[PATCH 6/9] drm: sti: fix hdmi avi infoframe
Benjamin Gaignard
benjamin.gaignard at linaro.org
Fri Dec 5 00:35:04 PST 2014
The hardware expect to have the infoframe checksum in the first byte.
In consequence shift all infoframe on one byte.
Signed-off-by: Benjamin Gaignard <benjamin.gaignard at linaro.org>
---
drivers/gpu/drm/sti/sti_hdmi.c | 33 +++++++++++++++++----------------
1 file changed, 17 insertions(+), 16 deletions(-)
diff --git a/drivers/gpu/drm/sti/sti_hdmi.c b/drivers/gpu/drm/sti/sti_hdmi.c
index 1921197..d032e02 100644
--- a/drivers/gpu/drm/sti/sti_hdmi.c
+++ b/drivers/gpu/drm/sti/sti_hdmi.c
@@ -272,31 +272,32 @@ static int hdmi_avi_infoframe_config(struct sti_hdmi *hdmi)
hdmi_write(hdmi, val, HDMI_SW_DI_CFG);
/* Infoframe header */
- val = buffer[0x0];
- val |= buffer[0x1] << 8;
- val |= buffer[0x2] << 16;
+ val = buffer[0];
+ val |= buffer[1] << 8;
+ val |= buffer[2] << 16;
hdmi_write(hdmi, val, HDMI_SW_DI_N_HEAD_WORD(HDMI_IFRAME_SLOT_AVI));
/* Infoframe packet bytes */
- val = frame[0x0];
- val |= frame[0x1] << 8;
- val |= frame[0x2] << 16;
- val |= frame[0x3] << 24;
+ val = buffer[3];
+ val |= *(frame++) << 8;
+ val |= *(frame++) << 16;
+ val |= *(frame++) << 24;
hdmi_write(hdmi, val, HDMI_SW_DI_N_PKT_WORD0(HDMI_IFRAME_SLOT_AVI));
- val = frame[0x4];
- val |= frame[0x5] << 8;
- val |= frame[0x6] << 16;
- val |= frame[0x7] << 24;
+ val = *(frame++);
+ val |= *(frame++) << 8;
+ val |= *(frame++) << 16;
+ val |= *(frame++) << 24;
hdmi_write(hdmi, val, HDMI_SW_DI_N_PKT_WORD1(HDMI_IFRAME_SLOT_AVI));
- val = frame[0x8];
- val |= frame[0x9] << 8;
- val |= frame[0xA] << 16;
- val |= frame[0xB] << 24;
+ val = *(frame++);
+ val |= *(frame++) << 8;
+ val |= *(frame++) << 16;
+ val |= *(frame++) << 24;
hdmi_write(hdmi, val, HDMI_SW_DI_N_PKT_WORD2(HDMI_IFRAME_SLOT_AVI));
- val = frame[0xC];
+ val = *(frame++);
+ val |= *(frame) << 8;
hdmi_write(hdmi, val, HDMI_SW_DI_N_PKT_WORD3(HDMI_IFRAME_SLOT_AVI));
/* Enable transmission slot for AVI infoframe
--
1.9.1
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