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mfd: dln2: Allow to be enumerated via ACPI 

On some platforms user may want to enumerate DLN2 device, its children,
to be enumerated via ACPI. In order to achieve this, let's distinguish
children by _ADR value.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
This commit is contained in:
Andy Shevchenko 2020-03-23 22:02:37 +02:00 committed by Lee Jones
parent b1cc5409f0
commit e3fadb35bc
1 changed files with 21 additions and 0 deletions
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21
drivers/mfd/dln2.c
View File

@ -645,35 +645,56 @@ static int dln2_start_rx_urbs(struct dln2_dev *dln2, gfp_t gfp)
return 0;
}
enum {
DLN2_ACPI_MATCH_GPIO = 0,
DLN2_ACPI_MATCH_I2C = 1,
DLN2_ACPI_MATCH_SPI = 2,
};
static struct dln2_platform_data dln2_pdata_gpio = {
.handle = DLN2_HANDLE_GPIO,
};
static struct mfd_cell_acpi_match dln2_acpi_match_gpio = {
.adr = DLN2_ACPI_MATCH_GPIO,
};
/* Only one I2C port seems to be supported on current hardware */
static struct dln2_platform_data dln2_pdata_i2c = {
.handle = DLN2_HANDLE_I2C,
.port = 0,
};
static struct mfd_cell_acpi_match dln2_acpi_match_i2c = {
.adr = DLN2_ACPI_MATCH_I2C,
};
/* Only one SPI port supported */
static struct dln2_platform_data dln2_pdata_spi = {
.handle = DLN2_HANDLE_SPI,
.port = 0,
};
static struct mfd_cell_acpi_match dln2_acpi_match_spi = {
.adr = DLN2_ACPI_MATCH_SPI,
};
static const struct mfd_cell dln2_devs[] = {
{
.name = "dln2-gpio",
.acpi_match = &dln2_acpi_match_gpio,
.platform_data = &dln2_pdata_gpio,
.pdata_size = sizeof(struct dln2_platform_data),
},
{
.name = "dln2-i2c",
.acpi_match = &dln2_acpi_match_i2c,
.platform_data = &dln2_pdata_i2c,
.pdata_size = sizeof(struct dln2_platform_data),
},
{
.name = "dln2-spi",
.acpi_match = &dln2_acpi_match_spi,
.platform_data = &dln2_pdata_spi,
.pdata_size = sizeof(struct dln2_platform_data),
},