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authorDmitry Baryshkov <dbaryshkov@gmail.com>2008-07-02 13:53:45 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2008-07-09 20:56:28 +0100
commit918dbcba4ee3f0ad7d617b3969d5016481b9ceff (patch)
treed86bc8e0a92f97631b0fd9c5b2543853dcaceaa9
parent330ff197fcdc83ba151960d78294fb37777ebe12 (diff)
[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>
-rw-r--r--arch/arm/mach-pxa/Makefile4
-rw-r--r--arch/arm/mach-pxa/pxa2xx.c46
-rw-r--r--include/asm-arm/arch-pxa/irda.h4
3 files changed, 52 insertions, 2 deletions
diff --git a/arch/arm/mach-pxa/Makefile b/arch/arm/mach-pxa/Makefile
index 02cbc3cfbe0..c4dfbe87fc4 100644
--- a/arch/arm/mach-pxa/Makefile
+++ b/arch/arm/mach-pxa/Makefile
@@ -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
diff --git a/arch/arm/mach-pxa/pxa2xx.c b/arch/arm/mach-pxa/pxa2xx.c
new file mode 100644
index 00000000000..d4f6415e841
--- /dev/null
+++ b/arch/arm/mach-pxa/pxa2xx.c
@@ -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();
+}
diff --git a/include/asm-arm/arch-pxa/irda.h b/include/asm-arm/arch-pxa/irda.h
index 99f4f423a8e..0a50c3c763d 100644
--- a/include/asm-arm/arch-pxa/irda.h
+++ b/include/asm-arm/arch-pxa/irda.h
@@ -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