On 19/01/2021 10:39, Wolfram Sang wrote:
> The version here is identical to the one in the I2C core, so use the
> latter version directly.
>
> Signed-off-by: Wolfram Sang <wsa+rene...@sang-engineering.com>
Reviewed-by: Hans Verkuil <hverkuil-ci...@xs4all.nl>
Looks good to me!
Hans
> ---
>
> Changes since RFC:
> * skip define, use i2c_smbus_write_i2c_block_data directly
>
> drivers/media/i2c/adv7842.c | 24 +++++-------------------
> 1 file changed, 5 insertions(+), 19 deletions(-)
>
> diff --git a/drivers/media/i2c/adv7842.c b/drivers/media/i2c/adv7842.c
> index 0855f648416d..e0629d5ef17b 100644
> --- a/drivers/media/i2c/adv7842.c
> +++ b/drivers/media/i2c/adv7842.c
> @@ -343,20 +343,6 @@ static void adv_smbus_write_byte_no_check(struct
> i2c_client *client,
> I2C_SMBUS_BYTE_DATA, &data);
> }
>
> -static s32 adv_smbus_write_i2c_block_data(struct i2c_client *client,
> - u8 command, unsigned length, const u8 *values)
> -{
> - union i2c_smbus_data data;
> -
> - if (length > I2C_SMBUS_BLOCK_MAX)
> - length = I2C_SMBUS_BLOCK_MAX;
> - data.block[0] = length;
> - memcpy(data.block + 1, values, length);
> - return i2c_smbus_xfer(client->adapter, client->addr, client->flags,
> - I2C_SMBUS_WRITE, command,
> - I2C_SMBUS_I2C_BLOCK_DATA, &data);
> -}
> -
> /* ----------------------------------------------------------------------- */
>
> static inline int io_read(struct v4l2_subdev *sd, u8 reg)
> @@ -741,7 +727,7 @@ static int edid_write_vga_segment(struct v4l2_subdev *sd)
> rep_write_and_or(sd, 0x77, 0xef, 0x10);
>
> for (i = 0; !err && i < 256; i += I2C_SMBUS_BLOCK_MAX)
> - err = adv_smbus_write_i2c_block_data(state->i2c_edid, i,
> + err = i2c_smbus_write_i2c_block_data(state->i2c_edid, i,
> I2C_SMBUS_BLOCK_MAX, val + i);
> if (err)
> return err;
> @@ -807,7 +793,7 @@ static int edid_write_hdmi_segment(struct v4l2_subdev
> *sd, u8 port)
> rep_write_and_or(sd, 0x77, 0xef, 0x00);
>
> for (i = 0; !err && i < 256; i += I2C_SMBUS_BLOCK_MAX)
> - err = adv_smbus_write_i2c_block_data(state->i2c_edid, i,
> + err = i2c_smbus_write_i2c_block_data(state->i2c_edid, i,
> I2C_SMBUS_BLOCK_MAX, edid
> + i);
> if (err)
> return err;
> @@ -1079,7 +1065,7 @@ static void configure_custom_video_timings(struct
> v4l2_subdev *sd,
> /* Should only be set in auto-graphics mode [REF_02, p. 91-92]
> */
> /* setup PLL_DIV_MAN_EN and PLL_DIV_RATIO */
> /* IO-map reg. 0x16 and 0x17 should be written in sequence */
> - if (adv_smbus_write_i2c_block_data(client, 0x16, 2, pll)) {
> + if (i2c_smbus_write_i2c_block_data(client, 0x16, 2, pll)) {
> v4l2_err(sd, "writing to reg 0x16 and 0x17 failed\n");
> break;
> }
> @@ -1135,7 +1121,7 @@ static void adv7842_set_offset(struct v4l2_subdev *sd,
> bool auto_offset, u16 off
> offset_buf[3] = offset_c & 0x0ff;
>
> /* Registers must be written in this order with no i2c access in
> between */
> - if (adv_smbus_write_i2c_block_data(state->i2c_cp, 0x77, 4, offset_buf))
> + if (i2c_smbus_write_i2c_block_data(state->i2c_cp, 0x77, 4, offset_buf))
> v4l2_err(sd, "%s: i2c error writing to CP reg 0x77, 0x78, 0x79,
> 0x7a\n", __func__);
> }
>
> @@ -1164,7 +1150,7 @@ static void adv7842_set_gain(struct v4l2_subdev *sd,
> bool auto_gain, u16 gain_a,
> gain_buf[3] = ((gain_c & 0x0ff));
>
> /* Registers must be written in this order with no i2c access in
> between */
> - if (adv_smbus_write_i2c_block_data(state->i2c_cp, 0x73, 4, gain_buf))
> + if (i2c_smbus_write_i2c_block_data(state->i2c_cp, 0x73, 4, gain_buf))
> v4l2_err(sd, "%s: i2c error writing to CP reg 0x73, 0x74, 0x75,
> 0x76\n", __func__);
> }
>
>
