17 Jul, 2020
1 commit
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The only way this driver can be probed by MFD via its parent device.
No other reference to 'microchip,at91sam9g45-usart-spi' exists in the kernel.
Fixes the following W=1 kernel build warning(s):
drivers/spi/spi-at91-usart.c:684:34: warning: ‘at91_usart_spi_dt_ids’ defined but not used [-Wunused-const-variable=]
684 | static const struct of_device_id at91_usart_spi_dt_ids[] = {
| ^~~~~~~~~~~~~~~~~~~~~Suggested-by: Alexandre Belloni
Signed-off-by: Lee Jones
Acked-by: Alexandre Belloni
Cc: Radu Pirea
Cc: Nicolas Ferre
Cc: Ludovic Desroches
Link: https://lore.kernel.org/r/20200717135424.2442271-13-lee.jones@linaro.org
Signed-off-by: Mark Brown
15 Nov, 2019
1 commit
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dma_request_slave_channel_reason() is:
#define dma_request_slave_channel_reason(dev, name) \
dma_request_chan(dev, name)Signed-off-by: Peter Ujfalusi
Acked-by: Nicolas Ferre
Link: https://lore.kernel.org/r/20191113094256.1108-2-peter.ujfalusi@ti.com
Signed-off-by: Mark Brown
08 May, 2019
1 commit
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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
Signed-off-by: Mark Brown
25 Mar, 2019
1 commit
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This checking is already done in __spi_validate_bits_per_word().
Signed-off-by: Axel Lin
Acked-by: Nicolas Ferre
Signed-off-by: Mark Brown
03 Dec, 2018
1 commit
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Fix build errors when CONFIG_PINCTRL is not enabled.
The header file 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
Cc: Radu Pirea
Cc: Mark Brown
Cc: linux-spi@vger.kernel.org
Signed-off-by: Mark Brown
27 Nov, 2018
1 commit
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This patch implements power management callback function for USART as
SPI driver.Signed-off-by: Radu Pirea
Signed-off-by: Mark Brown
11 Sep, 2018
1 commit
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Suggested-by: Radu Nicolae Pirea
Signed-off-by: Lee Jones
10 Sep, 2018
1 commit
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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
Reviewed-by: Andy Shevchenko
Reviwed-by: Mark Brown
Acked-by: Nicolas Ferre
Signed-off-by: Lee Jones
