On Fri, Sep 23, 2016 at 04:01:17PM +0800, Johnny Chuang wrote:
> This CL takes the responsibility for getting product/hardware id
> on recovery mode.
> It will fix firmware update script could not find correspond firmware
> file name on recovery mode.
> BTW, firmware must need to support reading product/hardware id
> on boot code.
>
> Signed-off-by: Johnny Chuang <johnny.chuang@xxxxxxxxxx>
This appears to be exactly the same as to what I already have in my
"next" branch...
> ---
> drivers/input/touchscreen/elants_i2c.c | 31 ++++++++++++++++++++-----------
> 1 file changed, 20 insertions(+), 11 deletions(-)
>
> diff --git a/drivers/input/touchscreen/elants_i2c.c b/drivers/input/touchscreen/elants_i2c.c
> index ac09855..02aec28 100644
> --- a/drivers/input/touchscreen/elants_i2c.c
> +++ b/drivers/input/touchscreen/elants_i2c.c
> @@ -298,7 +298,7 @@ static u16 elants_i2c_parse_version(u8 *buf)
> return get_unaligned_be32(buf) >> 4;
> }
>
> -static int elants_i2c_query_fw_id(struct elants_data *ts)
> +static int elants_i2c_query_hw_version(struct elants_data *ts)
> {
> struct i2c_client *client = ts->client;
> int error, retry_cnt;
> @@ -318,8 +318,13 @@ static int elants_i2c_query_fw_id(struct elants_data *ts)
> error, (int)sizeof(resp), resp);
> }
>
> - dev_err(&client->dev,
> - "Failed to read fw id or fw id is invalid\n");
> + if (error) {
> + dev_err(&client->dev,
> + "Failed to read fw id: %d\n", error);
> + return error;
> + }
> +
> + dev_err(&client->dev, "Invalid fw id: %#04x\n", ts->hw_version);
>
> return -EINVAL;
> }
> @@ -508,7 +513,7 @@ static int elants_i2c_fastboot(struct i2c_client *client)
> static int elants_i2c_initialize(struct elants_data *ts)
> {
> struct i2c_client *client = ts->client;
> - int error, retry_cnt;
> + int error, error2, retry_cnt;
> const u8 hello_packet[] = { 0x55, 0x55, 0x55, 0x55 };
> const u8 recov_packet[] = { 0x55, 0x55, 0x80, 0x80 };
> u8 buf[HEADER_SIZE];
> @@ -553,18 +558,22 @@ static int elants_i2c_initialize(struct elants_data *ts)
> }
> }
>
> + /* hw version is available even if device in recovery state */
> + error2 = elants_i2c_query_hw_version(ts);
> if (!error)
> - error = elants_i2c_query_fw_id(ts);
> + error = error2;
> +
> if (!error)
> error = elants_i2c_query_fw_version(ts);
> + if (!error)
> + error = elants_i2c_query_test_version(ts);
> + if (!error)
> + error = elants_i2c_query_bc_version(ts);
> + if (!error)
> + error = elants_i2c_query_ts_info(ts);
>
> - if (error) {
> + if (error)
> ts->iap_mode = ELAN_IAP_RECOVERY;
> - } else {
> - elants_i2c_query_test_version(ts);
> - elants_i2c_query_bc_version(ts);
> - elants_i2c_query_ts_info(ts);
> - }
>
> return 0;
> }
> --
> 1.8.3.2
>
--
Dmitry
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