ALSA: snd-atmel-ac97c: cleanup registers when removing driver

This patch will set the channel A and control channel mode register to zero before disabling the AC97C peripheral. Signed-off-by: Hans-Christian Egtvedt <[email protected]> Signed-off-by: Takashi Iwai <[email protected]>
3drobotics · Apr 6, 2009 · bd74a18 · bd74a18
1 parent 81baf3a
commit bd74a18
Showing 1 changed file with 4 additions and 0 deletions.
diff --git a/sound/atmel/ac97c.c b/sound/atmel/ac97c.c
@@ -969,6 +969,10 @@ static int __devexit atmel_ac97c_remove(struct platform_device *pdev)
 	if (gpio_is_valid(chip->reset_pin))
 		gpio_free(chip->reset_pin);
 
+	ac97c_writel(chip, CAMR, 0);
+	ac97c_writel(chip, COMR, 0);
+	ac97c_writel(chip, MR,   0);
+
 	clk_disable(chip->pclk);
 	clk_put(chip->pclk);
 	iounmap(chip->regs);