[PATCH] Input: elantech - force a module ignore ABS mode

[KT Liao]

One Elan sample which sample version is 0x74 and hw_version is 0x04 has a bug in abs mode, so let it run in default mode
Signed-off-by: KT Liao <kt....@emc.com.tw>
---
drivers/input/mouse/elantech.c | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
index db7d1d6..f1c2d10 100644
--- a/drivers/input/mouse/elantech.c
+++ b/drivers/input/mouse/elantech.c
@@ -1687,6 +1687,13 @@ int elantech_init(struct psmouse *psmouse)
etd->samples[0], etd->samples[1], etd->samples[2]);
}

+ if (etd->samples[1] == 0x74 && etd->hw_version == 0x03) {
+ /*This module has a bug in absolute mode, let it be defualt mode */
+ psmouse_info(psmouse,
+ "This module only active in default mode\n");
+ goto init_fail;
+ }
+
if (elantech_set_absolute_mode(psmouse)) {
psmouse_err(psmouse,
"failed to put touchpad into absolute mode.\n");
--
2.7.4

[Dmitry Torokhov]

On Mon, Dec 12, 2016 at 03:11:03PM +0800, KT Liao wrote:
> One Elan sample which sample version is 0x74 and hw_version is 0x04 has a bug in abs mode, so let it run in default mode
> Signed-off-by: KT Liao <kt....@emc.com.tw>

Applied, thank you.

> ---
> drivers/input/mouse/elantech.c | 7 +++++++
> 1 file changed, 7 insertions(+)
>
> diff --git a/drivers/input/mouse/elantech.c b/drivers/input/mouse/elantech.c
> index db7d1d6..f1c2d10 100644
> --- a/drivers/input/mouse/elantech.c
> +++ b/drivers/input/mouse/elantech.c
> @@ -1687,6 +1687,13 @@ int elantech_init(struct psmouse *psmouse)
> etd->samples[0], etd->samples[1], etd->samples[2]);
> }
>
> + if (etd->samples[1] == 0x74 && etd->hw_version == 0x03) {
> + /*This module has a bug in absolute mode, let it be defualt mode */
> + psmouse_info(psmouse,
> + "This module only active in default mode\n");
> + goto init_fail;
> + }
> +
> if (elantech_set_absolute_mode(psmouse)) {
> psmouse_err(psmouse,
> "failed to put touchpad into absolute mode.\n");
> --
> 2.7.4
>

--
Dmitry