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charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250604-of_drm_find_panel_part1-v1-1-c632e12e131d@redhat.com> References: <20250604-of_drm_find_panel_part1-v1-0-c632e12e131d@redhat.com> In-Reply-To: <20250604-of_drm_find_panel_part1-v1-0-c632e12e131d@redhat.com> To: Neil Armstrong , Jessica Zhang , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Inki Dae , Jagan Teki , Marek Szyprowski , Andrzej Hajda , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Chen-Yu Tsai , Samuel Holland , Seung-Woo Kim , Kyungmin Park , Krzysztof Kozlowski , Alim Akhtar Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-samsung-soc@vger.kernel.org, Anusha Srivatsa X-Developer-Signature: v=1; a=ed25519-sha256; t=1749095111; l=1068; i=asrivats@redhat.com; s=20250122; h=from:subject:message-id; bh=9zlGo30GCNSbMrsJ6h0xg1RV+1gEkhPqt5tGuwTBh00=; 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Use get() and put() helpers to keep up with refcounting. Signed-off-by: Anusha Srivatsa --- drivers/gpu/drm/drm_panel.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/drm_panel.c b/drivers/gpu/drm/drm_panel.c index fee65dc65979d6c03753967cefa6d5c4e597277d..ffa3428b5f52c599b53b1fdc0d0= a9181a47c91d4 100644 --- a/drivers/gpu/drm/drm_panel.c +++ b/drivers/gpu/drm/drm_panel.c @@ -80,6 +80,7 @@ EXPORT_SYMBOL(drm_panel_init); */ void drm_panel_add(struct drm_panel *panel) { + drm_panel_get(panel); mutex_lock(&panel_lock); list_add_tail(&panel->list, &panel_list); mutex_unlock(&panel_lock); @@ -97,6 +98,7 @@ void drm_panel_remove(struct drm_panel *panel) mutex_lock(&panel_lock); list_del_init(&panel->list); mutex_unlock(&panel_lock); + drm_panel_put(panel); } EXPORT_SYMBOL(drm_panel_remove); =20 --=20 2.48.1 From nobody Fri Dec 19 19:18:40 2025 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 3E2D77263D for ; 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Signed-off-by: Anusha Srivatsa --- drivers/gpu/drm/bridge/samsung-dsim.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/bridge/samsung-dsim.c b/drivers/gpu/drm/bridge= /samsung-dsim.c index 0014c497e3fe7d8349a119dbdda30d65d816cccf..3667855ff0d6d1b608c579573de= 657af7fd14388 100644 --- a/drivers/gpu/drm/bridge/samsung-dsim.c +++ b/drivers/gpu/drm/bridge/samsung-dsim.c @@ -1748,6 +1748,7 @@ static int samsung_dsim_host_attach(struct mipi_dsi_h= ost *host, dsi->out_bridge =3D ERR_PTR(-EINVAL); } =20 + drm_panel_put(panel); of_node_put(remote); =20 if (IS_ERR(dsi->out_bridge)) { --=20 2.48.1 From nobody Fri Dec 19 19:18:40 2025 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.133.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B73221FECCD for ; Thu, 5 Jun 2025 03:46:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; 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Signed-off-by: Anusha Srivatsa --- drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c b/drivers/gpu/drm/sun4i= /sun6i_mipi_dsi.c index c35b70d83e53b7397c6e38dde45824bd49fdf099..36d47d7cedde1e1e3e83eb67052= 0664100bd0a25 100644 --- a/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c +++ b/drivers/gpu/drm/sun4i/sun6i_mipi_dsi.c @@ -990,6 +990,8 @@ static int sun6i_dsi_detach(struct mipi_dsi_host *host, =20 drm_kms_helper_hotplug_event(dsi->drm); =20 + drm_panel_put(dsi->panel); + return 0; } =20 --=20 2.48.1 From nobody Fri Dec 19 19:18:40 2025 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 03FA3200B9F for ; Thu, 5 Jun 2025 03:46:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal: i=1; 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charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250604-of_drm_find_panel_part1-v1-4-c632e12e131d@redhat.com> References: <20250604-of_drm_find_panel_part1-v1-0-c632e12e131d@redhat.com> In-Reply-To: <20250604-of_drm_find_panel_part1-v1-0-c632e12e131d@redhat.com> To: Neil Armstrong , Jessica Zhang , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Simona Vetter , Inki Dae , Jagan Teki , Marek Szyprowski , Andrzej Hajda , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , Chen-Yu Tsai , Samuel Holland , Seung-Woo Kim , Kyungmin Park , Krzysztof Kozlowski , Alim Akhtar Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-sunxi@lists.linux.dev, linux-samsung-soc@vger.kernel.org, Anusha Srivatsa X-Developer-Signature: v=1; a=ed25519-sha256; t=1749095111; l=790; i=asrivats@redhat.com; s=20250122; h=from:subject:message-id; bh=oUAUULa8xvF5LlZB5tbq87rz3uMzHi3pU21DzZn+Vdo=; b=m9T9DvEk7AHTO8PjuGGuJd4n+/GgbhkJzocE3hfstzW9Lp1snMcHMfDrBcDrOYExSB1as9ZkZ QwCScTfjRI8C8A/wkHRdNaRhHj92TooFMlpXTThKTAStQzd5NoFTYBl X-Developer-Key: i=asrivats@redhat.com; a=ed25519; pk=brnIHkBsUZEhyW6Zyn0U92AeIZ1psws/q8VFbIkf1AU= X-Scanned-By: MIMEDefang 3.4.1 on 10.30.177.4 Put the panel reference back when driver is no longer using it. Signed-off-by: Anusha Srivatsa --- drivers/gpu/drm/exynos/exynos_drm_dpi.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/exynos/exynos_drm_dpi.c b/drivers/gpu/drm/exyn= os/exynos_drm_dpi.c index 0dc36df6ada34cd0d4544f14e616fe3c52dafc73..7b82ff7f2d2761a679fe3b319a7= 3f7d1d4c87033 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_dpi.c +++ b/drivers/gpu/drm/exynos/exynos_drm_dpi.c @@ -138,6 +138,7 @@ static void exynos_dpi_disable(struct drm_encoder *enco= der) drm_panel_disable(ctx->panel); drm_panel_unprepare(ctx->panel); } + drm_panel_put(ctx->panel); } =20 static const struct drm_encoder_helper_funcs exynos_dpi_encoder_helper_fun= cs =3D { --=20 2.48.1