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From: Luca Ceresoli <luca.ceresoli@bootlin.com>
To: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>,
	 Maxime Ripard <mripard@kernel.org>,
	Thomas Zimmermann <tzimmermann@suse.de>,
	 David Airlie <airlied@gmail.com>,
	Simona Vetter <simona@ffwll.ch>,
	 Andrzej Hajda <andrzej.hajda@intel.com>,
	 Neil Armstrong <neil.armstrong@linaro.org>,
	Robert Foss <rfoss@kernel.org>,
	 Laurent Pinchart <Laurent.pinchart@ideasonboard.com>,
	 Jonas Karlman <jonas@kwiboo.se>,
	Jernej Skrabec <jernej.skrabec@gmail.com>,
	 Inki Dae <inki.dae@samsung.com>,
	Jagan Teki <jagan@amarulasolutions.com>,
	 Marek Szyprowski <m.szyprowski@samsung.com>,
	 Jani Nikula <jani.nikula@linux.intel.com>,
	 Dmitry Baryshkov <lumag@kernel.org>
Cc: Hui Pu <Hui.Pu@gehealthcare.com>,
	 Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
	 dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
	 linux-sunxi@lists.linux.dev,
	Luca Ceresoli <luca.ceresoli@bootlin.com>,
	 Kevin Hilman <khilman@baylibre.com>,
	Jerome Brunet <jbrunet@baylibre.com>,
	 Martin Blumenstingl <martin.blumenstingl@googlemail.com>,
	 linux-amlogic@lists.infradead.org
Subject: [PATCH RFC 12/32] drm/meson: dsi: remove unneeded DSI device check
Date: Wed, 25 Jun 2025 18:45:16 +0200	[thread overview]
Message-ID: <20250625-drm-dsi-host-no-device-ptr-v1-12-e36bc258a7c5@bootlin.com> (raw)
In-Reply-To: <20250625-drm-dsi-host-no-device-ptr-v1-0-e36bc258a7c5@bootlin.com>

This check is not really needed: there is no reason the detaching client
can be different from the attached one. Should this happen, that would be a
bug elsewhere.

Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>

---

**NOTE**: I'm not 100% sure this is correct, but it appears so, and other
drivers have no such check. And anyway it appears that such a check should
belong to the core, not to individual drivers. Comments welcome!

To: Kevin Hilman <khilman@baylibre.com>
To: Jerome Brunet <jbrunet@baylibre.com>
To: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Cc: linux-amlogic@lists.infradead.org
---
 drivers/gpu/drm/meson/meson_dw_mipi_dsi.c | 5 -----
 1 file changed, 5 deletions(-)

diff --git a/drivers/gpu/drm/meson/meson_dw_mipi_dsi.c b/drivers/gpu/drm/meson/meson_dw_mipi_dsi.c
index 66c73c512b0e68ff0e9dbbfaba5f8bf2d347e6b1..4dc726cef5455075def7927a469ae23020ebfec7 100644
--- a/drivers/gpu/drm/meson/meson_dw_mipi_dsi.c
+++ b/drivers/gpu/drm/meson/meson_dw_mipi_dsi.c
@@ -252,11 +252,6 @@ static int meson_dw_mipi_dsi_host_detach(void *priv_data,
 {
 	struct meson_dw_mipi_dsi *mipi_dsi = priv_data;
 
-	if (device == mipi_dsi->dsi_device)
-		mipi_dsi->dsi_device = NULL;
-	else
-		return -EINVAL;
-
 	return phy_exit(mipi_dsi->phy);
 }
 

-- 
2.49.0


  parent reply	other threads:[~2025-06-25 16:47 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2025-06-25 16:45 [PATCH 00/32] drm/mipi-dsi: avoid DSI host drivers to have pointers to DSI devices Luca Ceresoli
2025-06-25 16:45 ` [PATCH 01/32] drm/mipi-dsi: add sanity check of lane number in mipi_dsi_attach() Luca Ceresoli
2025-06-25 16:45 ` [PATCH 02/32] drm/hisilicon/kirin: remove redundant lanes number check Luca Ceresoli
2025-06-25 16:45 ` [PATCH 03/32] drm/bridge: nwl-dsi: " Luca Ceresoli
2025-06-25 16:45 ` [PATCH 04/32] drm/mcde: " Luca Ceresoli
2025-06-25 16:45 ` [PATCH 05/32] drm/mipi-dsi: log DSI device attach and detach Luca Ceresoli
2025-06-25 16:45 ` [PATCH 06/32] drm/bridge: samsung-dsim: remove redundant logging Luca Ceresoli
2025-06-25 16:45 ` [PATCH 07/32] drm/bridge: nwl-dsi: " Luca Ceresoli
2025-06-25 16:45 ` [PATCH 08/32] drm/bridge: cdns-dsi: " Luca Ceresoli
2025-06-25 16:45 ` [PATCH 09/32] drm/mcde: " Luca Ceresoli
2025-06-25 16:45 ` [PATCH 10/32] drm/sun4i: dsi: " Luca Ceresoli
2025-06-25 16:45 ` [PATCH 11/32] drm/bridge: synopsys/dsi2: remove DSI device pointer from private callbacks Luca Ceresoli
2025-06-25 16:45 ` Luca Ceresoli [this message]
2025-06-25 16:45 ` [PATCH 13/32] drm/mipi-dsi: move format define above Luca Ceresoli
2025-06-25 16:45 ` [PATCH 14/32] drm/mipi-dsi: add .attach_new to mipi_dsi_host_ops Luca Ceresoli
2025-06-25 16:45 ` [PATCH 15/32] drm: adp: mipi: convert to the .attach_new op Luca Ceresoli
2025-06-25 16:45 ` [PATCH 16/32] drm/kmb: dsi: " Luca Ceresoli
2025-06-25 16:45 ` [PATCH 17/32] drm/i915/dsi: " Luca Ceresoli
2025-06-25 18:42   ` Jani Nikula
2025-06-25 16:45 ` [PATCH 18/32] drm/hisilicon/kirin: " Luca Ceresoli
2025-06-25 16:45 ` [PATCH 19/32] drm/bridge: synopsys/dsi2: " Luca Ceresoli
2025-06-25 16:45 ` [PATCH 20/32] drm/msm/dsi: " Luca Ceresoli
2025-06-25 16:45 ` [PATCH 21/32] drm/rcar-du: dsi: " Luca Ceresoli
2025-06-25 16:45 ` [PATCH 22/32] drm: renesas: rz-du: rzg2l_mipi_dsi: " Luca Ceresoli
2025-06-26 23:42   ` kernel test robot
2025-06-25 16:45 ` [PATCH 23/32] drm/vc4: dsi: " Luca Ceresoli
2025-06-25 16:45 ` [PATCH 24/32] drm/mediatek: " Luca Ceresoli
2025-06-25 16:45 ` [PATCH 25/32] drm/bridge: nwl-dsi: " Luca Ceresoli
2025-06-25 16:45 ` [PATCH 26/32] drm/bridge: cdns-dsi: " Luca Ceresoli
2025-06-25 16:45 ` [PATCH 27/32] drm/bridge: tc358768: " Luca Ceresoli
2025-06-25 16:45 ` [PATCH 28/32] drm/sprd: " Luca Ceresoli
2025-06-25 16:45 ` [PATCH 29/32] drm/bridge: synopsys: dw-mipi-dsi: " Luca Ceresoli
2025-06-25 16:45 ` [PATCH 30/32] drm/mcde: store a pointer to mipi_dsi_host to perform TE requests Luca Ceresoli
2025-06-25 16:45 ` [PATCH 31/32] drm/mcde: use the DSI host pointer in mcde_dsi_irq Luca Ceresoli
2025-06-25 16:45 ` [PATCH 32/32] drm/mcde: convert to the .attach_new op Luca Ceresoli
2025-07-07  6:16 ` [PATCH 00/32] drm/mipi-dsi: avoid DSI host drivers to have pointers to DSI devices Maxime Ripard
2025-07-07  9:58   ` Luca Ceresoli
2025-07-07 10:13     ` Luca Ceresoli
2025-07-14 15:28       ` Luca Ceresoli
2025-07-25 15:22       ` Maxime Ripard
2025-07-25 15:32         ` Luca Ceresoli
2025-07-25 15:17     ` Maxime Ripard

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