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>

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>
Heiko Schocher · Anatolij Gustschin
1 parent 45ae2546ef
Showing 1 changed file with 4 additions and 3 deletions Side-by-side Diff
drivers/video/formike.c
@@ -27,10 +27,11 @@
 	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);
...	...	@@ -27,10 +27,11 @@
27	27	int ret;
28	28
29	29	buf[0] = tag;
30		- buf[1] = val;
31		- flags \|= SPI_XFER_END;
	30	+ ret = spi_xfer(spi, 8, buf, NULL, flags);
	31	+ buf[0] = val;
	32	+ flags = SPI_XFER_END;
	33	+ ret = spi_xfer(spi, 8, buf, NULL, flags);
32	34
33		- ret = spi_xfer(spi, 16, buf, NULL, flags);
34	35	#ifdef KWH043ST20_F01_SPI_DEBUG
35	36	printf("spi_write_tag_val: tag=%02X, val=%02X ret: %d\n",
36	37	tag, val, ret);