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0ea07b6951
Wire up suspend/resume handles for I2C controller to match its power state with SGUnit. Signed-off-by: Raag Jadav <raag.jadav@intel.com> Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com> Reviewed-by: Karthik Poosa <karthik.poosa@intel.com> Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com> Link: https://lore.kernel.org/r/20250701122252.2590230-5-heikki.krogerus@linux.intel.com Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
63 lines
1.4 KiB
C
63 lines
1.4 KiB
C
/* SPDX-License-Identifier: MIT */
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#ifndef _XE_I2C_H_
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#define _XE_I2C_H_
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#include <linux/bits.h>
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#include <linux/notifier.h>
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#include <linux/types.h>
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#include <linux/workqueue.h>
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struct device;
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struct fwnode_handle;
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struct i2c_adapter;
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struct i2c_client;
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struct irq_domain;
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struct platform_device;
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struct xe_device;
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struct xe_mmio;
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#define XE_I2C_MAX_CLIENTS 3
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#define XE_I2C_EP_COOKIE_DEVICE 0xde
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/* Endpoint Capabilities */
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#define XE_I2C_EP_CAP_IRQ BIT(0)
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struct xe_i2c_endpoint {
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u8 cookie;
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u8 capabilities;
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u16 addr[XE_I2C_MAX_CLIENTS];
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};
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struct xe_i2c {
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struct fwnode_handle *adapter_node;
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struct platform_device *pdev;
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struct i2c_adapter *adapter;
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struct i2c_client *client[XE_I2C_MAX_CLIENTS];
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struct notifier_block bus_notifier;
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struct work_struct work;
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struct irq_domain *irqdomain;
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int adapter_irq;
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struct xe_i2c_endpoint ep;
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struct device *drm_dev;
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struct xe_mmio *mmio;
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};
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#if IS_ENABLED(CONFIG_I2C)
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int xe_i2c_probe(struct xe_device *xe);
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void xe_i2c_irq_handler(struct xe_device *xe, u32 master_ctl);
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void xe_i2c_pm_suspend(struct xe_device *xe);
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void xe_i2c_pm_resume(struct xe_device *xe, bool d3cold);
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#else
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static inline int xe_i2c_probe(struct xe_device *xe) { return 0; }
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static inline void xe_i2c_irq_handler(struct xe_device *xe, u32 master_ctl) { }
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static inline void xe_i2c_pm_suspend(struct xe_device *xe) { }
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static inline void xe_i2c_pm_resume(struct xe_device *xe, bool d3cold) { }
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#endif
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#endif
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