16 Mar
2020
16 Mar
'20
11:50 a.m.
On Sun, Mar 15, 2020 at 10:32:39PM -0400, Sasha Levin wrote:
From: Vignesh Raghavendra vigneshr@ti.com
[ Upstream commit e4e8276a4f652be2c7bb783a0155d4adb85f5d7d ]
On AM654, McSPI can only support 4K - 1 bytes per transfer when DMA is enabled. Therefore populate master->max_transfer_size callback to inform client drivers of this restriction when DMA channels are available.
As ever this only provides information to other drivers which may be buggy.