From 4aceea2088e04724900a9c6f22c48d99293206f2 Mon Sep 17 00:00:00 2001 From: Stefan Roese Date: Wed, 22 Oct 2014 12:13:10 +0200 Subject: [PATCH] spi: kirkwood_spi.c: Compile MPP (pin-mux) only for kirkwood SoC's Compile the pin multiplexing only on Kirkwood platforms. As the Armada XP doesn't need it. Signed-off-by: Stefan Roese Reviewed-by: Jagannadha Sutradharudu Teki Tested-by: Luka Perkov Acked-by: Prafulla Wadaskar --- drivers/spi/kirkwood_spi.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/spi/kirkwood_spi.c b/drivers/spi/kirkwood_spi.c index 9710f12e12..ce2ba96008 100644 --- a/drivers/spi/kirkwood_spi.c +++ b/drivers/spi/kirkwood_spi.c @@ -13,22 +13,28 @@ #include #include #include +#ifdef CONFIG_KIRKWOOD #include +#endif #include static struct kwspi_registers *spireg = (struct kwspi_registers *)KW_SPI_BASE; +#ifdef CONFIG_KIRKWOOD static u32 cs_spi_mpp_back[2]; +#endif struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs, unsigned int max_hz, unsigned int mode) { struct spi_slave *slave; u32 data; +#ifdef CONFIG_KIRKWOOD static const u32 kwspi_mpp_config[2][2] = { { MPP0_SPI_SCn, 0 }, /* if cs == 0 */ { MPP7_SPI_SCn, 0 } /* if cs != 0 */ }; +#endif if (!spi_cs_is_valid(bus, cs)) return NULL; @@ -51,15 +57,19 @@ struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs, writel(KWSPI_SMEMRDIRQ, &spireg->irq_cause); writel(KWSPI_IRQMASK, &spireg->irq_mask); +#ifdef CONFIG_KIRKWOOD /* program mpp registers to select SPI_CSn */ kirkwood_mpp_conf(kwspi_mpp_config[cs ? 1 : 0], cs_spi_mpp_back); +#endif return slave; } void spi_free_slave(struct spi_slave *slave) { +#ifdef CONFIG_KIRKWOOD kirkwood_mpp_conf(cs_spi_mpp_back, NULL); +#endif free(slave); } -- 2.25.1