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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id E8841C0015E for ; Fri, 21 Jul 2023 18:57:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231391AbjGUS5f (ORCPT ); Fri, 21 Jul 2023 14:57:35 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51010 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231268AbjGUS5e (ORCPT ); Fri, 21 Jul 2023 14:57:34 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E2CD53C29 for ; Fri, 21 Jul 2023 11:57:17 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id E2EB961D7C for ; Fri, 21 Jul 2023 18:57:16 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id EFF2BC433C8; Fri, 21 Jul 2023 18:57:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1689965836; bh=82YgLRHTFuBKNbkIY4eunt2GzGRgyFrMHQKlcuEC2d8=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=X9Rg1w+1DT9TdO/qUGvOKLj2M6uw7Dcou7cpSDZxna8bb1XmdXJcJlV6UDcV/Vxna PbdokEz4GDHskWN4c92pMqMNL1N+Knq8qo7iyTHwET/XFlWm0VDQiwsqdWpzv/eh0A D8aYyxXhhsV/S4VGu2+hFNO8thMJabqtbKlYCfb8= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Francesco Dolcini , Robert Foss , Sasha Levin Subject: [PATCH 5.15 103/532] drm/bridge: tc358768: Add atomic_get_input_bus_fmts() implementation Date: Fri, 21 Jul 2023 18:00:07 +0200 Message-ID: <20230721160620.160572335@linuxfoundation.org> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20230721160614.695323302@linuxfoundation.org> References: <20230721160614.695323302@linuxfoundation.org> User-Agent: quilt/0.67 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org From: Francesco Dolcini [ Upstream commit cec5ccef85bd0128cf895612de54a9d21d2015d0 ] Add atomic_get_input_bus_fmts() implementation, tc358768 has a parallel RGB input interface with the actual bus format depending on the amount of parallel input data lines. Without this change when the tc358768 is used with less than 24bit the color mapping is completely wrong. Signed-off-by: Francesco Dolcini Reviewed-by: Robert Foss Signed-off-by: Robert Foss Link: https://patchwork.freedesktop.org/patch/msgid/20230330095941.428122-7-francesco@dolcini.it Stable-dep-of: ee18698e212b ("drm/bridge: tc358768: fix TCLK_TRAILCNT computation") Signed-off-by: Sasha Levin --- drivers/gpu/drm/bridge/tc358768.c | 44 +++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) diff --git a/drivers/gpu/drm/bridge/tc358768.c b/drivers/gpu/drm/bridge/tc358768.c index fa06c06e41ebe..6e95dd4b7aef7 100644 --- a/drivers/gpu/drm/bridge/tc358768.c +++ b/drivers/gpu/drm/bridge/tc358768.c @@ -9,6 +9,7 @@ #include #include #include +#include #include #include #include @@ -871,6 +872,44 @@ static void tc358768_bridge_enable(struct drm_bridge *bridge) } } +#define MAX_INPUT_SEL_FORMATS 1 + +static u32 * +tc358768_atomic_get_input_bus_fmts(struct drm_bridge *bridge, + struct drm_bridge_state *bridge_state, + struct drm_crtc_state *crtc_state, + struct drm_connector_state *conn_state, + u32 output_fmt, + unsigned int *num_input_fmts) +{ + struct tc358768_priv *priv = bridge_to_tc358768(bridge); + u32 *input_fmts; + + *num_input_fmts = 0; + + input_fmts = kcalloc(MAX_INPUT_SEL_FORMATS, sizeof(*input_fmts), + GFP_KERNEL); + if (!input_fmts) + return NULL; + + switch (priv->pd_lines) { + case 16: + input_fmts[0] = MEDIA_BUS_FMT_RGB565_1X16; + break; + case 18: + input_fmts[0] = MEDIA_BUS_FMT_RGB666_1X18; + break; + default: + case 24: + input_fmts[0] = MEDIA_BUS_FMT_RGB888_1X24; + break; + }; + + *num_input_fmts = MAX_INPUT_SEL_FORMATS; + + return input_fmts; +} + static const struct drm_bridge_funcs tc358768_bridge_funcs = { .attach = tc358768_bridge_attach, .mode_valid = tc358768_bridge_mode_valid, @@ -878,6 +917,11 @@ static const struct drm_bridge_funcs tc358768_bridge_funcs = { .enable = tc358768_bridge_enable, .disable = tc358768_bridge_disable, .post_disable = tc358768_bridge_post_disable, + + .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_get_input_bus_fmts = tc358768_atomic_get_input_bus_fmts, }; static const struct drm_bridge_timings default_tc358768_timings = { -- 2.39.2