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authorOlof Johansson <olof@lixom.net>2018-12-31 11:54:03 -0800
committerOlof Johansson <olof@lixom.net>2018-12-31 11:54:03 -0800
commitcac1fc8fb561ac766468394d49c3dd11a2b8cb44 (patch)
tree5483f72b13b766cfbd6f025d2a828fef3d1d0203 /drivers/gpu/drm/rcar-du/rcar_du_group.c
parentbd3fde386decf09317ff4a07cd0d05380a22f525 (diff)
parent54518ed45734bb7ebf2773b1d32120c62338cc93 (diff)
downloadtalos-obmc-linux-cac1fc8fb561ac766468394d49c3dd11a2b8cb44.tar.gz
talos-obmc-linux-cac1fc8fb561ac766468394d49c3dd11a2b8cb44.zip
Merge branch 'fixes' into next/soc
Merge in fixes here, since the last batch didn't make it in before the release of 4.20, and we might as well group them with this set of patches. * fixes: (822 commits) arm64: dts: renesas: draak: Fix CVBS input ARM: dts: Fix OMAP4430 SDP Ethernet startup ARM: dts: am335x-pdu001: Fix polarity of card detection input ARM: OMAP1: ams-delta: Fix audio permanently muted ARM: dts: omap5: Fix dual-role mode on Super-Speed port arm64: dts: rockchip: fix rk3399-rockpro64 regulator gpios ARM: dts: imx7d-nitrogen7: Fix the description of the Wifi clock ARM: imx: update the cpu power up timing setting on i.mx6sx Revert "arm64: dts: marvell: add CPU Idle power state support on Armada 7K/8K" ARM: dts: imx7d-pico: Describe the Wifi clock ARM: dts: realview: Fix some more duplicate regulator nodes MAINTAINERS: update entry for MMP platform ARM: mmp/mmp2: fix cpu_is_mmp2() on mmp2-dt MAINTAINERS: mediatek: Update SoC entry ARM: dts: bcm2837: Fix polarity of wifi reset GPIOs + Linux 4.20-rc5 Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'drivers/gpu/drm/rcar-du/rcar_du_group.c')
-rw-r--r--drivers/gpu/drm/rcar-du/rcar_du_group.c21
1 files changed, 18 insertions, 3 deletions
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_group.c b/drivers/gpu/drm/rcar-du/rcar_du_group.c
index d85f0a1c1581..cebf313c6e1f 100644
--- a/drivers/gpu/drm/rcar-du/rcar_du_group.c
+++ b/drivers/gpu/drm/rcar-du/rcar_du_group.c
@@ -202,10 +202,25 @@ void rcar_du_group_put(struct rcar_du_group *rgrp)
static void __rcar_du_group_start_stop(struct rcar_du_group *rgrp, bool start)
{
- struct rcar_du_crtc *rcrtc = &rgrp->dev->crtcs[rgrp->index * 2];
+ struct rcar_du_device *rcdu = rgrp->dev;
+
+ /*
+ * Group start/stop is controlled by the DRES and DEN bits of DSYSR0
+ * for the first group and DSYSR2 for the second group. On most DU
+ * instances, this maps to the first CRTC of the group, and we can just
+ * use rcar_du_crtc_dsysr_clr_set() to access the correct DSYSR. On
+ * M3-N, however, DU2 doesn't exist, but DSYSR2 does. We thus need to
+ * access the register directly using group read/write.
+ */
+ if (rcdu->info->channels_mask & BIT(rgrp->index * 2)) {
+ struct rcar_du_crtc *rcrtc = &rgrp->dev->crtcs[rgrp->index * 2];
- rcar_du_crtc_dsysr_clr_set(rcrtc, DSYSR_DRES | DSYSR_DEN,
- start ? DSYSR_DEN : DSYSR_DRES);
+ rcar_du_crtc_dsysr_clr_set(rcrtc, DSYSR_DRES | DSYSR_DEN,
+ start ? DSYSR_DEN : DSYSR_DRES);
+ } else {
+ rcar_du_group_write(rgrp, DSYSR,
+ start ? DSYSR_DEN : DSYSR_DRES);
+ }
}
void rcar_du_group_start_stop(struct rcar_du_group *rgrp, bool start)
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