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author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-02-18 08:09:40 -0800 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-02-18 08:09:40 -0800 |
commit | ba4b60e85d6c5fc2242fd24e131a47fb922e5d89 (patch) | |
tree | 6be918ce3924d0677bc1029f7d1255fef48a8f85 /drivers/media/i2c/s5k5baf.c | |
parent | 5dba4c56dfa660a85dc8e897990948cdec3734bf (diff) | |
parent | 6d0abeca3242a88cab8232e4acd7e2bf088f3bc2 (diff) | |
download | op-kernel-dev-ba4b60e85d6c5fc2242fd24e131a47fb922e5d89.zip op-kernel-dev-ba4b60e85d6c5fc2242fd24e131a47fb922e5d89.tar.gz |
Merge 3.14-rc3 into char-misc-next
We need the fixes here for future mei and other patches.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/media/i2c/s5k5baf.c')
-rw-r--r-- | drivers/media/i2c/s5k5baf.c | 30 |
1 files changed, 19 insertions, 11 deletions
diff --git a/drivers/media/i2c/s5k5baf.c b/drivers/media/i2c/s5k5baf.c index 4b83811..77e10e0 100644 --- a/drivers/media/i2c/s5k5baf.c +++ b/drivers/media/i2c/s5k5baf.c @@ -478,25 +478,33 @@ static void s5k5baf_write_arr_seq(struct s5k5baf *state, u16 addr, u16 count, const u16 *seq) { struct i2c_client *c = v4l2_get_subdevdata(&state->sd); - __be16 buf[count + 1]; - int ret, n; + __be16 buf[65]; s5k5baf_i2c_write(state, REG_CMDWR_ADDR, addr); if (state->error) return; + v4l2_dbg(3, debug, c, "i2c_write_seq(count=%d): %*ph\n", count, + min(2 * count, 64), seq); + buf[0] = __constant_cpu_to_be16(REG_CMD_BUF); - for (n = 1; n <= count; ++n) - buf[n] = cpu_to_be16(*seq++); - n *= 2; - ret = i2c_master_send(c, (char *)buf, n); - v4l2_dbg(3, debug, c, "i2c_write_seq(count=%d): %*ph\n", count, - min(2 * count, 64), seq - count); + while (count > 0) { + int n = min_t(int, count, ARRAY_SIZE(buf) - 1); + int ret, i; - if (ret != n) { - v4l2_err(c, "i2c_write_seq: error during transfer (%d)\n", ret); - state->error = ret; + for (i = 1; i <= n; ++i) + buf[i] = cpu_to_be16(*seq++); + + i *= 2; + ret = i2c_master_send(c, (char *)buf, i); + if (ret != i) { + v4l2_err(c, "i2c_write_seq: error during transfer (%d)\n", ret); + state->error = ret; + break; + } + + count -= n; } } |