arch/arm/plat-mxc/devices/platform-ipu-core.c

   1 /*
   2  * Copyright (C) 2011 Pengutronix
   3  * Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
   4  *
   5  * This program is free software; you can redistribute it and/or modify it under
   6  * the terms of the GNU General Public License version 2 as published by the
   7  * Free Software Foundation.
   8  */
   9 #include <linux/dma-mapping.h>
  10 #include <mach/hardware.h>
  11 #include <mach/devices-common.h>
  12
  13 #define imx_ipu_core_entry_single(soc)                                  \
  14 {                                                                       \
  15         .iobase = soc ## _IPU_CTRL_BASE_ADDR,                           \
  16         .synirq = soc ## _INT_IPU_SYN,                                  \
  17         .errirq = soc ## _INT_IPU_ERR,                                  \
  18 }
  19
  20 #ifdef CONFIG_SOC_IMX31
  21 const struct imx_ipu_core_data imx31_ipu_core_data __initconst =
  22         imx_ipu_core_entry_single(MX31);
  23 #endif
  24
  25 #ifdef CONFIG_SOC_IMX35
  26 const struct imx_ipu_core_data imx35_ipu_core_data __initconst =
  27         imx_ipu_core_entry_single(MX35);
  28 #endif
  29
  30 static struct platform_device *imx_ipu_coredev __initdata;
  31
  32 struct platform_device *__init imx_add_ipu_core(
  33                 const struct imx_ipu_core_data *data)
  34 {
  35         /* The resource order is important! */
  36         struct resource res[] = {
  37                 {
  38                         .start = data->iobase,
  39                         .end = data->iobase + 0x5f,
  40                         .flags = IORESOURCE_MEM,
  41                 }, {
  42                         .start = data->iobase + 0x88,
  43                         .end = data->iobase + 0xb3,
  44                         .flags = IORESOURCE_MEM,
  45                 }, {
  46                         .start = data->synirq,
  47                         .end = data->synirq,
  48                         .flags = IORESOURCE_IRQ,
  49                 }, {
  50                         .start = data->errirq,
  51                         .end = data->errirq,
  52                         .flags = IORESOURCE_IRQ,
  53                 },
  54         };
  55
  56         return imx_ipu_coredev = imx_add_platform_device("ipu-core", -1,
  57                         res, ARRAY_SIZE(res), NULL, 0);
  58 }
  59
  60 struct platform_device *__init imx_alloc_mx3_camera(
  61                 const struct imx_ipu_core_data *data,
  62                 const struct mx3_camera_pdata *pdata)
  63 {
  64         struct resource res[] = {
  65                 {
  66                         .start = data->iobase + 0x60,
  67                         .end = data->iobase + 0x87,
  68                         .flags = IORESOURCE_MEM,
  69                 },
  70         };
  71         int ret = -ENOMEM;
  72         struct platform_device *pdev;
  73
  74         if (IS_ERR_OR_NULL(imx_ipu_coredev))
  75                 return ERR_PTR(-ENODEV);
  76
  77         pdev = platform_device_alloc("mx3-camera", 0);
  78         if (!pdev)
  79                 goto err;
  80
  81         pdev->dev.dma_mask = kmalloc(sizeof(*pdev->dev.dma_mask), GFP_KERNEL);
  82         if (!pdev->dev.dma_mask)
  83                 goto err;
  84
  85         *pdev->dev.dma_mask = DMA_BIT_MASK(32);
  86         pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
  87
  88         ret = platform_device_add_resources(pdev, res, ARRAY_SIZE(res));
  89         if (ret)
  90                 goto err;
  91
  92         if (pdata) {
  93                 struct mx3_camera_pdata *copied_pdata;
  94
  95                 ret = platform_device_add_data(pdev, pdata, sizeof(*pdata));
  96                 if (ret) {
  97 err:
  98                         kfree(pdev->dev.dma_mask);
  99                         platform_device_put(pdev);
 100                         return ERR_PTR(-ENODEV);
 101                 }
 102                 copied_pdata = dev_get_platdata(&pdev->dev);
 103                 copied_pdata->dma_dev = &imx_ipu_coredev->dev;
 104         }
 105
 106         return pdev;
 107 }
 108
 109 struct platform_device *__init imx_add_mx3_sdc_fb(
 110                 const struct imx_ipu_core_data *data,
 111                 struct mx3fb_platform_data *pdata)
 112 {
 113         struct resource res[] = {
 114                 {
 115                         .start = data->iobase + 0xb4,
 116                         .end = data->iobase + 0x1bf,
 117                         .flags = IORESOURCE_MEM,
 118                 },
 119         };
 120
 121         if (IS_ERR_OR_NULL(imx_ipu_coredev))
 122                 return ERR_PTR(-ENODEV);
 123
 124         pdata->dma_dev = &imx_ipu_coredev->dev;
 125
 126         return imx_add_platform_device_dmamask("mx3_sdc_fb", -1,
 127                         res, ARRAY_SIZE(res), pdata, sizeof(*pdata),
 128                         DMA_BIT_MASK(32));
 129 }