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Merge git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6

* git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6:
  favr32: improve touchscreen response
  avr32/lib: fix unaligned memcpy where len < 4
  avr32/lib: fix unaligned memcpy()
Linus Torvalds 16 years ago
parent
commit
e40c9056db
2 changed files with 17 additions and 3 deletions
  1. 4 0
      arch/avr32/boards/favr-32/setup.c
  2. 13 3
      arch/avr32/lib/memcpy.S

+ 4 - 0
arch/avr32/boards/favr-32/setup.c

@@ -72,6 +72,10 @@ static struct ads7846_platform_data ads7843_data = {
 	.debounce_max		= 20,
 	.debounce_rep		= 4,
 	.debounce_tol		= 5,
+
+	.keep_vref_on		= true,
+	.settle_delay_usecs	= 500,
+	.penirq_recheck_delay_usecs = 100,
 };
 
 static struct spi_board_info __initdata spi1_board_info[] = {

+ 13 - 3
arch/avr32/lib/memcpy.S

@@ -24,8 +24,8 @@ memcpy:
 	brne	1f
 
 	/* At this point, "from" is word-aligned */
-2:	sub	r10, 4
-	mov	r9, r12
+2:	mov	r9, r12
+5:	sub	r10, 4
 	brlt	4f
 
 3:	ld.w	r8, r11++
@@ -49,6 +49,7 @@ memcpy:
 
 	/* Handle unaligned "from" pointer */
 1:	sub	r10, 4
+	movlt	r9, r12
 	brlt	4b
 	add	r10, r9
 	lsl	r9, 2
@@ -59,4 +60,13 @@ memcpy:
 	st.b	r12++, r8
 	ld.ub	r8, r11++
 	st.b	r12++, r8
-	rjmp	2b
+	mov	r8, r12
+	add	pc, pc, r9
+	sub	r8, 1
+	nop
+	sub	r8, 1
+	nop
+	sub	r8, 1
+	nop
+	mov	r9, r8
+	rjmp	5b