From 9a9016832d2601a290db4dce6dd55552bdae5b1a Mon Sep 17 00:00:00 2001 From: Mythri P K Date: Mon, 2 Jan 2012 14:02:38 +0530 Subject: OMAPDSS: HDMI: Disable DDC internal pull up Disables the internal pull resistor for SDA and SCL which are enabled by default, as there are external pull up's in 4460 and 4430 ES2.3 SDP, Blaze and Panda Boards, It is done to avoid the EDID read failure. Signed-off-by: Ricardo Salveti de Araujo Signed-off-by: Mythri P K Signed-off-by: Tomi Valkeinen --- arch/arm/mach-omap2/board-4430sdp.c | 9 ++++++++- 1 file changed, 8 insertions(+), 1 deletion(-) (limited to 'arch/arm/mach-omap2/board-4430sdp.c') diff --git a/arch/arm/mach-omap2/board-4430sdp.c b/arch/arm/mach-omap2/board-4430sdp.c index 312b158240e..e1fe304ce36 100644 --- a/arch/arm/mach-omap2/board-4430sdp.c +++ b/arch/arm/mach-omap2/board-4430sdp.c @@ -814,7 +814,14 @@ static void omap_4430sdp_display_init(void) sdp4430_lcd_init(); sdp4430_picodlp_init(); omap_display_init(&sdp4430_dss_data); - omap_hdmi_init(); + /* + * OMAP4460SDP/Blaze and OMAP4430 ES2.3 SDP/Blaze boards and + * later have external pull up on the HDMI I2C lines + */ + if (cpu_is_omap446x() || omap_rev() > OMAP4430_REV_ES2_2) + omap_hdmi_init(OMAP_HDMI_SDA_SCL_EXTERNAL_PULLUP); + else + omap_hdmi_init(0); } #ifdef CONFIG_OMAP_MUX -- cgit v1.2.3-70-g09d2