From 0c03a1dd5bd8a37932ae1d519156172affef22fd Mon Sep 17 00:00:00 2001 From: Erik Gilling Date: Thu, 22 Apr 2010 15:58:25 -0700 Subject: spi: add spi_tegra driver v2 changes: from Thierry Reding: * add "select TEGRA_SYSTEM_DMA" to Kconfig from Grant Likely: * add oneline description to header * inline references to DRIVER_NAME * inline references to BUSY_TIMEOUT * open coded bytes_per_word() * spi_readl/writel -> spi_tegra_readl/writel * move transfer validation to spi_tegra_transfer * don't request_mem_region iomem as platform bus does that for us * __exit -> __devexit v3 changes: from Russell King: * put request_mem_region back int from Grant Likely: * remove #undef DEBUG * add SLINK_ to register bit defines * remove unused bytes_per_word * make spi_tegra_readl/writel static linine * various refactoring for clarity * mark err if BSY bit is not cleared after 1000 retries * move spinlock to protect setting of RDY bit * subsys_initcall -> module_init v3 changes: from Grant Likely: * update spi_tegra to use PTR_ERRless dma API v4 changes: from Grant Likely: * remove empty spi_tegra_cleanup fucntion * allow device ids of -1 Signed-off-by: Erik Gilling Acked-by: Grant Likely Cc: Thierry Reding Cc: Russell King spi: tegra: cleanups from upstream review Change-Id: Icecf7e64efcb39de072a15234ba1faa4bad40d25 Signed-off-by: Erik Gilling --- drivers/spi/Kconfig | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'drivers/spi/Kconfig') diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig index 4b9eec6..78f9fd0 100644 --- a/drivers/spi/Kconfig +++ b/drivers/spi/Kconfig @@ -329,6 +329,13 @@ config SPI_STMP3XXX help SPI driver for Freescale STMP37xx/378x SoC SSP interface +config SPI_TEGRA + tristate "Nvidia Tegra SPI controller" + depends on ARCH_TEGRA + select TEGRA_SYSTEM_DMA + help + SPI driver for NVidia Tegra SoCs + config SPI_TOPCLIFF_PCH tristate "Topcliff PCH SPI Controller" depends on PCI -- cgit v1.1