X-Git-Url: http://pilppa.org/gitweb/gitweb.cgi?a=blobdiff_plain;f=arch%2Farm%2Fmach-omap1%2Fboard-h2.c;h=aa1f8af57c5346e463a33751ed4a2818f8041373;hb=e015fc7dba8f5002daa0982eb81d33cc72e68e95;hp=5079877200154364cf5d5d5921898909f53b2c2a;hpb=69d1d523cc961b6f3c2fe313694263fc81ada231;p=linux-2.6-omap-h63xx.git

diff --git a/arch/arm/mach-omap1/board-h2.c b/arch/arm/mach-omap1/board-h2.c
index 50798772001..aa1f8af57c5 100644
--- a/arch/arm/mach-omap1/board-h2.c
+++ b/arch/arm/mach-omap1/board-h2.c
@@ -20,6 +20,7 @@
  */
 
 #include <linux/kernel.h>
+#include <linux/init.h>
 #include <linux/platform_device.h>
 #include <linux/delay.h>
 #include <linux/i2c.h>
@@ -28,6 +29,10 @@
 #include <linux/mtd/partitions.h>
 #include <linux/input.h>
 #include <linux/i2c/tps65010.h>
+#include <linux/workqueue.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/tsc2101.h>
+#include <linux/clk.h>
 
 #include <asm/hardware.h>
 #include <asm/gpio.h>
@@ -37,6 +42,7 @@
 #include <asm/mach/flash.h>
 #include <asm/mach/map.h>
 
+#include <asm/arch/gpio.h>
 #include <asm/arch/gpio-switch.h>
 #include <asm/arch/mux.h>
 #include <asm/arch/tc.h>
@@ -295,6 +301,91 @@ static struct platform_device h2_lcd_device = {
 	.id		= -1,
 };
 
+struct {
+	struct clk	*mclk;
+	int		initialized;
+} h2_tsc2101;
+
+#define TSC2101_MUX_MCLK_ON	R10_1610_MCLK_ON
+#define TSC2101_MUX_MCLK_OFF	R10_1610_MCLK_OFF
+
+static void h2_lcd_dev_init(struct spi_device *tsc2101)
+{
+	/* The LCD is connected to the GPIO pins of the TSC2101, so
+	 * we have to tie them here. We can also register the LCD driver
+	 * first only here, where we know that the TSC driver is ready.
+	 */
+
+	h2_lcd_device.dev.platform_data = tsc2101;
+	platform_device_register(&h2_lcd_device);
+}
+
+static int h2_tsc2101_init(struct spi_device *spi)
+{
+	int r;
+
+	if (h2_tsc2101.initialized) {
+		printk(KERN_ERR "tsc2101: already initialized\n");
+		return -ENODEV;
+	}
+
+	/* Get the MCLK */
+	h2_tsc2101.mclk = clk_get(&spi->dev, "mclk");
+	if (IS_ERR(h2_tsc2101.mclk)) {
+		dev_err(&spi->dev, "unable to get the clock MCLK\n");
+		return PTR_ERR(h2_tsc2101.mclk);
+	}
+	if ((r = clk_set_rate(h2_tsc2101.mclk, 12000000)) < 0) {
+		dev_err(&spi->dev, "unable to set rate to the MCLK\n");
+		goto err;
+	}
+
+	omap_cfg_reg(TSC2101_MUX_MCLK_OFF);
+	omap_cfg_reg(N15_1610_UWIRE_CS1);
+
+	h2_lcd_dev_init(spi);
+
+	return 0;
+err:
+	clk_put(h2_tsc2101.mclk);
+	return r;
+}
+
+static void h2_tsc2101_cleanup(struct spi_device *spi)
+{
+	clk_put(h2_tsc2101.mclk);
+	omap_cfg_reg(TSC2101_MUX_MCLK_OFF);
+}
+
+static void h2_tsc2101_enable_mclk(struct spi_device *spi)
+{
+	omap_cfg_reg(TSC2101_MUX_MCLK_ON);
+	clk_enable(h2_tsc2101.mclk);
+}
+
+static void h2_tsc2101_disable_mclk(struct spi_device *spi)
+{
+	clk_disable(h2_tsc2101.mclk);
+	omap_cfg_reg(R10_1610_MCLK_OFF);
+}
+
+static struct tsc2101_platform_data h2_tsc2101_platform_data = {
+	.init		= h2_tsc2101_init,
+	.cleanup	= h2_tsc2101_cleanup,
+	.enable_mclk	= h2_tsc2101_enable_mclk,
+	.disable_mclk	= h2_tsc2101_disable_mclk,
+};
+
+static struct spi_board_info h2_spi_board_info[] __initdata = {
+	[0] = {
+		.modalias	= "tsc2101",
+		.bus_num	= 2,
+		.chip_select	= 1,
+		.max_speed_hz	= 16000000,
+		.platform_data	= &h2_tsc2101_platform_data,
+	},
+};
+
 static struct omap_mcbsp_reg_cfg mcbsp_regs = {
 	.spcr2 = FREE | FRST | GRST | XRST | XINTM(3),
 	.spcr1 = RINTM(3) | RRST,
@@ -336,7 +427,6 @@ static struct platform_device *h2_devices[] __initdata = {
 	&h2_smc91x_device,
 	&h2_irda_device,
 	&h2_kp_device,
-	&h2_lcd_device,
 	&h2_mcbsp1_device,
 };
 
@@ -407,6 +497,18 @@ static struct omap_board_config_kernel h2_config[] __initdata = {
 	{ OMAP_TAG_LCD,		&h2_lcd_config },
 };
 
+static struct omap_gpio_switch h2_gpio_switches[] __initdata = {
+	{
+		.name                   = "mmc_slot",
+		.gpio                   = OMAP_MPUIO(1),
+		.type                   = OMAP_GPIO_SWITCH_TYPE_COVER,
+		.debounce_rising        = 100,
+		.debounce_falling       = 0,
+		.notify                 = h2_mmc_slot_cover_handler,
+		.notify_data            = NULL,
+	},
+};
+
 #define H2_NAND_RB_GPIO_PIN	62
 
 static int h2_nand_dev_ready(struct omap_nand_platform_data *data)
@@ -450,12 +552,16 @@ static void __init h2_init(void)
 #endif
 
 	platform_add_devices(h2_devices, ARRAY_SIZE(h2_devices));
+	spi_register_board_info(h2_spi_board_info,
+				ARRAY_SIZE(h2_spi_board_info));
 	omap_board_config = h2_config;
 	omap_board_config_size = ARRAY_SIZE(h2_config);
 	omap_serial_init();
 	omap_register_i2c_bus(1, 100, h2_i2c_board_info,
 			      ARRAY_SIZE(h2_i2c_board_info));
 	h2_mmc_init();
+	omap_register_gpio_switches(h2_gpio_switches,
+				    ARRAY_SIZE(h2_gpio_switches));
 }
 
 static void __init h2_map_io(void)