H4 support for tsc210x

H4 board support now lists its tsc210x touchscreen/sensor/codec chip.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>

diff --git a/arch/arm/mach-omap2/board-h4.c b/arch/arm/mach-omap2/board-h4.c
index cacfab966d0a7971b9f3cc6edf250e6cc517b6fb..a4defbf7a59a444262acd39725c777c32b9601ff 100644 (file)
--- a/arch/arm/mach-omap2/board-h4.c
+++ b/arch/arm/mach-omap2/board-h4.c
@@ -22,6 +22,8 @@
 #include <linux/err.h>
 #include <linux/clk.h>
 #include <linux/i2c.h>
+#include <linux/spi/spi.h>
+#include <linux/spi/tsc210x.h>
 
 #include <asm/hardware.h>
 #include <asm/mach-types.h>
@@ -418,6 +420,33 @@ static struct omap_usb_config h4_usb_config __initdata = {
 #endif
 };
 
+/* ----------------------------------------------------------------------- */
+
+static struct tsc210x_config tsc_platform_data = {
+       .use_internal           = 1,
+       .monitor                = TSC_VBAT | TSC_TEMP,
+       /* REVISIT temp calibration data -- board-specific; from EEPROM? */
+       .mclk                   = "sys_clkout",
+};
+
+static struct spi_board_info h4_spi_board_info[] __initdata = {
+       {
+               .modalias       = "tsc2101",
+               .bus_num        = 1,
+               .chip_select    = 0,
+               .mode           = SPI_MODE_1,
+               .irq            = OMAP_GPIO_IRQ(93),
+               .max_speed_hz   = 16000000,
+               .platform_data  = &tsc_platform_data,
+       },
+
+       /* nCS1 -- to lcd board, but unused
+        * nCS2 -- to WLAN/miniPCI
+        */
+};
+
+/* ----------------------------------------------------------------------- */
+
 static struct omap_board_config_kernel h4_config[] __initdata = {
        { OMAP_TAG_UART,        &h4_uart_config },
        { OMAP_TAG_MMC,         &h4_mmc_config },
@@ -550,6 +579,28 @@ static void __init omap_h4_init(void)
        tusb_evm_setup();
 #endif
 
+       /* defaults seem ok for:
+        * omap_cfg_reg(U18_24XX_SPI1_SCK);
+        * omap_cfg_reg(V20_24XX_SPI1_MOSI);
+        * omap_cfg_reg(T18_24XX_SPI1_MISO);
+        * omap_cfg_reg(U19_24XX_SPI1_NCS0);
+        */
+
+       /* TSC2101 */
+       omap_cfg_reg(P20_24XX_GPIO93);
+       gpio_request(93, "tsc_irq");
+       gpio_direction_input(93);
+
+       omap_cfg_reg(W14_24XX_SYS_CLKOUT);      /* mclk */
+       /* defaults seem ok for:
+        * omap_cfg_reg(Y15_EAC_AC_SCLK);       // bclk
+        * omap_cfg_reg(R14_EAC_AC_FS);
+        * omap_cfg_reg(V15_EAC_AC_DOUT);
+        * omap_cfg_reg(W15_EAC_AC_DIN);
+        */
+
+       spi_register_board_info(h4_spi_board_info,
+                               ARRAY_SIZE(h4_spi_board_info));
 }
 
 static void __init omap_h4_map_io(void)