From f105aa3715289ce22b1df24e83f264fdb15d8e98 Mon Sep 17 00:00:00 2001 From: Ben Skeggs Date: Tue, 19 Aug 2014 07:18:01 +1000 Subject: [PATCH] drm/gm204/i2c: add pad driver Signed-off-by: Ben Skeggs --- drivers/gpu/drm/nouveau/Makefile | 1 + .../drm/nouveau/core/subdev/i2c/padgm204.c | 86 +++++++++++++++++++ .../gpu/drm/nouveau/core/subdev/i2c/priv.h | 1 + 3 files changed, 88 insertions(+) create mode 100644 drivers/gpu/drm/nouveau/core/subdev/i2c/padgm204.c diff --git a/drivers/gpu/drm/nouveau/Makefile b/drivers/gpu/drm/nouveau/Makefile index fe0f7705eefd..b7dd0dce7d0d 100644 --- a/drivers/gpu/drm/nouveau/Makefile +++ b/drivers/gpu/drm/nouveau/Makefile @@ -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 diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/padgm204.c b/drivers/gpu/drm/nouveau/core/subdev/i2c/padgm204.c new file mode 100644 index 000000000000..f0e6fbbaa8cd --- /dev/null +++ b/drivers/gpu/drm/nouveau/core/subdev/i2c/padgm204.c @@ -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, + }, +}; diff --git a/drivers/gpu/drm/nouveau/core/subdev/i2c/priv.h b/drivers/gpu/drm/nouveau/core/subdev/i2c/priv.h index 780090b6425a..25acf8cd7eec 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/i2c/priv.h +++ b/drivers/gpu/drm/nouveau/core/subdev/i2c/priv.h @@ -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), \ -- 2.39.2