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3 commits

Author SHA1 Message Date
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