Merge branch 'drm-next-4.15-dc' of git://people.freedesktop.org/~agd5f/linux into drm-next

Initial pull request for DC support.  We've completed a substantial amount of
the cleanup and restructuring in our TODO.  There are a few additional
cleanups that we are continuing to work on, but I don't think there are any
showstoppers remaining. We've tried to maintain most of the history for bisect
purposes.  Harry made sure all the commits build.  We've enabled DC for vega10
and Raven.  Pre-vega10 parts can be enabled via module parameter (amdgpu.dc=1),
but are not enabled by default at this point until we get further testing
upstream.

This code provides atomic modesetting support for DCE8 (CIK), DCE10 (Tonga,
Fiji), DCE11 (CZ, ST, Polaris), DCE12 (vega10), and DCN1 (RV) including
HDMI and DP audio, DP MST, and many other advanced display features.

+

Latest cleanups for DC from you and Harry.  Note that there is some
flickering on some older asics with this branch due to a regression in powerplay
that has already been fixed and will be included in my next non-DC pull request
next week.

* 'drm-next-4.15-dc' of git://people.freedesktop.org/~agd5f/linux: (897 commits)
  amdgpu/dc: use kref for dc_state.
  amdgpu/dc: convert dc_sink to kref.
  amdgpu/dc: convert dc_stream_state to kref.
  amdgpu/dc: use kref for dc_plane_state.
  amdgpu/dc: convert dc_gamma to kref reference counting.
  amdgpu/dc: convert dc_transfer to use a kref.
  amdgpu/dc: kill a bunch of dead code.
  amdgpu/dc: set a bunch of functions to static.
  amdgpu/dc: kill some deadcode in dc core.
  amdgpu/dc: fix indentation on a couple of returns.
  amdgpu/dm: don't use after free.
  amdgpu/dc: kfree already checks for NULL.
  amdgpu/dc: fix a bunch of misc whitespace.
  amdgpu/dc: drop hw_sequencer_types.h
  amdgpu/dc: drop dce110_types.h
  amdgpu/dc: use kernel ilog2 for log_2.
  amdgpu/dc: don't memset after kzalloc.
  amdgpu/dc: inline dal grph object id functions.
  amdgpu/dc: inline dml_round_to_multiple
  amdgpu/dc: rename bios get_image symbol to something more searchable.
  ...

4 files changed, 671 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/display/dc/gpio/dce120/hw_factory_dce120.c b/drivers/gpu/drm/amd/display/dc/gpio/dce120/hw_factory_dce120.c
new file mode 100644
index 0000000..4ced9a7
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/gpio/dce120/hw_factory_dce120.c
@@ -0,0 +1,197 @@
+/*
+ * Copyright 2013-15 Advanced Micro Devices, 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: AMD
+ *
+ */
+
+#include "dm_services.h"
+#include "include/gpio_types.h"
+#include "../hw_factory.h"
+
+
+#include "../hw_gpio.h"
+#include "../hw_ddc.h"
+#include "../hw_hpd.h"
+
+#include "hw_factory_dce120.h"
+
+#include "vega10/DC/dce_12_0_offset.h"
+#include "vega10/DC/dce_12_0_sh_mask.h"
+#include "vega10/soc15ip.h"
+
+#define block HPD
+#define reg_num 0
+
+/* set field name */
+#define SF_HPD(reg_name, field_name, post_fix)\
+	.field_name = HPD0_ ## reg_name ## __ ## field_name ## post_fix
+
+/* set field name */
+#define SF_HPD(reg_name, field_name, post_fix)\
+	.field_name = HPD0_ ## reg_name ## __ ## field_name ## post_fix
+
+#define BASE_INNER(seg) \
+	DCE_BASE__INST0_SEG ## seg
+
+/* compile time expand base address. */
+#define BASE(seg) \
+	BASE_INNER(seg)
+
+#define REG(reg_name)\
+		BASE(mm ## reg_name ## _BASE_IDX) + mm ## reg_name
+
+#define REGI(reg_name, block, id)\
+	BASE(mm ## block ## id ## _ ## reg_name ## _BASE_IDX) + \
+				mm ## block ## id ## _ ## reg_name
+
+
+#include "reg_helper.h"
+#include "../hpd_regs.h"
+
+#define hpd_regs(id) \
+{\
+	HPD_REG_LIST(id)\
+}
+
+static const struct hpd_registers hpd_regs[] = {
+	hpd_regs(0),
+	hpd_regs(1),
+	hpd_regs(2),
+	hpd_regs(3),
+	hpd_regs(4),
+	hpd_regs(5)
+};
+
+static const struct hpd_sh_mask hpd_shift = {
+		HPD_MASK_SH_LIST(__SHIFT)
+};
+
+static const struct hpd_sh_mask hpd_mask = {
+		HPD_MASK_SH_LIST(_MASK)
+};
+
+#include "../ddc_regs.h"
+
+ /* set field name */
+#define SF_DDC(reg_name, field_name, post_fix)\
+	.field_name = reg_name ## __ ## field_name ## post_fix
+
+static const struct ddc_registers ddc_data_regs[] = {
+	ddc_data_regs(1),
+	ddc_data_regs(2),
+	ddc_data_regs(3),
+	ddc_data_regs(4),
+	ddc_data_regs(5),
+	ddc_data_regs(6),
+	ddc_vga_data_regs,
+	ddc_i2c_data_regs
+};
+
+static const struct ddc_registers ddc_clk_regs[] = {
+	ddc_clk_regs(1),
+	ddc_clk_regs(2),
+	ddc_clk_regs(3),
+	ddc_clk_regs(4),
+	ddc_clk_regs(5),
+	ddc_clk_regs(6),
+	ddc_vga_clk_regs,
+	ddc_i2c_clk_regs
+};
+
+static const struct ddc_sh_mask ddc_shift = {
+		DDC_MASK_SH_LIST(__SHIFT)
+};
+
+static const struct ddc_sh_mask ddc_mask = {
+		DDC_MASK_SH_LIST(_MASK)
+};
+
+static void define_ddc_registers(
+		struct hw_gpio_pin *pin,
+		uint32_t en)
+{
+	struct hw_ddc *ddc = HW_DDC_FROM_BASE(pin);
+
+	switch (pin->id) {
+	case GPIO_ID_DDC_DATA:
+		ddc->regs = &ddc_data_regs[en];
+		ddc->base.regs = &ddc_data_regs[en].gpio;
+		break;
+	case GPIO_ID_DDC_CLOCK:
+		ddc->regs = &ddc_clk_regs[en];
+		ddc->base.regs = &ddc_clk_regs[en].gpio;
+		break;
+	default:
+		ASSERT_CRITICAL(false);
+		return;
+	}
+
+	ddc->shifts = &ddc_shift;
+	ddc->masks = &ddc_mask;
+
+}
+
+static void define_hpd_registers(struct hw_gpio_pin *pin, uint32_t en)
+{
+	struct hw_hpd *hpd = HW_HPD_FROM_BASE(pin);
+
+	hpd->regs = &hpd_regs[en];
+	hpd->shifts = &hpd_shift;
+	hpd->masks = &hpd_mask;
+	hpd->base.regs = &hpd_regs[en].gpio;
+}
+
+
+/* fucntion table */
+static const struct hw_factory_funcs funcs = {
+	.create_ddc_data = dal_hw_ddc_create,
+	.create_ddc_clock = dal_hw_ddc_create,
+	.create_generic = NULL,
+	.create_hpd = dal_hw_hpd_create,
+	.create_sync = NULL,
+	.create_gsl = NULL,
+	.define_hpd_registers = define_hpd_registers,
+	.define_ddc_registers = define_ddc_registers
+};
+/*
+ * dal_hw_factory_dce120_init
+ *
+ * @brief
+ * Initialize HW factory function pointers and pin info
+ *
+ * @param
+ * struct hw_factory *factory - [out] struct of function pointers
+ */
+void dal_hw_factory_dce120_init(struct hw_factory *factory)
+{
+	/*TODO check ASIC CAPs*/
+	factory->number_of_pins[GPIO_ID_DDC_DATA] = 8;
+	factory->number_of_pins[GPIO_ID_DDC_CLOCK] = 8;
+	factory->number_of_pins[GPIO_ID_GENERIC] = 7;
+	factory->number_of_pins[GPIO_ID_HPD] = 6;
+	factory->number_of_pins[GPIO_ID_GPIO_PAD] = 31;
+	factory->number_of_pins[GPIO_ID_VIP_PAD] = 0;
+	factory->number_of_pins[GPIO_ID_SYNC] = 2;
+	factory->number_of_pins[GPIO_ID_GSL] = 4;
+
+	factory->funcs = &funcs;
+}
diff --git a/drivers/gpu/drm/amd/display/dc/gpio/dce120/hw_factory_dce120.h b/drivers/gpu/drm/amd/display/dc/gpio/dce120/hw_factory_dce120.h
new file mode 100644
index 0000000..db260c3
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/gpio/dce120/hw_factory_dce120.h
@@ -0,0 +1,32 @@
+/*
+ * Copyright 2013-15 Advanced Micro Devices, 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: AMD
+ *
+ */
+
+#ifndef __DAL_HW_FACTORY_DCE120_H__
+#define __DAL_HW_FACTORY_DCE120_H__
+
+/* Initialize HW factory function pointers and pin info */
+void dal_hw_factory_dce120_init(struct hw_factory *factory);
+
+#endif /* __DAL_HW_FACTORY_DCE120_H__ */
diff --git a/drivers/gpu/drm/amd/display/dc/gpio/dce120/hw_translate_dce120.c b/drivers/gpu/drm/amd/display/dc/gpio/dce120/hw_translate_dce120.c
new file mode 100644
index 0000000..af3843a
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/gpio/dce120/hw_translate_dce120.c
@@ -0,0 +1,408 @@
+/*
+ * Copyright 2013-15 Advanced Micro Devices, 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: AMD
+ *
+ */
+
+/*
+ * Pre-requisites: headers required by header of this unit
+ */
+
+#include "hw_translate_dce120.h"
+
+#include "dm_services.h"
+#include "include/gpio_types.h"
+#include "../hw_translate.h"
+
+#include "vega10/DC/dce_12_0_offset.h"
+#include "vega10/DC/dce_12_0_sh_mask.h"
+#include "vega10/soc15ip.h"
+
+/* begin *********************
+ * macros to expend register list macro defined in HW object header file */
+
+#define BASE_INNER(seg) \
+	DCE_BASE__INST0_SEG ## seg
+
+/* compile time expand base address. */
+#define BASE(seg) \
+	BASE_INNER(seg)
+
+#define REG(reg_name)\
+		BASE(mm ## reg_name ## _BASE_IDX) + mm ## reg_name
+
+#define REGI(reg_name, block, id)\
+	BASE(mm ## block ## id ## _ ## reg_name ## _BASE_IDX) + \
+				mm ## block ## id ## _ ## reg_name
+
+/* macros to expend register list macro defined in HW object header file
+ * end *********************/
+
+static bool offset_to_id(
+	uint32_t offset,
+	uint32_t mask,
+	enum gpio_id *id,
+	uint32_t *en)
+{
+	switch (offset) {
+	/* GENERIC */
+	case REG(DC_GPIO_GENERIC_A):
+		*id = GPIO_ID_GENERIC;
+		switch (mask) {
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICA_A_MASK:
+			*en = GPIO_GENERIC_A;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICB_A_MASK:
+			*en = GPIO_GENERIC_B;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICC_A_MASK:
+			*en = GPIO_GENERIC_C;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICD_A_MASK:
+			*en = GPIO_GENERIC_D;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICE_A_MASK:
+			*en = GPIO_GENERIC_E;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICF_A_MASK:
+			*en = GPIO_GENERIC_F;
+			return true;
+		case DC_GPIO_GENERIC_A__DC_GPIO_GENERICG_A_MASK:
+			*en = GPIO_GENERIC_G;
+			return true;
+		default:
+			ASSERT_CRITICAL(false);
+			return false;
+		}
+	break;
+	/* HPD */
+	case REG(DC_GPIO_HPD_A):
+		*id = GPIO_ID_HPD;
+		switch (mask) {
+		case DC_GPIO_HPD_A__DC_GPIO_HPD1_A_MASK:
+			*en = GPIO_HPD_1;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD2_A_MASK:
+			*en = GPIO_HPD_2;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD3_A_MASK:
+			*en = GPIO_HPD_3;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD4_A_MASK:
+			*en = GPIO_HPD_4;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD5_A_MASK:
+			*en = GPIO_HPD_5;
+			return true;
+		case DC_GPIO_HPD_A__DC_GPIO_HPD6_A_MASK:
+			*en = GPIO_HPD_6;
+			return true;
+		default:
+			ASSERT_CRITICAL(false);
+			return false;
+		}
+	break;
+	/* SYNCA */
+	case REG(DC_GPIO_SYNCA_A):
+		*id = GPIO_ID_SYNC;
+		switch (mask) {
+		case DC_GPIO_SYNCA_A__DC_GPIO_HSYNCA_A_MASK:
+			*en = GPIO_SYNC_HSYNC_A;
+			return true;
+		case DC_GPIO_SYNCA_A__DC_GPIO_VSYNCA_A_MASK:
+			*en = GPIO_SYNC_VSYNC_A;
+			return true;
+		default:
+			ASSERT_CRITICAL(false);
+			return false;
+		}
+	break;
+	/* REG(DC_GPIO_GENLK_MASK */
+	case REG(DC_GPIO_GENLK_A):
+		*id = GPIO_ID_GSL;
+		switch (mask) {
+		case DC_GPIO_GENLK_A__DC_GPIO_GENLK_CLK_A_MASK:
+			*en = GPIO_GSL_GENLOCK_CLOCK;
+			return true;
+		case DC_GPIO_GENLK_A__DC_GPIO_GENLK_VSYNC_A_MASK:
+			*en = GPIO_GSL_GENLOCK_VSYNC;
+			return true;
+		case DC_GPIO_GENLK_A__DC_GPIO_SWAPLOCK_A_A_MASK:
+			*en = GPIO_GSL_SWAPLOCK_A;
+			return true;
+		case DC_GPIO_GENLK_A__DC_GPIO_SWAPLOCK_B_A_MASK:
+			*en = GPIO_GSL_SWAPLOCK_B;
+			return true;
+		default:
+			ASSERT_CRITICAL(false);
+			return false;
+		}
+	break;
+	/* DDC */
+	/* we don't care about the GPIO_ID for DDC
+	 * in DdcHandle it will use GPIO_ID_DDC_DATA/GPIO_ID_DDC_CLOCK
+	 * directly in the create method */
+	case REG(DC_GPIO_DDC1_A):
+		*en = GPIO_DDC_LINE_DDC1;
+		return true;
+	case REG(DC_GPIO_DDC2_A):
+		*en = GPIO_DDC_LINE_DDC2;
+		return true;
+	case REG(DC_GPIO_DDC3_A):
+		*en = GPIO_DDC_LINE_DDC3;
+		return true;
+	case REG(DC_GPIO_DDC4_A):
+		*en = GPIO_DDC_LINE_DDC4;
+		return true;
+	case REG(DC_GPIO_DDC5_A):
+		*en = GPIO_DDC_LINE_DDC5;
+		return true;
+	case REG(DC_GPIO_DDC6_A):
+		*en = GPIO_DDC_LINE_DDC6;
+		return true;
+	case REG(DC_GPIO_DDCVGA_A):
+		*en = GPIO_DDC_LINE_DDC_VGA;
+		return true;
+	/* GPIO_I2CPAD */
+	case REG(DC_GPIO_I2CPAD_A):
+		*en = GPIO_DDC_LINE_I2C_PAD;
+		return true;
+	/* Not implemented */
+	case REG(DC_GPIO_PWRSEQ_A):
+	case REG(DC_GPIO_PAD_STRENGTH_1):
+	case REG(DC_GPIO_PAD_STRENGTH_2):
+	case REG(DC_GPIO_DEBUG):
+		return false;
+	/* UNEXPECTED */
+	default:
+		ASSERT_CRITICAL(false);
+		return false;
+	}
+}
+
+static bool id_to_offset(
+	enum gpio_id id,
+	uint32_t en,
+	struct gpio_pin_info *info)
+{
+	bool result = true;
+
+	switch (id) {
+	case GPIO_ID_DDC_DATA:
+		info->mask = DC_GPIO_DDC6_A__DC_GPIO_DDC6DATA_A_MASK;
+		switch (en) {
+		case GPIO_DDC_LINE_DDC1:
+			info->offset = REG(DC_GPIO_DDC1_A);
+		break;
+		case GPIO_DDC_LINE_DDC2:
+			info->offset = REG(DC_GPIO_DDC2_A);
+		break;
+		case GPIO_DDC_LINE_DDC3:
+			info->offset = REG(DC_GPIO_DDC3_A);
+		break;
+		case GPIO_DDC_LINE_DDC4:
+			info->offset = REG(DC_GPIO_DDC4_A);
+		break;
+		case GPIO_DDC_LINE_DDC5:
+			info->offset = REG(DC_GPIO_DDC5_A);
+		break;
+		case GPIO_DDC_LINE_DDC6:
+			info->offset = REG(DC_GPIO_DDC6_A);
+		break;
+		case GPIO_DDC_LINE_DDC_VGA:
+			info->offset = REG(DC_GPIO_DDCVGA_A);
+		break;
+		case GPIO_DDC_LINE_I2C_PAD:
+			info->offset = REG(DC_GPIO_I2CPAD_A);
+		break;
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_DDC_CLOCK:
+		info->mask = DC_GPIO_DDC6_A__DC_GPIO_DDC6CLK_A_MASK;
+		switch (en) {
+		case GPIO_DDC_LINE_DDC1:
+			info->offset = REG(DC_GPIO_DDC1_A);
+		break;
+		case GPIO_DDC_LINE_DDC2:
+			info->offset = REG(DC_GPIO_DDC2_A);
+		break;
+		case GPIO_DDC_LINE_DDC3:
+			info->offset = REG(DC_GPIO_DDC3_A);
+		break;
+		case GPIO_DDC_LINE_DDC4:
+			info->offset = REG(DC_GPIO_DDC4_A);
+		break;
+		case GPIO_DDC_LINE_DDC5:
+			info->offset = REG(DC_GPIO_DDC5_A);
+		break;
+		case GPIO_DDC_LINE_DDC6:
+			info->offset = REG(DC_GPIO_DDC6_A);
+		break;
+		case GPIO_DDC_LINE_DDC_VGA:
+			info->offset = REG(DC_GPIO_DDCVGA_A);
+		break;
+		case GPIO_DDC_LINE_I2C_PAD:
+			info->offset = REG(DC_GPIO_I2CPAD_A);
+		break;
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_GENERIC:
+		info->offset = REG(DC_GPIO_GENERIC_A);
+		switch (en) {
+		case GPIO_GENERIC_A:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICA_A_MASK;
+		break;
+		case GPIO_GENERIC_B:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICB_A_MASK;
+		break;
+		case GPIO_GENERIC_C:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICC_A_MASK;
+		break;
+		case GPIO_GENERIC_D:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICD_A_MASK;
+		break;
+		case GPIO_GENERIC_E:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICE_A_MASK;
+		break;
+		case GPIO_GENERIC_F:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICF_A_MASK;
+		break;
+		case GPIO_GENERIC_G:
+			info->mask = DC_GPIO_GENERIC_A__DC_GPIO_GENERICG_A_MASK;
+		break;
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_HPD:
+		info->offset = REG(DC_GPIO_HPD_A);
+		switch (en) {
+		case GPIO_HPD_1:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD1_A_MASK;
+		break;
+		case GPIO_HPD_2:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD2_A_MASK;
+		break;
+		case GPIO_HPD_3:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD3_A_MASK;
+		break;
+		case GPIO_HPD_4:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD4_A_MASK;
+		break;
+		case GPIO_HPD_5:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD5_A_MASK;
+		break;
+		case GPIO_HPD_6:
+			info->mask = DC_GPIO_HPD_A__DC_GPIO_HPD6_A_MASK;
+		break;
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_SYNC:
+		switch (en) {
+		case GPIO_SYNC_HSYNC_A:
+			info->offset = REG(DC_GPIO_SYNCA_A);
+			info->mask = DC_GPIO_SYNCA_A__DC_GPIO_HSYNCA_A_MASK;
+		break;
+		case GPIO_SYNC_VSYNC_A:
+			info->offset = REG(DC_GPIO_SYNCA_A);
+			info->mask = DC_GPIO_SYNCA_A__DC_GPIO_VSYNCA_A_MASK;
+		break;
+		case GPIO_SYNC_HSYNC_B:
+		case GPIO_SYNC_VSYNC_B:
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_GSL:
+		switch (en) {
+		case GPIO_GSL_GENLOCK_CLOCK:
+			info->offset = REG(DC_GPIO_GENLK_A);
+			info->mask = DC_GPIO_GENLK_A__DC_GPIO_GENLK_CLK_A_MASK;
+		break;
+		case GPIO_GSL_GENLOCK_VSYNC:
+			info->offset = REG(DC_GPIO_GENLK_A);
+			info->mask =
+				DC_GPIO_GENLK_A__DC_GPIO_GENLK_VSYNC_A_MASK;
+		break;
+		case GPIO_GSL_SWAPLOCK_A:
+			info->offset = REG(DC_GPIO_GENLK_A);
+			info->mask = DC_GPIO_GENLK_A__DC_GPIO_SWAPLOCK_A_A_MASK;
+		break;
+		case GPIO_GSL_SWAPLOCK_B:
+			info->offset = REG(DC_GPIO_GENLK_A);
+			info->mask = DC_GPIO_GENLK_A__DC_GPIO_SWAPLOCK_B_A_MASK;
+		break;
+		default:
+			ASSERT_CRITICAL(false);
+			result = false;
+		}
+	break;
+	case GPIO_ID_VIP_PAD:
+	default:
+		ASSERT_CRITICAL(false);
+		result = false;
+	}
+
+	if (result) {
+		info->offset_y = info->offset + 2;
+		info->offset_en = info->offset + 1;
+		info->offset_mask = info->offset - 1;
+
+		info->mask_y = info->mask;
+		info->mask_en = info->mask;
+		info->mask_mask = info->mask;
+	}
+
+	return result;
+}
+
+/* function table */
+static const struct hw_translate_funcs funcs = {
+	.offset_to_id = offset_to_id,
+	.id_to_offset = id_to_offset,
+};
+
+/*
+ * dal_hw_translate_dce120_init
+ *
+ * @brief
+ * Initialize Hw translate function pointers.
+ *
+ * @param
+ * struct hw_translate *tr - [out] struct of function pointers
+ *
+ */
+void dal_hw_translate_dce120_init(struct hw_translate *tr)
+{
+	tr->funcs = &funcs;
+}
diff --git a/drivers/gpu/drm/amd/display/dc/gpio/dce120/hw_translate_dce120.h b/drivers/gpu/drm/amd/display/dc/gpio/dce120/hw_translate_dce120.h
new file mode 100644
index 0000000..c217668
--- /dev/null
+++ b/drivers/gpu/drm/amd/display/dc/gpio/dce120/hw_translate_dce120.h
@@ -0,0 +1,34 @@
+/*
+ * Copyright 2013-15 Advanced Micro Devices, 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: AMD
+ *
+ */
+
+#ifndef __DAL_HW_TRANSLATE_DCE120_H__
+#define __DAL_HW_TRANSLATE_DCE120_H__
+
+struct hw_translate;
+
+/* Initialize Hw translate function pointers */
+void dal_hw_translate_dce120_init(struct hw_translate *tr);
+
+#endif /* __DAL_HW_TRANSLATE_DCE120_H__ */