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authorSimon Glass <sjg@chromium.org>2015-01-26 20:29:37 -0700
committerSimon Glass <sjg@chromium.org>2015-01-29 17:10:01 -0700
commit7132b9fd68a1c76bf557d56dd62756a6607cf761 (patch)
tree01e328c5353ed266cf7b6e22efb7540116f13d64 /drivers
parent189d80166b31db55b99190be3164c8d3348b57fc (diff)
downloadblackbird-obmc-uboot-7132b9fd68a1c76bf557d56dd62756a6607cf761.tar.gz
blackbird-obmc-uboot-7132b9fd68a1c76bf557d56dd62756a6607cf761.zip
dm: i2c: dts: Support an offset-len device tree property
Since U-Boot can support different offset lengths (0-4 bytes), add a device tree property to specify this. This avoids hard-coding it in the driver. Signed-off-by: Simon Glass <sjg@chromium.org>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/i2c/i2c-uclass.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/i2c/i2c-uclass.c b/drivers/i2c/i2c-uclass.c
index 393cd6f583..eafa457845 100644
--- a/drivers/i2c/i2c-uclass.c
+++ b/drivers/i2c/i2c-uclass.c
@@ -420,7 +420,8 @@ int i2c_deblock(struct udevice *bus)
int i2c_chip_ofdata_to_platdata(const void *blob, int node,
struct dm_i2c_chip *chip)
{
- chip->offset_len = 1; /* default */
+ chip->offset_len = fdtdec_get_int(gd->fdt_blob, node,
+ "u-boot,i2c-offset-len", 1);
chip->flags = 0;
chip->chip_addr = fdtdec_get_int(gd->fdt_blob, node, "reg", -1);
if (chip->chip_addr == -1) {
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