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[SRU][Xenial][Yakkety][PATCH 0/1] Input: ALPS - fix V8+ protocol handling (73 03 28)

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[SRU][Xenial][Yakkety][PATCH 0/1] Input: ALPS - fix V8+ protocol handling (73 03 28)

Joseph Salisbury-3
BugLink: http://bugs.launchpad.net/bugs/1662589

== SRU Justification ==
The touchpad on a Toshiba Tecra laptop stopped working in Xenial 4.4.0-31.  
This was caused by commit aeaa881f9b17.  Commit e7348396c6d51b fixes the regression and
landed in mainline as of v4.11-rc4.  The commit was cc'd to stable and has
already landed in Zesty.  Commit e7348396c6d51b is still needed in Xenial and Yakkety.

== Fix ==
commit e7348396c6d51b57c95c6646c390cd078e038e19
Author: Masaki Ota <[hidden email]>
Date:   Fri Mar 17 14:10:57 2017 -0700

    Input: ALPS - fix V8+ protocol handling (73 03 28)


== Test Case ==
A test kernel was built with this patch and tested by the original bug reporter.
 

Masaki Ota (1):
  Input: ALPS - fix V8+ protocol handling (73 03 28)

 drivers/input/mouse/alps.c | 66 +++++++++++++++++++++++++++++++++++-----------
 drivers/input/mouse/alps.h | 21 ++++++++++++++-
 2 files changed, 70 insertions(+), 17 deletions(-)

--
2.7.4


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[SRU][Xenial][Yakkety][PATCH 1/1] Input: ALPS - fix V8+ protocol handling (73 03 28)

Joseph Salisbury-3
From: Masaki Ota <[hidden email]>

BugLink: http://bugs.launchpad.net/bugs/1662589

Devices identified as E7="73 03 28" use slightly modified version of V8
protocol, with lower count per electrode, different offsets, and different
feature bits in OTP data.

Fixes: aeaa881f9b17 ("Input: ALPS - set DualPoint flag for 74 03 28 devices")
Signed-off-by: Masaki Ota <[hidden email]>
Acked-by: Pali Rohar <[hidden email]>
Tested-by: Paul Donohue <[hidden email]>
Tested-by: Nick Fletcher <[hidden email]>
Cc: [hidden email]
Signed-off-by: Dmitry Torokhov <[hidden email]>
(backported from commit e7348396c6d51b57c95c6646c390cd078e038e19)
Signed-off-by: Joseph Salisbury <[hidden email]>
---
 drivers/input/mouse/alps.c | 66 +++++++++++++++++++++++++++++++++++-----------
 drivers/input/mouse/alps.h | 21 ++++++++++++++-
 2 files changed, 70 insertions(+), 17 deletions(-)

diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
index d10b14f..0fd78c3 100644
--- a/drivers/input/mouse/alps.c
+++ b/drivers/input/mouse/alps.c
@@ -2458,14 +2458,34 @@ static int alps_update_device_area_ss4_v2(unsigned char otp[][4],
  int num_y_electrode;
  int x_pitch, y_pitch, x_phys, y_phys;
 
- num_x_electrode = SS4_NUMSENSOR_XOFFSET + (otp[1][0] & 0x0F);
- num_y_electrode = SS4_NUMSENSOR_YOFFSET + ((otp[1][0] >> 4) & 0x0F);
+ if (IS_SS4PLUS_DEV(priv->dev_id)) {
+ num_x_electrode =
+ SS4PLUS_NUMSENSOR_XOFFSET + (otp[0][2] & 0x0F);
+ num_y_electrode =
+ SS4PLUS_NUMSENSOR_YOFFSET + ((otp[0][2] >> 4) & 0x0F);
 
- priv->x_max = (num_x_electrode - 1) * SS4_COUNT_PER_ELECTRODE;
- priv->y_max = (num_y_electrode - 1) * SS4_COUNT_PER_ELECTRODE;
+ priv->x_max =
+ (num_x_electrode - 1) * SS4PLUS_COUNT_PER_ELECTRODE;
+ priv->y_max =
+ (num_y_electrode - 1) * SS4PLUS_COUNT_PER_ELECTRODE;
 
- x_pitch = ((otp[1][2] >> 2) & 0x07) + SS4_MIN_PITCH_MM;
- y_pitch = ((otp[1][2] >> 5) & 0x07) + SS4_MIN_PITCH_MM;
+ x_pitch = (otp[0][1] & 0x0F) + SS4PLUS_MIN_PITCH_MM;
+ y_pitch = ((otp[0][1] >> 4) & 0x0F) + SS4PLUS_MIN_PITCH_MM;
+
+ } else {
+ num_x_electrode =
+ SS4_NUMSENSOR_XOFFSET + (otp[1][0] & 0x0F);
+ num_y_electrode =
+ SS4_NUMSENSOR_YOFFSET + ((otp[1][0] >> 4) & 0x0F);
+
+ priv->x_max =
+ (num_x_electrode - 1) * SS4_COUNT_PER_ELECTRODE;
+ priv->y_max =
+ (num_y_electrode - 1) * SS4_COUNT_PER_ELECTRODE;
+
+ x_pitch = ((otp[1][2] >> 2) & 0x07) + SS4_MIN_PITCH_MM;
+ y_pitch = ((otp[1][2] >> 5) & 0x07) + SS4_MIN_PITCH_MM;
+ }
 
  x_phys = x_pitch * (num_x_electrode - 1); /* In 0.1 mm units */
  y_phys = y_pitch * (num_y_electrode - 1); /* In 0.1 mm units */
@@ -2481,7 +2501,10 @@ static int alps_update_btn_info_ss4_v2(unsigned char otp[][4],
 {
  unsigned char is_btnless;
 
- is_btnless = (otp[1][1] >> 3) & 0x01;
+ if (IS_SS4PLUS_DEV(priv->dev_id))
+ is_btnless = (otp[1][0] >> 1) & 0x01;
+ else
+ is_btnless = (otp[1][1] >> 3) & 0x01;
 
  if (is_btnless)
  priv->flags |= ALPS_BUTTONPAD;
@@ -2489,6 +2512,21 @@ static int alps_update_btn_info_ss4_v2(unsigned char otp[][4],
  return 0;
 }
 
+static int alps_update_dual_info_ss4_v2(unsigned char otp[][4],
+       struct alps_data *priv)
+{
+ bool is_dual = false;
+
+ if (IS_SS4PLUS_DEV(priv->dev_id))
+ is_dual = (otp[0][0] >> 4) & 0x01;
+
+ if (is_dual)
+ priv->flags |= ALPS_DUALPOINT |
+ ALPS_DUALPOINT_WITH_PRESSURE;
+
+ return 0;
+}
+
 static int alps_set_defaults_ss4_v2(struct psmouse *psmouse,
     struct alps_data *priv)
 {
@@ -2504,6 +2542,8 @@ static int alps_set_defaults_ss4_v2(struct psmouse *psmouse,
 
  alps_update_btn_info_ss4_v2(otp, priv);
 
+ alps_update_dual_info_ss4_v2(otp, priv);
+
  return 0;
 }
 
@@ -2741,10 +2781,6 @@ static int alps_set_protocol(struct psmouse *psmouse,
  if (alps_set_defaults_ss4_v2(psmouse, priv))
  return -EIO;
 
- if (priv->fw_ver[1] == 0x1)
- priv->flags |= ALPS_DUALPOINT |
- ALPS_DUALPOINT_WITH_PRESSURE;
-
  break;
  }
 
@@ -2815,10 +2851,7 @@ static int alps_identify(struct psmouse *psmouse, struct alps_data *priv)
    ec[2] >= 0x90 && ec[2] <= 0x9d) {
  protocol = &alps_v3_protocol_data;
  } else if (e7[0] == 0x73 && e7[1] == 0x03 &&
-   e7[2] == 0x14 && ec[1] == 0x02) {
- protocol = &alps_v8_protocol_data;
- } else if (e7[0] == 0x73 && e7[1] == 0x03 &&
-   e7[2] == 0x28 && ec[1] == 0x01) {
+   (e7[2] == 0x14 || e7[2] == 0x28)) {
  protocol = &alps_v8_protocol_data;
  } else {
  psmouse_dbg(psmouse,
@@ -2828,7 +2861,8 @@ static int alps_identify(struct psmouse *psmouse, struct alps_data *priv)
  }
 
  if (priv) {
- /* Save the Firmware version */
+ /* Save Device ID and Firmware version */
+ memcpy(priv->dev_id, e7, 3);
  memcpy(priv->fw_ver, ec, 3);
  error = alps_set_protocol(psmouse, priv, protocol);
  if (error)
diff --git a/drivers/input/mouse/alps.h b/drivers/input/mouse/alps.h
index b9417e2..31c06df 100644
--- a/drivers/input/mouse/alps.h
+++ b/drivers/input/mouse/alps.h
@@ -54,7 +54,25 @@ enum SS4_PACKET_ID {
 
 #define SS4_MASK_NORMAL_BUTTONS 0x07
 
-#define SS4_1F_X_V2(_b) ((_b[0] & 0x0007) | \
+#define SS4PLUS_COUNT_PER_ELECTRODE 128
+#define SS4PLUS_NUMSENSOR_XOFFSET 16
+#define SS4PLUS_NUMSENSOR_YOFFSET 5
+#define SS4PLUS_MIN_PITCH_MM 37
+
+#define IS_SS4PLUS_DEV(_b) (((_b[0]) == 0x73) && \
+ ((_b[1]) == 0x03) && \
+ ((_b[2]) == 0x28) \
+ )
+
+#define SS4_IS_IDLE_V2(_b) (((_b[0]) == 0x18) && \
+ ((_b[1]) == 0x10) && \
+ ((_b[2]) == 0x00) && \
+ ((_b[3] & 0x88) == 0x08) && \
+ ((_b[4]) == 0x10) && \
+ ((_b[5]) == 0x00) \
+ )
+
+#define SS4_1F_X_V2(_b) (((_b[0]) & 0x0007) | \
  ((_b[1] << 3) & 0x0078) | \
  ((_b[1] << 2) & 0x0380) | \
  ((_b[2] << 5) & 0x1C00) \
@@ -263,6 +281,7 @@ struct alps_data {
  int addr_command;
  u16 proto_version;
  u8 byte0, mask0;
+ u8 dev_id[3];
  u8 fw_ver[3];
  int flags;
  int x_max;
--
2.7.4


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ACK: [SRU][Xenial][Yakkety][PATCH 1/1] Input: ALPS - fix V8+ protocol handling (73 03 28)

Tim Gardner-2
Good test results, upstream stable commit


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ACK: [SRU][Xenial][Yakkety][PATCH 1/1] Input: ALPS - fix V8+ protocol handling (73 03 28)

Colin Ian King-2
In reply to this post by Joseph Salisbury-3
On 06/04/17 16:25, Joseph Salisbury wrote:

> From: Masaki Ota <[hidden email]>
>
> BugLink: http://bugs.launchpad.net/bugs/1662589
>
> Devices identified as E7="73 03 28" use slightly modified version of V8
> protocol, with lower count per electrode, different offsets, and different
> feature bits in OTP data.
>
> Fixes: aeaa881f9b17 ("Input: ALPS - set DualPoint flag for 74 03 28 devices")
> Signed-off-by: Masaki Ota <[hidden email]>
> Acked-by: Pali Rohar <[hidden email]>
> Tested-by: Paul Donohue <[hidden email]>
> Tested-by: Nick Fletcher <[hidden email]>
> Cc: [hidden email]
> Signed-off-by: Dmitry Torokhov <[hidden email]>
> (backported from commit e7348396c6d51b57c95c6646c390cd078e038e19)
> Signed-off-by: Joseph Salisbury <[hidden email]>
> ---
>  drivers/input/mouse/alps.c | 66 +++++++++++++++++++++++++++++++++++-----------
>  drivers/input/mouse/alps.h | 21 ++++++++++++++-
>  2 files changed, 70 insertions(+), 17 deletions(-)
>
> diff --git a/drivers/input/mouse/alps.c b/drivers/input/mouse/alps.c
> index d10b14f..0fd78c3 100644
> --- a/drivers/input/mouse/alps.c
> +++ b/drivers/input/mouse/alps.c
> @@ -2458,14 +2458,34 @@ static int alps_update_device_area_ss4_v2(unsigned char otp[][4],
>   int num_y_electrode;
>   int x_pitch, y_pitch, x_phys, y_phys;
>  
> - num_x_electrode = SS4_NUMSENSOR_XOFFSET + (otp[1][0] & 0x0F);
> - num_y_electrode = SS4_NUMSENSOR_YOFFSET + ((otp[1][0] >> 4) & 0x0F);
> + if (IS_SS4PLUS_DEV(priv->dev_id)) {
> + num_x_electrode =
> + SS4PLUS_NUMSENSOR_XOFFSET + (otp[0][2] & 0x0F);
> + num_y_electrode =
> + SS4PLUS_NUMSENSOR_YOFFSET + ((otp[0][2] >> 4) & 0x0F);
>  
> - priv->x_max = (num_x_electrode - 1) * SS4_COUNT_PER_ELECTRODE;
> - priv->y_max = (num_y_electrode - 1) * SS4_COUNT_PER_ELECTRODE;
> + priv->x_max =
> + (num_x_electrode - 1) * SS4PLUS_COUNT_PER_ELECTRODE;
> + priv->y_max =
> + (num_y_electrode - 1) * SS4PLUS_COUNT_PER_ELECTRODE;
>  
> - x_pitch = ((otp[1][2] >> 2) & 0x07) + SS4_MIN_PITCH_MM;
> - y_pitch = ((otp[1][2] >> 5) & 0x07) + SS4_MIN_PITCH_MM;
> + x_pitch = (otp[0][1] & 0x0F) + SS4PLUS_MIN_PITCH_MM;
> + y_pitch = ((otp[0][1] >> 4) & 0x0F) + SS4PLUS_MIN_PITCH_MM;
> +
> + } else {
> + num_x_electrode =
> + SS4_NUMSENSOR_XOFFSET + (otp[1][0] & 0x0F);
> + num_y_electrode =
> + SS4_NUMSENSOR_YOFFSET + ((otp[1][0] >> 4) & 0x0F);
> +
> + priv->x_max =
> + (num_x_electrode - 1) * SS4_COUNT_PER_ELECTRODE;
> + priv->y_max =
> + (num_y_electrode - 1) * SS4_COUNT_PER_ELECTRODE;
> +
> + x_pitch = ((otp[1][2] >> 2) & 0x07) + SS4_MIN_PITCH_MM;
> + y_pitch = ((otp[1][2] >> 5) & 0x07) + SS4_MIN_PITCH_MM;
> + }
>  
>   x_phys = x_pitch * (num_x_electrode - 1); /* In 0.1 mm units */
>   y_phys = y_pitch * (num_y_electrode - 1); /* In 0.1 mm units */
> @@ -2481,7 +2501,10 @@ static int alps_update_btn_info_ss4_v2(unsigned char otp[][4],
>  {
>   unsigned char is_btnless;
>  
> - is_btnless = (otp[1][1] >> 3) & 0x01;
> + if (IS_SS4PLUS_DEV(priv->dev_id))
> + is_btnless = (otp[1][0] >> 1) & 0x01;
> + else
> + is_btnless = (otp[1][1] >> 3) & 0x01;
>  
>   if (is_btnless)
>   priv->flags |= ALPS_BUTTONPAD;
> @@ -2489,6 +2512,21 @@ static int alps_update_btn_info_ss4_v2(unsigned char otp[][4],
>   return 0;
>  }
>  
> +static int alps_update_dual_info_ss4_v2(unsigned char otp[][4],
> +       struct alps_data *priv)
> +{
> + bool is_dual = false;
> +
> + if (IS_SS4PLUS_DEV(priv->dev_id))
> + is_dual = (otp[0][0] >> 4) & 0x01;
> +
> + if (is_dual)
> + priv->flags |= ALPS_DUALPOINT |
> + ALPS_DUALPOINT_WITH_PRESSURE;
> +
> + return 0;
> +}
> +
>  static int alps_set_defaults_ss4_v2(struct psmouse *psmouse,
>      struct alps_data *priv)
>  {
> @@ -2504,6 +2542,8 @@ static int alps_set_defaults_ss4_v2(struct psmouse *psmouse,
>  
>   alps_update_btn_info_ss4_v2(otp, priv);
>  
> + alps_update_dual_info_ss4_v2(otp, priv);
> +
>   return 0;
>  }
>  
> @@ -2741,10 +2781,6 @@ static int alps_set_protocol(struct psmouse *psmouse,
>   if (alps_set_defaults_ss4_v2(psmouse, priv))
>   return -EIO;
>  
> - if (priv->fw_ver[1] == 0x1)
> - priv->flags |= ALPS_DUALPOINT |
> - ALPS_DUALPOINT_WITH_PRESSURE;
> -
>   break;
>   }
>  
> @@ -2815,10 +2851,7 @@ static int alps_identify(struct psmouse *psmouse, struct alps_data *priv)
>     ec[2] >= 0x90 && ec[2] <= 0x9d) {
>   protocol = &alps_v3_protocol_data;
>   } else if (e7[0] == 0x73 && e7[1] == 0x03 &&
> -   e7[2] == 0x14 && ec[1] == 0x02) {
> - protocol = &alps_v8_protocol_data;
> - } else if (e7[0] == 0x73 && e7[1] == 0x03 &&
> -   e7[2] == 0x28 && ec[1] == 0x01) {
> +   (e7[2] == 0x14 || e7[2] == 0x28)) {
>   protocol = &alps_v8_protocol_data;
>   } else {
>   psmouse_dbg(psmouse,
> @@ -2828,7 +2861,8 @@ static int alps_identify(struct psmouse *psmouse, struct alps_data *priv)
>   }
>  
>   if (priv) {
> - /* Save the Firmware version */
> + /* Save Device ID and Firmware version */
> + memcpy(priv->dev_id, e7, 3);
>   memcpy(priv->fw_ver, ec, 3);
>   error = alps_set_protocol(psmouse, priv, protocol);
>   if (error)
> diff --git a/drivers/input/mouse/alps.h b/drivers/input/mouse/alps.h
> index b9417e2..31c06df 100644
> --- a/drivers/input/mouse/alps.h
> +++ b/drivers/input/mouse/alps.h
> @@ -54,7 +54,25 @@ enum SS4_PACKET_ID {
>  
>  #define SS4_MASK_NORMAL_BUTTONS 0x07
>  
> -#define SS4_1F_X_V2(_b) ((_b[0] & 0x0007) | \
> +#define SS4PLUS_COUNT_PER_ELECTRODE 128
> +#define SS4PLUS_NUMSENSOR_XOFFSET 16
> +#define SS4PLUS_NUMSENSOR_YOFFSET 5
> +#define SS4PLUS_MIN_PITCH_MM 37
> +
> +#define IS_SS4PLUS_DEV(_b) (((_b[0]) == 0x73) && \
> + ((_b[1]) == 0x03) && \
> + ((_b[2]) == 0x28) \
> + )
> +
> +#define SS4_IS_IDLE_V2(_b) (((_b[0]) == 0x18) && \
> + ((_b[1]) == 0x10) && \
> + ((_b[2]) == 0x00) && \
> + ((_b[3] & 0x88) == 0x08) && \
> + ((_b[4]) == 0x10) && \
> + ((_b[5]) == 0x00) \
> + )
> +
> +#define SS4_1F_X_V2(_b) (((_b[0]) & 0x0007) | \
>   ((_b[1] << 3) & 0x0078) | \
>   ((_b[1] << 2) & 0x0380) | \
>   ((_b[2] << 5) & 0x1C00) \
> @@ -263,6 +281,7 @@ struct alps_data {
>   int addr_command;
>   u16 proto_version;
>   u8 byte0, mask0;
> + u8 dev_id[3];
>   u8 fw_ver[3];
>   int flags;
>   int x_max;
>

Upstream fix, has known test results and limit device scope, so..

Acked-by: Colin Ian King <[hidden email]>

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Re: [SRU][Xenial][Yakkety][PATCH 0/1] Input: ALPS - fix V8+ protocol handling (73 03 28)

Liming Wang
In reply to this post by Joseph Salisbury-3
On Thu, Apr 06, 2017 at 04:25:08PM +0100, Joseph Salisbury wrote:
>BugLink: http://bugs.launchpad.net/bugs/1662589
Hi,

I found there are two patches for the review req in lkml:
https://lkml.org/lkml/2017/3/13/1184
https://lkml.org/lkml/2017/3/13/1185

We only backport the first one. But according to the second patch, I
wonder without it, V8 Button pad Stick Right and Middle button don't
work.

I have one bug that needs both of the patches:
https://bugs.launchpad.net/sutton/+bug/1655889

I think we need to backport the second one.

Thanks,
Liming Wang

>
>== SRU Justification ==
>The touchpad on a Toshiba Tecra laptop stopped working in Xenial 4.4.0-31.  
>This was caused by commit aeaa881f9b17.  Commit e7348396c6d51b fixes the regression and
>landed in mainline as of v4.11-rc4.  The commit was cc'd to stable and has
>already landed in Zesty.  Commit e7348396c6d51b is still needed in Xenial and Yakkety.
>
>== Fix ==
>commit e7348396c6d51b57c95c6646c390cd078e038e19
>Author: Masaki Ota <[hidden email]>
>Date:   Fri Mar 17 14:10:57 2017 -0700
>
>    Input: ALPS - fix V8+ protocol handling (73 03 28)
>
>
>== Test Case ==
>A test kernel was built with this patch and tested by the original bug reporter.
>
>
>Masaki Ota (1):
>  Input: ALPS - fix V8+ protocol handling (73 03 28)
>
> drivers/input/mouse/alps.c | 66 +++++++++++++++++++++++++++++++++++-----------
> drivers/input/mouse/alps.h | 21 ++++++++++++++-
> 2 files changed, 70 insertions(+), 17 deletions(-)
>
>--
>2.7.4
>
>
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Re: [SRU][Xenial][Yakkety][PATCH 0/1] Input: ALPS - fix V8+ protocol handling (73 03 28)

Stefan Bader-2
On 06.04.2017 18:06, Liming Wang wrote:

> On Thu, Apr 06, 2017 at 04:25:08PM +0100, Joseph Salisbury wrote:
>> BugLink: http://bugs.launchpad.net/bugs/1662589
> Hi,
>
> I found there are two patches for the review req in lkml:
> https://lkml.org/lkml/2017/3/13/1184
> https://lkml.org/lkml/2017/3/13/1185
>
> We only backport the first one. But according to the second patch, I
> wonder without it, V8 Button pad Stick Right and Middle button don't
> work.
>
> I have one bug that needs both of the patches:
> https://bugs.launchpad.net/sutton/+bug/1655889
>
> I think we need to backport the second one.
Liming,

could you re-submit the whole set in that case, please?

-Stefan

>
> Thanks,
> Liming Wang
>>
>> == SRU Justification ==
>> The touchpad on a Toshiba Tecra laptop stopped working in Xenial 4.4.0-31.  
>> This was caused by commit aeaa881f9b17.  Commit e7348396c6d51b fixes the regression and
>> landed in mainline as of v4.11-rc4.  The commit was cc'd to stable and has
>> already landed in Zesty.  Commit e7348396c6d51b is still needed in Xenial and Yakkety.
>>
>> == Fix ==
>> commit e7348396c6d51b57c95c6646c390cd078e038e19
>> Author: Masaki Ota <[hidden email]>
>> Date:   Fri Mar 17 14:10:57 2017 -0700
>>
>>    Input: ALPS - fix V8+ protocol handling (73 03 28)
>>
>>
>> == Test Case ==
>> A test kernel was built with this patch and tested by the original bug reporter.
>>
>>
>> Masaki Ota (1):
>>  Input: ALPS - fix V8+ protocol handling (73 03 28)
>>
>> drivers/input/mouse/alps.c | 66 +++++++++++++++++++++++++++++++++++-----------
>> drivers/input/mouse/alps.h | 21 ++++++++++++++-
>> 2 files changed, 70 insertions(+), 17 deletions(-)
>>
>> --
>> 2.7.4
>>
>>
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>>


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APPLIED: [SRU][Xenial][Yakkety][PATCH 0/1] Input: ALPS - fix V8+ protocol handling (73 03 28)

Thadeu Lima de Souza Cascardo-3
In reply to this post by Joseph Salisbury-3
Applied to xenial and yakkety master-next branches.

Thanks.
Cascardo.

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