Commit graph

4 commits

Author SHA1 Message Date
Jagan Teki
3ae6030cf9 dm: platform_data: spi: s/pl022_spi.h/spi_pl022.h
Rename platform_data include file as spi_pl022.h from pl022_spi.h,
this is generic notation used for spi platdata include files.

Acked-by: Quentin Schulz <quentin.schulz@bootlin.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2018-11-27 21:06:46 +05:30
Jagan Teki
e6f76d555e spi: pl022: Drop unnecessary include files
This patch can drop unnecessary include files in
pl022_spi driver.

Acked-by: Quentin Schulz <quentin.schulz@bootlin.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2018-11-27 21:06:37 +05:30
Jagan Teki
3deb1f731d spi: pl022: Simplify platdata code
pl022 spi driver support both OF_CONTROL and PLATDATA, this
patch is trying to simplify the code that differentiating
platdata vs of_control.
- Move OF_CONTROL code at one place
- Handle clock setup code directly in pl022_spi_ofdata_to_platdata

Acked-by: Quentin Schulz <quentin.schulz@bootlin.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
2018-11-27 21:06:19 +05:30
Quentin Schulz
8a4791fa08 spi: add support for ARM PL022 SPI controller
This adds support for the ARM PL022 SPI controller for the standard
variant (0x00041022) which has a 16bit wide and 8 locations deep TX/RX
FIFO.

A few parts were borrowed from the Linux kernel driver.

Cc: Armando Visconti <armando.visconti@st.com>
Cc: Vipin Kumar <vipin.kumar@st.com>
Signed-off-by: Quentin Schulz <quentin.schulz@bootlin.com>
2018-09-25 21:49:18 -04:00