arch/arm/mach-imx/devices/platform-ipu-core.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Copyright (C) 2011 Pengutronix
   4  * Uwe Kleine-Koenig <u.kleine-koenig@pengutronix.de>
   5  */
   6 #include <linux/dma-mapping.h>
   7
   8 #include "../hardware.h"
   9 #include "devices-common.h"
  10
  11 #define imx_ipu_core_entry_single(soc)                                  \
  12 {                                                                       \
  13         .iobase = soc ## _IPU_CTRL_BASE_ADDR,                           \
  14         .synirq = soc ## _INT_IPU_SYN,                                  \
  15         .errirq = soc ## _INT_IPU_ERR,                                  \
  16 }
  17
  18 #ifdef CONFIG_SOC_IMX31
  19 const struct imx_ipu_core_data imx31_ipu_core_data __initconst =
  20         imx_ipu_core_entry_single(MX31);
  21 #endif
  22
  23 #ifdef CONFIG_SOC_IMX35
  24 const struct imx_ipu_core_data imx35_ipu_core_data __initconst =
  25         imx_ipu_core_entry_single(MX35);
  26 #endif
  27
  28 static struct platform_device *imx_ipu_coredev __initdata;
  29
  30 struct platform_device *__init imx_add_ipu_core(
  31                 const struct imx_ipu_core_data *data)
  32 {
  33         /* The resource order is important! */
  34         struct resource res[] = {
  35                 {
  36                         .start = data->iobase,
  37                         .end = data->iobase + 0x5f,
  38                         .flags = IORESOURCE_MEM,
  39                 }, {
  40                         .start = data->iobase + 0x88,
  41                         .end = data->iobase + 0xb3,
  42                         .flags = IORESOURCE_MEM,
  43                 }, {
  44                         .start = data->synirq,
  45                         .end = data->synirq,
  46                         .flags = IORESOURCE_IRQ,
  47                 }, {
  48                         .start = data->errirq,
  49                         .end = data->errirq,
  50                         .flags = IORESOURCE_IRQ,
  51                 },
  52         };
  53
  54         return imx_ipu_coredev = imx_add_platform_device("ipu-core", -1,
  55                         res, ARRAY_SIZE(res), NULL, 0);
  56 }
  57
  58 struct platform_device *__init imx_alloc_mx3_camera(
  59                 const struct imx_ipu_core_data *data,
  60                 const struct mx3_camera_pdata *pdata)
  61 {
  62         struct resource res[] = {
  63                 {
  64                         .start = data->iobase + 0x60,
  65                         .end = data->iobase + 0x87,
  66                         .flags = IORESOURCE_MEM,
  67                 },
  68         };
  69         int ret = -ENOMEM;
  70         struct platform_device *pdev;
  71
  72         if (IS_ERR_OR_NULL(imx_ipu_coredev))
  73                 return ERR_PTR(-ENODEV);
  74
  75         pdev = platform_device_alloc("mx3-camera", 0);
  76         if (!pdev)
  77                 return ERR_PTR(-ENOMEM);
  78
  79         pdev->dev.dma_mask = kmalloc(sizeof(*pdev->dev.dma_mask), GFP_KERNEL);
  80         if (!pdev->dev.dma_mask)
  81                 goto err;
  82
  83         *pdev->dev.dma_mask = DMA_BIT_MASK(32);
  84         pdev->dev.coherent_dma_mask = DMA_BIT_MASK(32);
  85
  86         ret = platform_device_add_resources(pdev, res, ARRAY_SIZE(res));
  87         if (ret)
  88                 goto err;
  89
  90         if (pdata) {
  91                 struct mx3_camera_pdata *copied_pdata;
  92
  93                 ret = platform_device_add_data(pdev, pdata, sizeof(*pdata));
  94                 if (ret) {
  95 err:
  96                         kfree(pdev->dev.dma_mask);
  97                         platform_device_put(pdev);
  98                         return ERR_PTR(-ENODEV);
  99                 }
 100                 copied_pdata = dev_get_platdata(&pdev->dev);
 101                 copied_pdata->dma_dev = &imx_ipu_coredev->dev;
 102         }
 103
 104         return pdev;
 105 }
 106
 107 struct platform_device *__init imx_add_mx3_sdc_fb(
 108                 const struct imx_ipu_core_data *data,
 109                 struct mx3fb_platform_data *pdata)
 110 {
 111         struct resource res[] = {
 112                 {
 113                         .start = data->iobase + 0xb4,
 114                         .end = data->iobase + 0x1bf,
 115                         .flags = IORESOURCE_MEM,
 116                 },
 117         };
 118
 119         if (IS_ERR_OR_NULL(imx_ipu_coredev))
 120                 return ERR_PTR(-ENODEV);
 121
 122         pdata->dma_dev = &imx_ipu_coredev->dev;
 123
 124         return imx_add_platform_device_dmamask("mx3_sdc_fb", -1,
 125                         res, ARRAY_SIZE(res), pdata, sizeof(*pdata),
 126                         DMA_BIT_MASK(32));
 127 }