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| author | Heikki Krogerus <heikki.krogerus@linux.intel.com> | 2016-08-23 11:33:26 +0300 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2016-08-31 01:18:56 +0200 |
| commit | 7ff55d174cbfdd06245c20a7488da4e9499cfd11 (patch) | |
| tree | 4612d53ccf0909b6d1a2c76c2a44efb50eb96df9 /drivers/acpi/acpi_apd.c | |
| parent | 478573c93abd369c4850de55c387be43aa01e2e8 (diff) | |
| download | linux-7ff55d174cbfdd06245c20a7488da4e9499cfd11.tar.gz linux-7ff55d174cbfdd06245c20a7488da4e9499cfd11.tar.bz2 linux-7ff55d174cbfdd06245c20a7488da4e9499cfd11.zip | |
ACPI / APD: Provide build-in properties of the UART
The UART driver, dw8250.c, needs some details regarding the
Designware UART. For ACPI enumerated devices the values are
hard-coded, but since the driver also reads the values from
device properties, providing them with build-in properties.
This allows us to later remove the hard-coded values from
the driver.
Signed-off-by: Heikki Krogerus <heikki.krogerus@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Diffstat (limited to 'drivers/acpi/acpi_apd.c')
| -rw-r--r-- | drivers/acpi/acpi_apd.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/acpi/acpi_apd.c b/drivers/acpi/acpi_apd.c index 1daf9c46df8e..5f112d811e42 100644 --- a/drivers/acpi/acpi_apd.c +++ b/drivers/acpi/acpi_apd.c @@ -42,6 +42,7 @@ struct apd_private_data; struct apd_device_desc { unsigned int flags; unsigned int fixed_clk_rate; + struct property_entry *properties; int (*setup)(struct apd_private_data *pdata); }; @@ -76,9 +77,17 @@ static struct apd_device_desc cz_i2c_desc = { .fixed_clk_rate = 133000000, }; +static struct property_entry uart_properties[] = { + PROPERTY_ENTRY_U32("reg-io-width", 4), + PROPERTY_ENTRY_U32("reg-shift", 2), + PROPERTY_ENTRY_BOOL("snps,uart-16550-compatible"), + { }, +}; + static struct apd_device_desc cz_uart_desc = { .setup = acpi_apd_setup, .fixed_clk_rate = 48000000, + .properties = uart_properties, }; #endif @@ -125,6 +134,12 @@ static int acpi_apd_create_device(struct acpi_device *adev, goto err_out; } + if (dev_desc->properties) { + ret = device_add_properties(&adev->dev, dev_desc->properties); + if (ret) + goto err_out; + } + adev->driver_data = pdata; pdev = acpi_create_platform_device(adev); if (!IS_ERR_OR_NULL(pdev)) |