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From 0ec0f782c0d19b1e1293e8e281c335186ce3f3cc Mon Sep 17 00:00:00 2001
From: Vladimir Barinov <vladimir.barinov@cogentembedded.com>
Date: Tue, 30 May 2017 17:41:21 +0300
Subject: [PATCH] drm: adv7511: Enable HPD interrupts to support hotplug
This patch enables HPD (hot plug detect) interrupt support
Signed-off-by: Andrey Gusakov <andrey.gusakov@cogentembedded.com>
---
drivers/gpu/drm/bridge/adv7511/adv7511_drv.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
index a104b43..e20f475 100644
--- a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
+++ b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
@@ -55,7 +55,7 @@ static const struct reg_sequence adv7511_fixed_registers[] = {
{ 0x98, 0x03 },
{ 0x9a, 0xe0 },
{ 0x9c, 0x30 },
- { 0x9d, 0x61 },
+ { 0x9d, 0x01 },
{ 0xa2, 0xa4 },
{ 0xa3, 0xa4 },
{ 0xe0, 0xd0 },
@@ -369,7 +369,7 @@ static void adv7511_power_on(struct adv7511 *adv7511)
* Still, let's be safe and stick to the documentation.
*/
regmap_write(adv7511->regmap, ADV7511_REG_INT_ENABLE(0),
- ADV7511_INT0_EDID_READY);
+ ADV7511_INT0_EDID_READY | ADV7511_INT0_HPD);
regmap_write(adv7511->regmap, ADV7511_REG_INT_ENABLE(1),
ADV7511_INT1_DDC_ERROR);
}
@@ -575,7 +575,7 @@ static int adv7511_get_modes(struct adv7511 *adv7511,
ADV7511_POWER_POWER_DOWN, 0);
if (adv7511->i2c_main->irq) {
regmap_write(adv7511->regmap, ADV7511_REG_INT_ENABLE(0),
- ADV7511_INT0_EDID_READY);
+ ADV7511_INT0_EDID_READY | ADV7511_INT0_HPD);
regmap_write(adv7511->regmap, ADV7511_REG_INT_ENABLE(1),
ADV7511_INT1_DDC_ERROR);
}
--
1.9.1
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