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intel_mid: Added custom handler for ipc devices 

Added a custom handler for medfield based ipc devices and
moved devs_id structure defintion to header file.

Signed-off-by: Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@linux.intel.com>
Link: http://lkml.kernel.org/r/1382049336-21316-9-git-send-email-david.a.cohen@linux.intel.com
Signed-off-by: David Cohen <david.a.cohen@linux.intel.com>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
hifive-unleashed-5.1
Kuppuswamy Sathyanarayanan 2013-10-17 15:35:32 -07:00 committed by H. Peter Anvin
parent 3fd79ae427
commit 49c72a0a8a
2 changed files with 66 additions and 31 deletions
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15
arch/x86/include/asm/intel-mid.h
View File

@ -18,6 +18,21 @@ extern int __init sfi_parse_mrtc(struct sfi_table_header *table);
extern int sfi_mrtc_num;
extern struct sfi_rtc_table_entry sfi_mrtc_array[];
/*
* Here defines the array of devices platform data that IAFW would export
* through SFI "DEVS" table, we use name and type to match the device and
* its platform data.
*/
struct devs_id {
char name[SFI_NAME_LEN + 1];
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);
};
/*
* Medfield is the follow-up of Moorestown, it combines two chip solution into
* one. Other than that it also added always-on and constant tsc and lapic

82
arch/x86/platform/intel-mid/intel-mid.c
View File

@ -78,6 +78,8 @@ int sfi_mtimer_num;
struct sfi_rtc_table_entry sfi_mrtc_array[SFI_MRTC_MAX];
EXPORT_SYMBOL_GPL(sfi_mrtc_array);
int sfi_mrtc_num;
static void __init ipc_device_handler(struct sfi_device_table_entry *pentry,
struct devs_id *dev);
static void intel_mid_power_off(void)
{
@ -386,21 +388,6 @@ static int get_gpio_by_name(const char *name)
return -1;
}
/*
* Here defines the array of devices platform data that IAFW would export
* through SFI "DEVS" table, we use name and type to match the device and
* its platform data.
*/
struct devs_id {
char name[SFI_NAME_LEN + 1];
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 */
#define INTEL_MID_IRQ_OFFSET 0x100
@ -695,24 +682,24 @@ static void *tc35876x_platform_data(void *data)
static const struct devs_id __initconst device_ids[] = {
{"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},
{"pmic_gpio", SFI_DEV_TYPE_IPC, 1, &pmic_gpio_platform_data, &ipc_device_handler},
{"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},
{"pmic_audio", SFI_DEV_TYPE_IPC, 1, &no_platform_data, &ipc_device_handler},
{"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, 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},
{"msic_battery", SFI_DEV_TYPE_IPC, 1, &msic_battery_platform_data, &ipc_device_handler},
{"msic_gpio", SFI_DEV_TYPE_IPC, 1, &msic_gpio_platform_data, &ipc_device_handler},
{"msic_audio", SFI_DEV_TYPE_IPC, 1, &msic_audio_platform_data, &ipc_device_handler},
{"msic_power_btn", SFI_DEV_TYPE_IPC, 1, &msic_power_btn_platform_data, &ipc_device_handler},
{"msic_ocd", SFI_DEV_TYPE_IPC, 1, &msic_ocd_platform_data, &ipc_device_handler},
{"msic_thermal", SFI_DEV_TYPE_IPC, 1, &msic_thermal_platform_data, &ipc_device_handler},
{ 0 }
};
@ -843,13 +830,6 @@ static void __init sfi_handle_ipc_dev(struct sfi_device_table_entry *pentry,
pentry->name, pentry->irq);
pdata = dev->get_platform_data(pentry);
/*
* On Medfield the platform device creation is handled by the MSIC
* MFD driver so we don't need to do it here.
*/
if (intel_mid_has_msic())
return;
pdev = platform_device_alloc(pentry->name, 0);
if (pdev == NULL) {
pr_err("out of memory for SFI platform device '%s'.\n",
@ -859,7 +839,7 @@ static void __init sfi_handle_ipc_dev(struct sfi_device_table_entry *pentry,
install_irq_resource(pdev, pentry->irq);
pdev->dev.platform_data = pdata;
intel_scu_device_register(pdev);
platform_device_add(pdev);
}
static void __init sfi_handle_spi_dev(struct sfi_device_table_entry *pentry,
@ -914,6 +894,46 @@ static void __init sfi_handle_i2c_dev(struct sfi_device_table_entry *pentry,
i2c_register_board_info(pentry->host_num, &i2c_info, 1);
}
static void __init ipc_device_handler(struct sfi_device_table_entry *pentry,
struct devs_id *dev)
{
struct platform_device *pdev;
void *pdata = NULL;
static struct resource res __initdata = {
.name = "IRQ",
.flags = IORESOURCE_IRQ,
};
pr_debug("IPC bus, name = %16.16s, irq = 0x%2x\n",
pentry->name, pentry->irq);
/*
* We need to call platform init of IPC devices to fill misc_pdata
* structure. It will be used in msic_init for initialization.
*/
if (dev != NULL)
pdata = dev->get_platform_data(pentry);
/*
* On Medfield the platform device creation is handled by the MSIC
* MFD driver so we don't need to do it here.
*/
if (intel_mid_has_msic())
return;
pdev = platform_device_alloc(pentry->name, 0);
if (pdev == NULL) {
pr_err("out of memory for SFI platform device '%s'.\n",
pentry->name);
return;
}
res.start = pentry->irq;
platform_device_add_resources(pdev, &res, 1);
pdev->dev.platform_data = pdata;
intel_scu_device_register(pdev);
}
static struct devs_id __init *get_device_id(u8 type, char *name)
{
struct devs_id *dev = device_ids;