1 From 6a63fb6bd7120af9a760fa0f2db9461bfcf29791 Mon Sep 17 00:00:00 2001
2 From: Serge Schneider <serge@raspberrypi.org>
3 Date: Wed, 3 Sep 2014 14:44:22 +0100
4 Subject: [PATCH 080/114] I2C: Only register the I2C device for the current
8 arch/arm/mach-bcm2708/bcm2708.c | 14 ++++++++++++--
9 1 file changed, 12 insertions(+), 2 deletions(-)
11 diff --git a/arch/arm/mach-bcm2708/bcm2708.c b/arch/arm/mach-bcm2708/bcm2708.c
12 index 2c6a29d..b36037b 100644
13 --- a/arch/arm/mach-bcm2708/bcm2708.c
14 +++ b/arch/arm/mach-bcm2708/bcm2708.c
15 @@ -93,6 +93,7 @@ static unsigned disk_led_active_low = 1;
16 static unsigned reboot_part = 0;
17 static unsigned w1_gpio_pin = W1_GPIO;
18 static unsigned w1_gpio_pullup = W1_PULLUP;
19 +static bool vc_i2c_override = false;
21 static unsigned use_dt = 0;
23 @@ -862,8 +863,15 @@ void __init bcm2708_init(void)
24 bcm_register_device(&bcm2835_thermal_device);
26 bcm_register_device_dt(&bcm2708_spi_device);
27 - bcm_register_device_dt(&bcm2708_bsc0_device);
28 - bcm_register_device_dt(&bcm2708_bsc1_device);
30 + if (vc_i2c_override) {
31 + bcm_register_device_dt(&bcm2708_bsc0_device);
32 + bcm_register_device_dt(&bcm2708_bsc1_device);
33 + } else if ((boardrev & 0xffffff) == 0x2 || (boardrev & 0xffffff) == 0x3) {
34 + bcm_register_device_dt(&bcm2708_bsc0_device);
36 + bcm_register_device_dt(&bcm2708_bsc1_device);
39 #if defined(CONFIG_SND_BCM2708_SOC_I2S) || defined(CONFIG_SND_BCM2708_SOC_I2S_MODULE)
40 bcm_register_device_dt(&bcm2708_i2s_device);
41 @@ -1093,3 +1101,5 @@ module_param(disk_led_active_low, uint, 0644);
42 module_param(reboot_part, uint, 0644);
43 module_param(w1_gpio_pin, uint, 0644);
44 module_param(w1_gpio_pullup, uint, 0644);
45 +module_param(vc_i2c_override, bool, 0644);
46 +MODULE_PARM_DESC(vc_i2c_override, "Allow the use of VC's I2C peripheral.");