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From: Jonathan Corbet on 8 Apr 2010 13:30
From: Chris Ball <cjb(a)laptop.org>

The i2c transactions involved in detecting LVDS (9 seconds) and TMDS
(16 seconds) add an extra 25 seconds to viafb load time on the XO-1.5.

[jc: minor merge conflict fixed]
Signed-off-by: Chris Ball <cjb(a)laptop.org>
---
drivers/video/via/hw.c | 4 ++++
drivers/video/via/lcd.c | 4 ++++
2 files changed, 8 insertions(+), 0 deletions(-)

diff --git a/drivers/video/via/hw.c b/drivers/video/via/hw.c
index 7be462e..47ba09a 100644
--- a/drivers/video/via/hw.c
+++ b/drivers/video/via/hw.c
@@ -2054,6 +2054,10 @@ static void init_gfx_chip_info(struct pci_dev *pdev,

static void init_tmds_chip_info(void)
{
+#ifdef CONFIG_OLPC_XO_1_5
+ if (machine_is_olpc())
+ return;
+#endif
viafb_tmds_trasmitter_identify();

if (INTERFACE_NONE == viaparinfo->chip_info->tmds_chip_info.
diff --git a/drivers/video/via/lcd.c b/drivers/video/via/lcd.c
index e0e2310..37a9746 100644
--- a/drivers/video/via/lcd.c
+++ b/drivers/video/via/lcd.c
@@ -208,6 +208,10 @@ static bool lvds_identify_integratedlvds(void)

int viafb_lvds_trasmitter_identify(void)
{
+#ifdef CONFIG_OLPC_XO_1_5
+ if (machine_is_olpc())
+ return FAIL;
+#endif
viaparinfo->shared->i2c_stuff.i2c_port = I2CPORTINDEX;
if (viafb_lvds_identify_vt1636()) {
viaparinfo->chip_info->lvds_chip_info.i2c_port = I2CPORTINDEX;
--
1.7.0.1

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Prev: [PATCH 11/16] Minimal support for viafb suspend/resume
Next: [GIT PULL] perf fix