[ARM] 5088/3: pxa2xx: add pxa2xx_set_spi_info to register pxa2xx-spi platform devices
Add a function to dynamically allocate and register pxa2xx-spi platform
devices, to be used by PXA2xx and PXA3xx based systems. Switch pcm027 and
lubbock to use it.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@pengutronix.de>
Acked-by: Eric Miao <eric.miao@marvell.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mach-pxa/Kconfig b/arch/arm/mach-pxa/Kconfig
index 914bb33..ef7271e 100644
--- a/arch/arm/mach-pxa/Kconfig
+++ b/arch/arm/mach-pxa/Kconfig
@@ -139,6 +139,7 @@
bool "Phytec phyCORE-PXA270 CPU module (PCM-027)"
select PXA27x
select IWMMXT
+ select PXA_SSP
endmenu
diff --git a/arch/arm/mach-pxa/devices.c b/arch/arm/mach-pxa/devices.c
index a6f2390..abc161d 100644
--- a/arch/arm/mach-pxa/devices.c
+++ b/arch/arm/mach-pxa/devices.c
@@ -13,6 +13,7 @@
#include <asm/arch/mfp-pxa27x.h>
#include <asm/arch/ohci.h>
#include <asm/arch/pxa27x_keypad.h>
+#include <asm/arch/pxa2xx_spi.h>
#include <asm/arch/camera.h>
#include <asm/arch/audio.h>
@@ -831,3 +832,20 @@
}
#endif /* CONFIG_PXA3xx */
+
+/* pxa2xx-spi platform-device ID equals respective SSP platform-device ID + 1.
+ * See comment in arch/arm/mach-pxa/ssp.c::ssp_probe() */
+void __init pxa2xx_set_spi_info(unsigned id, struct pxa2xx_spi_master *info)
+{
+ struct platform_device *pd;
+
+ pd = platform_device_alloc("pxa2xx-spi", id);
+ if (pd == NULL) {
+ printk(KERN_ERR "pxa2xx-spi: failed to allocate device id %d\n",
+ id);
+ return;
+ }
+
+ pd->dev.platform_data = info;
+ platform_device_add(pd);
+}
diff --git a/arch/arm/mach-pxa/lubbock.c b/arch/arm/mach-pxa/lubbock.c
index a3fae41..e041cce 100644
--- a/arch/arm/mach-pxa/lubbock.c
+++ b/arch/arm/mach-pxa/lubbock.c
@@ -226,14 +226,6 @@
.num_chipselect = 0,
};
-static struct platform_device pxa_ssp = {
- .name = "pxa2xx-spi",
- .id = 1,
- .dev = {
- .platform_data = &pxa_ssp_master_info,
- },
-};
-
static int lubbock_ads7846_pendown_state(void)
{
/* TS_BUSY is bit 8 in LUB_MISC_RD, but pendown is irq-only */
@@ -367,7 +359,6 @@
&smc91x_device,
&lubbock_flash_device[0],
&lubbock_flash_device[1],
- &pxa_ssp,
};
static struct pxafb_mode_info sharp_lm8v31_mode = {
@@ -501,6 +492,7 @@
lubbock_flash_data[flashboot].name = "boot-rom";
(void) platform_add_devices(devices, ARRAY_SIZE(devices));
+ pxa2xx_set_spi_info(1, &pxa_ssp_master_info);
spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
}
diff --git a/arch/arm/mach-pxa/pcm027.c b/arch/arm/mach-pxa/pcm027.c
index 3b945eb..377f3be8 100644
--- a/arch/arm/mach-pxa/pcm027.c
+++ b/arch/arm/mach-pxa/pcm027.c
@@ -24,7 +24,9 @@
#include <linux/platform_device.h>
#include <linux/mtd/physmap.h>
#include <linux/spi/spi.h>
+#include <linux/spi/max7301.h>
#include <linux/leds.h>
+
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/arch/hardware.h>
@@ -108,6 +110,32 @@
.resource = smc91x_resources,
};
+/*
+ * SPI host and devices
+ */
+static struct pxa2xx_spi_master pxa_ssp_master_info = {
+ .num_chipselect = 1,
+};
+
+static struct max7301_platform_data max7301_info = {
+ .base = -1,
+};
+
+/* bus_num must match id in pxa2xx_set_spi_info() call */
+static struct spi_board_info spi_board_info[] __initdata = {
+ {
+ .modalias = "max7301",
+ .platform_data = &max7301_info,
+ .max_speed_hz = 13000000,
+ .bus_num = 1,
+ .chip_select = 0,
+ .mode = SPI_MODE_0,
+ },
+};
+
+/*
+ * NOR flash
+ */
static struct physmap_flash_data pcm027_flash_data = {
.width = 4,
};
@@ -190,6 +218,9 @@
#ifdef CONFIG_MACH_PCM990_BASEBOARD
pcm990_baseboard_init();
#endif
+
+ pxa2xx_set_spi_info(1, &pxa_ssp_master_info);
+ spi_register_board_info(spi_board_info, ARRAY_SIZE(spi_board_info));
}
static void __init pcm027_map_io(void)