From mboxrd@z Thu Jan 1 00:00:00 1970 From: v Subject: card based on s3C2440: s3c2410-spi s3c2410-spi.0: Failed to register SPI master Date: Wed, 09 Jun 2010 12:57:06 +0200 Message-ID: <4C0F7382.50209@induct.fr> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: spi-devel-general-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org Return-path: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: spi-devel-general-bounces-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org List-Id: linux-spi.vger.kernel.org Hello, I'm using a UTU2440 dev kit (http://youtiyou.com/SamsungS3C2440EK.aspx) based on a s3c2440. I try to enable spidev device on the board. I add the following lines for use spi on the platform is the kernel in the file: arch/arm/mach-s3c2440/mach-utu2440.c: /* SPI driver info */ static struct spi_board_info __initdata_refok utu2440_spi_board_info[] = { //SPI Port 0 { .modalias = "spidev", .max_speed_hz = 25000000, //25 MHz .bus_num = 0, .chip_select = 0, .mode = SPI_MODE_3, }, } static void utu2440_spi0_cs(struct s3c2410_spi_info *spi, int cs, int pol) { s3c2410_gpio_setpin(S3C2410_GPG2, pol); } static struct s3c2410_spi_info utu2440_spi0_platdata = { //.pin_cs = S3C2410_GPG2, .board_size = ARRAY_SIZE(utu2440_spi_board_info), .board_info = utu2440_spi_board_info, .set_cs = utu2440_spi0_cs, }; I activate the SPI_DEV in the kernel with the following lines in .config kernel configuration: # # SPI support # CONFIG_SPI=y CONFIG_SPI_MASTER=y # # SPI Master Controller Drivers # CONFIG_SPI_BITBANG=y CONFIG_SPI_S3C24XX=y # CONFIG_SPI_S3C24XX_GPIO is not set # # SPI Protocol Masters # # CONFIG_SPI_AT25 is not set CONFIG_SPI_SPIDEV=y Unfortunately it didn't work, during the boot i have the following error: s3c2410-spi s3c2410-spi.0: Failed to register SPI master s3c2410-spi: probe of s3c2410-spi.0 failed with error -22 Is somebody can help me to complete the code ? Best regards Vincent PS: sorry for my poor english ------------------------------------------------------------------------------ ThinkGeek and WIRED's GeekDad team up for the Ultimate GeekDad Father's Day Giveaway. ONE MASSIVE PRIZE to the lucky parental unit. See the prize list and enter to win: http://p.sf.net/sfu/thinkgeek-promo