From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-20.4 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 4AA5AC11F67 for ; Tue, 6 Jul 2021 11:14:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 31FA0610F7 for ; Tue, 6 Jul 2021 11:14:47 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232053AbhGFLRY (ORCPT ); Tue, 6 Jul 2021 07:17:24 -0400 Received: from mail.kernel.org ([198.145.29.99]:51772 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231934AbhGFLRD (ORCPT ); Tue, 6 Jul 2021 07:17:03 -0400 Received: by mail.kernel.org (Postfix) with ESMTPSA id 64C6A61C20; Tue, 6 Jul 2021 11:14:23 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1625570065; bh=y5INbB7BhKNTobXp8zKDbun0s0xvNKCmJ4x0sSzC/yY=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=lOflU0SmNHhx9ZD7E5bVRgQAF+hpzGj7ix+DC4hKXwsL9Irnsh+x1iKRVfif8QWwg cIKt0yynK0HOFUPi7jrulpab62nLKfI2Z5ElOBpiSG/hYOeWAPxRl2OKLNKsF1tE/C 3XLNXupcrOEAlnwnta9H57CqHg4af7KTKI2528MQy5DVatJIUFfMXc7b9FuQOFxNsC H9Y8OwrchjB6u1Pgh78EJJv1Ah7nqLFS95ZU97DLXumnnhnYHOpGPoGX5nkipnVvug 54MT9ux04tPsqKeguOf2dn3CSUUtHJmMYp+xaECcqOPyz6On5AnSKYJjS7kJB5i4sG FgyFxdNoZexMA== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Liu Ying , Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , David Airlie , Daniel Vetter , =?UTF-8?q?Guido=20G=C3=BCnther?= , Robert Chiras , NXP Linux Team , Sasha Levin , dri-devel@lists.freedesktop.org Subject: [PATCH AUTOSEL 5.13 010/189] drm/bridge: nwl-dsi: Force a full modeset when crtc_state->active is changed to be true Date: Tue, 6 Jul 2021 07:11:10 -0400 Message-Id: <20210706111409.2058071-10-sashal@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210706111409.2058071-1-sashal@kernel.org> References: <20210706111409.2058071-1-sashal@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Liu Ying [ Upstream commit 3afb2a28fa2404d11cce1956a003f2aaca4da421 ] This patch replaces ->mode_fixup() with ->atomic_check() so that a full modeset can be requested from there when crtc_state->active is changed to be true(which implies only connector's DPMS is brought out of "Off" status, though not necessarily). Bridge functions are added or changed to accommodate the ->atomic_check() callback. That full modeset is needed by the up-coming patch which gets MIPI DSI controller and PHY ready in ->mode_set(), because it makes sure ->mode_set() and ->atomic_disable() are called in pairs. Cc: Andrzej Hajda Cc: Neil Armstrong Cc: Robert Foss Cc: Laurent Pinchart Cc: Jonas Karlman Cc: Jernej Skrabec Cc: David Airlie Cc: Daniel Vetter Cc: Guido Günther Cc: Robert Chiras Cc: NXP Linux Team Signed-off-by: Liu Ying Reviewed-by: Neil Armstrong Signed-off-by: Neil Armstrong Link: https://patchwork.freedesktop.org/patch/msgid/1619170003-4817-2-git-send-email-victor.liu@nxp.com Signed-off-by: Sasha Levin --- drivers/gpu/drm/bridge/nwl-dsi.c | 61 ++++++++++++++++++++------------ 1 file changed, 39 insertions(+), 22 deletions(-) diff --git a/drivers/gpu/drm/bridge/nwl-dsi.c b/drivers/gpu/drm/bridge/nwl-dsi.c index 66b67402f1ac..c65ca860712d 100644 --- a/drivers/gpu/drm/bridge/nwl-dsi.c +++ b/drivers/gpu/drm/bridge/nwl-dsi.c @@ -21,6 +21,7 @@ #include #include +#include #include #include #include @@ -742,7 +743,9 @@ static int nwl_dsi_disable(struct nwl_dsi *dsi) return 0; } -static void nwl_dsi_bridge_disable(struct drm_bridge *bridge) +static void +nwl_dsi_bridge_atomic_disable(struct drm_bridge *bridge, + struct drm_bridge_state *old_bridge_state) { struct nwl_dsi *dsi = bridge_to_dsi(bridge); int ret; @@ -803,17 +806,6 @@ static int nwl_dsi_get_dphy_params(struct nwl_dsi *dsi, return 0; } -static bool nwl_dsi_bridge_mode_fixup(struct drm_bridge *bridge, - const struct drm_display_mode *mode, - struct drm_display_mode *adjusted_mode) -{ - /* At least LCDIF + NWL needs active high sync */ - adjusted_mode->flags |= (DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC); - adjusted_mode->flags &= ~(DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC); - - return true; -} - static enum drm_mode_status nwl_dsi_bridge_mode_valid(struct drm_bridge *bridge, const struct drm_display_info *info, @@ -831,6 +823,24 @@ nwl_dsi_bridge_mode_valid(struct drm_bridge *bridge, return MODE_OK; } +static int nwl_dsi_bridge_atomic_check(struct drm_bridge *bridge, + struct drm_bridge_state *bridge_state, + struct drm_crtc_state *crtc_state, + struct drm_connector_state *conn_state) +{ + struct drm_display_mode *adjusted_mode = &crtc_state->adjusted_mode; + + /* At least LCDIF + NWL needs active high sync */ + adjusted_mode->flags |= (DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_PVSYNC); + adjusted_mode->flags &= ~(DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_NVSYNC); + + /* Do a full modeset if crtc_state->active is changed to be true. */ + if (crtc_state->active_changed && crtc_state->active) + crtc_state->mode_changed = true; + + return 0; +} + static void nwl_dsi_bridge_mode_set(struct drm_bridge *bridge, const struct drm_display_mode *mode, @@ -862,7 +872,9 @@ nwl_dsi_bridge_mode_set(struct drm_bridge *bridge, drm_mode_debug_printmodeline(adjusted_mode); } -static void nwl_dsi_bridge_pre_enable(struct drm_bridge *bridge) +static void +nwl_dsi_bridge_atomic_pre_enable(struct drm_bridge *bridge, + struct drm_bridge_state *old_bridge_state) { struct nwl_dsi *dsi = bridge_to_dsi(bridge); int ret; @@ -897,7 +909,9 @@ static void nwl_dsi_bridge_pre_enable(struct drm_bridge *bridge) } } -static void nwl_dsi_bridge_enable(struct drm_bridge *bridge) +static void +nwl_dsi_bridge_atomic_enable(struct drm_bridge *bridge, + struct drm_bridge_state *old_bridge_state) { struct nwl_dsi *dsi = bridge_to_dsi(bridge); int ret; @@ -942,14 +956,17 @@ static void nwl_dsi_bridge_detach(struct drm_bridge *bridge) } static const struct drm_bridge_funcs nwl_dsi_bridge_funcs = { - .pre_enable = nwl_dsi_bridge_pre_enable, - .enable = nwl_dsi_bridge_enable, - .disable = nwl_dsi_bridge_disable, - .mode_fixup = nwl_dsi_bridge_mode_fixup, - .mode_set = nwl_dsi_bridge_mode_set, - .mode_valid = nwl_dsi_bridge_mode_valid, - .attach = nwl_dsi_bridge_attach, - .detach = nwl_dsi_bridge_detach, + .atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state, + .atomic_destroy_state = drm_atomic_helper_bridge_destroy_state, + .atomic_reset = drm_atomic_helper_bridge_reset, + .atomic_check = nwl_dsi_bridge_atomic_check, + .atomic_pre_enable = nwl_dsi_bridge_atomic_pre_enable, + .atomic_enable = nwl_dsi_bridge_atomic_enable, + .atomic_disable = nwl_dsi_bridge_atomic_disable, + .mode_set = nwl_dsi_bridge_mode_set, + .mode_valid = nwl_dsi_bridge_mode_valid, + .attach = nwl_dsi_bridge_attach, + .detach = nwl_dsi_bridge_detach, }; static int nwl_dsi_parse_dt(struct nwl_dsi *dsi) -- 2.30.2