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Lack SPI driver for S5P4413 kernel source (linux-3.4.y)

Posted: Tue May 09, 2017 8:07 am
by koyouu
1. Do anyone find S5P4413 spi driver code in Debian kernel source tree ?
I try common SPI test code (spidev_test.c) but read all zero back. ... spi-test.c
It seems there is no proper SPI driver include in linux driver.

2. How to enable second SPI ?
From the S5P4418's spec. there are 3 SPI controllers
How to enable the second one in kernel ?

Best Regards,