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path: root/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padnv94.c
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Diffstat (limited to 'drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padnv94.c')
-rw-r--r--drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padnv94.c86
1 files changed, 86 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padnv94.c b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padnv94.c
new file mode 100644
index 000000000000..afe79892f3be
--- /dev/null
+++ b/drivers/gpu/drm/nouveau/nvkm/subdev/i2c/padnv94.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 nv94_i2c_pad {
+ struct nvkm_i2c_pad base;
+ int addr;
+};
+
+static int
+nv94_i2c_pad_fini(struct nouveau_object *object, bool suspend)
+{
+ struct nouveau_i2c *i2c = (void *)nouveau_i2c(object);
+ struct nv94_i2c_pad *pad = (void *)object;
+ nv_mask(i2c, 0x00e50c + pad->addr, 0x00000001, 0x00000001);
+ return nvkm_i2c_pad_fini(&pad->base, suspend);
+}
+
+static int
+nv94_i2c_pad_init(struct nouveau_object *object)
+{
+ struct nouveau_i2c *i2c = (void *)nouveau_i2c(object);
+ struct nv94_i2c_pad *pad = (void *)object;
+
+ switch (nv_oclass(pad->base.next)->handle) {
+ case NV_I2C_TYPE_DCBI2C(DCB_I2C_NVIO_AUX):
+ nv_mask(i2c, 0x00e500 + pad->addr, 0x0000c003, 0x00000002);
+ break;
+ case NV_I2C_TYPE_DCBI2C(DCB_I2C_NVIO_BIT):
+ default:
+ nv_mask(i2c, 0x00e500 + pad->addr, 0x0000c003, 0x0000c001);
+ break;
+ }
+
+ nv_mask(i2c, 0x00e50c + pad->addr, 0x00000001, 0x00000000);
+ return nvkm_i2c_pad_init(&pad->base);
+}
+
+static int
+nv94_i2c_pad_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
+ struct nouveau_oclass *oclass, void *data, u32 index,
+ struct nouveau_object **pobject)
+{
+ struct nv94_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
+nv94_i2c_pad_oclass = {
+ .ofuncs = &(struct nouveau_ofuncs) {
+ .ctor = nv94_i2c_pad_ctor,
+ .dtor = _nvkm_i2c_pad_dtor,
+ .init = nv94_i2c_pad_init,
+ .fini = nv94_i2c_pad_fini,
+ },
+};