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[ARM] 5145/1: PXA2xx: provide api to control IrDA pins state 

Provide a set of functions to control state of pins dedicated to IrDA.

Signed-off-by: Dmitry Baryshkov <dbaryshkov@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Dmitry Baryshkov 2008-07-02 13:53:45 +01:00 committed by Russell King
parent 330ff197fc
commit 918dbcba4e
3 changed files with 52 additions and 2 deletions
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4
arch/arm/mach-pxa/Makefile
View File

@ -13,8 +13,8 @@ obj-$(CONFIG_PXA_SSP) += ssp.o
obj-$(CONFIG_PXA_PWM) += pwm.o
# SoC-specific code
obj-$(CONFIG_PXA25x) += mfp-pxa2xx.o pxa25x.o
obj-$(CONFIG_PXA27x) += mfp-pxa2xx.o pxa27x.o
obj-$(CONFIG_PXA25x) += mfp-pxa2xx.o pxa2xx.o pxa25x.o
obj-$(CONFIG_PXA27x) += mfp-pxa2xx.o pxa2xx.o pxa27x.o
obj-$(CONFIG_PXA3xx) += mfp-pxa3xx.o pxa3xx.o smemc.o
obj-$(CONFIG_CPU_PXA300) += pxa300.o
obj-$(CONFIG_CPU_PXA320) += pxa320.o

46
arch/arm/mach-pxa/pxa2xx.c Normal file
View File

@ -0,0 +1,46 @@
/*
* linux/arch/arm/mach-pxa/pxa2xx.c
*
* code specific to pxa2xx
*
* Copyright (C) 2008 Dmitry Baryshkov
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/device.h>
#include <asm/arch/mfp-pxa2xx.h>
#include <asm/arch/mfp-pxa25x.h>
#include <asm/arch/irda.h>
static unsigned long pxa2xx_mfp_fir[] = {
GPIO46_FICP_RXD,
GPIO47_FICP_TXD,
};
static unsigned long pxa2xx_mfp_sir[] = {
GPIO46_STUART_RXD,
GPIO47_STUART_TXD,
};
static unsigned long pxa2xx_mfp_off[] = {
GPIO46_GPIO | MFP_LPM_DRIVE_LOW,
GPIO47_GPIO | MFP_LPM_DRIVE_LOW,
};
void pxa2xx_transceiver_mode(struct device *dev, int mode)
{
if (mode & IR_OFF) {
pxa2xx_mfp_config(pxa2xx_mfp_off, ARRAY_SIZE(pxa2xx_mfp_off));
} else if (mode & IR_SIRMODE) {
pxa2xx_mfp_config(pxa2xx_mfp_sir, ARRAY_SIZE(pxa2xx_mfp_sir));
} else if (mode & IR_FIRMODE) {
pxa2xx_mfp_config(pxa2xx_mfp_fir, ARRAY_SIZE(pxa2xx_mfp_fir));
} else
BUG();
}

4
include/asm-arm/arch-pxa/irda.h
View File

@ -16,4 +16,8 @@ struct pxaficp_platform_data {
extern void pxa_set_ficp_info(struct pxaficp_platform_data *info);
#if defined(CONFIG_PXA25x) || defined(CONFIG_PXA27x)
void pxa2xx_transceiver_mode(struct device *dev, int mode);
#endif
#endif