kernel/linux.git/include/linux/spi/spi.h, branch v5.0.3

Merge branch 'topic/3wire-gpio' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi into spi-4.21 mode conflict

2018-12-04T17:31:49+00:00

spi: add support for octal mode I/O data transfer

2018-12-03T17:14:53+00:00

Add flags for Octal mode I/O data transfer Required for the SPI controller which can do the data transfer (TX/RX) on 8 data lines e.g. NXP FlexSPI controller. SPI_TX_OCTAL: transmit with 8 wires SPI_RX_OCTAL: receive with 8 wires Signed-off-by: Yogesh Gaur Reviewed-by: Boris Brezillon Signed-off-by: Mark Brown

spi: gpio: Support 3WIRE high-impedance turn-around

2018-11-07T16:15:49+00:00

Some devices such as the TPO TPG110 display panel require a "high-impedance turn-around", in effect a clock cycle after switching the line from output to input mode. Support this in the GPIO driver to begin with. Other driver may implement it if they can, it is unclear if this can be achieved with anything else than GPIO bit-banging. Cc: Andrzej Hajda Acked-by: Lorenzo Bianconi Signed-off-by: Linus Walleij Signed-off-by: Mark Brown

Merge remote-tracking branch 'spi/topic/of' into spi-next

2018-10-21T16:00:17+00:00

spi: Add driver_override SPI device attribute

2018-10-10T12:40:45+00:00

This attribute works the same was as the identically named attribute for PCI, AMBA, and platform devices. For reference, see: commit 3cf385713460 ("ARM: 8256/1: driver coamba: add device binding path 'driver_override'") commit 3d713e0e382e ("driver core: platform: add device binding path 'driver_override'") commit 782a985d7af2 ("PCI: Introduce new device binding path using pci_dev.driver_override") If the name of a driver is written to this attribute, then the device will bind to the named driver and only the named driver. The device will bind to the driver even if the driver does not list the device in its id table. This behavior is different than the driver's bind attribute, which only allows binding to devices that are listed as supported by the driver. It can be used to bind a generic driver, like spidev, to a device. Signed-off-by: Trent Piepho Reviewed-by: Jan KundrÃ¡t Tested-by: Jan KundrÃ¡t Reviewed-by: Geert Uytterhoeven Signed-off-by: Mark Brown

spi: make OF helper available for others

2018-09-27T22:36:03+00:00

The of_find_spi_device_by_node() helper function is useful for other modules too. Export the funciton as GPL like all other spi helper functions and make it available if CONFIG_OF is enabled, because it isn't related to the CONFIG_OF_DYNAMIC context. Finally add a stub if CONFIG_OF isn't enabled, so others must not care about it. Signed-off-by: Marco Felsch Signed-off-by: Mark Brown

spi: switch to SPDX license identifier

2018-09-27T22:30:48+00:00

Use the appropriate SPDX license identifier and drop the previous license text. Signed-off-by: Marco Felsch Signed-off-by: Mark Brown

Merge tag 'spi-cs-word' into spi-4.20

2018-09-17T21:17:30+00:00

spi: Provide SPI_CS_WORD This provides a SPI operation mode which changes chip select after every word, used by some devices such as ADCs and DACs.

spi: add new SPI_CS_WORD flag

2018-09-17T21:08:35+00:00

This adds a new SPI mode flag, SPI_CS_WORD, that is used to indicate that a SPI device requires the chip select to be toggled after each word that is transferred. Signed-off-by: David Lechner Signed-off-by: Mark Brown

spi: Introduce one new field to set word delay

2018-08-29T10:48:46+00:00

For some SPI controllers, after each word size (specified by bits_per_word) transimission, the hardware need some delay to make sure the slave has enough time to receive the whole data. So introducing one new 'word_delay' field of struct spi_tansfer for slave devices to set this inter word delay time. Signed-off-by: Baolin Wang Signed-off-by: Mark Brown