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authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2010-10-29 12:56:07 +0400
committerUwe Kleine-König <u.kleine-koenig@pengutronix.de>2010-11-17 10:58:13 +0300
commitae71a5622253708aa08df231e6415fe7a1e96b10 (patch)
tree4ff6463e9ab3392af9aa5aeb5b0016ec02da2bdb /arch/arm/plat-mxc
parentd96801b2ca47cfeddadede7a1998e1fe0eab095c (diff)
downloadlinux-ae71a5622253708aa08df231e6415fe7a1e96b10.tar.xz
ARM: imx: dynamically allocate mxc_w1 devices
Currently there is no platform data used in the driver. In case this changes NULL is passed unused to the soc specific functions. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Diffstat (limited to 'arch/arm/plat-mxc')
-rw-r--r--arch/arm/plat-mxc/devices/Kconfig3
-rw-r--r--arch/arm/plat-mxc/devices/Makefile1
-rw-r--r--arch/arm/plat-mxc/devices/platform-mxc_w1.c50
-rw-r--r--arch/arm/plat-mxc/include/mach/devices-common.h6
4 files changed, 60 insertions, 0 deletions
diff --git a/arch/arm/plat-mxc/devices/Kconfig b/arch/arm/plat-mxc/devices/Kconfig
index 9aa6f3ea9012..fb664670c101 100644
--- a/arch/arm/plat-mxc/devices/Kconfig
+++ b/arch/arm/plat-mxc/devices/Kconfig
@@ -25,5 +25,8 @@ config IMX_HAVE_PLATFORM_IMX_UART
config IMX_HAVE_PLATFORM_MXC_NAND
bool
+config IMX_HAVE_PLATFORM_MXC_W1
+ bool
+
config IMX_HAVE_PLATFORM_SPI_IMX
bool
diff --git a/arch/arm/plat-mxc/devices/Makefile b/arch/arm/plat-mxc/devices/Makefile
index 45aefeb283ba..1d7d39201622 100644
--- a/arch/arm/plat-mxc/devices/Makefile
+++ b/arch/arm/plat-mxc/devices/Makefile
@@ -7,4 +7,5 @@ obj-$(CONFIG_IMX_HAVE_PLATFORM_IMX_I2C) += platform-imx-i2c.o
obj-$(CONFIG_IMX_HAVE_PLATFORM_IMX_SSI) += platform-imx-ssi.o
obj-$(CONFIG_IMX_HAVE_PLATFORM_IMX_UART) += platform-imx-uart.o
obj-$(CONFIG_IMX_HAVE_PLATFORM_MXC_NAND) += platform-mxc_nand.o
+obj-$(CONFIG_IMX_HAVE_PLATFORM_MXC_W1) += platform-mxc_w1.o
obj-$(CONFIG_IMX_HAVE_PLATFORM_SPI_IMX) += platform-spi_imx.o
diff --git a/arch/arm/plat-mxc/devices/platform-mxc_w1.c b/arch/arm/plat-mxc/devices/platform-mxc_w1.c
new file mode 100644
index 000000000000..1355237391fc
--- /dev/null
+++ b/arch/arm/plat-mxc/devices/platform-mxc_w1.c
@@ -0,0 +1,50 @@
+/*
+ * Copyright (C) 2010 Pengutronix
+ * Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
+ *
+ * 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 <mach/hardware.h>
+#include <mach/devices-common.h>
+
+#define imx_mxc_w1_data_entry_single(soc) \
+ { \
+ .iobase = soc ## _OWIRE_BASE_ADDR, \
+ }
+
+#ifdef CONFIG_SOC_IMX21
+const struct imx_mxc_w1_data imx21_mxc_w1_data __initconst =
+ imx_mxc_w1_data_entry_single(MX21);
+#endif /* ifdef CONFIG_SOC_IMX21 */
+
+#ifdef CONFIG_SOC_IMX27
+const struct imx_mxc_w1_data imx27_mxc_w1_data __initconst =
+ imx_mxc_w1_data_entry_single(MX27);
+#endif /* ifdef CONFIG_SOC_IMX27 */
+
+#ifdef CONFIG_ARCH_MX31
+const struct imx_mxc_w1_data imx31_mxc_w1_data __initconst =
+ imx_mxc_w1_data_entry_single(MX31);
+#endif /* ifdef CONFIG_ARCH_MX31 */
+
+#ifdef CONFIG_ARCH_MX35
+const struct imx_mxc_w1_data imx35_mxc_w1_data __initconst =
+ imx_mxc_w1_data_entry_single(MX35);
+#endif /* ifdef CONFIG_ARCH_MX35 */
+
+struct platform_device *__init imx_add_mxc_w1(
+ const struct imx_mxc_w1_data *data)
+{
+ struct resource res[] = {
+ {
+ .start = data->iobase,
+ .end = data->iobase + SZ_4K - 1,
+ .flags = IORESOURCE_MEM,
+ },
+ };
+
+ return imx_add_platform_device("mxc_w1", 0,
+ res, ARRAY_SIZE(res), NULL, 0);
+}
diff --git a/arch/arm/plat-mxc/include/mach/devices-common.h b/arch/arm/plat-mxc/include/mach/devices-common.h
index 8c6896fd1e5f..431e0ef4a832 100644
--- a/arch/arm/plat-mxc/include/mach/devices-common.h
+++ b/arch/arm/plat-mxc/include/mach/devices-common.h
@@ -99,6 +99,12 @@ struct platform_device *__init imx_add_mxc_nand(
const struct imx_mxc_nand_data *data,
const struct mxc_nand_platform_data *pdata);
+struct imx_mxc_w1_data {
+ resource_size_t iobase;
+};
+struct platform_device *__init imx_add_mxc_w1(
+ const struct imx_mxc_w1_data *data);
+
#include <mach/spi.h>
struct imx_spi_imx_data {
const char *devid;