On 2015年07月03日 16:02, Tomasz Figa wrote:
Hi Mark,
Please see my comments inline.
On Fri, Jun 26, 2015 at 7:10 PM, Mark Yao <mark.yao@xxxxxxxxxxxxxx> wrote:
Win2/3 support 4 area display, but now havn't found a suitable
way to use it, and it enable by win gate and area gate,
so default enable area0 gate, so that its behaviour just like a
win.
So I assume this means that currently, without those bits set, win2
and win3 do not work? This would make this patch a fix maybe even with
a potential backportability.
Yes, without this patch, all win2/3 area gate default disabled.
vop_update_plane_event call win enable only enable the win gate.
Signed-off-by: Mark Yao <mark.yao@xxxxxxxxxxxxxx>
---
Changes in v2: None
drivers/gpu/drm/rockchip/rockchip_drm_vop.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
index 40107bb..e001d26 100644
--- a/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
+++ b/drivers/gpu/drm/rockchip/rockchip_drm_vop.c
@@ -337,6 +337,12 @@ static const struct vop_reg_data vop_init_reg_table[] = {
{DSP_CTRL0, 0x00000000},
{WIN0_CTRL0, 0x00000080},
{WIN1_CTRL0, 0x00000080},
+ /*
+ * Todo: win2/3 support area func, but now havn't found a suitable
+ * way to use it, so default enable area0 as a win display.
TODO: Win2/3 support multiple area function, but we haven't found
a suitable way to use it yet, so let's just use them as other windows
with only area 0 enabled.
+ */
+ {WIN2_CTRL0, 0x00000010},
+ {WIN3_CTRL0, 0x00000010},
Anyway, is it enough to program those registers one time in
vop_initial()? Won't they get cleared when VOP is power cycled, e.g.
in case of DPMS off and on? Maybe instead this could be done in
vop_update_plane_event() for windows that need it?
There are two gate for Win2/3,
at VOP_WIN3_CTRL0:
bit[0], "win3_en"
this gating all the area.
bit[4], win3_mst0_en
bit[5], win3_mst1_en
bit[6], win3_mst2_en
bit[7], win3_mst3_en
those gate each area.
This patch default enable win3_mst0_en, so control bit[0]"win3_en" that
cat power on/off this window.
vop_update_plane_event()/ vop_disable_plane() only can control bit[0]"win3_en".
So this patch is enough to enable window2/3 area 0.
Best regards,
Tomasz
--
Ｍark
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