Re: [PATCH] staging: fbtft: do not allocate huge txbuf

Hello, On 9 June 2016 at 18:20, Noralf Trønnes wrote: > > Den 09.06.2016 17:08, skrev Michal Suchanek: >> >> txbuflen can be set to arbitrary value by user and it is also set >> automagically to the maximum transfer size of the SPI master controller. > > >

[PATCH] staging: fbtft: do not allocate huge txbuf

: Michal Suchanek --- drivers/staging/fbtft/fbtft-core.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/staging/fbtft/fbtft-core.c b/drivers/staging/fbtft/fbtft-core.c index f3bdc8f..b95cf69 100644 --- a/drivers/staging/fbtft/fbtft-core.c +++ b/drivers/staging/fbtft/fbtft-core.c

[PATCH] fbtft: limit transfer length by spi device limit

Some SPI controllers can transfer only small piece of data at a time. Since SPI core gained a function to get the maximum transfer length use it. Signed-off-by: Michal Suchanek --- Tested on sunxi spi with DMA enabled and disabled. Makes a visible speed difference and display works in either