Now correctly informs gcc that r0 is clobbered in lcd_write_data(). The video LED bug is now dead and buried.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@4147 a1c6a512-1295-4272-9138-f99709370657

apps/plugins/video.c

@@ -158,7 +158,6 @@ int main(char* filename)
     }
 
     rb->close(fd);
-    and_b(~0x40, &PBDRL); /* hack workaround to get the LED off */
 
     if (shown == SYS_USB_CONNECTED) /* exception */
         return PLUGIN_USB_CONNECTED;

firmware/drivers/lcd.c

@@ -280,6 +280,7 @@ void lcd_write_data(unsigned char* p_bytes, int count)
             /* %3 */ "r"(clk0sda0),
             /* %4 */ "r"(LCDR),
             /* %5 */ "I"(LCD_CS|LCD_DS|LCD_SD|LCD_SC)
+            : "r0"
         );
 
         sti();