Eric Lee / smarc-ti-linux-kernel

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Commit 834c2e12b7fc2367b92e1e99f7c8ed19c1d1e477

Authored by Franklin S Cooper Jr
Committed by Sekhar Nori
1 parent bdc73d21cb
Exists in ti-lsk-linux-4.1.y and in 5 other branches processor-sdk-linux-02.00.01, smarc-ti-lsk-linux-4.1.y, smarct3x-processor-sdk-linux-02.00.01, smarct4x-800-processor-sdk-linux-02.00.01, smarct4x-processor-sdk-linux-02.00.01

Input: edt-ft5x06 - Use max support points to determine read length 

Calculate the amount of data that needs to be read for specified max number
of support points. If the maximum number of support points changes then the
amount that is read from the touch screen controller should reflect this.

Signed-off-by: Franklin S Cooper Jr <fcooper@ti.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>

Showing 1 changed file with 4 additions and 2 deletions Side-by-side Diff

drivers/input/touchscreen/edt-ft5x06.c
Diff comments   View file @ 834c2e1
... ... @@ -180,14 +180,16 @@
180 180 cmd = 0xf9; /* tell the controller to send touch data */
181 181 offset = 5; /* where the actual touch data starts */
182 182 tplen = 4; /* data comes in so called frames */
183   - datalen = 26; /* how much bytes to listen for */
  183 +
  184 + /* how many bytes to listen for */
  185 + datalen = tplen * MAX_SUPPORT_POINTS + offset + 1;
184 186 break;
185 187  
186 188 case M09:
187 189 cmd = 0x02;
188 190 offset = 1;
189 191 tplen = 6;
190   - datalen = 29;
  192 + datalen = tplen * MAX_SUPPORT_POINTS + 1 - cmd;
191 193 break;
192 194  
193 195 default: