arch/arm/plat-samsung/platformdata.c

   1 /* linux/arch/arm/plat-samsung/platformdata.c
   2  *
   3  * Copyright 2010 Ben Dooks <ben-linux <at> fluff.org>
   4  *
   5  * Helper for platform data setting
   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 version 2 as
   9  * published by the Free Software Foundation.
  10 */
  11
  12 #include <linux/kernel.h>
  13 #include <linux/slab.h>
  14 #include <linux/string.h>
  15 #include <linux/platform_device.h>
  16
  17 #include <plat/devs.h>
  18 #include <plat/sdhci.h>
  19
  20 void __init *s3c_set_platdata(void *pd, size_t pdsize,
  21                               struct platform_device *pdev)
  22 {
  23         void *npd;
  24
  25         if (!pd) {
  26                 /* too early to use dev_name(), may not be registered */
  27                 printk(KERN_ERR "%s: no platform data supplied\n", pdev->name);
  28                 return NULL;
  29         }
  30
  31         npd = kmemdup(pd, pdsize, GFP_KERNEL);
  32         if (!npd) {
  33                 printk(KERN_ERR "%s: cannot clone platform data\n", pdev->name);
  34                 return NULL;
  35         }
  36
  37         pdev->dev.platform_data = npd;
  38         return npd;
  39 }
  40
  41 void s3c_sdhci_set_platdata(struct s3c_sdhci_platdata *pd,
  42                              struct s3c_sdhci_platdata *set)
  43 {
  44         set->cd_type = pd->cd_type;
  45         set->ext_cd_init = pd->ext_cd_init;
  46         set->ext_cd_cleanup = pd->ext_cd_cleanup;
  47         set->ext_cd_gpio = pd->ext_cd_gpio;
  48         set->ext_cd_gpio_invert = pd->ext_cd_gpio_invert;
  49
  50         if (pd->max_width)
  51                 set->max_width = pd->max_width;
  52         if (pd->cfg_gpio)
  53                 set->cfg_gpio = pd->cfg_gpio;
  54         if (pd->host_caps)
  55                 set->host_caps |= pd->host_caps;
  56         if (pd->clk_type)
  57                 set->clk_type = pd->clk_type;
  58 }