mirror of
https://github.com/torvalds/linux.git
synced 2026-05-03 14:02:43 -04:00
13a8651920
Since switching the I2C-over-AUX helpers, there have been regressions on some display combinations due to us not having support for "address only" transactions. This commits enables support for them for GF119 and newer. Earlier GPUs have been reverted to a custom I2C-over-AUX algorithm. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
37 lines
1.5 KiB
C
37 lines
1.5 KiB
C
#ifndef __NVKM_I2C_AUX_H__
|
|
#define __NVKM_I2C_AUX_H__
|
|
#include "pad.h"
|
|
|
|
struct nvkm_i2c_aux_func {
|
|
bool address_only;
|
|
int (*xfer)(struct nvkm_i2c_aux *, bool retry, u8 type,
|
|
u32 addr, u8 *data, u8 *size);
|
|
int (*lnk_ctl)(struct nvkm_i2c_aux *, int link_nr, int link_bw,
|
|
bool enhanced_framing);
|
|
};
|
|
|
|
int nvkm_i2c_aux_ctor(const struct nvkm_i2c_aux_func *, struct nvkm_i2c_pad *,
|
|
int id, struct nvkm_i2c_aux *);
|
|
int nvkm_i2c_aux_new_(const struct nvkm_i2c_aux_func *, struct nvkm_i2c_pad *,
|
|
int id, struct nvkm_i2c_aux **);
|
|
void nvkm_i2c_aux_del(struct nvkm_i2c_aux **);
|
|
int nvkm_i2c_aux_xfer(struct nvkm_i2c_aux *, bool retry, u8 type,
|
|
u32 addr, u8 *data, u8 *size);
|
|
|
|
int g94_i2c_aux_new_(const struct nvkm_i2c_aux_func *, struct nvkm_i2c_pad *,
|
|
int, u8, struct nvkm_i2c_aux **);
|
|
|
|
int g94_i2c_aux_new(struct nvkm_i2c_pad *, int, u8, struct nvkm_i2c_aux **);
|
|
int g94_i2c_aux_xfer(struct nvkm_i2c_aux *, bool, u8, u32, u8 *, u8 *);
|
|
int gf119_i2c_aux_new(struct nvkm_i2c_pad *, int, u8, struct nvkm_i2c_aux **);
|
|
int gm200_i2c_aux_new(struct nvkm_i2c_pad *, int, u8, struct nvkm_i2c_aux **);
|
|
|
|
#define AUX_MSG(b,l,f,a...) do { \
|
|
struct nvkm_i2c_aux *_aux = (b); \
|
|
nvkm_##l(&_aux->pad->i2c->subdev, "aux %04x: "f"\n", _aux->id, ##a); \
|
|
} while(0)
|
|
#define AUX_ERR(b,f,a...) AUX_MSG((b), error, f, ##a)
|
|
#define AUX_DBG(b,f,a...) AUX_MSG((b), debug, f, ##a)
|
|
#define AUX_TRACE(b,f,a...) AUX_MSG((b), trace, f, ##a)
|
|
#endif
|