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[ARM] Orion: rework MPP handling

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Instead of having board code poke directly into the MPP configuration
registers, and separately calling orion5x_gpio_set_valid_pins() to
indicate which MPP pins can be used as GPIO pins, introduce a helper
function for configuring the roles of each of the MPP pins, and have
that helper function handle gpio validity internally.

Signed-off-by: Lennert Buytenhek <buytenh@marvell.com>
Acked-by: Sylver Bruneau <sylver.bruneau@googlemail.com>
Acked-by: Russell King <linux@arm.linux.org.uk>
This commit is contained in:
Lennert Buytenhek
2008-05-10 23:25:46 +02:00
committed by Lennert Buytenhek
parent 386a048a1e
commit 19cfd5c09f
10 changed files with 376 additions and 114 deletions
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2
arch/arm/mach-orion5x/common.h
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@@ -48,7 +48,7 @@ int orion5x_pci_map_irq(struct pci_dev *dev, u8 slot, u8 pin);
* Valid GPIO pins according to MPP setup, used by machine-setup.
* (/mach-orion/gpio.c).
*/
void orion5x_gpio_set_valid_pins(u32 pins);
void orion5x_gpio_set_valid(unsigned pin, int valid);
void gpio_display(void); /* debug */
struct machine_desc;