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| author | Lucas Stach <l.stach@pengutronix.de> | 2019-04-12 17:59:40 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-05-16 09:17:23 +0200 |
| commit | 913fbfc3fd78bfa4e89eb2c154ff5e6ea8a4cbdd (patch) | |
| tree | ae85372079c608682eda9531f27706a76e1ab3a0 | |
| parent | fad368428284c40b3f5be1f362acaf6ebc3ad467 (diff) | |
| download | linux-stable-913fbfc3fd78bfa4e89eb2c154ff5e6ea8a4cbdd.tar.gz linux-stable-913fbfc3fd78bfa4e89eb2c154ff5e6ea8a4cbdd.tar.bz2 linux-stable-913fbfc3fd78bfa4e89eb2c154ff5e6ea8a4cbdd.zip | |
gpu: ipu-v3: dp: fix CSC handling
[ Upstream commit d4fad0a426c6e26f48c9a7cdd21a7fe9c198d645 ]
Initialize the flow input colorspaces to unknown and reset to that value
when the channel gets disabled. This avoids the state getting mixed up
with a previous mode.
Also keep the CSC settings for the background flow intact when disabling
the foreground flow.
Root-caused-by: Jonathan Marek <jonathan@marek.ca>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/gpu/ipu-v3/ipu-dp.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/drivers/gpu/ipu-v3/ipu-dp.c b/drivers/gpu/ipu-v3/ipu-dp.c index 98686edbcdbb..33de3a1bac49 100644 --- a/drivers/gpu/ipu-v3/ipu-dp.c +++ b/drivers/gpu/ipu-v3/ipu-dp.c @@ -195,7 +195,8 @@ int ipu_dp_setup_channel(struct ipu_dp *dp, ipu_dp_csc_init(flow, flow->foreground.in_cs, flow->out_cs, DP_COM_CONF_CSC_DEF_BOTH); } else { - if (flow->foreground.in_cs == flow->out_cs) + if (flow->foreground.in_cs == IPUV3_COLORSPACE_UNKNOWN || + flow->foreground.in_cs == flow->out_cs) /* * foreground identical to output, apply color * conversion on background @@ -261,6 +262,8 @@ void ipu_dp_disable_channel(struct ipu_dp *dp) struct ipu_dp_priv *priv = flow->priv; u32 reg, csc; + dp->in_cs = IPUV3_COLORSPACE_UNKNOWN; + if (!dp->foreground) return; @@ -268,8 +271,9 @@ void ipu_dp_disable_channel(struct ipu_dp *dp) reg = readl(flow->base + DP_COM_CONF); csc = reg & DP_COM_CONF_CSC_DEF_MASK; - if (csc == DP_COM_CONF_CSC_DEF_FG) - reg &= ~DP_COM_CONF_CSC_DEF_MASK; + reg &= ~DP_COM_CONF_CSC_DEF_MASK; + if (csc == DP_COM_CONF_CSC_DEF_BOTH || csc == DP_COM_CONF_CSC_DEF_BG) + reg |= DP_COM_CONF_CSC_DEF_BG; reg &= ~DP_COM_CONF_FG_EN; writel(reg, flow->base + DP_COM_CONF); @@ -350,6 +354,8 @@ int ipu_dp_init(struct ipu_soc *ipu, struct device *dev, unsigned long base) mutex_init(&priv->mutex); for (i = 0; i < IPUV3_NUM_FLOWS; i++) { + priv->flow[i].background.in_cs = IPUV3_COLORSPACE_UNKNOWN; + priv->flow[i].foreground.in_cs = IPUV3_COLORSPACE_UNKNOWN; priv->flow[i].foreground.foreground = true; priv->flow[i].base = priv->base + ipu_dp_flow_base[i]; priv->flow[i].priv = priv; |