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 C405C20C031; Sun, 24 Mar 2024 23:07:06 +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=1711321627; cv=none; b=qV0QGHD7YWVAjdKnFjlwx3prCz1nbpXJsxmpkts6lUv9JqWugb2y7DlWelGcoYUUuspWpUXujOsQ3m8LuOPezB4VIiaJ9W1o4SvcosriGPaC5y3Eca5xlGnxw7c7oG6eCjEEdMxlKVdOW7xMOk7dA54qB6vy/y1yRxLCLvsgZK0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711321627; c=relaxed/simple; bh=O945Y65RtR8IS6CkelHaCAjziwhmZ9c1i9x5V/q+Yf4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=uDUx73LjB2wLmElmjfzn2YoMxePkLxrya4XhpwKxzFj8n4uPY3E7GxkfAGdoSLYNGyKFlNzNXFsokSCOTDtIVm7XKKRtxEfcE9AuXKD0JF/aiC4t+8KmSioiLoW8ZGHus8Y0vSCIe9oVaY9HoP6xVV8FnvCv2z6BMt/GnpYyfLg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=gaZIOW0F; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="gaZIOW0F" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 1111CC433F1; Sun, 24 Mar 2024 23:07:05 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1711321626; bh=O945Y65RtR8IS6CkelHaCAjziwhmZ9c1i9x5V/q+Yf4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=gaZIOW0FJc/oNrfCqK0ldN3RiJGXmvNCMYimad5ltKqKbYoYrbAepg7L+wJGVNEkQ y5pUZ80DTtIkmzz52RX28PbiA0dSWjN/nEPf5T2wcQnYmNb0GTKTsjN8nKJUrHtfON AtKumhYGD0VAB802qGp8nvsiEcL4UmggfX78cp0JIIvL4u7zqF+hozE3SKLSWbt/z2 OpuDsgwoNe1wiaawDeWDnH6txOG5Jj9+dXSrG6ktWxkokmutcwO3QUD4SFZXabAC8i ZfStxXVjGHSDs5dHRbV3QKywJDW510YXb00TL+Kn5Ji4Gt5iC7VpN1gqmWgLvNUH9E qSQYDY2befhkw== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Hsin-Yi Wang , Douglas Anderson , Sasha Levin Subject: [PATCH 6.6 357/638] drm/panel-edp: use put_sync in unprepare Date: Sun, 24 Mar 2024 18:56:34 -0400 Message-ID: <20240324230116.1348576-358-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240324230116.1348576-1-sashal@kernel.org> References: <20240324230116.1348576-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit From: Hsin-Yi Wang [ Upstream commit 49ddab089611ae5ddd0201ddbbf633da75bfcc25 ] Some edp panel requires T10 (Delay from end of valid video data transmitted by the Source device to power-off) less than 500ms. Using autosuspend with delay set as 1000 violates this requirement. Use put_sync_suspend in unprepare to meet the spec. For other cases (such as getting EDID), it still uses autosuspend. Suggested-by: Douglas Anderson Fixes: 3235b0f20a0a ("drm/panel: panel-simple: Use runtime pm to avoid excessive unprepare / prepare") Signed-off-by: Hsin-Yi Wang Reviewed-by: Douglas Anderson Signed-off-by: Douglas Anderson Link: https://patchwork.freedesktop.org/patch/msgid/20231220221418.2610185-1-hsinyi@chromium.org Signed-off-by: Sasha Levin --- drivers/gpu/drm/panel/panel-edp.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/gpu/drm/panel/panel-edp.c b/drivers/gpu/drm/panel/panel-edp.c index cba5a93e60822..70feee7876114 100644 --- a/drivers/gpu/drm/panel/panel-edp.c +++ b/drivers/gpu/drm/panel/panel-edp.c @@ -413,8 +413,7 @@ static int panel_edp_unprepare(struct drm_panel *panel) if (!p->prepared) return 0; - pm_runtime_mark_last_busy(panel->dev); - ret = pm_runtime_put_autosuspend(panel->dev); + ret = pm_runtime_put_sync_suspend(panel->dev); if (ret < 0) return ret; p->prepared = false; -- 2.43.0