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5b96f17290
For some reason I have to slowdown clock to touchscreen device. In atmel_spi_setup() there is comment that max_speed_hz == 0 means as slow as possible and divider is set to maximum value. But in atmel_spi_transfer() function is check against not zero max_speed_hz with EINVAL returned. Probably driver should setup divider for each transfer based on transfer->speed_hz value, but I think that would be not necessary overhead as all used devices have constant clock. Below patch works fine for me. Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl> Signed-off-by: Haavard Skinnemoen <haavard.skinnemoen@atmel.com> Cc: David Brownell <david-b@pacbell.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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.. | ||
at25.c | ||
atmel_spi.c | ||
atmel_spi.h | ||
au1550_spi.c | ||
Kconfig | ||
Makefile | ||
mpc52xx_psc_spi.c | ||
omap2_mcspi.c | ||
omap_uwire.c | ||
orion_spi.c | ||
pxa2xx_spi.c | ||
spi_bfin5xx.c | ||
spi_bitbang.c | ||
spi_butterfly.c | ||
spi_gpio.c | ||
spi_imx.c | ||
spi_lm70llp.c | ||
spi_mpc83xx.c | ||
spi_s3c24xx_gpio.c | ||
spi_s3c24xx.c | ||
spi_sh_sci.c | ||
spi_txx9.c | ||
spi.c | ||
spidev.c | ||
tle62x0.c | ||
xilinx_spi.c |