From 13b10301b858e355613bfc6dc297580bf34d3fb5 Mon Sep 17 00:00:00 2001 From: Matthias Seidel Date: Sun, 4 Sep 2016 02:04:49 +0200 Subject: spi: dw: fix multiple slaves with different baudrates Add current master clock to dws struct and compare it against the requestedtransfer speed. Update clock divider only if necessary. Signed-off-by: Matthias Seidel Signed-off-by: Mark Brown --- drivers/spi/spi-dw.h | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/spi/spi-dw.h') diff --git a/drivers/spi/spi-dw.h b/drivers/spi/spi-dw.h index 61bc3cbab38d..c21ca02f8ec5 100644 --- a/drivers/spi/spi-dw.h +++ b/drivers/spi/spi-dw.h @@ -123,6 +123,7 @@ struct dw_spi { u8 n_bytes; /* current is a 1/2 bytes op */ u32 dma_width; irqreturn_t (*transfer_handler)(struct dw_spi *dws); + u32 current_freq; /* frequency in hz */ /* DMA info */ int dma_inited; -- cgit v1.2.3