drm/amd/dc: Add dc display driver (v2)

Supported DCE versions: 8.0, 10.0, 11.0, 11.2

v2: rebase against 4.11

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/display/dc/gpio/gpio_base.c

@@ -0,0 +1,272 @@
+/*
+ * Copyright 2012-15 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 "dm_services.h"
+
+#include "include/gpio_interface.h"
+#include "include/gpio_service_interface.h"
+#include "hw_gpio.h"
+#include "hw_translate.h"
+#include "hw_factory.h"
+#include "gpio_service.h"
+
+/*
+ * Post-requisites: headers required by this unit
+ */
+
+/*
+ * This unit
+ */
+
+/*
+ * @brief
+ * Public API
+ */
+
+enum gpio_result dal_gpio_open(
+	struct gpio *gpio,
+	enum gpio_mode mode)
+{
+	return dal_gpio_open_ex(gpio, mode);
+}
+
+enum gpio_result dal_gpio_open_ex(
+	struct gpio *gpio,
+	enum gpio_mode mode)
+{
+	if (gpio->pin) {
+		ASSERT_CRITICAL(false);
+		return GPIO_RESULT_ALREADY_OPENED;
+	}
+
+	gpio->mode = mode;
+
+	return dal_gpio_service_open(
+		gpio->service, gpio->id, gpio->en, mode, &gpio->pin);
+}
+
+enum gpio_result dal_gpio_get_value(
+	const struct gpio *gpio,
+	uint32_t *value)
+{
+	if (!gpio->pin) {
+		BREAK_TO_DEBUGGER();
+		return GPIO_RESULT_NULL_HANDLE;
+	}
+
+	return gpio->pin->funcs->get_value(gpio->pin, value);
+}
+
+enum gpio_result dal_gpio_set_value(
+	const struct gpio *gpio,
+	uint32_t value)
+{
+	if (!gpio->pin) {
+		BREAK_TO_DEBUGGER();
+		return GPIO_RESULT_NULL_HANDLE;
+	}
+
+	return gpio->pin->funcs->set_value(gpio->pin, value);
+}
+
+enum gpio_mode dal_gpio_get_mode(
+	const struct gpio *gpio)
+{
+	return gpio->mode;
+}
+
+enum gpio_result dal_gpio_change_mode(
+	struct gpio *gpio,
+	enum gpio_mode mode)
+{
+	if (!gpio->pin) {
+		BREAK_TO_DEBUGGER();
+		return GPIO_RESULT_NULL_HANDLE;
+	}
+
+	return gpio->pin->funcs->change_mode(gpio->pin, mode);
+}
+
+enum gpio_id dal_gpio_get_id(
+	const struct gpio *gpio)
+{
+	return gpio->id;
+}
+
+uint32_t dal_gpio_get_enum(
+	const struct gpio *gpio)
+{
+	return gpio->en;
+}
+
+enum gpio_result dal_gpio_set_config(
+	struct gpio *gpio,
+	const struct gpio_config_data *config_data)
+{
+	if (!gpio->pin) {
+		BREAK_TO_DEBUGGER();
+		return GPIO_RESULT_NULL_HANDLE;
+	}
+
+	return gpio->pin->funcs->set_config(gpio->pin, config_data);
+}
+
+enum gpio_result dal_gpio_get_pin_info(
+	const struct gpio *gpio,
+	struct gpio_pin_info *pin_info)
+{
+	return gpio->service->translate.funcs->id_to_offset(
+		gpio->id, gpio->en, pin_info) ?
+		GPIO_RESULT_OK : GPIO_RESULT_INVALID_DATA;
+}
+
+enum sync_source dal_gpio_get_sync_source(
+	const struct gpio *gpio)
+{
+	switch (gpio->id) {
+	case GPIO_ID_GENERIC:
+		switch (gpio->en) {
+		case GPIO_GENERIC_A:
+			return SYNC_SOURCE_IO_GENERIC_A;
+		case GPIO_GENERIC_B:
+			return SYNC_SOURCE_IO_GENERIC_B;
+		case GPIO_GENERIC_C:
+			return SYNC_SOURCE_IO_GENERIC_C;
+		case GPIO_GENERIC_D:
+			return SYNC_SOURCE_IO_GENERIC_D;
+		case GPIO_GENERIC_E:
+			return SYNC_SOURCE_IO_GENERIC_E;
+		case GPIO_GENERIC_F:
+			return SYNC_SOURCE_IO_GENERIC_F;
+		default:
+			return SYNC_SOURCE_NONE;
+		}
+	break;
+	case GPIO_ID_SYNC:
+		switch (gpio->en) {
+		case GPIO_SYNC_HSYNC_A:
+			return SYNC_SOURCE_IO_HSYNC_A;
+		case GPIO_SYNC_VSYNC_A:
+			return SYNC_SOURCE_IO_VSYNC_A;
+		case GPIO_SYNC_HSYNC_B:
+			return SYNC_SOURCE_IO_HSYNC_B;
+		case GPIO_SYNC_VSYNC_B:
+			return SYNC_SOURCE_IO_VSYNC_B;
+		default:
+			return SYNC_SOURCE_NONE;
+		}
+	break;
+	case GPIO_ID_HPD:
+		switch (gpio->en) {
+		case GPIO_HPD_1:
+			return SYNC_SOURCE_IO_HPD1;
+		case GPIO_HPD_2:
+			return SYNC_SOURCE_IO_HPD2;
+		default:
+			return SYNC_SOURCE_NONE;
+		}
+	break;
+	case GPIO_ID_GSL:
+		switch (gpio->en) {
+		case GPIO_GSL_GENLOCK_CLOCK:
+			return SYNC_SOURCE_GSL_IO_GENLOCK_CLOCK;
+		case GPIO_GSL_GENLOCK_VSYNC:
+			return SYNC_SOURCE_GSL_IO_GENLOCK_VSYNC;
+		case GPIO_GSL_SWAPLOCK_A:
+			return SYNC_SOURCE_GSL_IO_SWAPLOCK_A;
+		case GPIO_GSL_SWAPLOCK_B:
+			return SYNC_SOURCE_GSL_IO_SWAPLOCK_B;
+		default:
+			return SYNC_SOURCE_NONE;
+		}
+	break;
+	default:
+		return SYNC_SOURCE_NONE;
+	}
+}
+
+enum gpio_pin_output_state dal_gpio_get_output_state(
+	const struct gpio *gpio)
+{
+	return gpio->output_state;
+}
+
+void dal_gpio_close(
+	struct gpio *gpio)
+{
+	if (!gpio)
+		return;
+
+	dal_gpio_service_close(gpio->service, &gpio->pin);
+
+	gpio->mode = GPIO_MODE_UNKNOWN;
+}
+
+/*
+ * @brief
+ * Creation and destruction
+ */
+
+struct gpio *dal_gpio_create(
+	struct gpio_service *service,
+	enum gpio_id id,
+	uint32_t en,
+	enum gpio_pin_output_state output_state)
+{
+	struct gpio *gpio = dm_alloc(sizeof(struct gpio));
+
+	if (!gpio) {
+		ASSERT_CRITICAL(false);
+		return NULL;
+	}
+
+	gpio->service = service;
+	gpio->pin = NULL;
+	gpio->id = id;
+	gpio->en = en;
+	gpio->mode = GPIO_MODE_UNKNOWN;
+	gpio->output_state = output_state;
+
+	return gpio;
+}
+
+void dal_gpio_destroy(
+	struct gpio **gpio)
+{
+	if (!gpio || !*gpio) {
+		ASSERT_CRITICAL(false);
+		return;
+	}
+
+	dal_gpio_close(*gpio);
+
+	dm_free(*gpio);
+
+	*gpio = NULL;
+}