PCI: fix ARI code to be compatible with mixed ARI/non-ARI systems

[linux-2.6-omap-h63xx.git] / drivers / hwmon / pc87427.c

diff --git a/drivers/hwmon/pc87427.c b/drivers/hwmon/pc87427.c
index d40509ad6ae6233dc0a702f9887de6f11edde5fb..7265f22ae5cd1d6762822c67756e8f1f8967d422 100644 (file)
--- a/drivers/hwmon/pc87427.c
+++ b/drivers/hwmon/pc87427.c
@@ -34,6 +34,10 @@
 #include <linux/ioport.h>
 #include <asm/io.h>
 
+static unsigned short force_id;
+module_param(force_id, ushort, 0);
+MODULE_PARM_DESC(force_id, "Override the detected device ID");
+
 static struct platform_device *pdev;
 
 #define DRVNAME "pc87427"
@@ -555,7 +559,7 @@ static int __init pc87427_find(int sioaddr, unsigned short *address)
        int i, err = 0;
 
        /* Identify device */
-       val = superio_inb(sioaddr, SIOREG_DEVID);
+       val = force_id ? force_id : superio_inb(sioaddr, SIOREG_DEVID);
        if (val != 0xf2) {      /* PC87427 */
                err = -ENODEV;
                goto exit;