diff options
| author | Wei Ni <wni@nvidia.com> | 2011-08-03 15:01:37 +0800 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2011-08-29 10:59:21 -0700 |
| commit | e344e1eb27135cd2650c74c17270ce5361251a91 (patch) | |
| tree | c6486fc0013277e7a6c261d416b7f65122a867fd /board | |
| parent | 37ab60f1078c8f9f412f54933ca1917990dd8b5b (diff) | |
Tegra: pmu: Fix the pmu_read and pmu_write
pmu_read/pmu_write call the i2c_read/i2c_write to read/write.
In the old codes, the parameter "alen" is 0, but according to the
tegra-i2c.c, if the alen==0, the i2c_read/i2c_write will be failed
with i2c_addr_ok(), it means the alen should not be 0.
It should be 1 in here.
BUG=chromium-os:18648
TEST=test on seaboard, the pmu_read/pmu_write works fine.
Change-Id: Ib55811bcc259a9dc74993728a23329abc6f2fe5d
Signed-off-by: Wei Ni <wni@nvidia.com>
Reviewed-on: http://gerrit.chromium.org/gerrit/5206
Reviewed-by: Doug Anderson <dianders@chromium.org>
Tested-by: Doug Anderson <dianders@chromium.org>
Diffstat (limited to 'board')
| -rw-r--r-- | board/nvidia/common/pmu.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/board/nvidia/common/pmu.c b/board/nvidia/common/pmu.c index be288cf3cb..803556165b 100644 --- a/board/nvidia/common/pmu.c +++ b/board/nvidia/common/pmu.c @@ -80,7 +80,7 @@ static int pmu_read(int reg) uchar data; for (i = 0; i < MAX_I2C_RETRY; ++i) { - if (!i2c_read(PMU_I2C_ADDRESS, reg, 0, &data, 1)) + if (!i2c_read(PMU_I2C_ADDRESS, reg, 1, &data, 1)) return (int)data; /* i2c access failed, retry */ @@ -95,7 +95,7 @@ static int pmu_write(int reg, uchar *data, uint len) int i; for (i = 0; i < MAX_I2C_RETRY; ++i) { - if (!i2c_write(PMU_I2C_ADDRESS, reg, 0, data, len)) + if (!i2c_write(PMU_I2C_ADDRESS, reg, 1, data, len)) return 0; /* i2c access failed, retry */ |