[PATCH v7 2/2] ECI: adding platform data for ECI driver

From: tapio . vihuri
Date: Tue Feb 15 2011 - 08:12:47 EST


From: Tapio Vihuri <tapio.vihuri@xxxxxxxxx>

Gives platform data for ECI accessory input driver.

Signed-off-by: Tapio Vihuri <tapio.vihuri@xxxxxxxxx>
---
arch/x86/platform/mrst/mrst.c | 32 ++++++++++++++++++++++++++++++++
1 files changed, 32 insertions(+), 0 deletions(-)

diff --git a/arch/x86/platform/mrst/mrst.c b/arch/x86/platform/mrst/mrst.c
index ea6529e..e9cec91 100644
--- a/arch/x86/platform/mrst/mrst.c
+++ b/arch/x86/platform/mrst/mrst.c
@@ -24,6 +24,7 @@
#include <linux/platform_device.h>
#include <linux/irq.h>
#include <linux/module.h>
+#include <linux/input/eci.h>

#include <asm/setup.h>
#include <asm/mpspec_def.h>
@@ -478,6 +479,30 @@ static void __init *no_platform_data(void *info)
return NULL;
}

+/*
+ * This is just example, should be implented in platform audio driver,
+ * ie. sound/...
+ * Then audio driver can call like hsmic_event->event(hsmic_event->private, 0);
+ * to set hsmic bias off
+ */
+static struct audio_hsmic_event *hsmic_event;
+static void mrst_register_hsmic_event_cb(struct audio_hsmic_event *event)
+{
+ hsmic_event = event;
+}
+EXPORT_SYMBOL(mrst_register_hsmic_event_cb);
+
+static void *eci_platform_data_init(void *info)
+{
+ static struct eci_platform_data mrst_eci_data = {
+ .eci_rst_gpio = GPIO_ECI_RSTn,
+ .eci_sw_ctrl_gpio = GPIO_ECI_SW_CTRL,
+ .eci_int_gpio = GPIO_ECI_INT,
+ .register_hsmic_event_cb = mrst_register_hsmic_event_cb,
+ };
+ return &mrst_eci_data;
+}
+
static const struct devs_id __initconst device_ids[] = {
{"pmic_gpio", SFI_DEV_TYPE_SPI, 1, &pmic_gpio_platform_data},
{"spi_max3111", SFI_DEV_TYPE_SPI, 0, &max3111_platform_data},
@@ -487,6 +512,7 @@ static const struct devs_id __initconst device_ids[] = {
{"i2c_accel", SFI_DEV_TYPE_I2C, 0, &lis331dl_platform_data},
{"pmic_audio", SFI_DEV_TYPE_IPC, 1, &no_platform_data},
{"msic_audio", SFI_DEV_TYPE_IPC, 1, &no_platform_data},
+ {"eci_ctrl", SFI_DEV_TYPE_I2C, 0, &eci_platform_data_init},
{},
};

@@ -659,6 +685,12 @@ static void __init sfi_handle_i2c_dev(int bus, struct i2c_board_info *i2c_info)
i2c_register_board_info(bus, i2c_info, 1);
}

+static int __init mrst_eci_init(void)
+{
+ /* Turn on vprog2 */
+ return intel_scu_ipc_iowrite8(AvP_MSIC_VPROG2, AvP_MSIC_VPROG2_2V5_ON);
+}
+device_initcall(mrst_eci_init);

static int __init sfi_parse_devs(struct sfi_table_header *table)
{
--
1.6.5

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