void) { … } module_exit(intel_lpss_exit); MODULE_AUTHOR(…) …; MODULE_AUTHOR(…) …; MODULE_AUTHOR(…) …; MODULE_AUTHOR(…) …; MODULE_DESCRIPTION(…) …; MODULE_LICENSE(…) …; /* * Ensure the DMA driver is loaded before the host controller device appears, * so that the host controller driver can request its DMA channels as early * as possible. * * If the DMA module is not there that's OK as well. */ MODULE_SOFTDEP(…) …;
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