From: moinejf@free.fr (Jean-Francois Moine)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v2 14/28] drm/i2c: tda998x: get a better status of the connexion
Date: Thu, 9 Jan 2014 12:04:28 +0100 [thread overview]
Message-ID: <20140109120428.1ea7ec3a@armhf> (raw)
This patch refines the connexion status testing both bits RXSENS and
HPD of the CEC register giving the connexion level.
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
---
drivers/gpu/drm/i2c/tda998x_drv.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i2c/tda998x_drv.c b/drivers/gpu/drm/i2c/tda998x_drv.c
index 2187d63..0cae820 100644
--- a/drivers/gpu/drm/i2c/tda998x_drv.c
+++ b/drivers/gpu/drm/i2c/tda998x_drv.c
@@ -1009,7 +1009,9 @@ tda998x_encoder_detect(struct drm_encoder *encoder,
struct tda998x_priv *priv = to_tda998x_priv(encoder);
uint8_t val = cec_read(priv, REG_CEC_RXSHPDLEV);
- return (val & CEC_RXSHPDLEV_HPD) ? connector_status_connected :
+ return (val & (CEC_RXSHPDLEV_RXSENS | CEC_RXSHPDLEV_HPD)) ==
+ (CEC_RXSHPDLEV_RXSENS | CEC_RXSHPDLEV_HPD) ?
+ connector_status_connected :
connector_status_disconnected;
}
--
Ken ar c'henta? | ** Breizh ha Linux atav! **
Jef | http://moinejf.free.fr/
next reply other threads:[~2014-01-09 11:04 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-01-09 11:04 Jean-Francois Moine [this message]
2014-01-11 18:15 ` [PATCH v2 14/28] drm/i2c: tda998x: get a better status of the connexion Russell King - ARM Linux
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