upstream: [media] nuvoton-cir: Activate PNP device when probing

On certain motherboards (mainly Intel NUC series) bios keeps the
Nuvoton CIR device disabled at boot.

This patch adds a call to kernel PNP layer to activate the device if it
is not already activated. This will improve the chances of the PNP probe
actually succeeding on Intel NUC platforms.

Signed-off-by: Antti Seppälä <a.seppala@gmail.com>
Cc: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

diff --git a/drivers/media/rc/nuvoton-cir.c b/drivers/media/rc/nuvoton-cir.c
index b41e52e..b81325d 100644 (file)
--- a/drivers/media/rc/nuvoton-cir.c
+++ b/drivers/media/rc/nuvoton-cir.c
@@ -985,6 +985,12 @@ static int nvt_probe(struct pnp_dev *pdev, const struct pnp_device_id *dev_id)
                goto exit_free_dev_rdev;
 
        ret = -ENODEV;
+       /* activate pnp device */
+       if (pnp_activate_dev(pdev) < 0) {
+               dev_err(&pdev->dev, "Could not activate PNP device!\n");
+               goto exit_free_dev_rdev;
+       }
+
        /* validate pnp resources */
        if (!pnp_port_valid(pdev, 0) ||
            pnp_port_len(pdev, 0) < CIR_IOREG_LENGTH) {