From: Erik Gilling <konkers@android.com>
Date: Tue, 26 Oct 2010 22:29:11 +0000 (-0700)
Subject: video: tegra: transmute HDMI modes into supported ones
X-Git-Tag: firefly_0821_release~9833^2~140^2~1
X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=e4886b1e1b098af06720724770622caaa9721dc9;p=firefly-linux-kernel-4.4.55.git

video: tegra: transmute HDMI modes into supported ones

Change-Id: I37222e9d1617a0ace062e05740365cfe5c0c2af8
Signed-off-by: Erik Gilling <konkers@android.com>
---

diff --git a/drivers/video/tegra/dc/hdmi.c b/drivers/video/tegra/dc/hdmi.c
index 58ad135b90cc..acc3b36ea046 100644
--- a/drivers/video/tegra/dc/hdmi.c
+++ b/drivers/video/tegra/dc/hdmi.c
@@ -391,23 +391,26 @@ static void hdmi_dumpregs(struct tegra_dc_hdmi_data *hdmi)
 static bool tegra_dc_hdmi_mode_equal(const struct fb_videomode *mode1,
 					const struct fb_videomode *mode2)
 {
-	int diff = (s64)mode1->pixclock - (s64)mode2->pixclock;
-
 	return mode1->xres	== mode2->xres &&
 		mode1->yres	== mode2->yres &&
-		diff		< PIXCLOCK_TOLERANCE &&
-		diff		> -PIXCLOCK_TOLERANCE &&
 		mode1->vmode	== mode2->vmode;
 }
 
 static bool tegra_dc_hdmi_mode_filter(struct fb_videomode *mode)
 {
 	int i;
+	int clocks;
 
 	for (i = 0; i < ARRAY_SIZE(tegra_dc_hdmi_supported_modes); i++) {
 		if (tegra_dc_hdmi_mode_equal(&tegra_dc_hdmi_supported_modes[i],
-					     mode))
+					     mode)) {
+			memcpy(mode, &tegra_dc_hdmi_supported_modes[i], sizeof(*mode));
+			mode->flag = FB_MODE_IS_DETAILED;
+			clocks = (mode->left_margin + mode->xres + mode->right_margin + mode->hsync_len) *
+				(mode->upper_margin + mode->yres + mode->lower_margin + mode->vsync_len);
+			mode->refresh = (PICOS2KHZ(mode->pixclock) * 1000) / clocks;
 			return true;
+		}
 	}
 
 	return false;