[linux-block.git] / drivers / mfd / intel-lpss-acpi.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * Intel LPSS ACPI support.
 *
 * Copyright (C) 2015, Intel Corporation
 *
 * Authors: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
 *          Mika Westerberg <mika.westerberg@linux.intel.com>
 */

#include <linux/acpi.h>
#include <linux/ioport.h>
#include <linux/kernel.h>
#include <linux/module.h>
#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 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,
	.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 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,
	.swnode = &bxt_i2c_node,
};

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,
	.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 },
	{ "80860AC2", (kernel_ulong_t)&bxt_info },
	/* APL */
	{ "80865AAC", (kernel_ulong_t)&apl_i2c_info },
	{ "80865ABC", (kernel_ulong_t)&bxt_info },
	{ "80865AC2", (kernel_ulong_t)&bxt_info },
	{ }
};
MODULE_DEVICE_TABLE(acpi, intel_lpss_acpi_ids);

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)
		return -ENODEV;

	info = devm_kmemdup(&pdev->dev, (void *)id->driver_data, sizeof(*info),
			    GFP_KERNEL);
	if (!info)
		return -ENOMEM;

	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 0;
}

static int 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,
	},
};

module_platform_driver(intel_lpss_acpi_driver);

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");
Commit	Line	Data
d2912cb1	1	// SPDX-License-Identifier: GPL-2.0-only
4b45efe8 AS	2	/*
	3	* Intel LPSS ACPI support.
	4	*
	5	* Copyright (C) 2015, Intel Corporation
	6	*
	7	* Authors: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
	8	* Mika Westerberg <mika.westerberg@linux.intel.com>
4b45efe8 AS	9	*/
	10
	11	#include <linux/acpi.h>
	12	#include <linux/ioport.h>
	13	#include <linux/kernel.h>
	14	#include <linux/module.h>
4b45efe8 AS	15	#include <linux/pm_runtime.h>
4b45efe8 AS	16	#include <linux/platform_device.h>
028af594	17	#include <linux/property.h>
5a2d27c2	18	#include <linux/pxa2xx_ssp.h>
4b45efe8 AS	19
	20	#include "intel-lpss.h"
	21
5a2d27c2 AS	22	static const struct property_entry spt_spi_properties[] = {
	23	PROPERTY_ENTRY_U32("intel,spi-pxa2xx-type", LPSS_SPT_SSP),
	24	{ }
	25	};
	26
	27	static const struct software_node spt_spi_node = {
	28	.properties = spt_spi_properties,
	29	};
	30
c5b90cb2 AS	31	static const struct intel_lpss_platform_info spt_info = {
c5b90cb2 AS	32	.clk_rate = 120000000,
5a2d27c2	33	.swnode = &spt_spi_node,
c5b90cb2 AS	34	};
c5b90cb2 AS	35
9677e6f7	36	static const struct property_entry spt_i2c_properties[] = {
028af594 MW	37	PROPERTY_ENTRY_U32("i2c-sda-hold-time-ns", 230),
	38	{ },
	39	};
	40
03152e35 HK	41	static const struct software_node spt_i2c_node = {
	42	.properties = spt_i2c_properties,
	43	};
	44
028af594 MW	45	static const struct intel_lpss_platform_info spt_i2c_info = {
028af594 MW	46	.clk_rate = 120000000,
03152e35	47	.swnode = &spt_i2c_node,
028af594 MW	48	};
028af594 MW	49
9677e6f7	50	static const struct property_entry uart_properties[] = {
c5b90cb2 AS	51	PROPERTY_ENTRY_U32("reg-io-width", 4),
	52	PROPERTY_ENTRY_U32("reg-shift", 2),
	53	PROPERTY_ENTRY_BOOL("snps,uart-16550-compatible"),
	54	{ },
	55	};
	56
03152e35 HK	57	static const struct software_node uart_node = {
	58	.properties = uart_properties,
	59	};
	60
c5b90cb2 AS	61	static const struct intel_lpss_platform_info spt_uart_info = {
	62	.clk_rate = 120000000,
	63	.clk_con_id = "baudclk",
03152e35	64	.swnode = &uart_node,
c5b90cb2 AS	65	};
c5b90cb2 AS	66
5a2d27c2 AS	67	static const struct property_entry bxt_spi_properties[] = {
	68	PROPERTY_ENTRY_U32("intel,spi-pxa2xx-type", LPSS_BXT_SSP),
	69	{ }
	70	};
	71
	72	static const struct software_node bxt_spi_node = {
	73	.properties = bxt_spi_properties,
	74	};
	75
6a636ec0 MW	76	static const struct intel_lpss_platform_info bxt_info = {
6a636ec0 MW	77	.clk_rate = 100000000,
5a2d27c2	78	.swnode = &bxt_spi_node,
6a636ec0 MW	79	};
6a636ec0 MW	80
9677e6f7	81	static const struct property_entry bxt_i2c_properties[] = {
0343b2f4 MW	82	PROPERTY_ENTRY_U32("i2c-sda-hold-time-ns", 42),
	83	PROPERTY_ENTRY_U32("i2c-sda-falling-time-ns", 171),
	84	PROPERTY_ENTRY_U32("i2c-scl-falling-time-ns", 208),
	85	{ },
	86	};
	87
03152e35 HK	88	static const struct software_node bxt_i2c_node = {
	89	.properties = bxt_i2c_properties,
	90	};
	91
6a636ec0 MW	92	static const struct intel_lpss_platform_info bxt_i2c_info = {
6a636ec0 MW	93	.clk_rate = 133000000,
03152e35	94	.swnode = &bxt_i2c_node,
6a636ec0 MW	95	};
6a636ec0 MW	96
9677e6f7	97	static const struct property_entry apl_i2c_properties[] = {
c50cdd62 JN	98	PROPERTY_ENTRY_U32("i2c-sda-hold-time-ns", 207),
	99	PROPERTY_ENTRY_U32("i2c-sda-falling-time-ns", 171),
	100	PROPERTY_ENTRY_U32("i2c-scl-falling-time-ns", 208),
	101	{ },
	102	};
	103
03152e35 HK	104	static const struct software_node apl_i2c_node = {
	105	.properties = apl_i2c_properties,
	106	};
	107
c50cdd62 JN	108	static const struct intel_lpss_platform_info apl_i2c_info = {
c50cdd62 JN	109	.clk_rate = 133000000,
03152e35	110	.swnode = &apl_i2c_node,
c50cdd62 JN	111	};
c50cdd62 JN	112
5a2d27c2 AS	113	static const struct property_entry cnl_spi_properties[] = {
	114	PROPERTY_ENTRY_U32("intel,spi-pxa2xx-type", LPSS_CNL_SSP),
	115	{ }
	116	};
	117
	118	static const struct software_node cnl_spi_node = {
	119	.properties = cnl_spi_properties,
	120	};
	121
	122	static const struct intel_lpss_platform_info cnl_info = {
	123	.clk_rate = 120000000,
	124	.swnode = &cnl_spi_node,
	125	};
	126
32979fcf AS	127	static const struct intel_lpss_platform_info cnl_i2c_info = {
	128	.clk_rate = 216000000,
	129	.swnode = &spt_i2c_node,
	130	};
	131
4b45efe8 AS	132	static const struct acpi_device_id intel_lpss_acpi_ids[] = {
4b45efe8 AS	133	/* SPT */
c5b90cb2 AS	134	{ "INT3440", (kernel_ulong_t)&spt_info },
	135	{ "INT3441", (kernel_ulong_t)&spt_info },
	136	{ "INT3442", (kernel_ulong_t)&spt_i2c_info },
	137	{ "INT3443", (kernel_ulong_t)&spt_i2c_info },
	138	{ "INT3444", (kernel_ulong_t)&spt_i2c_info },
	139	{ "INT3445", (kernel_ulong_t)&spt_i2c_info },
028af594 MW	140	{ "INT3446", (kernel_ulong_t)&spt_i2c_info },
028af594 MW	141	{ "INT3447", (kernel_ulong_t)&spt_i2c_info },
c5b90cb2 AS	142	{ "INT3448", (kernel_ulong_t)&spt_uart_info },
	143	{ "INT3449", (kernel_ulong_t)&spt_uart_info },
	144	{ "INT344A", (kernel_ulong_t)&spt_uart_info },
32979fcf	145	/* CNL */
5a2d27c2 AS	146	{ "INT34B0", (kernel_ulong_t)&cnl_info },
5a2d27c2 AS	147	{ "INT34B1", (kernel_ulong_t)&cnl_info },
32979fcf AS	148	{ "INT34B2", (kernel_ulong_t)&cnl_i2c_info },
	149	{ "INT34B3", (kernel_ulong_t)&cnl_i2c_info },
	150	{ "INT34B4", (kernel_ulong_t)&cnl_i2c_info },
	151	{ "INT34B5", (kernel_ulong_t)&cnl_i2c_info },
	152	{ "INT34B6", (kernel_ulong_t)&cnl_i2c_info },
	153	{ "INT34B7", (kernel_ulong_t)&cnl_i2c_info },
	154	{ "INT34B8", (kernel_ulong_t)&spt_uart_info },
	155	{ "INT34B9", (kernel_ulong_t)&spt_uart_info },
	156	{ "INT34BA", (kernel_ulong_t)&spt_uart_info },
5a2d27c2	157	{ "INT34BC", (kernel_ulong_t)&cnl_info },
6a636ec0 MW	158	/* BXT */
	159	{ "80860AAC", (kernel_ulong_t)&bxt_i2c_info },
	160	{ "80860ABC", (kernel_ulong_t)&bxt_info },
	161	{ "80860AC2", (kernel_ulong_t)&bxt_info },
	162	/* APL */
c50cdd62	163	{ "80865AAC", (kernel_ulong_t)&apl_i2c_info },
6a636ec0 MW	164	{ "80865ABC", (kernel_ulong_t)&bxt_info },
6a636ec0 MW	165	{ "80865AC2", (kernel_ulong_t)&bxt_info },
4b45efe8 AS	166	{ }
	167	};
	168	MODULE_DEVICE_TABLE(acpi, intel_lpss_acpi_ids);
	169
	170	static int intel_lpss_acpi_probe(struct platform_device *pdev)
	171	{
	172	struct intel_lpss_platform_info *info;
	173	const struct acpi_device_id *id;
c9e14308	174	int ret;
4b45efe8 AS	175
	176	id = acpi_match_device(intel_lpss_acpi_ids, &pdev->dev);
	177	if (!id)
	178	return -ENODEV;
	179
	180	info = devm_kmemdup(&pdev->dev, (void )id->driver_data, sizeof(info),
	181	GFP_KERNEL);
	182	if (!info)
	183	return -ENOMEM;
	184
	185	info->mem = platform_get_resource(pdev, IORESOURCE_MEM, 0);
	186	info->irq = platform_get_irq(pdev, 0);
	187
c9e14308 AS	188	ret = intel_lpss_probe(&pdev->dev, info);
	189	if (ret)
	190	return ret;
	191
4b45efe8 AS	192	pm_runtime_set_active(&pdev->dev);
	193	pm_runtime_enable(&pdev->dev);
	194
c9e14308	195	return 0;
4b45efe8 AS	196	}
	197
	198	static int intel_lpss_acpi_remove(struct platform_device *pdev)
	199	{
	200	intel_lpss_remove(&pdev->dev);
	201	pm_runtime_disable(&pdev->dev);
	202
	203	return 0;
	204	}
	205
	206	static INTEL_LPSS_PM_OPS(intel_lpss_acpi_pm_ops);
	207
	208	static struct platform_driver intel_lpss_acpi_driver = {
	209	.probe = intel_lpss_acpi_probe,
	210	.remove = intel_lpss_acpi_remove,
	211	.driver = {
	212	.name = "intel-lpss",
	213	.acpi_match_table = intel_lpss_acpi_ids,
	214	.pm = &intel_lpss_acpi_pm_ops,
	215	},
	216	};
	217
	218	module_platform_driver(intel_lpss_acpi_driver);
	219
	220	MODULE_AUTHOR("Andy Shevchenko <andriy.shevchenko@linux.intel.com>");
	221	MODULE_AUTHOR("Mika Westerberg <mika.westerberg@linux.intel.com>");
	222	MODULE_DESCRIPTION("Intel LPSS ACPI driver");
	223	MODULE_LICENSE("GPL v2");