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author | Julia Cartwright <julia@ni.com> | 2018-02-26 11:22:02 -0600 |
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committer | Julia Cartwright <julia@ni.com> | 2018-02-26 11:22:02 -0600 |
commit | 184d107421c695782ae8cc976170e3cf83fbca9a (patch) | |
tree | 20d804c113e6fbc3a298b069b5a777fb81e194f4 /drivers/media/i2c/tc358743.c | |
parent | 90816cc1d4a1d23efe37b74866c6174dd5eab6b5 (diff) | |
parent | 19c04ca5b239e6e2277a5b381d1e79482ab9bbc5 (diff) | |
download | linux-rt-184d107421c695782ae8cc976170e3cf83fbca9a.tar.gz |
Merge tag 'v4.9.84' into v4.9-rt
This is the 4.9.84 stable release
Diffstat (limited to 'drivers/media/i2c/tc358743.c')
-rw-r--r-- | drivers/media/i2c/tc358743.c | 46 |
1 files changed, 25 insertions, 21 deletions
diff --git a/drivers/media/i2c/tc358743.c b/drivers/media/i2c/tc358743.c index 1e3a0dd2238c..26d999c812c9 100644 --- a/drivers/media/i2c/tc358743.c +++ b/drivers/media/i2c/tc358743.c @@ -193,57 +193,61 @@ static void i2c_wr(struct v4l2_subdev *sd, u16 reg, u8 *values, u32 n) } } -static u8 i2c_rd8(struct v4l2_subdev *sd, u16 reg) +static noinline u32 i2c_rdreg(struct v4l2_subdev *sd, u16 reg, u32 n) { - u8 val; + __le32 val = 0; - i2c_rd(sd, reg, &val, 1); + i2c_rd(sd, reg, (u8 __force *)&val, n); - return val; + return le32_to_cpu(val); +} + +static noinline void i2c_wrreg(struct v4l2_subdev *sd, u16 reg, u32 val, u32 n) +{ + __le32 raw = cpu_to_le32(val); + + i2c_wr(sd, reg, (u8 __force *)&raw, n); +} + +static u8 i2c_rd8(struct v4l2_subdev *sd, u16 reg) +{ + return i2c_rdreg(sd, reg, 1); } static void i2c_wr8(struct v4l2_subdev *sd, u16 reg, u8 val) { - i2c_wr(sd, reg, &val, 1); + i2c_wrreg(sd, reg, val, 1); } static void i2c_wr8_and_or(struct v4l2_subdev *sd, u16 reg, u8 mask, u8 val) { - i2c_wr8(sd, reg, (i2c_rd8(sd, reg) & mask) | val); + i2c_wrreg(sd, reg, (i2c_rdreg(sd, reg, 2) & mask) | val, 2); } static u16 i2c_rd16(struct v4l2_subdev *sd, u16 reg) { - u16 val; - - i2c_rd(sd, reg, (u8 *)&val, 2); - - return val; + return i2c_rdreg(sd, reg, 2); } static void i2c_wr16(struct v4l2_subdev *sd, u16 reg, u16 val) { - i2c_wr(sd, reg, (u8 *)&val, 2); + i2c_wrreg(sd, reg, val, 2); } static void i2c_wr16_and_or(struct v4l2_subdev *sd, u16 reg, u16 mask, u16 val) { - i2c_wr16(sd, reg, (i2c_rd16(sd, reg) & mask) | val); + i2c_wrreg(sd, reg, (i2c_rdreg(sd, reg, 2) & mask) | val, 2); } static u32 i2c_rd32(struct v4l2_subdev *sd, u16 reg) { - u32 val; - - i2c_rd(sd, reg, (u8 *)&val, 4); - - return val; + return i2c_rdreg(sd, reg, 4); } static void i2c_wr32(struct v4l2_subdev *sd, u16 reg, u32 val) { - i2c_wr(sd, reg, (u8 *)&val, 4); + i2c_wrreg(sd, reg, val, 4); } /* --------------- STATUS --------------- */ @@ -1236,7 +1240,7 @@ static int tc358743_g_register(struct v4l2_subdev *sd, reg->size = tc358743_get_reg_size(reg->reg); - i2c_rd(sd, reg->reg, (u8 *)®->val, reg->size); + reg->val = i2c_rdreg(sd, reg->reg, reg->size); return 0; } @@ -1262,7 +1266,7 @@ static int tc358743_s_register(struct v4l2_subdev *sd, reg->reg == BCAPS) return 0; - i2c_wr(sd, (u16)reg->reg, (u8 *)®->val, + i2c_wrreg(sd, (u16)reg->reg, reg->val, tc358743_get_reg_size(reg->reg)); return 0; |