arch/arm/mach-omap2/twl-common.c

   1 /*
   2  * twl-common.c
   3  *
   4  * Copyright (C) 2011 Texas Instruments, Inc..
   5  * Author: Peter Ujfalusi <peter.ujfalusi@ti.com>
   6  *
   7  * This program is free software; you can redistribute it and/or
   8  * modify it under the terms of the GNU General Public License
   9  * version 2 as published by the Free Software Foundation.
  10  *
  11  * This program is distributed in the hope that it will be useful, but
  12  * WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
  19  * 02110-1301 USA
  20  *
  21  */
  22
  23 #include <linux/i2c.h>
  24 #include <linux/i2c/twl.h>
  25 #include <linux/gpio.h>
  26 #include <linux/string.h>
  27 #include <linux/phy/phy.h>
  28 #include <linux/regulator/machine.h>
  29 #include <linux/regulator/fixed.h>
  30
  31 #include "soc.h"
  32 #include "twl-common.h"
  33 #include "pm.h"
  34 #include "voltage.h"
  35 #include "mux.h"
  36
  37 static struct i2c_board_info __initdata pmic_i2c_board_info = {
  38         .addr           = 0x48,
  39         .flags          = I2C_CLIENT_WAKE,
  40 };
  41
  42 void __init omap_pmic_init(int bus, u32 clkrate,
  43                            const char *pmic_type, int pmic_irq,
  44                            struct twl4030_platform_data *pmic_data)
  45 {
  46         omap_mux_init_signal("sys_nirq", OMAP_PIN_INPUT_PULLUP | OMAP_PIN_OFF_WAKEUPENABLE);
  47         strlcpy(pmic_i2c_board_info.type, pmic_type,
  48                 sizeof(pmic_i2c_board_info.type));
  49         pmic_i2c_board_info.irq = pmic_irq;
  50         pmic_i2c_board_info.platform_data = pmic_data;
  51
  52         omap_register_i2c_bus(bus, clkrate, &pmic_i2c_board_info, 1);
  53 }
  54
  55 void __init omap_pmic_late_init(void)
  56 {
  57         /* Init the OMAP TWL parameters (if PMIC has been registerd) */
  58         if (!pmic_i2c_board_info.irq)
  59                 return;
  60
  61         omap3_twl_init();
  62         omap4_twl_init();
  63 }
  64
  65 #if IS_ENABLED(CONFIG_SND_OMAP_SOC_OMAP_TWL4030)
  66 #include <linux/platform_data/omap-twl4030.h>
  67
  68 /* Commonly used configuration */
  69 static struct omap_tw4030_pdata omap_twl4030_audio_data;
  70
  71 static struct platform_device audio_device = {
  72         .name           = "omap-twl4030",
  73         .id             = -1,
  74 };
  75
  76 void omap_twl4030_audio_init(char *card_name,
  77                                     struct omap_tw4030_pdata *pdata)
  78 {
  79         if (!pdata)
  80                 pdata = &omap_twl4030_audio_data;
  81
  82         pdata->card_name = card_name;
  83
  84         audio_device.dev.platform_data = pdata;
  85         platform_device_register(&audio_device);
  86 }
  87
  88 #else /* SOC_OMAP_TWL4030 */
  89 void omap_twl4030_audio_init(char *card_name,
  90                                     struct omap_tw4030_pdata *pdata)
  91 {
  92         return;
  93 }
  94 #endif /* SOC_OMAP_TWL4030 */