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Wed, 02 Mar 2022 23:52:21 -0800 (PST) MIME-Version: 1.0 References: <20220302120925.4153592-1-xji@analogixsemi.com> In-Reply-To: <20220302120925.4153592-1-xji@analogixsemi.com> From: Pin-yen Lin Date: Thu, 3 Mar 2022 15:52:10 +0800 Message-ID: Subject: Re: drm/bridge: anx7625: Set downstream sink into normal status To: Xin Ji Cc: Andrzej Hajda , Neil Armstrong , Robert Foss , Laurent Pinchart , Jonas Karlman , Jernej Skrabec , David Airlie , Daniel Vetter , treapking@google.com, qwen@analogixsemi.com, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, hsinyi@chromium.org, bliang@analogixsemi.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Reviewed-by: Pin-Yen Lin On Wed, Mar 2, 2022 at 8:09 PM Xin Ji wrote: > > As downstream sink was set into standby mode while bridge disabled, > this patch used for setting downstream sink into normal status > while enable bridge. > > Signed-off-by: Xin Ji > --- > drivers/gpu/drm/bridge/analogix/anx7625.c | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c b/drivers/gpu/drm/bridge/analogix/anx7625.c > index 9aab879a8851..963eaf73ecab 100644 > --- a/drivers/gpu/drm/bridge/analogix/anx7625.c > +++ b/drivers/gpu/drm/bridge/analogix/anx7625.c > @@ -919,12 +919,20 @@ static void anx7625_dp_start(struct anx7625_data *ctx) > { > int ret; > struct device *dev = &ctx->client->dev; > + u8 data; > > if (!ctx->display_timing_valid) { > DRM_DEV_ERROR(dev, "mipi not set display timing yet.\n"); > return; > } > > + dev_info(dev, "set downstream sink into normal\n"); > + /* Downstream sink enter into normal mode */ > + data = 1; > + ret = anx7625_aux_trans(ctx, DP_AUX_NATIVE_WRITE, 0x000600, 1, &data); > + if (ret < 0) > + dev_err(dev, "IO error : set sink into normal mode fail\n"); > + > /* Disable HDCP */ > anx7625_write_and(ctx, ctx->i2c.rx_p1_client, 0xee, 0x9f); > 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 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 E6BC0C433F5 for ; Thu, 3 Mar 2022 07:52:24 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 4A06110EE84; 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Wed, 02 Mar 2022 23:52:21 -0800 (PST) MIME-Version: 1.0 References: <20220302120925.4153592-1-xji@analogixsemi.com> In-Reply-To: <20220302120925.4153592-1-xji@analogixsemi.com> From: Pin-yen Lin Date: Thu, 3 Mar 2022 15:52:10 +0800 Message-ID: Subject: Re: drm/bridge: anx7625: Set downstream sink into normal status To: Xin Ji Content-Type: text/plain; charset="UTF-8" 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, Jonas Karlman , David Airlie , Robert Foss , qwen@analogixsemi.com, Neil Armstrong , linux-kernel@vger.kernel.org, Jernej Skrabec , Laurent Pinchart , Andrzej Hajda , hsinyi@chromium.org, bliang@analogixsemi.com, treapking@google.com Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" Reviewed-by: Pin-Yen Lin On Wed, Mar 2, 2022 at 8:09 PM Xin Ji wrote: > > As downstream sink was set into standby mode while bridge disabled, > this patch used for setting downstream sink into normal status > while enable bridge. > > Signed-off-by: Xin Ji > --- > drivers/gpu/drm/bridge/analogix/anx7625.c | 8 ++++++++ > 1 file changed, 8 insertions(+) > > diff --git a/drivers/gpu/drm/bridge/analogix/anx7625.c b/drivers/gpu/drm/bridge/analogix/anx7625.c > index 9aab879a8851..963eaf73ecab 100644 > --- a/drivers/gpu/drm/bridge/analogix/anx7625.c > +++ b/drivers/gpu/drm/bridge/analogix/anx7625.c > @@ -919,12 +919,20 @@ static void anx7625_dp_start(struct anx7625_data *ctx) > { > int ret; > struct device *dev = &ctx->client->dev; > + u8 data; > > if (!ctx->display_timing_valid) { > DRM_DEV_ERROR(dev, "mipi not set display timing yet.\n"); > return; > } > > + dev_info(dev, "set downstream sink into normal\n"); > + /* Downstream sink enter into normal mode */ > + data = 1; > + ret = anx7625_aux_trans(ctx, DP_AUX_NATIVE_WRITE, 0x000600, 1, &data); > + if (ret < 0) > + dev_err(dev, "IO error : set sink into normal mode fail\n"); > + > /* Disable HDCP */ > anx7625_write_and(ctx, ctx->i2c.rx_p1_client, 0xee, 0x9f); >