test/avocado/machine_aspeed.py: Add I2C tests to ast2600-evb

Create a named I2C temperature sensor device on the command line, instantiate device from Linux since it is not part of the device tree, and check the temperature is correctly reported under sysfs. Signed-off-by: Cédric Le Goater <[email protected]>
dreddy · Jun 22, 2022 · 61cf757 · 61cf757
1 parent 7a7308e
commit 61cf757
Showing 1 changed file with 13 additions and 0 deletions.
diff --git a/tests/avocado/machine_aspeed.py b/tests/avocado/machine_aspeed.py
@@ -147,5 +147,18 @@ def test_arm_ast2600_evb_builroot(self):
         image_path = self.fetch_asset(image_url, asset_hash=image_hash,
                                       algorithm='sha256')
 
+        self.vm.add_args('-device',
+                         'tmp105,bus=aspeed.i2c.bus.3,address=0x4d,id=tmp-test');
         self.do_test_arm_aspeed_buidroot_start(image_path, '0xf00')
+
+        exec_command_and_wait_for_pattern(self,
+             'echo lm75 0x4d > /sys/class/i2c-dev/i2c-3/device/new_device',
+             'i2c i2c-3: new_device: Instantiated device lm75 at 0x4d');
+        exec_command_and_wait_for_pattern(self,
+                             'cat /sys/class/hwmon/hwmon0/temp1_input', '0')
+        self.vm.command('qom-set', path='/machine/peripheral/tmp-test',
+                        property='temperature', value=18000);
+        exec_command_and_wait_for_pattern(self,
+                             'cat /sys/class/hwmon/hwmon0/temp1_input', '18000')
+
         self.do_test_arm_aspeed_buidroot_poweroff()