ENGR00221444 HDMI: video mode wrong when bootup without HDMI cable

Bootup Android without HDMI cable plugin, then plugin HDMI cable,
video mode in /sys/class/graphics/fb0/mode not same as actually
HDMI work video mode.

The root cause is in video mode point to one of video mode in
original video modelist, but the modelist will be updated when
HDMI cable plug to new monitor.
If HDMI original worked video mode can work on new monitor,
the HDMI and framebuffer will not updated, so HDMI actually
work mode not same as /sys/class/graphics/fb0/mode

Updated fbi mode pointer even if video mode no changed
in case moselist is updated, the issue will fixed.

Signed-off-by: Sandor Yu <R01008@freescale.com>

diff --git a/drivers/video/mxc_hdmi.c b/drivers/video/mxc_hdmi.c
index d5f3b5dc3096d56952bee34f4cd7f2f1c65e88e8..0144f7f2cc69b02bc7da4b9d797a92a25bb80919 100644 (file)
--- a/drivers/video/mxc_hdmi.c
+++ b/drivers/video/mxc_hdmi.c
@@ -1655,6 +1655,8 @@ static void mxc_hdmi_set_mode(struct mxc_hdmi *hdmi)
        if (fb_mode_is_equal(&hdmi->previous_non_vga_mode, mode)) {
                dev_dbg(&hdmi->pdev->dev,
                                "%s: Video mode same as previous\n", __func__);
+               /* update fbi mode in case modelist is updated */
+               hdmi->fbi->mode = mode;
                mxc_hdmi_phy_init(hdmi);
        } else {
                dev_dbg(&hdmi->pdev->dev, "%s: New video mode\n", __func__);