diff options
| author |   Stefan Wahren <stefan.wahren@i2se.com> | 2018-05-25 21:24:36 +0200 |
|---|---|---|
| committer |   Florian Fainelli <f.fainelli@gmail.com> | 2018-07-09 10:47:28 -0700 |
| commit | 70eea1bbb5561154e62b322904b685acb0e52d3e (patch) | |
| tree | d4354787ddb138fed51fc225bcc3e4891cbbc404 /drivers/firmware/raspberrypi.c | |
| parent | hwmon: Add support for RPi voltage sensor (diff) | |
| download | wireguard-linux-70eea1bbb5561154e62b322904b685acb0e52d3e.tar.xz wireguard-linux-70eea1bbb5561154e62b322904b685acb0e52d3e.zip | |
firmware: raspberrypi: Register hwmon driver
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@i2se.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Diffstat (limited to 'drivers/firmware/raspberrypi.c')
| -rw-r--r-- | drivers/firmware/raspberrypi.c | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/drivers/firmware/raspberrypi.c b/drivers/firmware/raspberrypi.c index 6692888f04cf..0602626bf72d 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; |