diff options
Diffstat (limited to 'target/linux/brcm2708/patches-3.18/0080-I2C-Only-register-the-I2C-device-for-the-current-boa.patch')
| -rwxr-xr-x | target/linux/brcm2708/patches-3.18/0080-I2C-Only-register-the-I2C-device-for-the-current-boa.patch | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-3.18/0080-I2C-Only-register-the-I2C-device-for-the-current-boa.patch b/target/linux/brcm2708/patches-3.18/0080-I2C-Only-register-the-I2C-device-for-the-current-boa.patch new file mode 100755 index 0000000..aba4202 --- /dev/null +++ b/target/linux/brcm2708/patches-3.18/0080-I2C-Only-register-the-I2C-device-for-the-current-boa.patch @@ -0,0 +1,49 @@ +From 6a63fb6bd7120af9a760fa0f2db9461bfcf29791 Mon Sep 17 00:00:00 2001 +From: Serge Schneider <serge@raspberrypi.org> +Date: Wed, 3 Sep 2014 14:44:22 +0100 +Subject: [PATCH 080/114] I2C: Only register the I2C device for the current + board revision + +--- + arch/arm/mach-bcm2708/bcm2708.c | 14 ++++++++++++-- + 1 file changed, 12 insertions(+), 2 deletions(-) + +diff --git a/arch/arm/mach-bcm2708/bcm2708.c b/arch/arm/mach-bcm2708/bcm2708.c +index 2c6a29d..b36037b 100644 +--- a/arch/arm/mach-bcm2708/bcm2708.c ++++ b/arch/arm/mach-bcm2708/bcm2708.c +@@ -93,6 +93,7 @@ static unsigned disk_led_active_low = 1; + static unsigned reboot_part = 0; + static unsigned w1_gpio_pin = W1_GPIO; + static unsigned w1_gpio_pullup = W1_PULLUP; ++static bool vc_i2c_override = false; + + static unsigned use_dt = 0; + +@@ -862,8 +863,15 @@ void __init bcm2708_init(void) + bcm_register_device(&bcm2835_thermal_device); + + bcm_register_device_dt(&bcm2708_spi_device); +- bcm_register_device_dt(&bcm2708_bsc0_device); +- bcm_register_device_dt(&bcm2708_bsc1_device); ++ ++ if (vc_i2c_override) { ++ bcm_register_device_dt(&bcm2708_bsc0_device); ++ bcm_register_device_dt(&bcm2708_bsc1_device); ++ } else if ((boardrev & 0xffffff) == 0x2 || (boardrev & 0xffffff) == 0x3) { ++ bcm_register_device_dt(&bcm2708_bsc0_device); ++ } else { ++ bcm_register_device_dt(&bcm2708_bsc1_device); ++ } + + #if defined(CONFIG_SND_BCM2708_SOC_I2S) || defined(CONFIG_SND_BCM2708_SOC_I2S_MODULE) + bcm_register_device_dt(&bcm2708_i2s_device); +@@ -1093,3 +1101,5 @@ module_param(disk_led_active_low, uint, 0644); + module_param(reboot_part, uint, 0644); + module_param(w1_gpio_pin, uint, 0644); + module_param(w1_gpio_pullup, uint, 0644); ++module_param(vc_i2c_override, bool, 0644); ++MODULE_PARM_DESC(vc_i2c_override, "Allow the use of VC's I2C peripheral."); +-- +1.8.3.2 + |