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| author | Jean-Francois Moine <moinejf@free.fr> | 2015-07-17 13:07:35 +0200 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2015-08-05 10:48:44 +0100 |
| commit | 4a6ca1a2c2530af4611024476ba7005bf0336dfe (patch) | |
| tree | 4b7b1864ee40f30f9fe23ff33d95427e82ef419e /drivers/gpu/drm | |
| parent | 5296b7f9d0e1ac31a9bc3044f04af18a521b9459 (diff) | |
| download | linux-4a6ca1a2c2530af4611024476ba7005bf0336dfe.tar.bz2 | |
drm/i2c: tda998x: fix bad checksum of the HDMI AVI infoframe
The commit 8c7a075da9f7980cc95ffcd7e6621d4a87f20f40
"drm/i2c: tda998x: use drm_hdmi_avi_infoframe_from_display_mode()"
also uses hdmi_avi_infoframe_pack() to create the AVI infoframe.
This function sets the checksum of the frame and this breaks
the second calculation of the checksum done in tda998x_write_if().
Fixes: 8c7a075da9f7980c ("drm/i2c: tda998x: use drm_hdmi_avi_infoframe_from_display_mode()")
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/gpu/drm')
| -rw-r--r-- | drivers/gpu/drm/i2c/tda998x_drv.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/gpu/drm/i2c/tda998x_drv.c b/drivers/gpu/drm/i2c/tda998x_drv.c index 290a69d2315a..e7f20009f9c1 100644 --- a/drivers/gpu/drm/i2c/tda998x_drv.c +++ b/drivers/gpu/drm/i2c/tda998x_drv.c @@ -582,8 +582,6 @@ static void tda998x_write_if(struct tda998x_priv *priv, uint8_t bit, uint16_t addr, uint8_t *buf, size_t size) { - buf[PB(0)] = tda998x_cksum(buf, size); - reg_clear(priv, REG_DIP_IF_FLAGS, bit); reg_write_range(priv, addr, buf, size); reg_set(priv, REG_DIP_IF_FLAGS, bit); @@ -603,6 +601,8 @@ tda998x_write_aif(struct tda998x_priv *priv, struct tda998x_encoder_params *p) buf[PB(4)] = p->audio_frame[4]; buf[PB(5)] = p->audio_frame[5] & 0xf8; /* DM_INH + LSV */ + buf[PB(0)] = tda998x_cksum(buf, sizeof(buf)); + tda998x_write_if(priv, DIP_IF_FLAGS_IF4, REG_IF4_HB0, buf, sizeof(buf)); } |