diff options
Diffstat (limited to 'drivers/mfd/intel-lpss-acpi.c')
| -rw-r--r-- | drivers/mfd/intel-lpss-acpi.c | 92 |
1 files changed, 83 insertions, 9 deletions
diff --git a/drivers/mfd/intel-lpss-acpi.c b/drivers/mfd/intel-lpss-acpi.c index c8fe334b5fe8..a143c8dca2d9 100644 --- a/drivers/mfd/intel-lpss-acpi.c +++ b/drivers/mfd/intel-lpss-acpi.c @@ -15,62 +15,118 @@ #include <linux/pm_runtime.h> #include <linux/platform_device.h> #include <linux/property.h> +#include <linux/pxa2xx_ssp.h> #include "intel-lpss.h" +static const struct property_entry spt_spi_properties[] = { + PROPERTY_ENTRY_U32("intel,spi-pxa2xx-type", LPSS_SPT_SSP), + { } +}; + +static const struct software_node spt_spi_node = { + .properties = spt_spi_properties, +}; + static const struct intel_lpss_platform_info spt_info = { .clk_rate = 120000000, + .swnode = &spt_spi_node, }; -static struct property_entry spt_i2c_properties[] = { +static const struct property_entry spt_i2c_properties[] = { PROPERTY_ENTRY_U32("i2c-sda-hold-time-ns", 230), { }, }; +static const struct software_node spt_i2c_node = { + .properties = spt_i2c_properties, +}; + static const struct intel_lpss_platform_info spt_i2c_info = { .clk_rate = 120000000, - .properties = spt_i2c_properties, + .swnode = &spt_i2c_node, }; -static struct property_entry uart_properties[] = { +static const 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 const struct software_node uart_node = { + .properties = uart_properties, +}; + static const struct intel_lpss_platform_info spt_uart_info = { .clk_rate = 120000000, .clk_con_id = "baudclk", - .properties = uart_properties, + .swnode = &uart_node, +}; + +static const struct property_entry bxt_spi_properties[] = { + PROPERTY_ENTRY_U32("intel,spi-pxa2xx-type", LPSS_BXT_SSP), + { } +}; + +static const struct software_node bxt_spi_node = { + .properties = bxt_spi_properties, }; static const struct intel_lpss_platform_info bxt_info = { .clk_rate = 100000000, + .swnode = &bxt_spi_node, }; -static struct property_entry bxt_i2c_properties[] = { +static const struct property_entry bxt_i2c_properties[] = { PROPERTY_ENTRY_U32("i2c-sda-hold-time-ns", 42), PROPERTY_ENTRY_U32("i2c-sda-falling-time-ns", 171), PROPERTY_ENTRY_U32("i2c-scl-falling-time-ns", 208), { }, }; +static const struct software_node bxt_i2c_node = { + .properties = bxt_i2c_properties, +}; + static const struct intel_lpss_platform_info bxt_i2c_info = { .clk_rate = 133000000, - .properties = bxt_i2c_properties, + .swnode = &bxt_i2c_node, }; -static struct property_entry apl_i2c_properties[] = { +static const struct property_entry apl_i2c_properties[] = { PROPERTY_ENTRY_U32("i2c-sda-hold-time-ns", 207), PROPERTY_ENTRY_U32("i2c-sda-falling-time-ns", 171), PROPERTY_ENTRY_U32("i2c-scl-falling-time-ns", 208), { }, }; +static const struct software_node apl_i2c_node = { + .properties = apl_i2c_properties, +}; + static const struct intel_lpss_platform_info apl_i2c_info = { .clk_rate = 133000000, - .properties = apl_i2c_properties, + .swnode = &apl_i2c_node, +}; + +static const struct property_entry cnl_spi_properties[] = { + PROPERTY_ENTRY_U32("intel,spi-pxa2xx-type", LPSS_CNL_SSP), + { } +}; + +static const struct software_node cnl_spi_node = { + .properties = cnl_spi_properties, +}; + +static const struct intel_lpss_platform_info cnl_info = { + .clk_rate = 120000000, + .swnode = &cnl_spi_node, +}; + +static const struct intel_lpss_platform_info cnl_i2c_info = { + .clk_rate = 216000000, + .swnode = &spt_i2c_node, }; static const struct acpi_device_id intel_lpss_acpi_ids[] = { @@ -86,6 +142,19 @@ static const struct acpi_device_id intel_lpss_acpi_ids[] = { { "INT3448", (kernel_ulong_t)&spt_uart_info }, { "INT3449", (kernel_ulong_t)&spt_uart_info }, { "INT344A", (kernel_ulong_t)&spt_uart_info }, + /* CNL */ + { "INT34B0", (kernel_ulong_t)&cnl_info }, + { "INT34B1", (kernel_ulong_t)&cnl_info }, + { "INT34B2", (kernel_ulong_t)&cnl_i2c_info }, + { "INT34B3", (kernel_ulong_t)&cnl_i2c_info }, + { "INT34B4", (kernel_ulong_t)&cnl_i2c_info }, + { "INT34B5", (kernel_ulong_t)&cnl_i2c_info }, + { "INT34B6", (kernel_ulong_t)&cnl_i2c_info }, + { "INT34B7", (kernel_ulong_t)&cnl_i2c_info }, + { "INT34B8", (kernel_ulong_t)&spt_uart_info }, + { "INT34B9", (kernel_ulong_t)&spt_uart_info }, + { "INT34BA", (kernel_ulong_t)&spt_uart_info }, + { "INT34BC", (kernel_ulong_t)&cnl_info }, /* BXT */ { "80860AAC", (kernel_ulong_t)&bxt_i2c_info }, { "80860ABC", (kernel_ulong_t)&bxt_info }, @@ -102,6 +171,7 @@ static int intel_lpss_acpi_probe(struct platform_device *pdev) { struct intel_lpss_platform_info *info; const struct acpi_device_id *id; + int ret; id = acpi_match_device(intel_lpss_acpi_ids, &pdev->dev); if (!id) @@ -115,10 +185,14 @@ static int intel_lpss_acpi_probe(struct platform_device *pdev) info->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); info->irq = platform_get_irq(pdev, 0); + ret = intel_lpss_probe(&pdev->dev, info); + if (ret) + return ret; + pm_runtime_set_active(&pdev->dev); pm_runtime_enable(&pdev->dev); - return intel_lpss_probe(&pdev->dev, info); + return 0; } static int intel_lpss_acpi_remove(struct platform_device *pdev) |