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drm/gm204/i2c: add pad driver 

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
This commit is contained in:
Ben Skeggs 2014-08-19 07:18:01 +10:00
parent 5b34cebe99
commit f105aa3715
3 changed files with 88 additions and 0 deletions
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1
drivers/gpu/drm/nouveau/Makefile
View File

@ -158,6 +158,7 @@ nouveau-y += core/subdev/i2c/bit.o
nouveau-y += core/subdev/i2c/pad.o
nouveau-y += core/subdev/i2c/padnv04.o
nouveau-y += core/subdev/i2c/padnv94.o
nouveau-y += core/subdev/i2c/padgm204.o
nouveau-y += core/subdev/i2c/nv04.o
nouveau-y += core/subdev/i2c/nv4e.o
nouveau-y += core/subdev/i2c/nv50.o

86
drivers/gpu/drm/nouveau/core/subdev/i2c/padgm204.c Normal file
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@ -0,0 +1,86 @@
/*
* Copyright 2014 Red Hat Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* Authors: Ben Skeggs
*/
#include "pad.h"
struct gm204_i2c_pad {
struct nvkm_i2c_pad base;
int addr;
};
static int
gm204_i2c_pad_fini(struct nouveau_object *object, bool suspend)
{
struct nouveau_i2c *i2c = (void *)object->engine;
struct gm204_i2c_pad *pad = (void *)object;
nv_mask(i2c, 0x00d97c + pad->addr, 0x00000001, 0x00000001);
return nvkm_i2c_pad_fini(&pad->base, suspend);
}
static int
gm204_i2c_pad_init(struct nouveau_object *object)
{
struct nouveau_i2c *i2c = (void *)object->engine;
struct gm204_i2c_pad *pad = (void *)object;
switch (nv_oclass(pad->base.next)->handle) {
case NV_I2C_TYPE_DCBI2C(DCB_I2C_NVIO_AUX):
nv_mask(i2c, 0x00d970 + pad->addr, 0x0000c003, 0x00000002);
break;
case NV_I2C_TYPE_DCBI2C(DCB_I2C_NVIO_BIT):
default:
nv_mask(i2c, 0x00d970 + pad->addr, 0x0000c003, 0x0000c001);
break;
}
nv_mask(i2c, 0x00d97c + pad->addr, 0x00000001, 0x00000000);
return nvkm_i2c_pad_init(&pad->base);
}
static int
gm204_i2c_pad_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
struct nouveau_oclass *oclass, void *data, u32 index,
struct nouveau_object **pobject)
{
struct gm204_i2c_pad *pad;
int ret;
ret = nvkm_i2c_pad_create(parent, engine, oclass, index, &pad);
*pobject = nv_object(pad);
if (ret)
return ret;
pad->addr = index * 0x50;;
return 0;
}
struct nouveau_oclass
gm204_i2c_pad_oclass = {
.ofuncs = &(struct nouveau_ofuncs) {
.ctor = gm204_i2c_pad_ctor,
.dtor = _nvkm_i2c_pad_dtor,
.init = gm204_i2c_pad_init,
.fini = gm204_i2c_pad_fini,
},
};

1
drivers/gpu/drm/nouveau/core/subdev/i2c/priv.h
View File

@ -5,6 +5,7 @@
extern struct nouveau_oclass nv04_i2c_pad_oclass;
extern struct nouveau_oclass nv94_i2c_pad_oclass;
extern struct nouveau_oclass gm204_i2c_pad_oclass;
#define nouveau_i2c_port_create(p,e,o,i,a,f,d) \
nouveau_i2c_port_create_((p), (e), (o), (i), (a), (f), \