修改led为gpio

hc

2024-10-12 a5969cabbb4660eab42b6ef0412cbbd1200cf14d

 kernel/drivers/i2c/busses/i2c-designware-core.h
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@@ -9,8 +9,14 @@
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  * Copyright (C) 2009 Provigent Ltd.
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  */
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11
 
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+#include <linux/bits.h>
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+#include <linux/compiler_types.h>
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+#include <linux/completion.h>
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+#include <linux/dev_printk.h>
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+#include <linux/errno.h>
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 #include <linux/i2c.h>
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-#include <linux/pm_qos.h>
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+#include <linux/regmap.h>
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+#include <linux/types.h>
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20
 
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 #define DW_IC_DEFAULT_FUNCTIONALITY (I2C_FUNC_I2C |			\
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 					I2C_FUNC_SMBUS_BYTE |		\
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@@ -121,8 +127,6 @@
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 #define STATUS_WRITE_IN_PROGRESS	0x1
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 #define STATUS_READ_IN_PROGRESS		0x2
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-#define TIMEOUT			20 /* ms */
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-
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 /*
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  * operation modes
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  */
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@@ -171,13 +175,20 @@
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 					 DW_IC_TX_ABRT_TXDATA_NOACK | \
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 					 DW_IC_TX_ABRT_GCALL_NOACK)
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+struct clk;
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+struct device;
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+struct reset_control;
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 /**
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  * struct dw_i2c_dev - private i2c-designware data
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  * @dev: driver model device node
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+ * @map: IO registers map
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+ * @sysmap: System controller registers map
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  * @base: IO registers pointer
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+ * @ext: Extended IO registers pointer
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  * @cmd_complete: tx completion indicator
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  * @clk: input reference clock
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+ * @pclk: clock required to access the registers
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  * @slave: represent an I2C slave device
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  * @cmd_err: run time hadware error code
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  * @msgs: points to an array of messages currently being transferred
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@@ -209,14 +220,14 @@
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  * @fp_lcnt: fast plus LCNT value
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  * @hs_hcnt: high speed HCNT value
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  * @hs_lcnt: high speed LCNT value
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- * @pm_qos: pm_qos_request used while holding a hardware lock on the bus
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  * @acquire_lock: function to acquire a hardware lock on the bus
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  * @release_lock: function to release a hardware lock on the bus
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- * @pm_disabled: true if power-management should be disabled for this i2c-bus
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+ * @shared_with_punit: true if this bus is shared with the SoCs PUNIT
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  * @disable: function to disable the controller
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  * @disable_int: function to disable all interrupts
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  * @init: function to initialize the I2C hardware
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  * @mode: operation mode - DW_IC_MASTER or DW_IC_SLAVE
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+ * @suspended: set to true if the controller is suspended
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  *
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  * HCNT and LCNT parameters can be used if the platform knows more accurate
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  * values than the one computed based only on the input clock frequency.
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@@ -224,13 +235,16 @@
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  */
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 struct dw_i2c_dev {
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 	struct device		*dev;
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+	struct regmap		*map;
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+	struct regmap		*sysmap;
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 	void __iomem		*base;
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+	void __iomem		*ext;
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 	struct completion	cmd_complete;
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 	struct clk		*clk;
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+	struct clk		*pclk;
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 	struct reset_control	*rst;
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 	struct i2c_client		*slave;
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 	u32			(*get_clk_rate_khz) (struct dw_i2c_dev *dev);
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-	struct dw_pci_controller *controller;
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 	int			cmd_err;
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 	struct i2c_msg		*msgs;
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 	int			msgs_num;
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@@ -262,26 +276,26 @@
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 	u16			fp_lcnt;
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 	u16			hs_hcnt;
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 	u16			hs_lcnt;
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-	struct pm_qos_request	pm_qos;
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-	int			(*acquire_lock)(struct dw_i2c_dev *dev);
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-	void			(*release_lock)(struct dw_i2c_dev *dev);
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-	bool			pm_disabled;
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+	int			(*acquire_lock)(void);
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+	void			(*release_lock)(void);
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+	bool			shared_with_punit;
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 	void			(*disable)(struct dw_i2c_dev *dev);
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 	void			(*disable_int)(struct dw_i2c_dev *dev);
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 	int			(*init)(struct dw_i2c_dev *dev);
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+	int			(*set_sda_hold_time)(struct dw_i2c_dev *dev);
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 	int			mode;
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 	struct i2c_bus_recovery_info rinfo;
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+	bool			suspended;
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 };
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-#define ACCESS_SWAP		0x00000001
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-#define ACCESS_16BIT		0x00000002
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-#define ACCESS_INTR_MASK	0x00000004
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+#define ACCESS_INTR_MASK	0x00000001
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+#define ACCESS_NO_IRQ_SUSPEND	0x00000002
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-#define MODEL_CHERRYTRAIL	0x00000100
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+#define MODEL_MSCC_OCELOT	0x00000100
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+#define MODEL_BAIKAL_BT1	0x00000200
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+#define MODEL_MASK		0x00000f00
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297
 
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-u32 dw_readl(struct dw_i2c_dev *dev, int offset);
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-void dw_writel(struct dw_i2c_dev *dev, u32 b, int offset);
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-int i2c_dw_set_reg_access(struct dw_i2c_dev *dev);
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+int i2c_dw_init_regmap(struct dw_i2c_dev *dev);
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 u32 i2c_dw_scl_hcnt(u32 ic_clk, u32 tSYMBOL, u32 tf, int cond, int offset);
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 u32 i2c_dw_scl_lcnt(u32 ic_clk, u32 tLOW, u32 tf, int offset);
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 int i2c_dw_set_sda_hold(struct dw_i2c_dev *dev);
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@@ -291,34 +305,66 @@
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 void i2c_dw_release_lock(struct dw_i2c_dev *dev);
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 int i2c_dw_wait_bus_not_busy(struct dw_i2c_dev *dev);
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 int i2c_dw_handle_tx_abort(struct dw_i2c_dev *dev);
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+int i2c_dw_set_fifo_size(struct dw_i2c_dev *dev);
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 u32 i2c_dw_func(struct i2c_adapter *adap);
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 void i2c_dw_disable(struct dw_i2c_dev *dev);
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 void i2c_dw_disable_int(struct dw_i2c_dev *dev);
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 static inline void __i2c_dw_enable(struct dw_i2c_dev *dev)
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 {
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-	dw_writel(dev, 1, DW_IC_ENABLE);
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+	regmap_write(dev->map, DW_IC_ENABLE, 1);
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 }
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 static inline void __i2c_dw_disable_nowait(struct dw_i2c_dev *dev)
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 {
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-	dw_writel(dev, 0, DW_IC_ENABLE);
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+	regmap_write(dev->map, DW_IC_ENABLE, 0);
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 }
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 void __i2c_dw_disable(struct dw_i2c_dev *dev);
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-extern u32 i2c_dw_read_comp_param(struct dw_i2c_dev *dev);
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-extern int i2c_dw_probe(struct dw_i2c_dev *dev);
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+extern void i2c_dw_configure_master(struct dw_i2c_dev *dev);
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+extern int i2c_dw_probe_master(struct dw_i2c_dev *dev);
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+
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 #if IS_ENABLED(CONFIG_I2C_DESIGNWARE_SLAVE)
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+extern void i2c_dw_configure_slave(struct dw_i2c_dev *dev);
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 extern int i2c_dw_probe_slave(struct dw_i2c_dev *dev);
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 #else
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+static inline void i2c_dw_configure_slave(struct dw_i2c_dev *dev) { }
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 static inline int i2c_dw_probe_slave(struct dw_i2c_dev *dev) { return -EINVAL; }
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 #endif
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+static inline int i2c_dw_probe(struct dw_i2c_dev *dev)
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+{
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+	switch (dev->mode) {
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+	case DW_IC_SLAVE:
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+		return i2c_dw_probe_slave(dev);
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+	case DW_IC_MASTER:
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+		return i2c_dw_probe_master(dev);
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+	default:
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+		dev_err(dev->dev, "Wrong operation mode: %d\n", dev->mode);
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+		return -EINVAL;
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+	}
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+}
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+
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+static inline void i2c_dw_configure(struct dw_i2c_dev *dev)
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+{
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+	if (i2c_detect_slave_mode(dev->dev))
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+		i2c_dw_configure_slave(dev);
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+	else
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+		i2c_dw_configure_master(dev);
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+}
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+
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 #if IS_ENABLED(CONFIG_I2C_DESIGNWARE_BAYTRAIL)
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 extern int i2c_dw_probe_lock_support(struct dw_i2c_dev *dev);
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-extern void i2c_dw_remove_lock_support(struct dw_i2c_dev *dev);
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 #else
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 static inline int i2c_dw_probe_lock_support(struct dw_i2c_dev *dev) { return 0; }
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-static inline void i2c_dw_remove_lock_support(struct dw_i2c_dev *dev) {}
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+#endif
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+
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+int i2c_dw_validate_speed(struct dw_i2c_dev *dev);
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+void i2c_dw_adjust_bus_speed(struct dw_i2c_dev *dev);
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+
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+#if IS_ENABLED(CONFIG_ACPI)
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+int i2c_dw_acpi_configure(struct device *device);
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+#else
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+static inline int i2c_dw_acpi_configure(struct device *device) { return -ENODEV; }
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 #endif