From d0bc6c5baae3a711f5039ea5440bafb37ebdfc24 Mon Sep 17 00:00:00 2001 From: Balaji Rao Date: Wed, 28 Jan 2009 19:30:45 +0000 Subject: [PATCH 6/8] Subject: fix_glamo_xrandr_bug.patch fix_glamo_xrandr_bug.patch This patch reintroduces the 2-cycle delay used when accessing glamo-fb registers. This seems to be required even when the corresponding registers in HOST_BUS are off. Signed-off-by: Balaji Rao --- drivers/mfd/glamo/glamo-fb.c | 10 ++++++++++ 1 files changed, 10 insertions(+), 0 deletions(-) diff --git a/drivers/mfd/glamo/glamo-fb.c b/drivers/mfd/glamo/glamo-fb.c index 64fe464..91cf75b 100644 --- a/drivers/mfd/glamo/glamo-fb.c +++ b/drivers/mfd/glamo/glamo-fb.c @@ -86,12 +86,22 @@ static struct platform_device glamo_spi_dev = { static int reg_read(struct glamofb_handle *glamo, u_int16_t reg) { + int i = 0; + + for (i = 0; i != 2; i ++) + nop(); + return readw(glamo->base + reg); } static void reg_write(struct glamofb_handle *glamo, u_int16_t reg, u_int16_t val) { + int i = 0; + + for (i = 0; i != 2; i ++) + nop(); + writew(val, glamo->base + reg); } -- 1.5.2.2