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    Subject[PATCH v11 05/56] Input: atmel_mxt_ts - output status from T48 Noise Supression
    Date
    From: Nick Dyer <nick.dyer@itdev.co.uk>

    This patch outputs status from T48 Noise Supression

    Signed-off-by: Nick Dyer <nick.dyer@itdev.co.uk>
    Acked-by: Benson Leung <bleung@chromium.org>
    Acked-by: Yufeng Shen <miletus@chromium.org>
    (cherry picked from ndyer/linux/for-upstream commit 2895a6ff150a49f27a02938f8d262be238b296d8)
    Signed-off-by: George G. Davis <george_davis@mentor.com>
    Signed-off-by: Jiada Wang <jiada_wang@mentor.com>
    ---
    drivers/input/touchscreen/atmel_mxt_ts.c | 25 ++++++++++++++++++++++++
    1 file changed, 25 insertions(+)

    diff --git a/drivers/input/touchscreen/atmel_mxt_ts.c b/drivers/input/touchscreen/atmel_mxt_ts.c
    index 7e6a66e3e1e0..a53985a7736f 100644
    --- a/drivers/input/touchscreen/atmel_mxt_ts.c
    +++ b/drivers/input/touchscreen/atmel_mxt_ts.c
    @@ -324,6 +324,7 @@ struct mxt_data {
    u16 T18_address;
    u8 T19_reportid;
    u16 T44_address;
    + u8 T48_reportid;
    u8 T100_reportid_min;
    u8 T100_reportid_max;

    @@ -978,6 +979,24 @@ static void mxt_proc_t100_message(struct mxt_data *data, u8 *message)
    data->update_input = true;
    }

    +static int mxt_proc_t48_messages(struct mxt_data *data, u8 *msg)
    +{
    + struct device *dev = &data->client->dev;
    + u8 status, state;
    +
    + status = msg[1];
    + state = msg[4];
    +
    + dev_dbg(dev, "T48 state %d status %02X %s%s%s%s%s\n", state, status,
    + status & 0x01 ? "FREQCHG " : "",
    + status & 0x02 ? "APXCHG " : "",
    + status & 0x04 ? "ALGOERR " : "",
    + status & 0x10 ? "STATCHG " : "",
    + status & 0x20 ? "NLVLCHG " : "");
    +
    + return 0;
    +}
    +
    static int mxt_proc_message(struct mxt_data *data, u8 *message)
    {
    u8 report_id = message[0];
    @@ -987,6 +1006,8 @@ static int mxt_proc_message(struct mxt_data *data, u8 *message)

    if (report_id == data->T6_reportid) {
    mxt_proc_t6_messages(data, message);
    + } else if (report_id == data->T48_reportid) {
    + mxt_proc_t48_messages(data, message);
    } else if (!data->input_dev) {
    /*
    * Do not report events if input device
    @@ -1666,6 +1687,7 @@ static void mxt_free_object_table(struct mxt_data *data)
    data->T18_address = 0;
    data->T19_reportid = 0;
    data->T44_address = 0;
    + data->T48_reportid = 0;
    data->T100_reportid_min = 0;
    data->T100_reportid_max = 0;
    data->max_reportid = 0;
    @@ -1747,6 +1769,9 @@ static int mxt_parse_object_table(struct mxt_data *data,
    case MXT_SPT_GPIOPWM_T19:
    data->T19_reportid = min_id;
    break;
    + case MXT_PROCG_NOISESUPPRESSION_T48:
    + data->T48_reportid = min_id;
    + break;
    case MXT_TOUCH_MULTITOUCHSCREEN_T100:
    data->multitouch = MXT_TOUCH_MULTITOUCHSCREEN_T100;
    data->T100_reportid_min = min_id;
    --
    2.17.1
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