From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> To: dri-devel@lists.freedesktop.org Cc: linux-renesas-soc@vger.kernel.org, Kieran Bingham <kieran.bingham@ideasonboard.com> Subject: [PATCH v2 07/10] drm: rcar-du: Skip LVDS1 output on Gen3 when using dual-link LVDS mode Date: Sun, 12 May 2019 00:06:59 +0300 [thread overview] Message-ID: <20190511210702.18394-8-laurent.pinchart+renesas@ideasonboard.com> (raw) In-Reply-To: <20190511210702.18394-1-laurent.pinchart+renesas@ideasonboard.com> In dual-link LVDS mode, the LVDS1 encoder is used as a companion for LVDS0, and both encoders transmit data from DU0. The LVDS1 output of DU1 can't be used in that case, don't create an encoder and connector for it. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> --- drivers/gpu/drm/rcar-du/rcar_du_encoder.c | 12 ++++++++++++ drivers/gpu/drm/rcar-du/rcar_du_kms.c | 2 +- 2 files changed, 13 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/rcar-du/rcar_du_encoder.c b/drivers/gpu/drm/rcar-du/rcar_du_encoder.c index 6c91753af7bc..fe046d194944 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_encoder.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_encoder.c @@ -16,6 +16,7 @@ #include "rcar_du_drv.h" #include "rcar_du_encoder.h" #include "rcar_du_kms.h" +#include "rcar_lvds.h" /* ----------------------------------------------------------------------------- * Encoder @@ -97,6 +98,17 @@ int rcar_du_encoder_init(struct rcar_du_device *rcdu, } } + /* + * On Gen3 skip the LVDS1 output if the LVDS1 encoder is used as a + * companion for LVDS0 in dual-link mode. + */ + if (rcdu->info->gen >= 3 && output == RCAR_DU_OUTPUT_LVDS1) { + if (bridge && rcar_lvds_dual_link(bridge)) { + ret = -ENOLINK; + goto done; + } + } + ret = drm_encoder_init(rcdu->ddev, encoder, &encoder_funcs, DRM_MODE_ENCODER_NONE, NULL); if (ret < 0) diff --git a/drivers/gpu/drm/rcar-du/rcar_du_kms.c b/drivers/gpu/drm/rcar-du/rcar_du_kms.c index f8f7fff34dff..95c81e59e2f1 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_kms.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_kms.c @@ -378,7 +378,7 @@ static int rcar_du_encoders_init_one(struct rcar_du_device *rcdu, } ret = rcar_du_encoder_init(rcdu, output, entity); - if (ret && ret != -EPROBE_DEFER) + if (ret && ret != -EPROBE_DEFER && ret != -ENOLINK) dev_warn(rcdu->dev, "failed to initialize encoder %pOF on output %u (%d), skipping\n", entity, output, ret); -- Regards, Laurent Pinchart
WARNING: multiple messages have this Message-ID (diff)
From: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> To: dri-devel@lists.freedesktop.org Cc: linux-renesas-soc@vger.kernel.org, Kieran Bingham <kieran.bingham@ideasonboard.com> Subject: [PATCH v2 07/10] drm: rcar-du: Skip LVDS1 output on Gen3 when using dual-link LVDS mode Date: Sun, 12 May 2019 00:06:59 +0300 [thread overview] Message-ID: <20190511210702.18394-8-laurent.pinchart+renesas@ideasonboard.com> (raw) In-Reply-To: <20190511210702.18394-1-laurent.pinchart+renesas@ideasonboard.com> In dual-link LVDS mode, the LVDS1 encoder is used as a companion for LVDS0, and both encoders transmit data from DU0. The LVDS1 output of DU1 can't be used in that case, don't create an encoder and connector for it. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> --- drivers/gpu/drm/rcar-du/rcar_du_encoder.c | 12 ++++++++++++ drivers/gpu/drm/rcar-du/rcar_du_kms.c | 2 +- 2 files changed, 13 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/rcar-du/rcar_du_encoder.c b/drivers/gpu/drm/rcar-du/rcar_du_encoder.c index 6c91753af7bc..fe046d194944 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_encoder.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_encoder.c @@ -16,6 +16,7 @@ #include "rcar_du_drv.h" #include "rcar_du_encoder.h" #include "rcar_du_kms.h" +#include "rcar_lvds.h" /* ----------------------------------------------------------------------------- * Encoder @@ -97,6 +98,17 @@ int rcar_du_encoder_init(struct rcar_du_device *rcdu, } } + /* + * On Gen3 skip the LVDS1 output if the LVDS1 encoder is used as a + * companion for LVDS0 in dual-link mode. + */ + if (rcdu->info->gen >= 3 && output == RCAR_DU_OUTPUT_LVDS1) { + if (bridge && rcar_lvds_dual_link(bridge)) { + ret = -ENOLINK; + goto done; + } + } + ret = drm_encoder_init(rcdu->ddev, encoder, &encoder_funcs, DRM_MODE_ENCODER_NONE, NULL); if (ret < 0) diff --git a/drivers/gpu/drm/rcar-du/rcar_du_kms.c b/drivers/gpu/drm/rcar-du/rcar_du_kms.c index f8f7fff34dff..95c81e59e2f1 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_kms.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_kms.c @@ -378,7 +378,7 @@ static int rcar_du_encoders_init_one(struct rcar_du_device *rcdu, } ret = rcar_du_encoder_init(rcdu, output, entity); - if (ret && ret != -EPROBE_DEFER) + if (ret && ret != -EPROBE_DEFER && ret != -ENOLINK) dev_warn(rcdu->dev, "failed to initialize encoder %pOF on output %u (%d), skipping\n", entity, output, ret); -- Regards, Laurent Pinchart _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel
next prev parent reply other threads:[~2019-05-11 21:07 UTC|newest] Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-05-11 21:06 [PATCH v2 00/10] R-Car DU: LVDS dual-link mode support Laurent Pinchart 2019-05-11 21:06 ` Laurent Pinchart 2019-05-11 21:06 ` [PATCH v2 01/10] drm: bridge: Add dual_link field to the drm_bridge_timings structure Laurent Pinchart 2019-05-11 21:06 ` Laurent Pinchart 2019-05-11 21:06 ` [PATCH v2 02/10] dt-bindings: display: bridge: thc63lvd1024: Document dual-link operation Laurent Pinchart 2019-05-11 21:06 ` Laurent Pinchart 2019-05-12 8:58 ` Geert Uytterhoeven 2019-05-12 8:58 ` Geert Uytterhoeven 2019-05-12 10:22 ` Laurent Pinchart 2019-05-12 10:22 ` Laurent Pinchart 2019-05-14 20:17 ` Rob Herring 2019-05-14 20:17 ` Rob Herring 2019-05-11 21:06 ` [PATCH v2 03/10] drm: bridge: thc63: Report input bus mode through bridge timings Laurent Pinchart 2019-05-11 21:06 ` Laurent Pinchart 2019-05-28 9:05 ` Jacopo Mondi 2019-05-28 9:05 ` Jacopo Mondi 2019-05-11 21:06 ` [PATCH v2 04/10] dt-bindings: display: renesas: lvds: Add renesas, companion property Laurent Pinchart 2019-05-11 21:06 ` [PATCH v2 04/10] dt-bindings: display: renesas: lvds: Add renesas,companion property Laurent Pinchart 2019-05-28 9:28 ` Jacopo Mondi 2019-05-28 9:28 ` Jacopo Mondi 2019-05-28 12:30 ` Laurent Pinchart 2019-05-28 12:30 ` Laurent Pinchart 2019-05-11 21:06 ` [PATCH v2 05/10] drm: rcar-du: lvds: Remove LVDS double-enable checks Laurent Pinchart 2019-05-11 21:06 ` Laurent Pinchart 2019-05-28 9:40 ` Jacopo Mondi 2019-05-28 9:40 ` Jacopo Mondi 2019-05-11 21:06 ` [PATCH v2 06/10] drm: rcar-du: lvds: Add support for dual-link mode Laurent Pinchart 2019-05-11 21:06 ` Laurent Pinchart 2019-05-28 9:35 ` Jacopo Mondi 2019-05-28 9:35 ` Jacopo Mondi 2019-05-28 12:46 ` Laurent Pinchart 2019-05-28 12:46 ` Laurent Pinchart 2019-05-11 21:06 ` Laurent Pinchart [this message] 2019-05-11 21:06 ` [PATCH v2 07/10] drm: rcar-du: Skip LVDS1 output on Gen3 when using dual-link LVDS mode Laurent Pinchart 2019-05-28 9:38 ` Jacopo Mondi 2019-05-28 9:38 ` Jacopo Mondi 2019-05-11 21:07 ` [PATCH v2 08/10] arm64: dts: renesas: r8a7799[05]: Point LVDS0 to its companion LVDS1 Laurent Pinchart 2019-05-11 21:07 ` Laurent Pinchart 2019-05-28 9:39 ` Jacopo Mondi 2019-05-28 9:39 ` Jacopo Mondi 2019-05-11 21:07 ` [PATCH v2 09/10] [HACK] arm64: dts: renesas: draak: Enable LVDS dual-link operation Laurent Pinchart 2019-05-11 21:07 ` Laurent Pinchart 2019-05-11 21:07 ` [PATCH v2 10/10] [HACK] arm64: dts: renesas: ebisu: " Laurent Pinchart 2019-05-11 21:07 ` Laurent Pinchart 2019-05-12 8:55 ` [PATCH v2 00/10] R-Car DU: LVDS dual-link mode support Geert Uytterhoeven 2019-05-12 8:55 ` Geert Uytterhoeven 2019-05-12 10:15 ` Laurent Pinchart 2019-05-12 10:15 ` Laurent Pinchart 2019-05-28 10:20 ` Jacopo Mondi 2019-05-28 10:20 ` Jacopo Mondi
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