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From: Jagan Teki <jagan@amarulasolutions.com>
To: Andrzej Hajda <andrzej.hajda@intel.com>,
	Inki Dae <inki.dae@samsung.com>,
	Marek Szyprowski <m.szyprowski@samsung.com>,
	Joonyoung Shim <jy0922.shim@samsung.com>,
	Seung-Woo Kim <sw0312.kim@samsung.com>,
	Kyungmin Park <kyungmin.park@samsung.com>,
	Frieder Schrempf <frieder.schrempf@kontron.de>,
	Fancy Fang <chen.fang@nxp.com>,
	Tim Harvey <tharvey@gateworks.com>,
	Michael Nazzareno Trimarchi <michael@amarulasolutions.com>,
	Adam Ford <aford173@gmail.com>,
	Neil Armstrong <narmstrong@baylibre.com>,
	Robert Foss <robert.foss@linaro.org>,
	Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
	Tommaso Merciai <tommaso.merciai@amarulasolutions.com>,
	Marek Vasut <marex@denx.de>
Cc: Matteo Lisi <matteo.lisi@engicam.com>,
	dri-devel@lists.freedesktop.org,
	linux-samsung-soc@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	NXP Linux Team <linux-imx@nxp.com>,
	linux-amarula <linux-amarula@amarulasolutions.com>,
	Jagan Teki <jagan@amarulasolutions.com>
Subject: [PATCH v4 01/12] drm: exynos: dsi: Restore proper bridge chain order
Date: Tue, 30 Aug 2022 00:10:20 +0530	[thread overview]
Message-ID: <20220829184031.1863663-2-jagan@amarulasolutions.com> (raw)
In-Reply-To: <20220829184031.1863663-1-jagan@amarulasolutions.com>

From: Marek Szyprowski <m.szyprowski@samsung.com>

Restore the proper bridge chain by finding the previous bridge
in the chain instead of passing NULL.

This establishes a proper bridge chain while attaching downstream
bridges.

v4:
* none

v3:
* new patch

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
---
 drivers/gpu/drm/exynos/exynos_drm_dsi.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
index ec673223d6b7..e5b1540c4ae4 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
@@ -1428,7 +1428,8 @@ static int exynos_dsi_attach(struct drm_bridge *bridge,
 {
 	struct exynos_dsi *dsi = bridge_to_dsi(bridge);
 
-	return drm_bridge_attach(bridge->encoder, dsi->out_bridge, NULL, flags);
+	return drm_bridge_attach(bridge->encoder, dsi->out_bridge, bridge,
+				 flags);
 }
 
 static const struct drm_bridge_funcs exynos_dsi_bridge_funcs = {
@@ -1474,7 +1475,10 @@ static int exynos_dsi_host_attach(struct mipi_dsi_host *host,
 
 	drm_bridge_add(&dsi->bridge);
 
-	drm_bridge_attach(encoder, &dsi->bridge, NULL, 0);
+	drm_bridge_attach(encoder, &dsi->bridge,
+			  list_first_entry_or_null(&encoder->bridge_chain,
+						   struct drm_bridge,
+						   chain_node), 0);
 
 	/*
 	 * This is a temporary solution and should be made by more generic way.
-- 
2.25.1


WARNING: multiple messages have this Message-ID (diff)
From: Jagan Teki <jagan@amarulasolutions.com>
To: Andrzej Hajda <andrzej.hajda@intel.com>,
	Inki Dae <inki.dae@samsung.com>,
	Marek Szyprowski <m.szyprowski@samsung.com>,
	Joonyoung Shim <jy0922.shim@samsung.com>,
	Seung-Woo Kim <sw0312.kim@samsung.com>,
	Kyungmin Park <kyungmin.park@samsung.com>,
	Frieder Schrempf <frieder.schrempf@kontron.de>,
	Fancy Fang <chen.fang@nxp.com>,
	Tim Harvey <tharvey@gateworks.com>,
	Michael Nazzareno Trimarchi <michael@amarulasolutions.com>,
	Adam Ford <aford173@gmail.com>,
	Neil Armstrong <narmstrong@baylibre.com>,
	Robert Foss <robert.foss@linaro.org>,
	Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
	Tommaso Merciai <tommaso.merciai@amarulasolutions.com>,
	Marek Vasut <marex@denx.de>
Cc: linux-samsung-soc@vger.kernel.org,
	Matteo Lisi <matteo.lisi@engicam.com>,
	dri-devel@lists.freedesktop.org,
	NXP Linux Team <linux-imx@nxp.com>,
	linux-amarula <linux-amarula@amarulasolutions.com>,
	linux-arm-kernel@lists.infradead.org,
	Jagan Teki <jagan@amarulasolutions.com>
Subject: [PATCH v4 01/12] drm: exynos: dsi: Restore proper bridge chain order
Date: Tue, 30 Aug 2022 00:10:20 +0530	[thread overview]
Message-ID: <20220829184031.1863663-2-jagan@amarulasolutions.com> (raw)
In-Reply-To: <20220829184031.1863663-1-jagan@amarulasolutions.com>

From: Marek Szyprowski <m.szyprowski@samsung.com>

Restore the proper bridge chain by finding the previous bridge
in the chain instead of passing NULL.

This establishes a proper bridge chain while attaching downstream
bridges.

v4:
* none

v3:
* new patch

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
---
 drivers/gpu/drm/exynos/exynos_drm_dsi.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
index ec673223d6b7..e5b1540c4ae4 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
@@ -1428,7 +1428,8 @@ static int exynos_dsi_attach(struct drm_bridge *bridge,
 {
 	struct exynos_dsi *dsi = bridge_to_dsi(bridge);
 
-	return drm_bridge_attach(bridge->encoder, dsi->out_bridge, NULL, flags);
+	return drm_bridge_attach(bridge->encoder, dsi->out_bridge, bridge,
+				 flags);
 }
 
 static const struct drm_bridge_funcs exynos_dsi_bridge_funcs = {
@@ -1474,7 +1475,10 @@ static int exynos_dsi_host_attach(struct mipi_dsi_host *host,
 
 	drm_bridge_add(&dsi->bridge);
 
-	drm_bridge_attach(encoder, &dsi->bridge, NULL, 0);
+	drm_bridge_attach(encoder, &dsi->bridge,
+			  list_first_entry_or_null(&encoder->bridge_chain,
+						   struct drm_bridge,
+						   chain_node), 0);
 
 	/*
 	 * This is a temporary solution and should be made by more generic way.
-- 
2.25.1


WARNING: multiple messages have this Message-ID (diff)
From: Jagan Teki <jagan@amarulasolutions.com>
To: Andrzej Hajda <andrzej.hajda@intel.com>,
	Inki Dae <inki.dae@samsung.com>,
	Marek Szyprowski <m.szyprowski@samsung.com>,
	Joonyoung Shim <jy0922.shim@samsung.com>,
	Seung-Woo Kim <sw0312.kim@samsung.com>,
	Kyungmin Park <kyungmin.park@samsung.com>,
	Frieder Schrempf <frieder.schrempf@kontron.de>,
	Fancy Fang <chen.fang@nxp.com>,
	Tim Harvey <tharvey@gateworks.com>,
	Michael Nazzareno Trimarchi <michael@amarulasolutions.com>,
	Adam Ford <aford173@gmail.com>,
	Neil Armstrong <narmstrong@baylibre.com>,
	Robert Foss <robert.foss@linaro.org>,
	Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
	Tommaso Merciai <tommaso.merciai@amarulasolutions.com>,
	Marek Vasut <marex@denx.de>
Cc: Matteo Lisi <matteo.lisi@engicam.com>,
	dri-devel@lists.freedesktop.org,
	linux-samsung-soc@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	NXP Linux Team <linux-imx@nxp.com>,
	linux-amarula <linux-amarula@amarulasolutions.com>,
	Jagan Teki <jagan@amarulasolutions.com>
Subject: [PATCH v4 01/12] drm: exynos: dsi: Restore proper bridge chain order
Date: Tue, 30 Aug 2022 00:10:20 +0530	[thread overview]
Message-ID: <20220829184031.1863663-2-jagan@amarulasolutions.com> (raw)
In-Reply-To: <20220829184031.1863663-1-jagan@amarulasolutions.com>

From: Marek Szyprowski <m.szyprowski@samsung.com>

Restore the proper bridge chain by finding the previous bridge
in the chain instead of passing NULL.

This establishes a proper bridge chain while attaching downstream
bridges.

v4:
* none

v3:
* new patch

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Jagan Teki <jagan@amarulasolutions.com>
---
 drivers/gpu/drm/exynos/exynos_drm_dsi.c | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/exynos/exynos_drm_dsi.c b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
index ec673223d6b7..e5b1540c4ae4 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_dsi.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_dsi.c
@@ -1428,7 +1428,8 @@ static int exynos_dsi_attach(struct drm_bridge *bridge,
 {
 	struct exynos_dsi *dsi = bridge_to_dsi(bridge);
 
-	return drm_bridge_attach(bridge->encoder, dsi->out_bridge, NULL, flags);
+	return drm_bridge_attach(bridge->encoder, dsi->out_bridge, bridge,
+				 flags);
 }
 
 static const struct drm_bridge_funcs exynos_dsi_bridge_funcs = {
@@ -1474,7 +1475,10 @@ static int exynos_dsi_host_attach(struct mipi_dsi_host *host,
 
 	drm_bridge_add(&dsi->bridge);
 
-	drm_bridge_attach(encoder, &dsi->bridge, NULL, 0);
+	drm_bridge_attach(encoder, &dsi->bridge,
+			  list_first_entry_or_null(&encoder->bridge_chain,
+						   struct drm_bridge,
+						   chain_node), 0);
 
 	/*
 	 * This is a temporary solution and should be made by more generic way.
-- 
2.25.1


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  reply	other threads:[~2022-08-29 18:41 UTC|newest]

Thread overview: 76+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-08-29 18:40 [PATCH v4 00/12] drm: bridge: Add Samsung MIPI DSIM bridge Jagan Teki
2022-08-29 18:40 ` Jagan Teki
2022-08-29 18:40 ` Jagan Teki
2022-08-29 18:40 ` Jagan Teki [this message]
2022-08-29 18:40   ` [PATCH v4 01/12] drm: exynos: dsi: Restore proper bridge chain order Jagan Teki
2022-08-29 18:40   ` Jagan Teki
2022-08-29 18:40 ` [PATCH v4 02/12] drm: bridge: Add Samsung DSIM bridge driver Jagan Teki
2022-09-02 10:47   ` Marek Szyprowski
2022-09-02 10:47     ` Marek Szyprowski
2022-09-02 10:47     ` Marek Szyprowski
2022-09-05 11:24     ` Marek Szyprowski
2022-09-05 11:24       ` Marek Szyprowski
2022-09-05 11:24       ` Marek Szyprowski
2022-09-06 19:07       ` Jagan Teki
2022-09-06 19:07         ` Jagan Teki
2022-09-06 19:07         ` Jagan Teki
2022-09-07 10:04         ` Marek Szyprowski
2022-09-07 10:04           ` Marek Szyprowski
2022-09-07 10:04           ` Marek Szyprowski
2022-09-12 14:52           ` Frieder Schrempf
2022-09-12 14:52             ` Frieder Schrempf
2022-09-12 14:52             ` Frieder Schrempf
2022-09-13 17:29           ` Jagan Teki
2022-09-13 17:29             ` Jagan Teki
2022-09-13 17:29             ` Jagan Teki
2022-09-14  9:21             ` Marek Szyprowski
2022-09-14  9:21               ` Marek Szyprowski
2022-09-14  9:21               ` Marek Szyprowski
2022-09-14  9:39               ` Jagan Teki
2022-09-14  9:39                 ` Jagan Teki
2022-09-14  9:39                 ` Jagan Teki
2022-09-16  8:28                 ` Marek Szyprowski
2022-09-16  8:28                   ` Marek Szyprowski
2022-09-16  8:28                   ` Marek Szyprowski
2022-09-16 10:21                   ` Jagan Teki
2022-09-16 10:21                     ` Jagan Teki
2022-09-16 10:21                     ` Jagan Teki
2022-09-19  6:22                     ` Marek Szyprowski
2022-09-19  6:22                       ` Marek Szyprowski
2022-09-19  6:22                       ` Marek Szyprowski
2022-08-29 18:40 ` [PATCH v4 03/12] drm: bridge: samsung-dsim: Lookup OF-graph or Child node devices Jagan Teki
2022-08-29 18:40   ` Jagan Teki
2022-08-29 18:40   ` Jagan Teki
2022-08-29 18:40 ` [PATCH v4 04/12] drm: bridge: samsung-dsim: Handle platform init via driver_data Jagan Teki
2022-08-29 18:40   ` Jagan Teki
2022-08-29 18:40   ` Jagan Teki
2022-08-29 18:40 ` [PATCH v4 05/12] drm: bridge: samsung-dsim: Mark PHY as optional Jagan Teki
2022-08-29 18:40   ` Jagan Teki
2022-08-29 18:40   ` Jagan Teki
2022-08-29 18:40 ` [PATCH v4 06/12] drm: bridge: samsung-dsim: Handle proper DSI host initialization Jagan Teki
2022-08-29 18:40   ` Jagan Teki
2022-08-29 18:40   ` Jagan Teki
2022-08-29 18:40 ` [PATCH v4 07/12] drm: bridge: samsung-dsim: Fix PLL_P (PMS_P) offset Jagan Teki
2022-08-29 18:40   ` Jagan Teki
2022-08-29 18:40   ` Jagan Teki
2022-08-29 19:42   ` Adam Ford
2022-08-29 19:42     ` Adam Ford
2022-08-29 19:42     ` Adam Ford
2022-09-14  8:22     ` Jagan Teki
2022-09-14  8:22       ` Jagan Teki
2022-09-14  8:22       ` Jagan Teki
2022-08-29 18:40 ` [PATCH v4 08/12] drm: bridge: samsung-dsim: Add atomic_check Jagan Teki
2022-08-29 18:40   ` Jagan Teki
2022-08-29 18:40   ` Jagan Teki
2022-08-29 18:40 ` [PATCH v4 09/12] drm: bridge: samsung-dsim: Add atomic_get_input_bus_fmts Jagan Teki
2022-08-29 18:40   ` Jagan Teki
2022-08-29 18:40   ` Jagan Teki
2022-08-29 18:40 ` [PATCH v4 10/12] drm: bridge: samsung-dsim: Add input_bus_flags Jagan Teki
2022-08-29 18:40   ` Jagan Teki
2022-08-29 18:40   ` Jagan Teki
2022-08-29 18:40 ` [PATCH v4 11/12] dt-bindings: display: exynos: dsim: Add NXP i.MX8MM support Jagan Teki
2022-08-29 18:40   ` Jagan Teki
2022-08-29 18:40   ` Jagan Teki
2022-08-29 18:40 ` [PATCH v4 12/12] drm: bridge: samsung-dsim: Add " Jagan Teki
2022-08-29 18:40   ` Jagan Teki
2022-08-29 18:40   ` Jagan Teki

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