Speed up LCD driver on Ingenic Jz4740 by doing some sort of partial LCD updates.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20997 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 3 insertions, 5 deletions

diff --git a/firmware/target/mips/ingenic_jz47xx/lcd-jz4740.c b/firmware/target/mips/ingenic_jz47xx/lcd-jz4740.c
index 44d80e1c58..e3b1bd918b 100644
--- a/firmware/target/mips/ingenic_jz47xx/lcd-jz4740.c
+++ b/firmware/target/mips/ingenic_jz47xx/lcd-jz4740.c
@@ -71,13 +71,11 @@ bool lcd_active(void)
 /* Update a fraction of the display. */
 void lcd_update_rect(int x, int y, int width, int height)
 {
-    /* Currently only do full updates.
-     * DMA can't handle partial updates and CPU is too slow compared
-     * to full DMA updates */
+   /* Currently only do updates with full LCD width.
+     * DMA can't handle full partial updates and CPU is too slow compared
+     * to DMA updates */
     x = 0;
-    y = 0;
     width = LCD_WIDTH;
-    height = LCD_HEIGHT;
 
     mutex_lock(&lcd_mtx);