linux-dev - Linux kernel development work

Age	Commit message (Collapse)	Author	Files	Lines
2019-11-15	spi: at91-usart: Use dma_request_chan() directly for channel request	Peter Ujfalusi	1	-2/+2
	dma_request_slave_channel_reason() is: #define dma_request_slave_channel_reason(dev, name) \ dma_request_chan(dev, name) Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Link: https://lore.kernel.org/r/20191113094256.1108-2-peter.ujfalusi@ti.com Signed-off-by: Mark Brown <broonie@kernel.org>
2019-05-08	spi: at91-usart: add DMA support	Radu Pirea	1	-2/+219
	This patch adds support for DMA. Transfers are done with dma only if they are longer than 16 bytes in order to achieve a better performance. DMA setup introduces a little overhead and for transfers shorter than 16 bytes there is no performance improvement. Signed-off-by: Radu Pirea <radu_nicolae.pirea@upb.ro> Signed-off-by: Mark Brown <broonie@kernel.org>
2019-03-25	spi: at91-usart: Remove duplicated checking for spi->bits_per_word	Axel Lin	1	-7/+1
	This checking is already done in __spi_validate_bits_per_word(). Signed-off-by: Axel Lin <axel.lin@ingics.com> Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-12-03	spi: fix spi-at91-usart.c build errors when PINCTRL is not set	Randy Dunlap	1	-0/+1
	Fix build errors when CONFIG_PINCTRL is not enabled. The header file <linux/pinctrl/consumer.h> handles both CONFIG_PINCTRL enabled and disabled cases. CC [M] drivers/spi/spi-at91-usart.o ../drivers/spi/spi-at91-usart.c: In function 'at91_usart_spi_runtime_suspend': ../drivers/spi/spi-at91-usart.c:409:2: error: implicit declaration of function 'pinctrl_pm_select_sleep_state' [-Werror=implicit-function-declaration] pinctrl_pm_select_sleep_state(dev); ../drivers/spi/spi-at91-usart.c: In function 'at91_usart_spi_runtime_resume': ../drivers/spi/spi-at91-usart.c:419:2: error: implicit declaration of function 'pinctrl_pm_select_default_state' [-Werror=implicit-function-declaration] pinctrl_pm_select_default_state(dev); Signed-off-by: Randy Dunlap <rdunlap@infradead.org> Cc: Radu Pirea <radu.pirea@microchip.com> Cc: Mark Brown <broonie@kernel.org> Cc: linux-spi@vger.kernel.org Signed-off-by: Mark Brown <broonie@kernel.org>
2018-11-27	spi: at91-usart: add power management support	Radu Pirea	1	-0/+61
	This patch implements power management callback function for USART as SPI driver. Signed-off-by: Radu Pirea <radu_nicolae.pirea@upb.ro> Signed-off-by: Mark Brown <broonie@kernel.org>
2018-09-11	spi: at91-usart: Make local functions static	Lee Jones	1	-7/+7
	Suggested-by: Radu Nicolae Pirea <pirea.radu@gmail.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
2018-09-10	spi: at91-usart: Add driver for at91-usart as SPI	Radu Pirea	1	-0/+432
	This is the driver for at91-usart in spi mode. The USART IP can be configured to work in many modes and one of them is SPI. The driver was tested on sama5d3-xplained and sama5d4-xplained boards with enc28j60 ethernet controller as slave. Signed-off-by: Radu Pirea <radu.pirea@microchip.com> Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com> Reviwed-by: Mark Brown <broonie@kernel.org> Acked-by: Nicolas Ferre <nicolas.ferre@microchip.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>