-
Notifications
You must be signed in to change notification settings - Fork 0
Commit
This commit does not belong to any branch on this repository, and may belong to a fork outside of the repository.
ARM: S3C64XX: Use module identification for Cragganmore system builds
The Cragganmore system is modular with I2C based identification chips on the system allowing identification of the system build. Provide a stub I2C driver which parses the module IDs and uses them to select the appropriate audio subsystem components to register. To avoid confusion due to having the mini-driver in the system the driver is placed in a separate file. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
- Loading branch information
Mark Brown
authored and
Kukjin Kim
committed
Sep 19, 2011
1 parent
986afc9
commit d0f0b43
Showing
5 changed files
with
203 additions
and
81 deletions.
There are no files selected for viewing
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,23 @@ | ||
| /* Cragganmore 6410 shared definitions | ||
| * | ||
| * Copyright 2011 Wolfson Microelectronics plc | ||
| * Mark Brown <broonie@opensource.wolfsonmicro.com> | ||
| * | ||
| * This program is free software; you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License version 2 as | ||
| * published by the Free Software Foundation. | ||
| */ | ||
|
|
||
| #ifndef MACH_CRAG6410_H | ||
| #define MACH_CRAG6410_H | ||
|
|
||
| #include <linux/gpio.h> | ||
|
|
||
| #define BANFF_PMIC_IRQ_BASE IRQ_BOARD_START | ||
| #define GLENFARCLAS_PMIC_IRQ_BASE (IRQ_BOARD_START + 64) | ||
|
|
||
| #define PCA935X_GPIO_BASE GPIO_BOARD_START | ||
| #define CODEC_GPIO_BASE (GPIO_BOARD_START + 8) | ||
| #define GLENFARCLAS_PMIC_GPIO_BASE (GPIO_BOARD_START + 16) | ||
|
|
||
| #endif |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,173 @@ | ||
| /* Speyside modules for Cragganmore - board data probing | ||
| * | ||
| * Copyright 2011 Wolfson Microelectronics plc | ||
| * Mark Brown <broonie@opensource.wolfsonmicro.com> | ||
| * | ||
| * This program is free software; you can redistribute it and/or modify | ||
| * it under the terms of the GNU General Public License version 2 as | ||
| * published by the Free Software Foundation. | ||
| */ | ||
|
|
||
| #include <linux/module.h> | ||
| #include <linux/interrupt.h> | ||
| #include <linux/i2c.h> | ||
|
|
||
| #include <linux/mfd/wm831x/irq.h> | ||
| #include <linux/mfd/wm831x/gpio.h> | ||
|
|
||
| #include <sound/wm8996.h> | ||
| #include <sound/wm8962.h> | ||
| #include <sound/wm9081.h> | ||
|
|
||
| #include <mach/crag6410.h> | ||
|
|
||
| static struct wm8996_retune_mobile_config wm8996_retune[] = { | ||
| { | ||
| .name = "Sub LPF", | ||
| .rate = 48000, | ||
| .regs = { | ||
| 0x6318, 0x6300, 0x1000, 0x0000, 0x0004, 0x2000, 0xF000, | ||
| 0x0000, 0x0004, 0x2000, 0xF000, 0x0000, 0x0004, 0x2000, | ||
| 0xF000, 0x0000, 0x0004, 0x1000, 0x0800, 0x4000 | ||
| }, | ||
| }, | ||
| { | ||
| .name = "Sub HPF", | ||
| .rate = 48000, | ||
| .regs = { | ||
| 0x000A, 0x6300, 0x1000, 0x0000, 0x0004, 0x2000, 0xF000, | ||
| 0x0000, 0x0004, 0x2000, 0xF000, 0x0000, 0x0004, 0x2000, | ||
| 0xF000, 0x0000, 0x0004, 0x1000, 0x0800, 0x4000 | ||
| }, | ||
| }, | ||
| }; | ||
|
|
||
| static struct wm8996_pdata wm8996_pdata __initdata = { | ||
| .ldo_ena = S3C64XX_GPN(7), | ||
| .gpio_base = CODEC_GPIO_BASE, | ||
| .micdet_def = 1, | ||
| .inl_mode = WM8996_DIFFERRENTIAL_1, | ||
| .inr_mode = WM8996_DIFFERRENTIAL_1, | ||
|
|
||
| .irq_flags = IRQF_TRIGGER_RISING, | ||
|
|
||
| .gpio_default = { | ||
| 0x8001, /* GPIO1 == ADCLRCLK1 */ | ||
| 0x8001, /* GPIO2 == ADCLRCLK2, input due to CPU */ | ||
| 0x0141, /* GPIO3 == HP_SEL */ | ||
| 0x0002, /* GPIO4 == IRQ */ | ||
| 0x020e, /* GPIO5 == CLKOUT */ | ||
| }, | ||
|
|
||
| .retune_mobile_cfgs = wm8996_retune, | ||
| .num_retune_mobile_cfgs = ARRAY_SIZE(wm8996_retune), | ||
| }; | ||
|
|
||
| static struct wm8962_pdata wm8962_pdata __initdata = { | ||
| .gpio_init = { | ||
| 0, | ||
| WM8962_GPIO_FN_OPCLK, | ||
| WM8962_GPIO_FN_DMICCLK, | ||
| 0, | ||
| 0x8000 | WM8962_GPIO_FN_DMICDAT, | ||
| WM8962_GPIO_FN_IRQ, /* Open drain mode */ | ||
| }, | ||
| .irq_active_low = true, | ||
| }; | ||
|
|
||
| static struct wm9081_pdata wm9081_pdata __initdata = { | ||
| .irq_high = false, | ||
| .irq_cmos = false, | ||
| }; | ||
|
|
||
| static const struct i2c_board_info wm1254_devs[] = { | ||
| { I2C_BOARD_INFO("wm8996", 0x1a), | ||
| .platform_data = &wm8996_pdata, | ||
| .irq = GLENFARCLAS_PMIC_IRQ_BASE + WM831X_IRQ_GPIO_2, | ||
| }, | ||
| { I2C_BOARD_INFO("wm9081", 0x6c), | ||
| .platform_data = &wm9081_pdata, }, | ||
| }; | ||
|
|
||
| static const struct i2c_board_info wm1259_devs[] = { | ||
| { I2C_BOARD_INFO("wm8962", 0x1a), | ||
| .platform_data = &wm8962_pdata, | ||
| .irq = GLENFARCLAS_PMIC_IRQ_BASE + WM831X_IRQ_GPIO_2, | ||
| }, | ||
| }; | ||
|
|
||
|
|
||
| static __devinitdata const struct { | ||
| u8 id; | ||
| const char *name; | ||
| const struct i2c_board_info *i2c_devs; | ||
| int num_i2c_devs; | ||
| } gf_mods[] = { | ||
| { .id = 0x01, .name = "1250-EV1 Springbank" }, | ||
| { .id = 0x02, .name = "1251-EV1 Jura" }, | ||
| { .id = 0x03, .name = "1252-EV1 Glenlivet" }, | ||
| { .id = 0x11, .name = "6249-EV2 Glenfarclas", }, | ||
| { .id = 0x21, .name = "1275-EV1 Mortlach" }, | ||
| { .id = 0x25, .name = "1274-EV1 Glencadam" }, | ||
| { .id = 0x31, .name = "1253-EV1 Tomatin", }, | ||
| { .id = 0x39, .name = "1254-EV1 Dallas Dhu", | ||
| .i2c_devs = wm1254_devs, .num_i2c_devs = ARRAY_SIZE(wm1254_devs) }, | ||
| { .id = 0x3a, .name = "1259-EV1 Tobermory", | ||
| .i2c_devs = wm1259_devs, .num_i2c_devs = ARRAY_SIZE(wm1259_devs) }, | ||
| { .id = 0x3b, .name = "1255-EV1 Kilchoman" }, | ||
| { .id = 0x3c, .name = "1273-EV1 Longmorn" }, | ||
| }; | ||
|
|
||
| static __devinit int wlf_gf_module_probe(struct i2c_client *i2c, | ||
| const struct i2c_device_id *i2c_id) | ||
| { | ||
| int ret, i, j, id, rev; | ||
|
|
||
| ret = i2c_smbus_read_byte_data(i2c, 0); | ||
| if (ret < 0) { | ||
| dev_err(&i2c->dev, "Failed to read ID: %d\n", ret); | ||
| return ret; | ||
| } | ||
|
|
||
| id = (ret & 0xfe) >> 2; | ||
| rev = ret & 0x3; | ||
| for (i = 0; i < ARRAY_SIZE(gf_mods); i++) | ||
| if (id == gf_mods[i].id) | ||
| break; | ||
|
|
||
| if (i < ARRAY_SIZE(gf_mods)) { | ||
| dev_info(&i2c->dev, "%s revision %d\n", | ||
| gf_mods[i].name, rev + 1); | ||
| for (j = 0; j < gf_mods[i].num_i2c_devs; j++) { | ||
| if (!i2c_new_device(i2c->adapter, | ||
| &(gf_mods[i].i2c_devs[j]))) | ||
| dev_err(&i2c->dev, | ||
| "Failed to register dev: %d\n", ret); | ||
| } | ||
| } else { | ||
| dev_warn(&i2c->dev, "Unknown module ID %d revision %d\n", | ||
| id, rev); | ||
| } | ||
|
|
||
| return 0; | ||
| } | ||
|
|
||
| static const struct i2c_device_id wlf_gf_module_id[] = { | ||
| { "wlf-gf-module", 0 }, | ||
| { } | ||
| }; | ||
|
|
||
| static struct i2c_driver wlf_gf_module_driver = { | ||
| .driver = { | ||
| .name = "wlf-gf-module", | ||
| .owner = THIS_MODULE, | ||
| }, | ||
| .probe = wlf_gf_module_probe, | ||
| .id_table = wlf_gf_module_id, | ||
| }; | ||
|
|
||
| static int __init wlf_gf_module_register(void) | ||
| { | ||
| return i2c_add_driver(&wlf_gf_module_driver); | ||
| } | ||
| module_init(wlf_gf_module_register); |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters