1/* $NetBSD: nouveau_nvkm_subdev_i2c_padgm200.c,v 1.2 2021/12/18 23:45:40 riastradh Exp $ */ 2 3/* 4 * Copyright 2014 Red Hat Inc. 5 * 6 * Permission is hereby granted, free of charge, to any person obtaining a 7 * copy of this software and associated documentation files (the "Software"), 8 * to deal in the Software without restriction, including without limitation 9 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 10 * and/or sell copies of the Software, and to permit persons to whom the 11 * Software is furnished to do so, subject to the following conditions: 12 * 13 * The above copyright notice and this permission notice shall be included in 14 * all copies or substantial portions of the Software. 15 * 16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 22 * OTHER DEALINGS IN THE SOFTWARE. 23 * 24 * Authors: Ben Skeggs 25 */ 26#include <sys/cdefs.h> 27__KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_subdev_i2c_padgm200.c,v 1.2 2021/12/18 23:45:40 riastradh Exp $"); 28 29#include "pad.h" 30#include "aux.h" 31#include "bus.h" 32 33static void 34gm200_i2c_pad_mode(struct nvkm_i2c_pad *pad, enum nvkm_i2c_pad_mode mode) 35{ 36 struct nvkm_subdev *subdev = &pad->i2c->subdev; 37 struct nvkm_device *device = subdev->device; 38 const u32 base = (pad->id - NVKM_I2C_PAD_HYBRID(0)) * 0x50; 39 40 switch (mode) { 41 case NVKM_I2C_PAD_OFF: 42 nvkm_mask(device, 0x00d97c + base, 0x00000001, 0x00000001); 43 break; 44 case NVKM_I2C_PAD_I2C: 45 nvkm_mask(device, 0x00d970 + base, 0x0000c003, 0x0000c001); 46 nvkm_mask(device, 0x00d97c + base, 0x00000001, 0x00000000); 47 break; 48 case NVKM_I2C_PAD_AUX: 49 nvkm_mask(device, 0x00d970 + base, 0x0000c003, 0x00000002); 50 nvkm_mask(device, 0x00d97c + base, 0x00000001, 0x00000000); 51 break; 52 default: 53 WARN_ON(1); 54 break; 55 } 56} 57 58static const struct nvkm_i2c_pad_func 59gm200_i2c_pad_s_func = { 60 .bus_new_4 = gf119_i2c_bus_new, 61 .aux_new_6 = gm200_i2c_aux_new, 62 .mode = gm200_i2c_pad_mode, 63}; 64 65int 66gm200_i2c_pad_s_new(struct nvkm_i2c *i2c, int id, struct nvkm_i2c_pad **ppad) 67{ 68 return nvkm_i2c_pad_new_(&gm200_i2c_pad_s_func, i2c, id, ppad); 69} 70 71static const struct nvkm_i2c_pad_func 72gm200_i2c_pad_x_func = { 73 .bus_new_4 = gf119_i2c_bus_new, 74 .aux_new_6 = gm200_i2c_aux_new, 75}; 76 77int 78gm200_i2c_pad_x_new(struct nvkm_i2c *i2c, int id, struct nvkm_i2c_pad **ppad) 79{ 80 return nvkm_i2c_pad_new_(&gm200_i2c_pad_x_func, i2c, id, ppad); 81} 82