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Diffstat (limited to 'arch/arm/mach-omap2/common-board-devices.c')
-rw-r--r--arch/arm/mach-omap2/common-board-devices.c80
1 files changed, 20 insertions, 60 deletions
diff --git a/arch/arm/mach-omap2/common-board-devices.c b/arch/arm/mach-omap2/common-board-devices.c
index 48daac2581b4..d246efd9f734 100644
--- a/arch/arm/mach-omap2/common-board-devices.c
+++ b/arch/arm/mach-omap2/common-board-devices.c
@@ -25,7 +25,6 @@
#include <linux/spi/ads7846.h>
#include <linux/platform_data/spi-omap2-mcspi.h>
-#include <linux/platform_data/mtd-nand-omap2.h>
#include "common.h"
#include "common-board-devices.h"
@@ -64,30 +63,36 @@ void __init omap_ads7846_init(int bus_num, int gpio_pendown, int gpio_debounce,
struct spi_board_info *spi_bi = &ads7846_spi_board_info;
int err;
- err = gpio_request_one(gpio_pendown, GPIOF_IN, "TSPenDown");
- if (err) {
- pr_err("Couldn't obtain gpio for TSPenDown: %d\n", err);
- return;
- }
+ /*
+ * If a board defines get_pendown_state() function, request the pendown
+ * GPIO and set the GPIO debounce time.
+ * If a board does not define the get_pendown_state() function, then
+ * the ads7846 driver will setup the pendown GPIO itself.
+ */
+ if (board_pdata && board_pdata->get_pendown_state) {
+ err = gpio_request_one(gpio_pendown, GPIOF_IN, "TSPenDown");
+ if (err) {
+ pr_err("Couldn't obtain gpio for TSPenDown: %d\n", err);
+ return;
+ }
+
+ if (gpio_debounce)
+ gpio_set_debounce(gpio_pendown, gpio_debounce);
- if (gpio_debounce)
- gpio_set_debounce(gpio_pendown, gpio_debounce);
+ gpio_export(gpio_pendown, 0);
+ }
spi_bi->bus_num = bus_num;
spi_bi->irq = gpio_to_irq(gpio_pendown);
+ ads7846_config.gpio_pendown = gpio_pendown;
+
if (board_pdata) {
board_pdata->gpio_pendown = gpio_pendown;
+ board_pdata->gpio_pendown_debounce = gpio_debounce;
spi_bi->platform_data = board_pdata;
- if (board_pdata->get_pendown_state)
- gpio_export(gpio_pendown, 0);
- } else {
- ads7846_config.gpio_pendown = gpio_pendown;
}
- if (!board_pdata || (board_pdata && !board_pdata->get_pendown_state))
- gpio_free(gpio_pendown);
-
spi_register_board_info(&ads7846_spi_board_info, 1);
}
#else
@@ -96,48 +101,3 @@ void __init omap_ads7846_init(int bus_num, int gpio_pendown, int gpio_debounce,
{
}
#endif
-
-#if defined(CONFIG_MTD_NAND_OMAP2) || defined(CONFIG_MTD_NAND_OMAP2_MODULE)
-static struct omap_nand_platform_data nand_data;
-
-void __init omap_nand_flash_init(int options, struct mtd_partition *parts,
- int nr_parts)
-{
- u8 cs = 0;
- u8 nandcs = GPMC_CS_NUM + 1;
-
- /* find out the chip-select on which NAND exists */
- while (cs < GPMC_CS_NUM) {
- u32 ret = 0;
- ret = gpmc_cs_read_reg(cs, GPMC_CS_CONFIG1);
-
- if ((ret & 0xC00) == 0x800) {
- printk(KERN_INFO "Found NAND on CS%d\n", cs);
- if (nandcs > GPMC_CS_NUM)
- nandcs = cs;
- }
- cs++;
- }
-
- if (nandcs > GPMC_CS_NUM) {
- pr_info("NAND: Unable to find configuration in GPMC\n");
- return;
- }
-
- if (nandcs < GPMC_CS_NUM) {
- nand_data.cs = nandcs;
- nand_data.parts = parts;
- nand_data.nr_parts = nr_parts;
- nand_data.devsize = options;
-
- printk(KERN_INFO "Registering NAND on CS%d\n", nandcs);
- if (gpmc_nand_init(&nand_data) < 0)
- printk(KERN_ERR "Unable to register NAND device\n");
- }
-}
-#else
-void __init omap_nand_flash_init(int options, struct mtd_partition *parts,
- int nr_parts)
-{
-}
-#endif
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