kernel/wr-nic-eth: bugfix: leave irq inactive at remove time

This is not really a problem if we have edge-triggered interrupts as input to the Gennum, but will lock the computer on unload when experimenting with level-triggered interrupts.

kernel/wr-nic-eth: bugfix: leave irq inactive at remove time
This is not really a problem if we have edge-triggered interrupts as input to the Gennum, but will lock the computer on unload when experimenting with level-triggered interrupts.
1db30813 · Tomasz Wlostowski · Alessandro Rubini · 4d8935ed · 1db30813
Commit 1db30813 authored Oct 02, 2012 by Tomasz Wlostowski Committed by Alessandro Rubini Oct 02, 2012
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wr-nic-eth.c kernel/wr-nic-eth.c +3 -1

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--- a/kernel/wr-nic-eth.c
+++ b/kernel/wr-nic-eth.c
@@ -107,7 +107,9 @@ static void wrn_vic_exit(struct fmc_device *fmc)
 	struct VIC_WB *vic = (typeof(vic))drvdata->vic_base;

 	writel(0xff, &vic->IDR);
-	writel(0, &vic->CTL);
+
+	/* Interrupt line is !POL when EN == 0, so leave polarity bit on */
+	writel(VIC_CTL_POL, &vic->CTL);
 }

 struct wrn_core {