intel_gmbus.h (1500B)
1/* SPDX-License-Identifier: MIT */ 2/* 3 * Copyright © 2019 Intel Corporation 4 */ 5 6#ifndef __INTEL_GMBUS_H__ 7#define __INTEL_GMBUS_H__ 8 9#include <linux/types.h> 10 11struct drm_i915_private; 12struct i2c_adapter; 13 14#define GMBUS_PIN_DISABLED 0 15#define GMBUS_PIN_SSC 1 16#define GMBUS_PIN_VGADDC 2 17#define GMBUS_PIN_PANEL 3 18#define GMBUS_PIN_DPD_CHV 3 /* HDMID_CHV */ 19#define GMBUS_PIN_DPC 4 /* HDMIC */ 20#define GMBUS_PIN_DPB 5 /* SDVO, HDMIB */ 21#define GMBUS_PIN_DPD 6 /* HDMID */ 22#define GMBUS_PIN_RESERVED 7 /* 7 reserved */ 23#define GMBUS_PIN_1_BXT 1 /* BXT+ (atom) and CNP+ (big core) */ 24#define GMBUS_PIN_2_BXT 2 25#define GMBUS_PIN_3_BXT 3 26#define GMBUS_PIN_4_CNP 4 27#define GMBUS_PIN_9_TC1_ICP 9 28#define GMBUS_PIN_10_TC2_ICP 10 29#define GMBUS_PIN_11_TC3_ICP 11 30#define GMBUS_PIN_12_TC4_ICP 12 31#define GMBUS_PIN_13_TC5_TGP 13 32#define GMBUS_PIN_14_TC6_TGP 14 33 34#define GMBUS_NUM_PINS 15 /* including 0 */ 35 36int intel_gmbus_setup(struct drm_i915_private *dev_priv); 37void intel_gmbus_teardown(struct drm_i915_private *dev_priv); 38bool intel_gmbus_is_valid_pin(struct drm_i915_private *dev_priv, 39 unsigned int pin); 40int intel_gmbus_output_aksv(struct i2c_adapter *adapter); 41 42struct i2c_adapter * 43intel_gmbus_get_adapter(struct drm_i915_private *dev_priv, unsigned int pin); 44void intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit); 45bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter); 46void intel_gmbus_reset(struct drm_i915_private *dev_priv); 47 48#endif /* __INTEL_GMBUS_H__ */