hw/display/artist: Allow screen size up to 2048 lines

Adjust the ADDR_TO_Y() macro to extract 11 bits, which allows userspace
to address screen sizes up to 2048 lines (instead of 1024 before).

Signed-off-by: Helge Deller <deller@gmx.de>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>

diff --git a/hw/display/artist.c b/hw/display/artist.c
index 16d85c6..955296d 100644 (file)
--- a/hw/display/artist.c
+++ b/hw/display/artist.c
@@ -193,7 +193,7 @@ static const char *artist_reg_name(uint64_t addr)
 #undef REG_NAME
 
 /* artist has a fixed line length of 2048 bytes. */
-#define ADDR_TO_Y(addr) extract32(addr, 11, 10)
+#define ADDR_TO_Y(addr) extract32(addr, 11, 11)
 #define ADDR_TO_X(addr) extract32(addr, 0, 11)
 
 static int16_t artist_get_x(uint32_t reg)