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path: root/drivers/spi/spi-pic32.c
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2017-07-26spi: pic32: fix spelling mistakes on macro namesColin Ian King
Trivial fix to spelling mistakes macros; fix EMPTY spellings: RX_FIFO_EMTPY -> RX_FIFO_EMPTY TX_FIFO_EMTPY -> TX_FIFO_EMPTY Note that there are no other occurrances of these macros in the source. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-07-24spi: pic32: fixup wait_for_completion_timeout return handlingNicholas Mc Guire
wait_for_completion_timeout returns unsigned long not int so the check for <= 0 should be == 0 here. Signed-off-by: Nicholas Mc Guire <hofrat@osadl.org> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-04-29spi: pic32: Fix checking return value of devm_ioremap_resourceAxel Lin
devm_ioremap_resource() returns ERR_PTR on error. Also remove the redundant dev_err message, the implementation of devm_ioremap_resource() already print error messages on error paths. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-04-26spi: pic32: Set proper bits_per_word_maskAxel Lin
This driver only supports 8/16/32 bits_per_word, so set master->bits_per_word_mask accordingly. With this change, we can remove the spi->bits_per_word checking in pic32_spi_setup as it's done by spi core. Signed-off-by: Axel Lin <axel.lin@ingics.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2016-04-04spi: spi-pic32: Add PIC32 SPI master driverPurna Chandra Mandal
The PIC32 SPI driver is capable of performing SPI transfers using PIO or external DMA engine. GPIO controlled /CS support is made default in the driver for correct operation of the controller. This can be enabled by adding "cs-gpios" property of the SPI node in board dts file. Signed-off-by: Purna Chandra Mandal <purna.mandal@microchip.com> Signed-off-by: Mark Brown <broonie@kernel.org>