linux/drivers/gpu/drm/i915/intel_gmbus.h
Jani Nikula 3ce2ea6574 drm/i915: extract intel_gmbus.h from i915_drv.h and rename intel_i2c.c
It used to be handy that we only had a couple of headers, but over time
i915_drv.h has become unwieldy. Extract declarations to a separate
header file corresponding to the implementation module, clarifying the
modularity of the driver.

Ensure the new header is self-contained, and do so with minimal further
includes, using forward declarations as needed. Include the new header
only where needed, and sort the modified include directives while at it
and as needed.

While at it, rename intel_i2c.c to intel_gmbus.c and the functions to
intel_gmbus_*.

No functional changes.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/5834b8fbbfd4ac2e3d0159e69c87f6926066f537.1556809195.git.jani.nikula@intel.com
2019-05-03 10:06:55 +03:00

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C

/* SPDX-License-Identifier: MIT */
/*
* Copyright © 2019 Intel Corporation
*/
#ifndef __INTEL_GMBUS_H__
#define __INTEL_GMBUS_H__
#include <linux/types.h>
struct drm_i915_private;
struct i2c_adapter;
int intel_gmbus_setup(struct drm_i915_private *dev_priv);
void intel_gmbus_teardown(struct drm_i915_private *dev_priv);
bool intel_gmbus_is_valid_pin(struct drm_i915_private *dev_priv,
unsigned int pin);
int intel_gmbus_output_aksv(struct i2c_adapter *adapter);
struct i2c_adapter *
intel_gmbus_get_adapter(struct drm_i915_private *dev_priv, unsigned int pin);
void intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed);
void intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit);
bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter);
void intel_gmbus_reset(struct drm_i915_private *dev_priv);
#endif /* __INTEL_GMBUS_H__ */