GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

source/trusted-firmware/trusted-firmware-a-2.8/drivers/marvell/thermal.c

@@ -0,0 +1,54 @@
+/*
+ * Copyright (C) 2018 Marvell International Ltd.
+ *
+ * SPDX-License-Identifier:	BSD-3-Clause
+ * https://spdx.org/licenses
+ */
+
+/* Driver for thermal unit located in Marvell ARMADA 8K and compatible SoCs */
+
+#include <common/debug.h>
+#include <drivers/marvell/thermal.h>
+
+int marvell_thermal_init(struct tsen_config *tsen_cfg)
+{
+	if (tsen_cfg->tsen_ready == 1) {
+		INFO("thermal sensor is already initialized\n");
+		return 0;
+	}
+
+	if (tsen_cfg->ptr_tsen_probe == NULL) {
+		ERROR("initial thermal sensor configuration is missing\n");
+		return -1;
+	}
+
+	if (tsen_cfg->ptr_tsen_probe(tsen_cfg)) {
+		ERROR("thermal sensor initialization failed\n");
+		return -1;
+	}
+
+	VERBOSE("thermal sensor was initialized\n");
+
+	return 0;
+}
+
+int marvell_thermal_read(struct tsen_config *tsen_cfg, int *temp)
+{
+	if (temp == NULL) {
+		ERROR("NULL pointer for temperature read\n");
+		return -1;
+	}
+
+	if (tsen_cfg->ptr_tsen_read == NULL ||
+	    tsen_cfg->tsen_ready == 0) {
+		ERROR("thermal sensor was not initialized\n");
+		return -1;
+	}
+
+	if (tsen_cfg->ptr_tsen_read(tsen_cfg, temp)) {
+		ERROR("temperature read failed\n");
+		return -1;
+	}
+
+	return 0;
+}