[PATCH v2 3/4] thermal: add sandbox driver

[Robert Marko]

Provide a simple sandbox driver for the thermal uclass.
It simply registers and returns 100 degrees C if requested.

Signed-off-by: Robert Marko <robert.marko at sartura.hr>
---
 arch/sandbox/dts/sandbox.dtsi     |  4 ++++
 arch/sandbox/dts/test.dts         |  4 ++++
 configs/sandbox_defconfig         |  2 ++
 drivers/thermal/Makefile          |  1 +
 drivers/thermal/thermal_sandbox.c | 36 +++++++++++++++++++++++++++++++
 5 files changed, 47 insertions(+)
 create mode 100644 drivers/thermal/thermal_sandbox.c

diff --git a/arch/sandbox/dts/sandbox.dtsi b/arch/sandbox/dts/sandbox.dtsi
index aa22b8765c..c24aee1d05 100644
--- a/arch/sandbox/dts/sandbox.dtsi
+++ b/arch/sandbox/dts/sandbox.dtsi
@@ -426,6 +426,10 @@
 	sandbox_tee {
 		compatible = "sandbox,tee";
 	};
+
+	thermal {
+		compatible = "sandbox,thermal";
+	};
 };
 
 &cros_ec {
diff --git a/arch/sandbox/dts/test.dts b/arch/sandbox/dts/test.dts
index d1a8cc7bfb..f002233064 100644
--- a/arch/sandbox/dts/test.dts
+++ b/arch/sandbox/dts/test.dts
@@ -1668,6 +1668,10 @@
 			compatible = "sandbox,regmap_test";
 		};
 	};
+
+	thermal {
+		compatible = "sandbox,thermal";
+	};
 };
 
 #include "sandbox_pmic.dtsi"
diff --git a/configs/sandbox_defconfig b/configs/sandbox_defconfig
index eba7bcbb48..d4965248d4 100644
--- a/configs/sandbox_defconfig
+++ b/configs/sandbox_defconfig
@@ -77,6 +77,7 @@ CONFIG_CMD_PCI=y
 CONFIG_CMD_READ=y
 CONFIG_CMD_REMOTEPROC=y
 CONFIG_CMD_SPI=y
+CONFIG_CMD_TEMPERATURE=y
 CONFIG_CMD_USB=y
 CONFIG_CMD_AXI=y
 CONFIG_CMD_SETEXPR_FMT=y
@@ -282,6 +283,7 @@ CONFIG_SYSINFO=y
 CONFIG_SYSINFO_SANDBOX=y
 CONFIG_SYSINFO_GPIO=y
 CONFIG_SYSRESET=y
+CONFIG_DM_THERMAL=y
 CONFIG_TIMER=y
 CONFIG_TIMER_EARLY=y
 CONFIG_SANDBOX_TIMER=y
diff --git a/drivers/thermal/Makefile b/drivers/thermal/Makefile
index 6dda62bcd1..f2ee1df394 100644
--- a/drivers/thermal/Makefile
+++ b/drivers/thermal/Makefile
@@ -4,6 +4,7 @@
 # Author: Nitin Garg <nitin.garg at freescale.com>
 
 obj-$(CONFIG_DM_THERMAL) += thermal-uclass.o
+obj-$(CONFIG_SANDBOX) += thermal_sandbox.o
 obj-$(CONFIG_IMX_THERMAL) += imx_thermal.o
 obj-$(CONFIG_IMX_SCU_THERMAL) += imx_scu_thermal.o
 obj-$(CONFIG_SPARX5_THERMAL) += sparx5-temp.o
diff --git a/drivers/thermal/thermal_sandbox.c b/drivers/thermal/thermal_sandbox.c
new file mode 100644
index 0000000000..acc364feb0
--- /dev/null
+++ b/drivers/thermal/thermal_sandbox.c
@@ -0,0 +1,36 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * Copyright (c) 2022 Sartura Ltd.
+ * Written by Robert Marko <robert.marko at sartura.hr>
+ *
+ * Sandbox driver for the thermal uclass.
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <thermal.h>
+
+int sandbox_thermal_get_temp(struct udevice *dev, int *temp)
+{
+	/* Simply return 100°C */
+	*temp = 100;
+
+	return 0;
+}
+
+static const struct dm_thermal_ops sandbox_thermal_ops = {
+	.get_temp = sandbox_thermal_get_temp,
+};
+
+static const struct udevice_id sandbox_thermal_ids[] = {
+	{ .compatible = "sandbox,thermal" },
+	{ }
+};
+
+U_BOOT_DRIVER(thermal_sandbox) = {
+	.name		= "thermal-sandbox",
+	.id		= UCLASS_THERMAL,
+	.of_match	= sandbox_thermal_ids,
+	.ops		= &sandbox_thermal_ops,
+	.flags		= DM_FLAG_PRE_RELOC,
+};
-- 
2.37.1