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pinctrl: mvebu: Fix dove_audio1_ctrl_set function

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When setting audio1 pinmux the bits in the corresponding registers
are not cleared. This fix first clears all bits and then sets the
required bits according to the selected function.

Signed-off-by: Axel Lin <[email protected]>
Signed-off-by: Sebastian Hesselbarth <[email protected]>
Acked-by: Linus Walleij <[email protected]>
Signed-off-by: Jason Cooper <[email protected]>
This commit is contained in:
Axel Lin 2012-11-19 10:39:54 +01:00 • committed by Jason Cooper
commit 63ace077b4
1 changed files with 8 additions and 0 deletions
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8
drivers/pinctrl/mvebu/pinctrl-dove.c
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@ -234,6 +234,14 @@ static int dove_audio1_ctrl_set(struct mvebu_mpp_ctrl *ctrl,
unsigned long gmpp = readl(DOVE_MPP_GENERAL_VIRT_BASE);
unsigned long gcfg2 = readl(DOVE_GLOBAL_CONFIG_2);
/*
* clear all audio1 related bits before configure
*/
gcfg2 &= ~DOVE_TWSI_OPTION3_GPIO;
gmpp &= ~DOVE_AU1_SPDIFO_GPIO_EN;
sspc1 &= ~DOVE_SSP_ON_AU1;
mpp4 &= ~DOVE_AU1_GPIO_SEL;
if (config & BIT(0))
gcfg2 |= DOVE_TWSI_OPTION3_GPIO;
if (config & BIT(1))