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hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/soundwire/intel.h
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@@ -1,27 +1,56 @@
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-// SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause)
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-// Copyright(c) 2015-17 Intel Corporation.
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+/* SPDX-License-Identifier: (GPL-2.0 OR BSD-3-Clause) */
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+/* Copyright(c) 2015-17 Intel Corporation. */
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 #ifndef __SDW_INTEL_LOCAL_H
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 #define __SDW_INTEL_LOCAL_H
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 /**
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- * struct sdw_intel_res - Soundwire link resources
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+ * struct sdw_intel_link_res - Soundwire Intel link resource structure,
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+ * typically populated by the controller driver.
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+ * @pdev: platform_device
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+ * @mmio_base: mmio base of SoundWire registers
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  * @registers: Link IO registers base
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  * @shim: Audio shim pointer
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  * @alh: ALH (Audio Link Hub) pointer
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  * @irq: Interrupt line
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  * @ops: Shim callback ops
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- * @arg: Shim callback ops argument
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- *
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- * This is set as pdata for each link instance.
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+ * @dev: device implementing hw_params and free callbacks
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+ * @shim_lock: mutex to handle access to shared SHIM registers
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+ * @shim_mask: global pointer to check SHIM register initialization
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+ * @clock_stop_quirks: mask defining requested behavior on pm_suspend
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+ * @link_mask: global mask needed for power-up/down sequences
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+ * @cdns: Cadence master descriptor
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+ * @list: used to walk-through all masters exposed by the same controller
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  */
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 struct sdw_intel_link_res {
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+	struct platform_device *pdev;
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+	void __iomem *mmio_base; /* not strictly needed, useful for debug */
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 	void __iomem *registers;
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 	void __iomem *shim;
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 	void __iomem *alh;
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 	int irq;
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 	const struct sdw_intel_ops *ops;
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-	void *arg;
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+	struct device *dev;
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+	struct mutex *shim_lock; /* protect shared registers */
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+	u32 *shim_mask;
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+	u32 clock_stop_quirks;
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+	u32 link_mask;
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+	struct sdw_cdns *cdns;
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+	struct list_head list;
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 };
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+struct sdw_intel {
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+	struct sdw_cdns cdns;
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+	int instance;
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+	struct sdw_intel_link_res *link_res;
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+#ifdef CONFIG_DEBUG_FS
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+	struct dentry *debugfs;
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+#endif
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+};
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+
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+#define SDW_INTEL_QUIRK_MASK_BUS_DISABLE      BIT(1)
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+
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+int intel_master_startup(struct platform_device *pdev);
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+int intel_master_process_wakeen_event(struct platform_device *pdev);
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+
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 #endif /* __SDW_INTEL_LOCAL_H */