From 7230ca2380dbf15ab05531aee67a38f32af9a0e9 Mon Sep 17 00:00:00 2001 From: Jean-Christophe PLAGNIOL-VILLARD Date: Tue, 6 Nov 2012 20:33:36 +0100 Subject: at91rm9200: fix spi cs support the rm9200 have a errata the cs0 must be used via hw cs not gpio Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD Signed-off-by: Sascha Hauer --- arch/arm/mach-at91/at91rm9200_devices.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-at91/at91rm9200_devices.c b/arch/arm/mach-at91/at91rm9200_devices.c index 8cb2f57751..c9ceef9654 100644 --- a/arch/arm/mach-at91/at91rm9200_devices.c +++ b/arch/arm/mach-at91/at91rm9200_devices.c @@ -182,7 +182,12 @@ void at91_add_device_spi(int spi_id, struct at91_spi_platform_data *pdata) cs_pin = pdata->chipselect[i]; /* enable chip-select pin */ - if (cs_pin > 0) + if (!gpio_is_valid(cs_pin)) + continue; + + if (cs_pin == AT91_PIN_PA3) + at91_set_A_periph(cs_pin, 0); + else at91_set_gpio_output(cs_pin, 1); } -- cgit v1.2.3