hw/arm/aspeed: Add MAX31785 Fan controllers

Add MAX31785 fan controllers in machines so that the Linux driver
populates the sysfs interface.

Firework has two MAX31785 Fan controllers at 0x52, and 0x54 on bus 9.
Witherspoon has one at 0x52 on bus 3.
Rainier has one at 0x52 on bus 7.

Signed-off-by: Maheswara Kurapati <quic_mkurapat@quicinc.com>
Signed-off-by: Jae Hyun Yoo <quic_jaehyoo@quicinc.com>
Reviewed-by: Cédric Le Goater <clg@kaod.org>
Message-Id: <20220627154703.148943-6-quic_jaehyoo@quicinc.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>

diff --git a/hw/arm/Kconfig b/hw/arm/Kconfig
index 219262a8da36977d46bdd70291510028d432c072..15fa79afd33a818e9d496c936a515aeb4f4d4648 100644 (file)
--- a/hw/arm/Kconfig
+++ b/hw/arm/Kconfig
@@ -455,6 +455,8 @@ config ASPEED_SOC
     select EMC141X
     select UNIMP
     select LED
+    select PMBUS
+    select MAX31785
 
 config MPS2
     bool

diff --git a/hw/arm/aspeed.c b/hw/arm/aspeed.c
index 74cb297dd38cbffbe8da6307a6ff63dce3aee3f3..06b31fb533e2a8c4c3366aeaa1650cd12815783f 100644 (file)
--- a/hw/arm/aspeed.c
+++ b/hw/arm/aspeed.c
@@ -582,7 +582,6 @@ static void witherspoon_bmc_i2c_init(AspeedMachineState *bmc)
     LEDState *led;
 
     /* Bus 3: TODO bmp280@77 */
-    /* Bus 3: TODO max31785@52 */
     dev = DEVICE(i2c_slave_new(TYPE_PCA9552, 0x60));
     qdev_prop_set_string(dev, "description", "pca1");
     i2c_slave_realize_and_unref(I2C_SLAVE(dev),
@@ -598,6 +597,7 @@ static void witherspoon_bmc_i2c_init(AspeedMachineState *bmc)
                               qdev_get_gpio_in(DEVICE(led), 0));
     }
     i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 3), "dps310", 0x76);
+    i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 3), "max31785", 0x52);
     i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 4), "tmp423", 0x4c);
     i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 5), "tmp423", 0x4c);
 
@@ -742,13 +742,13 @@ static void rainier_bmc_i2c_init(AspeedMachineState *bmc)
     create_pca9552(soc, 7, 0x31);
     create_pca9552(soc, 7, 0x32);
     create_pca9552(soc, 7, 0x33);
-    /* Bus 7: TODO max31785@52 */
     create_pca9552(soc, 7, 0x60);
     create_pca9552(soc, 7, 0x61);
     i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 7), "dps310", 0x76);
     /* Bus 7: TODO si7021-a20@20 */
     i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 7), TYPE_TMP105,
                      0x48);
+    i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 7), "max31785", 0x52);
     aspeed_eeprom_init(aspeed_i2c_get_bus(&soc->i2c, 7), 0x50, 64 * KiB);
     aspeed_eeprom_init(aspeed_i2c_get_bus(&soc->i2c, 7), 0x51, 64 * KiB);
 
@@ -970,6 +970,10 @@ static void qcom_dc_scm_firework_i2c_init(AspeedMachineState *bmc)
     qcom_dc_scm_bmc_i2c_init(bmc);
 
     /* Now create the Firework specific hardware */
+
+    /* I2C9 Fan Controller (MAX31785) */
+    i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 9), "max31785", 0x52);
+    i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 9), "max31785", 0x54);
 }
 
 static bool aspeed_get_mmio_exec(Object *obj, Error **errp)