1 files changed, 107 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/dp/dp_power.h b/drivers/gpu/drm/msm/dp/dp_power.h
new file mode 100644
index 000000000000..76743d755833
--- /dev/null
+++ b/drivers/gpu/drm/msm/dp/dp_power.h
@@ -0,0 +1,107 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+/*
+ * Copyright (c) 2012-2020, The Linux Foundation. All rights reserved.
+ */
+
+#ifndef _DP_POWER_H_
+#define _DP_POWER_H_
+
+#include "dp_parser.h"
+
+/**
+ * sruct dp_power - DisplayPort's power related data
+ *
+ * @init: initializes the regulators/core clocks/GPIOs/pinctrl
+ * @deinit: turns off the regulators/core clocks/GPIOs/pinctrl
+ * @clk_enable: enable/disable the DP clocks
+ * @set_pixel_clk_parent: set the parent of DP pixel clock
+ */
+struct dp_power {
+	bool core_clks_on;
+	bool link_clks_on;
+	bool stream_clks_on;
+};
+
+/**
+ * dp_power_init() - enable power supplies for display controller
+ *
+ * @power: instance of power module
+ * @flip: bool for flipping gpio direction
+ * return: 0 if success or error if failure.
+ *
+ * This API will turn on the regulators and configures gpio's
+ * aux/hpd.
+ */
+int dp_power_init(struct dp_power *power, bool flip);
+
+/**
+ * dp_power_deinit() - turn off regulators and gpios.
+ *
+ * @power: instance of power module
+ * return: 0 for success
+ *
+ * This API turns off power and regulators.
+ */
+int dp_power_deinit(struct dp_power *power);
+
+/**
+ * dp_power_clk_status() - display controller clocks status
+ *
+ * @power: instance of power module
+ * @pm_type: type of pm, core/ctrl/phy
+ * return: status of power clocks
+ *
+ * This API return status of DP clocks
+ */
+
+int dp_power_clk_status(struct dp_power *dp_power, enum dp_pm_type pm_type);
+
+/**
+ * dp_power_clk_enable() - enable display controller clocks
+ *
+ * @power: instance of power module
+ * @pm_type: type of pm, core/ctrl/phy
+ * @enable: enables or disables
+ * return: pointer to allocated power module data
+ *
+ * This API will call setrate and enable for DP clocks
+ */
+
+int dp_power_clk_enable(struct dp_power *power, enum dp_pm_type pm_type,
+				bool enable);
+
+/**
+ * dp_power_client_init() - initialize clock and regulator modules
+ *
+ * @power: instance of power module
+ * return: 0 for success, error for failure.
+ *
+ * This API will configure the DisplayPort's clocks and regulator
+ * modules.
+ */
+int dp_power_client_init(struct dp_power *power);
+
+/**
+ * dp_power_clinet_deinit() - de-initialize clock and regulator modules
+ *
+ * @power: instance of power module
+ * return: 0 for success, error for failure.
+ *
+ * This API will de-initialize the DisplayPort's clocks and regulator
+ * modueles.
+ */
+void dp_power_client_deinit(struct dp_power *power);
+
+/**
+ * dp_power_get() - configure and get the DisplayPort power module data
+ *
+ * @parser: instance of parser module
+ * return: pointer to allocated power module data
+ *
+ * This API will configure the DisplayPort's power module and provides
+ * methods to be called by the client to configure the power related
+ * modueles.
+ */
+struct dp_power *dp_power_get(struct dp_parser *parser);
+
+#endif /* _DP_POWER_H_ */