Shashidhar Hiremath | 62ca803 | 2012-01-13 16:04:57 +0530 | [diff] [blame] | 1 | /* |
| 2 | * Synopsys DesignWare Multimedia Card Interface driver |
| 3 | * |
| 4 | * Copyright (C) 2009 NXP Semiconductors |
| 5 | * Copyright (C) 2009, 2010 Imagination Technologies Ltd. |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or modify |
| 8 | * it under the terms of the GNU General Public License as published by |
| 9 | * the Free Software Foundation; either version 2 of the License, or |
| 10 | * (at your option) any later version. |
| 11 | */ |
| 12 | |
Thierry Reding | a3e2cd7 | 2013-01-21 11:09:11 +0100 | [diff] [blame] | 13 | #include <linux/err.h> |
Shashidhar Hiremath | 62ca803 | 2012-01-13 16:04:57 +0530 | [diff] [blame] | 14 | #include <linux/interrupt.h> |
| 15 | #include <linux/module.h> |
| 16 | #include <linux/io.h> |
| 17 | #include <linux/irq.h> |
| 18 | #include <linux/platform_device.h> |
Shawn Lin | ee2112b | 2016-10-12 10:56:46 +0800 | [diff] [blame] | 19 | #include <linux/pm_runtime.h> |
Shashidhar Hiremath | 62ca803 | 2012-01-13 16:04:57 +0530 | [diff] [blame] | 20 | #include <linux/slab.h> |
| 21 | #include <linux/mmc/host.h> |
| 22 | #include <linux/mmc/mmc.h> |
Thomas Abraham | c91eab4 | 2012-09-17 18:16:40 +0000 | [diff] [blame] | 23 | #include <linux/of.h> |
Addy Ke | f629ba2 | 2014-07-31 14:01:38 +0800 | [diff] [blame] | 24 | #include <linux/clk.h> |
Thomas Abraham | c91eab4 | 2012-09-17 18:16:40 +0000 | [diff] [blame] | 25 | |
Shashidhar Hiremath | 62ca803 | 2012-01-13 16:04:57 +0530 | [diff] [blame] | 26 | #include "dw_mmc.h" |
Jingoo Han | 7725a52 | 2013-08-06 10:54:07 +0900 | [diff] [blame] | 27 | #include "dw_mmc-pltfm.h" |
Shashidhar Hiremath | 62ca803 | 2012-01-13 16:04:57 +0530 | [diff] [blame] | 28 | |
Thomas Abraham | 800d78b | 2012-09-17 18:16:42 +0000 | [diff] [blame] | 29 | int dw_mci_pltfm_register(struct platform_device *pdev, |
Andy Shevchenko | bcc8766 | 2013-06-05 12:24:10 +0300 | [diff] [blame] | 30 | const struct dw_mci_drv_data *drv_data) |
Shashidhar Hiremath | 62ca803 | 2012-01-13 16:04:57 +0530 | [diff] [blame] | 31 | { |
| 32 | struct dw_mci *host; |
| 33 | struct resource *regs; |
Shashidhar Hiremath | 62ca803 | 2012-01-13 16:04:57 +0530 | [diff] [blame] | 34 | |
Thomas Abraham | bb8bdc7 | 2012-09-17 18:16:36 +0000 | [diff] [blame] | 35 | host = devm_kzalloc(&pdev->dev, sizeof(struct dw_mci), GFP_KERNEL); |
Shashidhar Hiremath | 62ca803 | 2012-01-13 16:04:57 +0530 | [diff] [blame] | 36 | if (!host) |
| 37 | return -ENOMEM; |
| 38 | |
Shashidhar Hiremath | 62ca803 | 2012-01-13 16:04:57 +0530 | [diff] [blame] | 39 | host->irq = platform_get_irq(pdev, 0); |
Thomas Abraham | bb8bdc7 | 2012-09-17 18:16:36 +0000 | [diff] [blame] | 40 | if (host->irq < 0) |
| 41 | return host->irq; |
Shashidhar Hiremath | 62ca803 | 2012-01-13 16:04:57 +0530 | [diff] [blame] | 42 | |
Thomas Abraham | 800d78b | 2012-09-17 18:16:42 +0000 | [diff] [blame] | 43 | host->drv_data = drv_data; |
Thomas Abraham | 4a90920 | 2012-09-17 18:16:35 +0000 | [diff] [blame] | 44 | host->dev = &pdev->dev; |
Shashidhar Hiremath | 62ca803 | 2012-01-13 16:04:57 +0530 | [diff] [blame] | 45 | host->irq_flags = 0; |
| 46 | host->pdata = pdev->dev.platform_data; |
Andy Shevchenko | bcc8766 | 2013-06-05 12:24:10 +0300 | [diff] [blame] | 47 | |
| 48 | regs = platform_get_resource(pdev, IORESOURCE_MEM, 0); |
Thierry Reding | a3e2cd7 | 2013-01-21 11:09:11 +0100 | [diff] [blame] | 49 | host->regs = devm_ioremap_resource(&pdev->dev, regs); |
| 50 | if (IS_ERR(host->regs)) |
| 51 | return PTR_ERR(host->regs); |
Thomas Abraham | bb8bdc7 | 2012-09-17 18:16:36 +0000 | [diff] [blame] | 52 | |
Jaehoon Chung | 45c7a49 | 2016-10-21 19:57:57 +0900 | [diff] [blame] | 53 | /* Get registers' physical base address */ |
| 54 | host->phy_regs = regs->start; |
| 55 | |
Shashidhar Hiremath | 62ca803 | 2012-01-13 16:04:57 +0530 | [diff] [blame] | 56 | platform_set_drvdata(pdev, host); |
Andy Shevchenko | dd36980 | 2013-06-05 12:24:11 +0300 | [diff] [blame] | 57 | return dw_mci_probe(host); |
Shashidhar Hiremath | 62ca803 | 2012-01-13 16:04:57 +0530 | [diff] [blame] | 58 | } |
Thomas Abraham | 17403f2 | 2012-09-17 18:16:41 +0000 | [diff] [blame] | 59 | EXPORT_SYMBOL_GPL(dw_mci_pltfm_register); |
| 60 | |
Shawn Lin | ee2112b | 2016-10-12 10:56:46 +0800 | [diff] [blame] | 61 | const struct dev_pm_ops dw_mci_pltfm_pmops = { |
| 62 | SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend, |
| 63 | pm_runtime_force_resume) |
| 64 | SET_RUNTIME_PM_OPS(dw_mci_runtime_suspend, |
| 65 | dw_mci_runtime_resume, |
| 66 | NULL) |
| 67 | }; |
Thomas Abraham | 17403f2 | 2012-09-17 18:16:41 +0000 | [diff] [blame] | 68 | EXPORT_SYMBOL_GPL(dw_mci_pltfm_pmops); |
Shashidhar Hiremath | 62ca803 | 2012-01-13 16:04:57 +0530 | [diff] [blame] | 69 | |
Thomas Abraham | c91eab4 | 2012-09-17 18:16:40 +0000 | [diff] [blame] | 70 | static const struct of_device_id dw_mci_pltfm_match[] = { |
| 71 | { .compatible = "snps,dw-mshc", }, |
Jaehoon Chung | aaaaeb7 | 2016-01-21 11:01:06 +0900 | [diff] [blame] | 72 | { .compatible = "altr,socfpga-dw-mshc", }, |
| 73 | { .compatible = "img,pistachio-dw-mshc", }, |
Thomas Abraham | c91eab4 | 2012-09-17 18:16:40 +0000 | [diff] [blame] | 74 | {}, |
| 75 | }; |
| 76 | MODULE_DEVICE_TABLE(of, dw_mci_pltfm_match); |
| 77 | |
Heiko Stübner | b177a53 | 2013-06-13 10:57:01 +0200 | [diff] [blame] | 78 | static int dw_mci_pltfm_probe(struct platform_device *pdev) |
| 79 | { |
Heiko Stübner | c73e41c | 2013-06-27 11:55:35 -0400 | [diff] [blame] | 80 | const struct dw_mci_drv_data *drv_data = NULL; |
| 81 | const struct of_device_id *match; |
| 82 | |
| 83 | if (pdev->dev.of_node) { |
| 84 | match = of_match_node(dw_mci_pltfm_match, pdev->dev.of_node); |
| 85 | drv_data = match->data; |
| 86 | } |
| 87 | |
| 88 | return dw_mci_pltfm_register(pdev, drv_data); |
Heiko Stübner | b177a53 | 2013-06-13 10:57:01 +0200 | [diff] [blame] | 89 | } |
| 90 | |
| 91 | int dw_mci_pltfm_remove(struct platform_device *pdev) |
| 92 | { |
| 93 | struct dw_mci *host = platform_get_drvdata(pdev); |
| 94 | |
| 95 | dw_mci_remove(host); |
| 96 | return 0; |
| 97 | } |
| 98 | EXPORT_SYMBOL_GPL(dw_mci_pltfm_remove); |
| 99 | |
Shashidhar Hiremath | 62ca803 | 2012-01-13 16:04:57 +0530 | [diff] [blame] | 100 | static struct platform_driver dw_mci_pltfm_driver = { |
Andy Shevchenko | 49480cf | 2012-10-03 16:26:37 +0300 | [diff] [blame] | 101 | .probe = dw_mci_pltfm_probe, |
Greg Kroah-Hartman | 4e608e4 | 2012-12-21 15:05:47 -0800 | [diff] [blame] | 102 | .remove = dw_mci_pltfm_remove, |
Shashidhar Hiremath | 62ca803 | 2012-01-13 16:04:57 +0530 | [diff] [blame] | 103 | .driver = { |
| 104 | .name = "dw_mmc", |
Sachin Kamat | cf109bc | 2014-02-25 15:18:23 +0530 | [diff] [blame] | 105 | .of_match_table = dw_mci_pltfm_match, |
Shashidhar Hiremath | 62ca803 | 2012-01-13 16:04:57 +0530 | [diff] [blame] | 106 | .pm = &dw_mci_pltfm_pmops, |
| 107 | }, |
| 108 | }; |
| 109 | |
Andy Shevchenko | 49480cf | 2012-10-03 16:26:37 +0300 | [diff] [blame] | 110 | module_platform_driver(dw_mci_pltfm_driver); |
Shashidhar Hiremath | 62ca803 | 2012-01-13 16:04:57 +0530 | [diff] [blame] | 111 | |
| 112 | MODULE_DESCRIPTION("DW Multimedia Card Interface driver"); |
| 113 | MODULE_AUTHOR("NXP Semiconductor VietNam"); |
| 114 | MODULE_AUTHOR("Imagination Technologies Ltd"); |
| 115 | MODULE_LICENSE("GPL v2"); |