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x86: superio: Add keyboard controller support to smsc_lpc47m driver

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Add an api to enable and configure the integrated keyboard controller
on SMSC LPC47m superio chipset. It also adds several macros to help
future extension.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Bin Meng
2015-08-21 00:18:51 -07:00
committed by Simon Glass
parent 348b744b7c
commit c78dfb4fd2
3 changed files with 40 additions and 5 deletions
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13
drivers/misc/smsc_lpc47m.c
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@@ -22,7 +22,7 @@ static void pnp_exit_conf_state(u16 dev)
outb(0xaa, port);
}
void lpc47m_enable_serial(u16 dev, u16 iobase, u8 irq)
void lpc47m_enable_serial(uint dev, uint iobase, uint irq)
{
pnp_enter_conf_state(dev);
pnp_set_logical_device(dev);
@@ -32,3 +32,14 @@ void lpc47m_enable_serial(u16 dev, u16 iobase, u8 irq)
pnp_set_enable(dev, 1);
pnp_exit_conf_state(dev);
}
void lpc47m_enable_kbc(uint dev, uint irq0, uint irq1)
{
pnp_enter_conf_state(dev);
pnp_set_logical_device(dev);
pnp_set_enable(dev, 0);
pnp_set_irq(dev, PNP_IDX_IRQ0, irq0);
pnp_set_irq(dev, PNP_IDX_IRQ1, irq1);
pnp_set_enable(dev, 1);
pnp_exit_conf_state(dev);
}