Battery: add support battery-cutoff SMBus block write function

Implements battery-cutoff SMBus write block function

BUG=b:122944526
BRANCH=None
TEST=Verify battery cuff on fleex via SMBus block write.

Change-Id: Ib52146cd3042c4a6d2dbafadd430591936230891
Signed-off-by: matt_wang <matt_wang@compal.corp-partner.google.com>
Reviewed-on: https://chromium-review.googlesource.com/1470462
Commit-Ready: Justin TerAvest <teravest@chromium.org>
Tested-by: Justin TerAvest <teravest@chromium.org>
Tested-by: Elmo Lan <elmo_lan@compal.corp-partner.google.com>
Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org>
Reviewed-by: Jett Rink <jettrink@chromium.org>
Reviewed-by: Justin TerAvest <teravest@chromium.org>
Reviewed-by: Elmo Lan <elmo_lan@compal.corp-partner.google.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/include/battery_smart.h b/include/battery_smart.h
index 1cbcf295f1..e4931dad71 100644
--- a/include/battery_smart.h
+++ b/include/battery_smart.h
@@ -147,6 +147,16 @@ int sb_read_string(int offset, uint8_t *data, int len);
 /* Write to battery */
 int sb_write(int cmd, int param);
 
+/**
+ * Write block to do battery cutoff
+ *
+ * @param reg		Battery cutoff register
+ * @param val		Battery cutoff data value
+ * @param len		Param val data length
+ * @return          non-zero if error
+ */
+int sb_write_block(int reg, const uint8_t *val, int len);
+
 /* Read manufactures access data from the battery */
 int sb_read_mfgacc(int cmd, int block, uint8_t *data, int len);