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 67A6CC6FD1A for ; Tue, 7 Mar 2023 17:30:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230118AbjCGRaI (ORCPT ); Tue, 7 Mar 2023 12:30:08 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60480 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229842AbjCGR3p (ORCPT ); Tue, 7 Mar 2023 12:29:45 -0500 Received: from dfw.source.kernel.org (dfw.source.kernel.org [139.178.84.217]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7CAC7A224B for ; Tue, 7 Mar 2023 09:24:53 -0800 (PST) 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 08B3F6150C for ; Tue, 7 Mar 2023 17:24:53 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 16684C433D2; Tue, 7 Mar 2023 17:24:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1678209892; bh=zjQJ37wesTy5MfybzEGPsH7AYE1h686Zma0+dUjBrFM=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Io+TVDebSa65x8SLtKIBmjTLPR66zWRc/YiwZ4w8uQxvDprRuinRya9p/eOxxrVak FPwBsFUzJV48lFfOpmai23zUa52DnAMQDbLfYUOMvLze7VPUvlX+2djuUl9IeJv4pd Kxwg8Ces/es7/ITyv1wwqwdnOClvne2gK8ThKnmI= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Neil Armstrong , Dmitry Baryshkov , Sasha Levin Subject: [PATCH 6.2 0366/1001] drm/bridge: lt9611: fix sleep mode setup Date: Tue, 7 Mar 2023 17:52:18 +0100 Message-Id: <20230307170037.265776876@linuxfoundation.org> X-Mailer: git-send-email 2.39.2 In-Reply-To: <20230307170022.094103862@linuxfoundation.org> References: <20230307170022.094103862@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: Dmitry Baryshkov [ Upstream commit ae2d329f104b75a0a78dcaded29fe6283289cdf9 ] On atomic_post_disable the bridge goes to the low power state. However the code disables too much of the chip, so the HPD event is not being detected and delivered to the host. Reduce the power saving in order to get the HPD event. Fixes: 23278bf54afe ("drm/bridge: Introduce LT9611 DSI to HDMI bridge") Reviewed-by: Neil Armstrong Signed-off-by: Dmitry Baryshkov Signed-off-by: Neil Armstrong Link: https://patchwork.freedesktop.org/patch/msgid/20230118081658.2198520-2-dmitry.baryshkov@linaro.org Signed-off-by: Sasha Levin --- drivers/gpu/drm/bridge/lontium-lt9611.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/drm/bridge/lontium-lt9611.c b/drivers/gpu/drm/bridge/lontium-lt9611.c index 7c0a99173b39f..2714184cc53f4 100644 --- a/drivers/gpu/drm/bridge/lontium-lt9611.c +++ b/drivers/gpu/drm/bridge/lontium-lt9611.c @@ -448,12 +448,11 @@ static void lt9611_sleep_setup(struct lt9611 *lt9611) { 0x8023, 0x01 }, { 0x8157, 0x03 }, /* set addr pin as output */ { 0x8149, 0x0b }, - { 0x8151, 0x30 }, /* disable IRQ */ + { 0x8102, 0x48 }, /* MIPI Rx power down */ { 0x8123, 0x80 }, { 0x8130, 0x00 }, - { 0x8100, 0x01 }, /* bandgap power down */ - { 0x8101, 0x00 }, /* system clk power down */ + { 0x8011, 0x0a }, }; regmap_multi_reg_write(lt9611->regmap, -- 2.39.2