diff options
Diffstat (limited to 'drivers/mfd/intel-lpss-acpi.c')
| -rw-r--r-- | drivers/mfd/intel-lpss-acpi.c | 146 |
1 files changed, 122 insertions, 24 deletions
diff --git a/drivers/mfd/intel-lpss-acpi.c b/drivers/mfd/intel-lpss-acpi.c index 7911b0a14a6d..63406026d809 100644 --- a/drivers/mfd/intel-lpss-acpi.c +++ b/drivers/mfd/intel-lpss-acpi.c @@ -1,3 +1,4 @@ +// SPDX-License-Identifier: GPL-2.0-only /* * Intel LPSS ACPI support. * @@ -5,65 +6,160 @@ * * Authors: Andy Shevchenko <andriy.shevchenko@linux.intel.com> * Mika Westerberg <mika.westerberg@linux.intel.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. */ -#include <linux/acpi.h> +#include <linux/device.h> +#include <linux/gfp_types.h> #include <linux/ioport.h> -#include <linux/kernel.h> +#include <linux/mod_devicetable.h> #include <linux/module.h> #include <linux/pm.h> #include <linux/pm_runtime.h> #include <linux/platform_device.h> #include <linux/property.h> +#include <linux/pxa2xx_ssp.h> + +#include <asm/errno.h> + #include "intel-lpss.h" -static struct property_entry spt_i2c_properties[] = { +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 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 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", + .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[] = { /* SPT */ + { "INT3440", (kernel_ulong_t)&spt_info }, + { "INT3441", (kernel_ulong_t)&spt_info }, + { "INT3442", (kernel_ulong_t)&spt_i2c_info }, + { "INT3443", (kernel_ulong_t)&spt_i2c_info }, + { "INT3444", (kernel_ulong_t)&spt_i2c_info }, + { "INT3445", (kernel_ulong_t)&spt_i2c_info }, { "INT3446", (kernel_ulong_t)&spt_i2c_info }, { "INT3447", (kernel_ulong_t)&spt_i2c_info }, + { "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 }, @@ -78,44 +174,45 @@ MODULE_DEVICE_TABLE(acpi, intel_lpss_acpi_ids); static int intel_lpss_acpi_probe(struct platform_device *pdev) { + const struct intel_lpss_platform_info *data; 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) + data = device_get_match_data(&pdev->dev); + if (!data) return -ENODEV; - info = devm_kmemdup(&pdev->dev, (void *)id->driver_data, sizeof(*info), - GFP_KERNEL); + info = devm_kmemdup(&pdev->dev, data, sizeof(*info), GFP_KERNEL); if (!info) return -ENOMEM; + /* No need to check mem and irq here as intel_lpss_probe() does it for us */ 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) +static void intel_lpss_acpi_remove(struct platform_device *pdev) { intel_lpss_remove(&pdev->dev); pm_runtime_disable(&pdev->dev); - - return 0; } -static INTEL_LPSS_PM_OPS(intel_lpss_acpi_pm_ops); - static struct platform_driver intel_lpss_acpi_driver = { .probe = intel_lpss_acpi_probe, .remove = intel_lpss_acpi_remove, .driver = { .name = "intel-lpss", .acpi_match_table = intel_lpss_acpi_ids, - .pm = &intel_lpss_acpi_pm_ops, + .pm = pm_ptr(&intel_lpss_pm_ops), }, }; @@ -125,3 +222,4 @@ MODULE_AUTHOR("Andy Shevchenko <andriy.shevchenko@linux.intel.com>"); MODULE_AUTHOR("Mika Westerberg <mika.westerberg@linux.intel.com>"); MODULE_DESCRIPTION("Intel LPSS ACPI driver"); MODULE_LICENSE("GPL v2"); +MODULE_IMPORT_NS("INTEL_LPSS"); |