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 03E0A1E6202; Sun, 24 Mar 2024 22:53:58 +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=1711320839; cv=none; b=GkHtD0YLA2ZiZGlyxkdrAsA4lCtpnDTie0LQ3xn8xr8AhMsQVwygMV4Xa+oQ903bYUm0c+70scRdfvB5a88WCn4A4nqG6hBG8HSRC2aqdd7fIfnpMaty5+2XZ3W6DCWF8akOzuWaUHDZdcOKJ1+f2HIeqqXImKtCBdyTIUyRW+w= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1711320839; c=relaxed/simple; bh=O945Y65RtR8IS6CkelHaCAjziwhmZ9c1i9x5V/q+Yf4=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=XmZsa1Fvt42xtgvoud/0+0hfqrnJFm2vJFgOkj5OfRHJMzk2/jkhrQXVXTGXqWLdmwnQCF8Q5zcUFY7NzZemtAa9nuKa5ofB43rpaimycREFAAuHQ/Kymg1mqUjGpfyBP//2BGpUctQ4LHiikl+MtotfwObWJSccYMosBb/sGRI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=lw2LP5oU; 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="lw2LP5oU" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 42351C43399; Sun, 24 Mar 2024 22:53:57 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1711320837; bh=O945Y65RtR8IS6CkelHaCAjziwhmZ9c1i9x5V/q+Yf4=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=lw2LP5oUACyVvilbBXRuQkB0Xk4dQodpsSv84uUe9IHFJSHoCt+kEJYhqI5s6xEYn 88tNcq2AO6SCQ83zUGQiRVm4t/UM3F4CZO4xDez1MX8S3B+hGJ61dQnz6EewaP+TXI /Ac48PJ+SWiUSc5I36LDZuXN0o5loHRp7xyX/Yie5gx0aoGsRkh3AP3TuAF0Z50/M9 gf9ZgaVJ0V6ArIzcMc8UYihdrhVAXFqkuC96lR3a9YMpukkTRGj5P2l5KulOSAS/ul 0BWARI9zkZn2eUIgVx26DIYLeDXpuEsrX7OQfY/M6TQgFyB2a2FrVWLj9UIQI2/jQj CHLJNZ9EYgbxw== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Hsin-Yi Wang , Douglas Anderson , Sasha Levin Subject: [PATCH 6.7 403/713] drm/panel-edp: use put_sync in unprepare Date: Sun, 24 Mar 2024 18:42:09 -0400 Message-ID: <20240324224720.1345309-404-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240324224720.1345309-1-sashal@kernel.org> References: <20240324224720.1345309-1-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