mirror of
https://github.com/edk2-porting/linux-next.git
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88 lines
2.7 KiB
C
88 lines
2.7 KiB
C
/*
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* Copyright 2014 Red Hat Inc.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*
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* Authors: Ben Skeggs
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*/
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#include "pad.h"
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struct gm204_i2c_pad {
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struct nvkm_i2c_pad base;
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int addr;
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};
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static int
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gm204_i2c_pad_fini(struct nvkm_object *object, bool suspend)
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{
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struct nvkm_i2c *i2c = (void *)nvkm_i2c(object);
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struct nvkm_device *device = i2c->subdev.device;
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struct gm204_i2c_pad *pad = (void *)object;
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nvkm_mask(device, 0x00d97c + pad->addr, 0x00000001, 0x00000001);
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return nvkm_i2c_pad_fini(&pad->base, suspend);
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}
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static int
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gm204_i2c_pad_init(struct nvkm_object *object)
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{
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struct nvkm_i2c *i2c = (void *)nvkm_i2c(object);
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struct nvkm_device *device = i2c->subdev.device;
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struct gm204_i2c_pad *pad = (void *)object;
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switch (nv_oclass(pad->base.next)->handle) {
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case NV_I2C_TYPE_DCBI2C(DCB_I2C_NVIO_AUX):
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nvkm_mask(device, 0x00d970 + pad->addr, 0x0000c003, 0x00000002);
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break;
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case NV_I2C_TYPE_DCBI2C(DCB_I2C_NVIO_BIT):
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default:
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nvkm_mask(device, 0x00d970 + pad->addr, 0x0000c003, 0x0000c001);
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break;
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}
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nvkm_mask(device, 0x00d97c + pad->addr, 0x00000001, 0x00000000);
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return nvkm_i2c_pad_init(&pad->base);
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}
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static int
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gm204_i2c_pad_ctor(struct nvkm_object *parent, struct nvkm_object *engine,
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struct nvkm_oclass *oclass, void *data, u32 index,
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struct nvkm_object **pobject)
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{
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struct gm204_i2c_pad *pad;
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int ret;
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ret = nvkm_i2c_pad_create(parent, engine, oclass, index, &pad);
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*pobject = nv_object(pad);
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if (ret)
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return ret;
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pad->addr = index * 0x50;;
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return 0;
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}
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struct nvkm_oclass
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gm204_i2c_pad_oclass = {
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.ofuncs = &(struct nvkm_ofuncs) {
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.ctor = gm204_i2c_pad_ctor,
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.dtor = _nvkm_i2c_pad_dtor,
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.init = gm204_i2c_pad_init,
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.fini = gm204_i2c_pad_fini,
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},
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};
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