From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 99F71243376; Wed, 25 Feb 2026 01:31:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771983114; cv=none; b=HLfQ3qj8GVdqLR+FWSsRbAIyu1zGg2El6ZKcWu37E0WTdN1MGrq8YpwoCU1QcmPgJHN2vhOWTvI7gxyC0nwkv4cEu6JQVtQoR5krfIzEevRO+AT7qcymxNHspC0bne8t2R6iCUq6lyV0gjrPl3svuRLlxIpYKBy1WYrG9NgJ1wU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771983114; c=relaxed/simple; bh=om+0vS2UhU1lqMCdzQZQ6ZIWITVV1Bhm/xaNnOk7x4Y=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=fxZ9JfkYFfhik5FW92urVafuO86hilphwzbQ0jMvTIgf6tDm0pM77mLf2E9rP8rzAiDoEwLNBMRYLtUboiR0mr42EPMFraLkT4NDh46BFHhC/LGQJuWljG+FZZQ3qMzrw3CtiPfY7xNpWXwnwUwb+Qg12Il/msxEX48unEW5jq4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=vHlWNW0l; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="vHlWNW0l" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 44774C116D0; Wed, 25 Feb 2026 01:31:54 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1771983114; bh=om+0vS2UhU1lqMCdzQZQ6ZIWITVV1Bhm/xaNnOk7x4Y=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=vHlWNW0lWSYxn1IvZ0nqKZBdZK8ESJuFbjdSuTNVvonYRrzvmkvxjqK0fXwgRktFQ TEpsDasT4hmwhT/MZbJWHrQVjgXcZhogPm+e96VmpCNsPZk/4v4FplL/+Q+rfGDfae eg+kxjqcgsVv699gu3lOJ5BoLbpXPe5iHExj2b7k= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Baihan Li , Yongbang Shi , Dmitry Baryshkov , Tao Tian , Sasha Levin Subject: [PATCH 6.19 274/781] drm/hisilicon/hibmc: Adding reset colorbar cfg in dp init. Date: Tue, 24 Feb 2026 17:16:23 -0800 Message-ID: <20260225012406.418151953@linuxfoundation.org> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260225012359.695468795@linuxfoundation.org> References: <20260225012359.695468795@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.19-stable review patch. If anyone has any objections, please let me know. ------------------ From: Baihan Li [ Upstream commit 6dad7fa8581e96321ec8a6a4f8160762466f539a ] Add colorbar disable operation before reset chontroller, to make sure colorbar status is clear in the DP init, so if rmmod the driver and the previous colorbar configuration will not affect the next time insmod the driver. Fixes: 3c7623fb5bb6 ("drm/hisilicon/hibmc: Enable this hot plug detect of irq feature") Signed-off-by: Baihan Li Signed-off-by: Yongbang Shi Reviewed-by: Dmitry Baryshkov Reviewed-by: Tao Tian Link: https://patch.msgid.link/20251210023759.3944834-5-shiyongbang@huawei.com Signed-off-by: Dmitry Baryshkov Signed-off-by: Sasha Levin --- drivers/gpu/drm/hisilicon/hibmc/dp/dp_hw.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/hisilicon/hibmc/dp/dp_hw.c b/drivers/gpu/drm/hisilicon/hibmc/dp/dp_hw.c index 8f8ca940b6b26..d5bd3c45649b2 100644 --- a/drivers/gpu/drm/hisilicon/hibmc/dp/dp_hw.c +++ b/drivers/gpu/drm/hisilicon/hibmc/dp/dp_hw.c @@ -180,6 +180,8 @@ int hibmc_dp_hw_init(struct hibmc_dp *dp) /* int init */ writel(0, dp_dev->base + HIBMC_DP_INTR_ENABLE); writel(HIBMC_DP_INT_RST, dp_dev->base + HIBMC_DP_INTR_ORIGINAL_STATUS); + /* clr colorbar */ + writel(0, dp_dev->base + HIBMC_DP_COLOR_BAR_CTRL); /* rst */ writel(0, dp_dev->base + HIBMC_DP_DPTX_RST_CTRL); usleep_range(30, 50); -- 2.51.0