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Commit e9f66cdb authored by Dmitry Torokhov's avatar Dmitry Torokhov
Browse files

Input: eeti_ts - use get_unaligned_be16() to retrieve data 



Instead of manually converting big endian data on wire into host
endianness, let's use helpers to do that for us. It might save us
a few cycles if host endianness matches what's on wire.

Reviewed-by: default avatarDaniel Mack <daniel@zonque.org>
Signed-off-by: default avatarDmitry Torokhov <dmitry.torokhov@gmail.com>
parent 272c03bb

drivers/input/touchscreen/eeti_ts.c

+4 −2
Original line number Diff line number Diff line
@@ -34,6 +34,7 @@ 
#include <linux/gpio.h>

#include <linux/input/eeti_ts.h>

#include <linux/slab.h>

#include <asm/unaligned.h>



static bool flip_x;

module_param(flip_x, bool, 0644);
@@ -89,8 +90,9 @@ static void eeti_ts_read(struct work_struct *work) 


	pressed = buf[0] & REPORT_BIT_PRESSED;

	res = REPORT_RES_BITS(buf[0] & (REPORT_BIT_AD0 | REPORT_BIT_AD1));

	x = buf[2] | (buf[1] << 8);

	y = buf[4] | (buf[3] << 8);



	x = get_unaligned_be16(&buf[1]);

	y = get_unaligned_be16(&buf[3]);



	/* fix the range to 11 bits */

	x >>= res - EETI_TS_BITDEPTH;