[PATCH 1/1][Resend] Input: cypress_ps2 - Return zero finger count if palm is detected.

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On 09/30/2013 04:12 PM, Kamal Mostafa wrote:
> On Tue, 2013-09-24 at 11:44 -0400, Joseph Salisbury wrote:
>> BugLink: http://bugs.launchpad.net/bugs/1229361
>>
>> This patch sets the finger count to 0 in the case of palm contact.
>>
>> Signed-off-by: Joseph Salisbury <joseph.salisbury@xxxxxxxxxxxxx>
>> Cc: Dmitry Torokhov <dmitry.torokhov@xxxxxxxxx> (maintainer:INPUT (KEYBOARD,...,commit_signer:2/2=100%)
>> Cc: Henrik Rydberg <rydberg@xxxxxxxxxxx> (maintainer:INPUT MULTITOUCH...)
>> Cc: Kamal Mostafa <kamal@xxxxxxxxxxxxx> (commit_signer:2/2=100%)
>> Cc: Dudley Du <dudl@xxxxxxxxxxx> (commit_signer:2/2=100%)
>> Cc: Kyle Fazzari <git@xxxxxxxxxxxxxxxxx> (commit_signer:1/2=50%)
>> Cc: Tim Gardner <tim.gardner@xxxxxxxxxxxxx> (commit_signer:1/2=50%)
>> Cc: linux-input@xxxxxxxxxxxxxxx (open list:INPUT (KEYBOARD,...)
>> Cc: linux-kernel@xxxxxxxxxxxxxxx (open list)
>> Cc: stable@xxxxxxxxxxxxxxx
> This patch works fine: eliminates stream of junk driver messages with no
> ill effects.
>
> Tested-by: Kamal Mostafa <kamal@xxxxxxxxxxxxx>
>
>  -Kamal
>
>
>> ---
>>  drivers/input/mouse/cypress_ps2.c |    4 ++--
>>  1 file changed, 2 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/input/mouse/cypress_ps2.c b/drivers/input/mouse/cypress_ps2.c
>> index 45b3eda..95b2c40 100644
>> --- a/drivers/input/mouse/cypress_ps2.c
>> +++ b/drivers/input/mouse/cypress_ps2.c
>> @@ -441,7 +441,7 @@ static int cypress_get_finger_count(unsigned char header_byte)
>>  			case 2: return 5;
>>  			default:
>>  				/* Invalid contact (e.g. palm). Ignore it. */
>> -				return -1;
>> +				return 0;
>>  		}
>>  	}
>>  
>> @@ -460,7 +460,7 @@ static int cypress_parse_packet(struct psmouse *psmouse,
>>  
>>  	contact_cnt = cypress_get_finger_count(header_byte);
>>  
>> -	if (contact_cnt < 0) /* e.g. palm detect */
>> +	if (contact_cnt < 0)
>>  		return -EINVAL;
>>  
>>  	report_data->contact_cnt = contact_cnt;
Hi Dmitry and Henrik,

Have you had a chance to review this patch to consider it for inclusion
in mainline?

Thanks,

Joe

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