1 /* 2 * Copyright 2014 Red Hat Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 * 22 * Authors: Ben Skeggs 23 */ 24 #include "pad.h" 25 #include "aux.h" 26 #include "bus.h" 27 28 static void 29 gm200_i2c_pad_mode(struct nvkm_i2c_pad *pad, enum nvkm_i2c_pad_mode mode) 30 { 31 struct nvkm_subdev *subdev = &pad->i2c->subdev; 32 struct nvkm_device *device = subdev->device; 33 const u32 base = (pad->id - NVKM_I2C_PAD_HYBRID(0)) * 0x50; 34 35 switch (mode) { 36 case NVKM_I2C_PAD_OFF: 37 nvkm_mask(device, 0x00d97c + base, 0x00000001, 0x00000001); 38 break; 39 case NVKM_I2C_PAD_I2C: 40 nvkm_mask(device, 0x00d970 + base, 0x0000c003, 0x0000c001); 41 nvkm_mask(device, 0x00d97c + base, 0x00000001, 0x00000000); 42 break; 43 case NVKM_I2C_PAD_AUX: 44 nvkm_mask(device, 0x00d970 + base, 0x0000c003, 0x00000002); 45 nvkm_mask(device, 0x00d97c + base, 0x00000001, 0x00000000); 46 break; 47 default: 48 WARN_ON(1); 49 break; 50 } 51 } 52 53 static const struct nvkm_i2c_pad_func 54 gm200_i2c_pad_s_func = { 55 .bus_new_4 = gf119_i2c_bus_new, 56 .aux_new_6 = gm200_i2c_aux_new, 57 .mode = gm200_i2c_pad_mode, 58 }; 59 60 int 61 gm200_i2c_pad_s_new(struct nvkm_i2c *i2c, int id, struct nvkm_i2c_pad **ppad) 62 { 63 return nvkm_i2c_pad_new_(&gm200_i2c_pad_s_func, i2c, id, ppad); 64 } 65 66 static const struct nvkm_i2c_pad_func 67 gm200_i2c_pad_x_func = { 68 .bus_new_4 = gf119_i2c_bus_new, 69 .aux_new_6 = gm200_i2c_aux_new, 70 }; 71 72 int 73 gm200_i2c_pad_x_new(struct nvkm_i2c *i2c, int id, struct nvkm_i2c_pad **ppad) 74 { 75 return nvkm_i2c_pad_new_(&gm200_i2c_pad_x_func, i2c, id, ppad); 76 } 77