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video, formike: change tag/val write 

write first the "tag" 8 bit value and then the "val" 8-bit
to the display.

Tested on the rut board.

Signed-off-by: Heiko Schocher <hs@denx.de>
Cc: Anatolij Gustschin <agust@denx.de>
utp
Heiko Schocher 2013-10-22 11:06:24 +02:00 committed by Anatolij Gustschin
parent 45ae2546ef
commit 1c6e9de53b
1 changed files with 4 additions and 3 deletions
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7
drivers/video/formike.c
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@ -27,10 +27,11 @@ static int spi_write_tag_val(struct spi_slave *spi, unsigned char tag,
int ret;
buf[0] = tag;
buf[1] = val;
flags |= SPI_XFER_END;
ret = spi_xfer(spi, 8, buf, NULL, flags);
buf[0] = val;
flags = SPI_XFER_END;
ret = spi_xfer(spi, 8, buf, NULL, flags);
ret = spi_xfer(spi, 16, buf, NULL, flags);
#ifdef KWH043ST20_F01_SPI_DEBUG
printf("spi_write_tag_val: tag=%02X, val=%02X ret: %d\n",
tag, val, ret);