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From c6fb61edf283f255c3763a57366bb89bb36ad79c Mon Sep 17 00:00:00 2001
From: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Date: Fri, 8 Nov 2013 17:57:32 +0400
Subject: [PATCH] collie: add support for IrDA transceiver
Collie has onboard IrDA transceiver controlled via active-low gpio. Add
corresponding platform data.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
---
arch/arm/mach-sa1100/collie.c | 33 ++++++++++++++++++++++++++++++
arch/arm/mach-sa1100/include/mach/collie.h | 2 +-
2 files changed, 34 insertions(+), 1 deletion(-)
diff --git a/arch/arm/mach-sa1100/collie.c b/arch/arm/mach-sa1100/collie.c
index 2349dee..1b9473d 100644
--- a/arch/arm/mach-sa1100/collie.c
+++ b/arch/arm/mach-sa1100/collie.c
@@ -41,6 +41,7 @@
#include <asm/mach/arch.h>
#include <asm/mach/flash.h>
#include <asm/mach/map.h>
+#include <asm/mach/irda.h>
#include <asm/hardware/scoop.h>
#include <asm/mach/sharpsl_param.h>
@@ -94,6 +95,37 @@ static struct mcp_plat_data collie_mcp_data = {
.codec_pdata = &collie_ucb1x00_data,
};
+int collie_ir_startup(struct device *dev)
+{
+ int rc = gpio_request(COLLIE_GPIO_IR_ON, "IrDA");
+ if (rc)
+ return rc;
+ rc = gpio_direction_output(COLLIE_GPIO_IR_ON, 1);
+
+ if (!rc)
+ return 0;
+
+ gpio_free(COLLIE_GPIO_IR_ON);
+ return rc;
+}
+
+void collie_ir_shutdown(struct device *dev)
+{
+ gpio_free(COLLIE_GPIO_IR_ON);
+}
+
+static int collie_ir_set_power(struct device *dev, unsigned int state)
+{
+ gpio_set_value(COLLIE_GPIO_IR_ON, !state);
+ return 0;
+}
+
+static struct irda_platform_data collie_ir_data = {
+ .startup = collie_ir_startup,
+ .shutdown = collie_ir_shutdown,
+ .set_power = collie_ir_set_power,
+};
+
/*
* Collie AC IN
*/
@@ -323,6 +355,7 @@ static void __init collie_init(void)
sa11x0_register_mtd(&collie_flash_data, collie_flash_resources,
ARRAY_SIZE(collie_flash_resources));
sa11x0_register_mcp(&collie_mcp_data);
+ sa11x0_register_irda(&collie_ir_data);
sharpsl_save_param();
}
diff --git a/arch/arm/mach-sa1100/include/mach/collie.h b/arch/arm/mach-sa1100/include/mach/collie.h
index f33679d..0ef22f9 100644
--- a/arch/arm/mach-sa1100/include/mach/collie.h
+++ b/arch/arm/mach-sa1100/include/mach/collie.h
@@ -78,7 +78,7 @@ extern void locomolcd_power(int on);
#define COLLIE_TC35143_GPIO_VERSION0 UCB_IO_0
#define COLLIE_TC35143_GPIO_TBL_CHK UCB_IO_1
#define COLLIE_TC35143_GPIO_VPEN_ON UCB_IO_2
-#define COLLIE_TC35143_GPIO_IR_ON UCB_IO_3
+#define COLLIE_GPIO_IR_ON (COLLIE_TC35143_GPIO_BASE + 3)
#define COLLIE_TC35143_GPIO_AMP_ON UCB_IO_4
#define COLLIE_TC35143_GPIO_VERSION1 UCB_IO_5
#define COLLIE_TC35143_GPIO_FS8KLPF UCB_IO_5
--
1.8.4.rc3
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