From patchwork Mon Mar 21 13:52:51 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 12787290 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id B3BAAC433F5 for ; Mon, 21 Mar 2022 14:00:21 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E2C3910E46F; Mon, 21 Mar 2022 14:00:20 +0000 (UTC) Received: from ams.source.kernel.org (ams.source.kernel.org [IPv6:2604:1380:4601:e00::1]) by gabe.freedesktop.org (Postfix) with ESMTPS id E7DA710E46F for ; Mon, 21 Mar 2022 14:00:18 +0000 (UTC) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id 54F6DB816EF; Mon, 21 Mar 2022 14:00:17 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id C335CC340F2; Mon, 21 Mar 2022 14:00:14 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1647871215; bh=ZLNrGtC/1yYtaIEPvn2dN37TDlIhPm1AaMyY5zLM+o8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=L7NgKpvKl3q9avqaRcNYT4cF5OVB2Njhg6V/6NFTNzCmV8N6nR5CYGg4zR8tn0oNs 0XzNqdhFeKKiqsaF/PAz/FpIqS9CBgE82la5PICagMZnq4pyhnkb9hIzm7IT/tOxbJ vyFC+1NMT93lI+G79RQCu1fBChobyOyg1ilnteYk= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org Subject: [PATCH 5.15 15/32] drm/imx: parallel-display: Remove bus flags check in imx_pd_bridge_atomic_check() Date: Mon, 21 Mar 2022 14:52:51 +0100 Message-Id: <20220321133221.004491467@linuxfoundation.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220321133220.559554263@linuxfoundation.org> References: <20220321133220.559554263@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Christoph Niedermaier , Marek Vasut , Max Krummenacher , Sasha Levin , David Airlie , Greg Kroah-Hartman , Sascha Hauer , stable@vger.kernel.org, Boris Brezillon , NXP Linux Team , Shawn Guo , Pengutronix Kernel Team , linux-arm-kernel@lists.infradead.org Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Christoph Niedermaier [ Upstream commit 6061806a863e8b65b109eb06a280041cc7525442 ] If display timings were read from the devicetree using of_get_display_timing() and pixelclk-active is defined there, the flag DISPLAY_FLAGS_SYNC_POSEDGE/NEGEDGE is automatically generated. Through the function drm_bus_flags_from_videomode() e.g. called in the panel-simple driver this flag got into the bus flags, but then in imx_pd_bridge_atomic_check() the bus flag check failed and will not initialize the display. The original commit fe141cedc433 does not explain why this check was introduced. So remove the bus flags check, because it stops the initialization of the display with valid bus flags. Fixes: fe141cedc433 ("drm/imx: pd: Use bus format/flags provided by the bridge when available") Signed-off-by: Christoph Niedermaier Cc: Marek Vasut Cc: Boris Brezillon Cc: Philipp Zabel Cc: David Airlie Cc: Daniel Vetter Cc: Shawn Guo Cc: Sascha Hauer Cc: Pengutronix Kernel Team Cc: Fabio Estevam Cc: NXP Linux Team Cc: linux-arm-kernel@lists.infradead.org To: dri-devel@lists.freedesktop.org Tested-by: Max Krummenacher Acked-by: Boris Brezillon Signed-off-by: Marek Vasut Link: https://patchwork.freedesktop.org/patch/msgid/20220201113643.4638-1-cniedermaier@dh-electronics.com Signed-off-by: Maarten Lankhorst Signed-off-by: Sasha Levin --- drivers/gpu/drm/imx/parallel-display.c | 8 -------- 1 file changed, 8 deletions(-) diff --git a/drivers/gpu/drm/imx/parallel-display.c b/drivers/gpu/drm/imx/parallel-display.c index a8aba0141ce7..06cb1a59b9bc 100644 --- a/drivers/gpu/drm/imx/parallel-display.c +++ b/drivers/gpu/drm/imx/parallel-display.c @@ -217,14 +217,6 @@ static int imx_pd_bridge_atomic_check(struct drm_bridge *bridge, if (!imx_pd_format_supported(bus_fmt)) return -EINVAL; - if (bus_flags & - ~(DRM_BUS_FLAG_DE_LOW | DRM_BUS_FLAG_DE_HIGH | - DRM_BUS_FLAG_PIXDATA_DRIVE_POSEDGE | - DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE)) { - dev_warn(imxpd->dev, "invalid bus_flags (%x)\n", bus_flags); - return -EINVAL; - } - bridge_state->output_bus_cfg.flags = bus_flags; bridge_state->input_bus_cfg.flags = bus_flags; imx_crtc_state->bus_flags = bus_flags; From patchwork Mon Mar 21 13:52:54 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Greg KH X-Patchwork-Id: 12787291 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 7BFE7C433F5 for ; Mon, 21 Mar 2022 14:00:28 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id D5C5010E470; Mon, 21 Mar 2022 14:00:27 +0000 (UTC) Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by gabe.freedesktop.org (Postfix) with ESMTPS id 5DB6410E470 for ; Mon, 21 Mar 2022 14:00:26 +0000 (UTC) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 1CB5D612EC; Mon, 21 Mar 2022 14:00:24 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id EF5F9C340F2; Mon, 21 Mar 2022 14:00:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1647871223; bh=l/4aaPMy5P3KEVoiyumRgPHI+RSe1kw9SKejYd4DT4E=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=nMqWhC+RzVVyr5AFfcq9GQlpRpmN2Q10jRoxiP6ihfv7KJ6Q6kT0NpGi1u3fBBGNJ fTb0IAk7TMxRuF9v5OI2LvIQZ/6AiDF6KEcCPOVggjiVCRu3avJh+ytSva/smU3TV9 z1ly1ovtY/h1S0D/H7DMKtlK0OAmfVPWwQUjbhX0= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Subject: [PATCH 5.15 18/32] drm: Dont make DRM_PANEL_BRIDGE dependent on DRM_KMS_HELPERS Date: Mon, 21 Mar 2022 14:52:54 +0100 Message-Id: <20220321133221.091073183@linuxfoundation.org> X-Mailer: git-send-email 2.35.1 In-Reply-To: <20220321133220.559554263@linuxfoundation.org> References: <20220321133220.559554263@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: dri-devel@lists.freedesktop.org, Sasha Levin , kernel test robot , Greg Kroah-Hartman , Naresh Kamboju , Brian Masney , stable@vger.kernel.org, Thierry Reding , Thomas Zimmermann , Dave Airlie , Linux Kernel Functional Testing , Sam Ravnborg Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" From: Thomas Zimmermann [ Upstream commit 3c3384050d68570f9de0fec9e58824decfefba7a ] Fix a number of undefined references to drm_kms_helper.ko in drm_dp_helper.ko: arm-suse-linux-gnueabi-ld: drivers/gpu/drm/dp/drm_dp_mst_topology.o: in function `drm_dp_mst_duplicate_state': drm_dp_mst_topology.c:(.text+0x2df0): undefined reference to `__drm_atomic_helper_private_obj_duplicate_state' arm-suse-linux-gnueabi-ld: drivers/gpu/drm/dp/drm_dp_mst_topology.o: in function `drm_dp_delayed_destroy_work': drm_dp_mst_topology.c:(.text+0x370c): undefined reference to `drm_kms_helper_hotplug_event' arm-suse-linux-gnueabi-ld: drivers/gpu/drm/dp/drm_dp_mst_topology.o: in function `drm_dp_mst_up_req_work': drm_dp_mst_topology.c:(.text+0x7938): undefined reference to `drm_kms_helper_hotplug_event' arm-suse-linux-gnueabi-ld: drivers/gpu/drm/dp/drm_dp_mst_topology.o: in function `drm_dp_mst_link_probe_work': drm_dp_mst_topology.c:(.text+0x82e0): undefined reference to `drm_kms_helper_hotplug_event' This happens if panel-edp.ko has been configured with DRM_PANEL_EDP=y DRM_DP_HELPER=y DRM_KMS_HELPER=m which builds DP helpers into the kernel and KMS helpers sa a module. Making DRM_PANEL_EDP select DRM_KMS_HELPER resolves this problem. To avoid a resulting cyclic dependency with DRM_PANEL_BRIDGE, don't make the latter depend on DRM_KMS_HELPER and fix the one DRM bridge drivers that doesn't already select DRM_KMS_HELPER. As KMS helpers cannot be selected directly by the user, config symbols should avoid depending on it anyway. Signed-off-by: Thomas Zimmermann Fixes: 3755d35ee1d2 ("drm/panel: Select DRM_DP_HELPER for DRM_PANEL_EDP") Acked-by: Sam Ravnborg Tested-by: Brian Masney Reported-by: kernel test robot Cc: Thomas Zimmermann Cc: Naresh Kamboju Cc: Linux Kernel Functional Testing Cc: Lyude Paul Cc: Sam Ravnborg Cc: Daniel Vetter Cc: Maarten Lankhorst Cc: Maxime Ripard Cc: dri-devel@lists.freedesktop.org Cc: Dave Airlie Cc: Thierry Reding Link: https://patchwork.freedesktop.org/patch/478296/ Signed-off-by: Sasha Levin --- drivers/gpu/drm/bridge/Kconfig | 2 +- drivers/gpu/drm/panel/Kconfig | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/bridge/Kconfig b/drivers/gpu/drm/bridge/Kconfig index 431b6e12a81f..68ec45abc1fb 100644 --- a/drivers/gpu/drm/bridge/Kconfig +++ b/drivers/gpu/drm/bridge/Kconfig @@ -8,7 +8,6 @@ config DRM_BRIDGE config DRM_PANEL_BRIDGE def_bool y depends on DRM_BRIDGE - depends on DRM_KMS_HELPER select DRM_PANEL help DRM bridge wrapper of DRM panels @@ -30,6 +29,7 @@ config DRM_CDNS_DSI config DRM_CHIPONE_ICN6211 tristate "Chipone ICN6211 MIPI-DSI/RGB Converter bridge" depends on OF + select DRM_KMS_HELPER select DRM_MIPI_DSI select DRM_PANEL_BRIDGE help diff --git a/drivers/gpu/drm/panel/Kconfig b/drivers/gpu/drm/panel/Kconfig index f63fd0f90360..af1402d83d51 100644 --- a/drivers/gpu/drm/panel/Kconfig +++ b/drivers/gpu/drm/panel/Kconfig @@ -84,6 +84,7 @@ config DRM_PANEL_SIMPLE select VIDEOMODE_HELPERS select DRM_DP_AUX_BUS select DRM_DP_HELPER + select DRM_KMS_HELPER help DRM panel driver for dumb panels that need at most a regulator and a GPIO to be powered up. Optionally a backlight can be attached so