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Subject[PATCH v10 07/12] intel_mid: Added custom device_handler support
Date
From: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>

This patch provides a means to add custom handler for
SFI devices. If you set device_handler as NULL in
device_id table standard SFI device handler will be used.
If its not NULL custom handler will be called.

Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
---
arch/x86/platform/intel-mid/intel-mid.c | 74 ++++++++++++++++++---------------
1 file changed, 40 insertions(+), 34 deletions(-)

diff --git a/arch/x86/platform/intel-mid/intel-mid.c b/arch/x86/platform/intel-mid/intel-mid.c
index d24c729..7bfd784 100644
--- a/arch/x86/platform/intel-mid/intel-mid.c
+++ b/arch/x86/platform/intel-mid/intel-mid.c
@@ -396,6 +396,9 @@ struct devs_id {
u8 type;
u8 delay;
void *(*get_platform_data)(void *info);
+ /* Custom handler for devices */
+ void (*device_handler)(struct sfi_device_table_entry *pentry,
+ struct devs_id *dev);
};

/* the offset for the mapping of global gpio pin to irq */
@@ -690,28 +693,27 @@ static void *tc35876x_platform_data(void *data)
}

static const struct devs_id __initconst device_ids[] = {
- {"bma023", SFI_DEV_TYPE_I2C, 1, &no_platform_data},
- {"pmic_gpio", SFI_DEV_TYPE_SPI, 1, &pmic_gpio_platform_data},
- {"pmic_gpio", SFI_DEV_TYPE_IPC, 1, &pmic_gpio_platform_data},
- {"spi_max3111", SFI_DEV_TYPE_SPI, 0, &max3111_platform_data},
- {"i2c_max7315", SFI_DEV_TYPE_I2C, 1, &max7315_platform_data},
- {"i2c_max7315_2", SFI_DEV_TYPE_I2C, 1, &max7315_platform_data},
- {"tca6416", SFI_DEV_TYPE_I2C, 1, &tca6416_platform_data},
- {"emc1403", SFI_DEV_TYPE_I2C, 1, &emc1403_platform_data},
- {"i2c_accel", SFI_DEV_TYPE_I2C, 0, &lis331dl_platform_data},
- {"pmic_audio", SFI_DEV_TYPE_IPC, 1, &no_platform_data},
- {"mpu3050", SFI_DEV_TYPE_I2C, 1, &mpu3050_platform_data},
- {"i2c_disp_brig", SFI_DEV_TYPE_I2C, 0, &tc35876x_platform_data},
+ {"bma023", SFI_DEV_TYPE_I2C, 1, &no_platform_data, NULL},
+ {"pmic_gpio", SFI_DEV_TYPE_SPI, 1, &pmic_gpio_platform_data, NULL},
+ {"pmic_gpio", SFI_DEV_TYPE_IPC, 1, &pmic_gpio_platform_data, NULL},
+ {"spi_max3111", SFI_DEV_TYPE_SPI, 0, &max3111_platform_data, NULL},
+ {"i2c_max7315", SFI_DEV_TYPE_I2C, 1, &max7315_platform_data, NULL},
+ {"i2c_max7315_2", SFI_DEV_TYPE_I2C, 1, &max7315_platform_data, NULL},
+ {"tca6416", SFI_DEV_TYPE_I2C, 1, &tca6416_platform_data, NULL},
+ {"emc1403", SFI_DEV_TYPE_I2C, 1, &emc1403_platform_data, NULL},
+ {"i2c_accel", SFI_DEV_TYPE_I2C, 0, &lis331dl_platform_data, NULL},
+ {"pmic_audio", SFI_DEV_TYPE_IPC, 1, &no_platform_data, NULL},
+ {"mpu3050", SFI_DEV_TYPE_I2C, 1, &mpu3050_platform_data, NULL},
+ {"i2c_disp_brig", SFI_DEV_TYPE_I2C, 0, &tc35876x_platform_data, NULL},

/* MSIC subdevices */
- {"msic_battery", SFI_DEV_TYPE_IPC, 1, &msic_battery_platform_data},
- {"msic_gpio", SFI_DEV_TYPE_IPC, 1, &msic_gpio_platform_data},
- {"msic_audio", SFI_DEV_TYPE_IPC, 1, &msic_audio_platform_data},
- {"msic_power_btn", SFI_DEV_TYPE_IPC, 1, &msic_power_btn_platform_data},
- {"msic_ocd", SFI_DEV_TYPE_IPC, 1, &msic_ocd_platform_data},
- {"msic_thermal", SFI_DEV_TYPE_IPC, 1, &msic_thermal_platform_data},
-
- {},
+ {"msic_battery", SFI_DEV_TYPE_IPC, 1, &msic_battery_platform_data, NULL},
+ {"msic_gpio", SFI_DEV_TYPE_IPC, 1, &msic_gpio_platform_data, NULL},
+ {"msic_audio", SFI_DEV_TYPE_IPC, 1, &msic_audio_platform_data, NULL},
+ {"msic_power_btn", SFI_DEV_TYPE_IPC, 1, &msic_power_btn_platform_data, NULL},
+ {"msic_ocd", SFI_DEV_TYPE_IPC, 1, &msic_ocd_platform_data, NULL},
+ {"msic_thermal", SFI_DEV_TYPE_IPC, 1, &msic_thermal_platform_data, NULL},
+ { 0 }
};

#define MAX_IPCDEVS 24
@@ -965,20 +967,24 @@ static int __init sfi_parse_devs(struct sfi_table_header *table)
if ((dev == NULL) || (dev->get_platform_data == NULL))
continue;

- switch (pentry->type) {
- case SFI_DEV_TYPE_IPC:
- sfi_handle_ipc_dev(pentry, dev);
- break;
- case SFI_DEV_TYPE_SPI:
- sfi_handle_spi_dev(pentry, dev);
- break;
- case SFI_DEV_TYPE_I2C:
- sfi_handle_i2c_dev(pentry, dev);
- break;
- case SFI_DEV_TYPE_UART:
- case SFI_DEV_TYPE_HSI:
- default:
- ;
+ if (dev->device_handler) {
+ dev->device_handler(pentry, dev);
+ } else {
+ switch (pentry->type) {
+ case SFI_DEV_TYPE_IPC:
+ sfi_handle_ipc_dev(pentry, dev);
+ break;
+ case SFI_DEV_TYPE_SPI:
+ sfi_handle_spi_dev(pentry, dev);
+ break;
+ case SFI_DEV_TYPE_I2C:
+ sfi_handle_i2c_dev(pentry, dev);
+ break;
+ case SFI_DEV_TYPE_UART:
+ case SFI_DEV_TYPE_HSI:
+ default:
+ break;
+ }
}
}
return 0;
--
1.8.4.rc3


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