From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 5525C3BD63B; Tue, 21 Jul 2026 22:05:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784671520; cv=none; b=Zi8HikqrBiuQnme+z9UpqsBeo6WMWdNqohb2p4SQ9l5CUJZdnNrLt6taX/R4JpyVORpkgANwTAWTyT3OYMp5jr7mvVJMzgXZiN/H0azRfRXNGbf7HPLc/X/fdl+Asng/lw0rd+h5hsnn81rO4mwLE/qC2dJM0d+AVNE6oObX474= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784671520; c=relaxed/simple; bh=HQ+tGHHH22guOxz8b1d6/cdWknFI437RD/Ni8uQc2pc=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=dziMjx7GciR8CkDpEZTPxBe1EZFoWlRsFMaULlnqjo3X/JciSSbm4bGTTatepiVk6ubjG1DifthIsqVfCWpLQPlGr9l5OnDEniViLXJ7KpAmn2R9sUYjkK9kromynvmXZGpZ2F5V4NhafrQC2F5dU/N7pdZMFHXVWsrzwltXTB4= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=BwysRV+A; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="BwysRV+A" Received: by smtp.kernel.org (Postfix) with ESMTPSA id C1B561F000E9; Tue, 21 Jul 2026 22:05:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1784671519; bh=UeuziTShJdc+mpCen8NW/ktKyjM7V4Pfj/4HOZ6V7Bg=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=BwysRV+A/+mHcMWvVwG0OEbY2UCWtJFnsF4vdtDaqym7N7tOhBHMGcAOfe/FDMhqQ GIbRjWrTluo7EjS7juZpbznvuJah7hpYvR6k16La0vU9go4hK7551rw5qNUVqhSetF acCH2p6htCtIXuEO95Oz+lzCl/vWXKRvc6kYz0dg= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Jessica Zhang , Konrad Dybcio , Dmitry Baryshkov , Sasha Levin , Val Packett , Yongxing Mou Subject: [PATCH 5.15 278/843] drm/msm/dp: fix HPD state status bit shift value Date: Tue, 21 Jul 2026 17:18:33 +0200 Message-ID: <20260721152412.279577153@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260721152405.946368001@linuxfoundation.org> References: <20260721152405.946368001@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 5.15-stable review patch. If anyone has any objections, please let me know. ------------------ From: Jessica Zhang [ Upstream commit 2e6c2e81d81251623c458a60e2a57447dcbc988e ] The HPD state status is the 3 most significant bits, not 4 bits of the HPD_INT_STATUS register. Fix the bit shift macro so that the correct bits are returned in msm_dp_aux_is_link_connected(). Fixes: 19e52bcb27c2 ("drm/msm/dp: return correct connection status after suspend") Signed-off-by: Jessica Zhang Reviewed-by: Konrad Dybcio Tested-by: Val Packett # x1e80100-dell-latitude-7455 Tested-by: Yongxing Mou # Hamoa IOT EVK, QCS8300 Ride Signed-off-by: Dmitry Baryshkov Patchwork: https://patchwork.freedesktop.org/patch/727611/ Link: https://lore.kernel.org/r/20260524-hpd-refactor-v6-1-cf3ab488dd7b@oss.qualcomm.com Signed-off-by: Sasha Levin --- drivers/gpu/drm/msm/dp/dp_reg.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/msm/dp/dp_reg.h b/drivers/gpu/drm/msm/dp/dp_reg.h index 176a503ece9c04..92c69864ad7228 100644 --- a/drivers/gpu/drm/msm/dp/dp_reg.h +++ b/drivers/gpu/drm/msm/dp/dp_reg.h @@ -32,8 +32,8 @@ #define DP_DP_IRQ_HPD_INT_ACK (0x00000002) #define DP_DP_HPD_REPLUG_INT_ACK (0x00000004) #define DP_DP_HPD_UNPLUG_INT_ACK (0x00000008) -#define DP_DP_HPD_STATE_STATUS_BITS_MASK (0x0000000F) -#define DP_DP_HPD_STATE_STATUS_BITS_SHIFT (0x1C) +#define DP_DP_HPD_STATE_STATUS_BITS_MASK (0x00000007) +#define DP_DP_HPD_STATE_STATUS_BITS_SHIFT (0x1D) #define REG_DP_DP_HPD_INT_MASK (0x0000000C) #define DP_DP_HPD_PLUG_INT_MASK (0x00000001) -- 2.53.0