[PATCH] nhk8815: fix i2c-gpio initialization
From: Alessandro Rubini <hidden>
Date: 2009-12-17 09:34:34
Subsystem:
arm port, arm/nomadik/ux500 architectures, the rest · Maintainers:
Russell King, Linus Walleij, Linus Torvalds
From: Alessandro Rubini <redacted> Signed-off-by: Alessandro Rubini <redacted> Acked-by: Andrea Gallo <redacted> --- arch/arm/mach-nomadik/i2c-8815nhk.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/arch/arm/mach-nomadik/i2c-8815nhk.c b/arch/arm/mach-nomadik/i2c-8815nhk.c
index abfe25a..7045ec1 100644
--- a/arch/arm/mach-nomadik/i2c-8815nhk.c
+++ b/arch/arm/mach-nomadik/i2c-8815nhk.c@@ -43,12 +43,17 @@ static struct platform_device nhk8815_i2c_dev1 = { static int __init nhk8815_i2c_init(void) { + /* i2c-gpio switches from out to in and back, so force out data to 0 */ nmk_gpio_set_mode(nhk8815_i2c_data0.scl_pin, NMK_GPIO_ALT_GPIO); nmk_gpio_set_mode(nhk8815_i2c_data0.sda_pin, NMK_GPIO_ALT_GPIO); + gpio_set_value(nhk8815_i2c_data0.sda_pin, 0); + gpio_set_value(nhk8815_i2c_data0.scl_pin, 0); platform_device_register(&nhk8815_i2c_dev0); nmk_gpio_set_mode(nhk8815_i2c_data1.scl_pin, NMK_GPIO_ALT_GPIO); nmk_gpio_set_mode(nhk8815_i2c_data1.sda_pin, NMK_GPIO_ALT_GPIO); + gpio_set_value(nhk8815_i2c_data1.sda_pin, 0); + gpio_set_value(nhk8815_i2c_data1.scl_pin, 0); platform_device_register(&nhk8815_i2c_dev1); return 0;
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1.6.0.2