Hi Mark,
Please see my comments inline.
On Fri, Jun 26, 2015 at 7:10 PM, Mark Yao mark.yao@rock-chips.com 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.
Signed-off-by: Mark Yao mark.yao@rock-chips.com
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?
Best regards, Tomasz