Messages in this thread | | | Date | Fri, 22 Sep 2017 10:06:05 -0700 | From | Dmitry Torokhov <> | Subject | Re: [PATCH] Input: elan_i2c - Extend Flash-Write delay for Elan touch pad |
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On Fri, Sep 22, 2017 at 01:50:36PM +0800, KT Liao wrote: > Original 20ms delay is a margin timing after a block writing > in FW update flow. > > Sometimes it will cause fail during FW-updating if I2C timing delay. > We offten see this issue in rockchip's I2C host. > > Extend the delay timing is the safest way to improve it. > > Signed-off-by: KT Liao <kt.liao@emc.com.tw>
Applied, thank you.
> --- > drivers/input/mouse/elan_i2c_i2c.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/drivers/input/mouse/elan_i2c_i2c.c b/drivers/input/mouse/elan_i2c_i2c.c > index 80172f2..4db376c 100644 > --- a/drivers/input/mouse/elan_i2c_i2c.c > +++ b/drivers/input/mouse/elan_i2c_i2c.c > @@ -587,7 +587,7 @@ static int elan_i2c_write_fw_block(struct i2c_client *client, > } > > /* Wait for F/W to update one page ROM data. */ > - msleep(20); > + msleep(35); > > error = elan_i2c_read_cmd(client, ETP_I2C_IAP_CTRL_CMD, val); > if (error) { > -- > 2.7.4 >
-- Dmitry
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