nouveau-y += core/subdev/bios/dcb.o
 nouveau-y += core/subdev/bios/gpio.o
 nouveau-y += core/subdev/bios/i2c.o
+nouveau-y += core/subdev/clock/nv04.o
+nouveau-y += core/subdev/clock/nv40.o
+nouveau-y += core/subdev/clock/nv50.o
+nouveau-y += core/subdev/clock/nva3.o
+nouveau-y += core/subdev/clock/nvc0.o
 nouveau-y += core/subdev/device/base.o
 nouveau-y += core/subdev/device/nv04.o
 nouveau-y += core/subdev/device/nv10.o
 
--- /dev/null
+#ifndef __NOUVEAU_CLOCK_H__
+#define __NOUVEAU_CLOCK_H__
+
+#include <core/device.h>
+#include <core/subdev.h>
+
+struct nouveau_clock {
+       struct nouveau_subdev base;
+       void (*pll_set)(struct nouveau_clock *, u32 type, u32 freq);
+};
+
+static inline struct nouveau_clock *
+nouveau_clock(void *obj)
+{
+       return (void *)nv_device(obj)->subdev[NVDEV_SUBDEV_CLOCK];
+}
+
+#define nouveau_clock_create(p,e,o,d)                                          \
+       nouveau_subdev_create((p), (e), (o), 0, "CLOCK", "clock", d)
+#define nouveau_clock_destroy(p)                                               \
+       nouveau_subdev_destroy(&(p)->base)
+#define nouveau_clock_init(p)                                                  \
+       nouveau_subdev_init(&(p)->base)
+#define nouveau_clock_fini(p,s)                                                \
+       nouveau_subdev_fini(&(p)->base, (s))
+
+int  nouveau_clock_create_(struct nouveau_object *, struct nouveau_object *,
+                          struct nouveau_oclass *, void *, u32, int, void **);
+
+#define _nouveau_clock_dtor _nouveau_subdev_dtor
+#define _nouveau_clock_init _nouveau_subdev_init
+#define _nouveau_clock_fini _nouveau_subdev_fini
+
+extern struct nouveau_oclass nv04_clock_oclass;
+extern struct nouveau_oclass nv40_clock_oclass;
+extern struct nouveau_oclass nv50_clock_oclass;
+extern struct nouveau_oclass nva3_clock_oclass;
+extern struct nouveau_oclass nvc0_clock_oclass;
+
+#endif
 
--- /dev/null
+/*
+ * Copyright 2012 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 <subdev/clock.h>
+
+struct nv04_clock_priv {
+       struct nouveau_clock base;
+};
+
+static void
+nv04_clock_pll_set(struct nouveau_clock *clk, u32 type, u32 freq)
+{
+       struct nv04_clock_priv *priv = (void *)clk;
+
+       nv_warn(priv, "0x%08x/%dKhz unimplemented\n", type, freq);
+}
+
+static int
+nv04_clock_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
+               struct nouveau_oclass *oclass, void *data, u32 size,
+               struct nouveau_object **pobject)
+{
+       struct nv04_clock_priv *priv;
+       int ret;
+
+       ret = nouveau_clock_create(parent, engine, oclass, &priv);
+       *pobject = nv_object(priv);
+       if (ret)
+               return ret;
+
+       priv->base.pll_set = nv04_clock_pll_set;
+       return 0;
+}
+
+struct nouveau_oclass
+nv04_clock_oclass = {
+       .handle = NV_SUBDEV(CLOCK, 0x04),
+       .ofuncs = &(struct nouveau_ofuncs) {
+               .ctor = nv04_clock_ctor,
+               .dtor = _nouveau_clock_dtor,
+               .init = _nouveau_clock_init,
+               .fini = _nouveau_clock_fini,
+       },
+};
 
--- /dev/null
+/*
+ * Copyright 2012 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 <subdev/clock.h>
+
+struct nv40_clock_priv {
+       struct nouveau_clock base;
+};
+
+static void
+nv40_clock_pll_set(struct nouveau_clock *clk, u32 type, u32 freq)
+{
+       struct nv40_clock_priv *priv = (void *)clk;
+
+       nv_warn(priv, "0x%08x/%dKhz unimplemented\n", type, freq);
+}
+
+static int
+nv40_clock_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
+               struct nouveau_oclass *oclass, void *data, u32 size,
+               struct nouveau_object **pobject)
+{
+       struct nv40_clock_priv *priv;
+       int ret;
+
+       ret = nouveau_clock_create(parent, engine, oclass, &priv);
+       *pobject = nv_object(priv);
+       if (ret)
+               return ret;
+
+       priv->base.pll_set = nv40_clock_pll_set;
+       return 0;
+}
+
+struct nouveau_oclass
+nv40_clock_oclass = {
+       .handle = NV_SUBDEV(CLOCK, 0x40),
+       .ofuncs = &(struct nouveau_ofuncs) {
+               .ctor = nv40_clock_ctor,
+               .dtor = _nouveau_clock_dtor,
+               .init = _nouveau_clock_init,
+               .fini = _nouveau_clock_fini,
+       },
+};
 
--- /dev/null
+/*
+ * Copyright 2012 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 <subdev/clock.h>
+
+struct nv50_clock_priv {
+       struct nouveau_clock base;
+};
+
+static void
+nv50_clock_pll_set(struct nouveau_clock *clk, u32 type, u32 freq)
+{
+       struct nv50_clock_priv *priv = (void *)clk;
+
+       nv_warn(priv, "0x%08x/%dKhz unimplemented\n", type, freq);
+}
+
+static int
+nv50_clock_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
+               struct nouveau_oclass *oclass, void *data, u32 size,
+               struct nouveau_object **pobject)
+{
+       struct nv50_clock_priv *priv;
+       int ret;
+
+       ret = nouveau_clock_create(parent, engine, oclass, &priv);
+       *pobject = nv_object(priv);
+       if (ret)
+               return ret;
+
+       priv->base.pll_set = nv50_clock_pll_set;
+       return 0;
+}
+
+struct nouveau_oclass
+nv50_clock_oclass = {
+       .handle = NV_SUBDEV(CLOCK, 0x50),
+       .ofuncs = &(struct nouveau_ofuncs) {
+               .ctor = nv50_clock_ctor,
+               .dtor = _nouveau_clock_dtor,
+               .init = _nouveau_clock_init,
+               .fini = _nouveau_clock_fini,
+       },
+};
 
--- /dev/null
+/*
+ * Copyright 2012 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 <subdev/clock.h>
+
+struct nva3_clock_priv {
+       struct nouveau_clock base;
+};
+
+static void
+nva3_clock_pll_set(struct nouveau_clock *clk, u32 type, u32 freq)
+{
+       struct nva3_clock_priv *priv = (void *)clk;
+
+       nv_warn(priv, "0x%08x/%dKhz unimplemented\n", type, freq);
+}
+
+static int
+nva3_clock_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
+               struct nouveau_oclass *oclass, void *data, u32 size,
+               struct nouveau_object **pobject)
+{
+       struct nva3_clock_priv *priv;
+       int ret;
+
+       ret = nouveau_clock_create(parent, engine, oclass, &priv);
+       *pobject = nv_object(priv);
+       if (ret)
+               return ret;
+
+       priv->base.pll_set = nva3_clock_pll_set;
+       return 0;
+}
+
+struct nouveau_oclass
+nva3_clock_oclass = {
+       .handle = NV_SUBDEV(CLOCK, 0xa3),
+       .ofuncs = &(struct nouveau_ofuncs) {
+               .ctor = nva3_clock_ctor,
+               .dtor = _nouveau_clock_dtor,
+               .init = _nouveau_clock_init,
+               .fini = _nouveau_clock_fini,
+       },
+};
 
--- /dev/null
+/*
+ * Copyright 2012 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 <subdev/clock.h>
+
+struct nvc0_clock_priv {
+       struct nouveau_clock base;
+};
+
+static void
+nvc0_clock_pll_set(struct nouveau_clock *clk, u32 type, u32 freq)
+{
+       struct nvc0_clock_priv *priv = (void *)clk;
+
+       nv_warn(priv, "0x%08x/%dKhz unimplemented\n", type, freq);
+}
+
+static int
+nvc0_clock_ctor(struct nouveau_object *parent, struct nouveau_object *engine,
+               struct nouveau_oclass *oclass, void *data, u32 size,
+               struct nouveau_object **pobject)
+{
+       struct nvc0_clock_priv *priv;
+       int ret;
+
+       ret = nouveau_clock_create(parent, engine, oclass, &priv);
+       *pobject = nv_object(priv);
+       if (ret)
+               return ret;
+
+       priv->base.pll_set = nvc0_clock_pll_set;
+       return 0;
+}
+
+struct nouveau_oclass
+nvc0_clock_oclass = {
+       .handle = NV_SUBDEV(CLOCK, 0xc0),
+       .ofuncs = &(struct nouveau_ofuncs) {
+               .ctor = nvc0_clock_ctor,
+               .dtor = _nouveau_clock_dtor,
+               .init = _nouveau_clock_init,
+               .fini = _nouveau_clock_fini,
+       },
+};
 
 #include <subdev/device.h>
 #include <subdev/bios.h>
 #include <subdev/i2c.h>
+#include <subdev/clock.h>
 
 int
 nv04_identify(struct nouveau_device *device)
        case 0x04:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv04_clock_oclass;
                break;
        case 0x05:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv04_clock_oclass;
                break;
        default:
                nv_fatal(device, "unknown RIVA chipset\n");
 
 #include <subdev/bios.h>
 #include <subdev/gpio.h>
 #include <subdev/i2c.h>
+#include <subdev/clock.h>
 
 int
 nv10_identify(struct nouveau_device *device)
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv10_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv04_clock_oclass;
                break;
        case 0x15:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv10_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv04_clock_oclass;
                break;
        case 0x16:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv10_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv04_clock_oclass;
                break;
        case 0x1a:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv10_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv04_clock_oclass;
                break;
        case 0x11:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv10_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv04_clock_oclass;
                break;
        case 0x17:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv10_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv04_clock_oclass;
                break;
        case 0x1f:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv10_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv04_clock_oclass;
                break;
        case 0x18:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv10_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv04_clock_oclass;
                break;
        default:
                nv_fatal(device, "unknown Celsius chipset\n");
 
 #include <subdev/bios.h>
 #include <subdev/gpio.h>
 #include <subdev/i2c.h>
+#include <subdev/clock.h>
 
 int
 nv20_identify(struct nouveau_device *device)
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv10_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv04_clock_oclass;
                break;
        case 0x25:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv10_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv04_clock_oclass;
                break;
        case 0x28:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv10_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv04_clock_oclass;
                break;
        case 0x2a:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv10_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv04_clock_oclass;
                break;
        default:
                nv_fatal(device, "unknown Kelvin chipset\n");
 
 #include <subdev/bios.h>
 #include <subdev/gpio.h>
 #include <subdev/i2c.h>
+#include <subdev/clock.h>
 
 int
 nv30_identify(struct nouveau_device *device)
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv10_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv04_clock_oclass;
                break;
        case 0x35:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv10_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv04_clock_oclass;
                break;
        case 0x31:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv10_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv04_clock_oclass;
                break;
        case 0x36:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv10_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv04_clock_oclass;
                break;
        case 0x34:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv10_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv04_clock_oclass;
                break;
        default:
                nv_fatal(device, "unknown Rankine chipset\n");
 
 #include <subdev/bios.h>
 #include <subdev/gpio.h>
 #include <subdev/i2c.h>
+#include <subdev/clock.h>
 
 int
 nv40_identify(struct nouveau_device *device)
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv10_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv40_clock_oclass;
                break;
        case 0x41:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv10_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv40_clock_oclass;
                break;
        case 0x42:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv10_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv40_clock_oclass;
                break;
        case 0x43:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv10_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv40_clock_oclass;
                break;
        case 0x45:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv10_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv40_clock_oclass;
                break;
        case 0x47:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv10_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv40_clock_oclass;
                break;
        case 0x49:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv10_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv40_clock_oclass;
                break;
        case 0x4b:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv10_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv40_clock_oclass;
                break;
        case 0x44:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv10_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv40_clock_oclass;
                break;
        case 0x46:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv10_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv40_clock_oclass;
                break;
        case 0x4a:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv10_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv40_clock_oclass;
                break;
        case 0x4c:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv10_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv40_clock_oclass;
                break;
        case 0x4e:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv10_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv40_clock_oclass;
                break;
        case 0x63:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv10_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv40_clock_oclass;
                break;
        case 0x67:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv10_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv40_clock_oclass;
                break;
        case 0x68:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv10_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv40_clock_oclass;
                break;
        default:
                nv_fatal(device, "unknown Curie chipset\n");
 
 #include <subdev/bios.h>
 #include <subdev/gpio.h>
 #include <subdev/i2c.h>
+#include <subdev/clock.h>
 
 int
 nv50_identify(struct nouveau_device *device)
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv50_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv50_clock_oclass;
                break;
        case 0x84:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv50_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv50_clock_oclass;
                break;
        case 0x86:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv50_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv50_clock_oclass;
                break;
        case 0x92:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv50_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv50_clock_oclass;
                break;
        case 0x94:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv50_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv50_clock_oclass;
                break;
        case 0x96:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv50_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv50_clock_oclass;
                break;
        case 0x98:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv50_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv50_clock_oclass;
                break;
        case 0xa0:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv50_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv50_clock_oclass;
                break;
        case 0xaa:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv50_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv50_clock_oclass;
                break;
        case 0xac:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv50_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nv50_clock_oclass;
                break;
        case 0xa3:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv50_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nva3_clock_oclass;
                break;
        case 0xa5:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv50_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nva3_clock_oclass;
                break;
        case 0xa8:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv50_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nva3_clock_oclass;
                break;
        case 0xaf:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv50_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nva3_clock_oclass;
                break;
        default:
                nv_fatal(device, "unknown Tesla chipset\n");
 
 #include <subdev/bios.h>
 #include <subdev/gpio.h>
 #include <subdev/i2c.h>
+#include <subdev/clock.h>
 
 int
 nvc0_identify(struct nouveau_device *device)
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv50_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
                break;
        case 0xc4:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv50_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
                break;
        case 0xc3:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv50_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
                break;
        case 0xce:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv50_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
                break;
        case 0xcf:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv50_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
                break;
        case 0xc1:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv50_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
                break;
        case 0xc8:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nv50_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
                break;
        case 0xd9:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nvd0_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
                break;
        default:
                nv_fatal(device, "unknown Fermi chipset\n");
 
 #include <subdev/bios.h>
 #include <subdev/gpio.h>
 #include <subdev/i2c.h>
+#include <subdev/clock.h>
 
 int
 nve0_identify(struct nouveau_device *device)
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nvd0_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
                break;
        case 0xe7:
                device->oclass[NVDEV_SUBDEV_VBIOS  ] = &nouveau_bios_oclass;
                device->oclass[NVDEV_SUBDEV_GPIO   ] = &nvd0_gpio_oclass;
                device->oclass[NVDEV_SUBDEV_I2C    ] = &nouveau_i2c_oclass;
+               device->oclass[NVDEV_SUBDEV_CLOCK  ] = &nvc0_clock_oclass;
                break;
        default:
                nv_fatal(device, "unknown Kepler chipset\n");