Since the raspberrypi-hwmon driver is tied to the VC4 firmware instead of
particular hardware its registration should be in the firmware driver.
Signed-off-by: Stefan Wahren <stefan.wahren@xxxxxxxx>
---
drivers/firmware/raspberrypi.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/drivers/firmware/raspberrypi.c b/drivers/firmware/raspberrypi.c
index 6692888f..0602626 100644
--- a/drivers/firmware/raspberrypi.c
+++ b/drivers/firmware/raspberrypi.c
@@ -21,6 +21,8 @@
#define MBOX_DATA28(msg) ((msg) & ~0xf)
#define MBOX_CHAN_PROPERTY 8
+static struct platform_device *rpi_hwmon;
+
struct rpi_firmware {
struct mbox_client cl;
struct mbox_chan *chan; /* The property channel. */
@@ -183,6 +185,20 @@ rpi_firmware_print_firmware_revision(struct rpi_firmware *fw)
}
}
+static void
+rpi_register_hwmon_driver(struct device *dev, struct rpi_firmware *fw)
+{
+ u32 packet;
+ int ret = rpi_firmware_property(fw, RPI_FIRMWARE_GET_THROTTLED,
+ &packet, sizeof(packet));
+
+ if (ret)
+ return;
+
+ rpi_hwmon = platform_device_register_data(dev, "raspberrypi-hwmon",
+ -1, NULL, 0);
+}
+
static int rpi_firmware_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
@@ -209,6 +225,7 @@ static int rpi_firmware_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, fw);
rpi_firmware_print_firmware_revision(fw);
+ rpi_register_hwmon_driver(dev, fw);
return 0;
}
@@ -217,6 +234,8 @@ static int rpi_firmware_remove(struct platform_device *pdev)
{
struct rpi_firmware *fw = platform_get_drvdata(pdev);
+ platform_device_unregister(rpi_hwmon);
+ rpi_hwmon = NULL;
mbox_free_channel(fw->chan);
return 0;
--
2.7.4
--
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