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Received: from localhost ([::1] helo=merlin.infradead.org) by merlin.infradead.org with esmtp (Exim 4.92.3 #3 (Red Hat Linux)) id 1k7h42-00062u-5j; Mon, 17 Aug 2020 15:28:46 +0000 Received: from mail.kernel.org ([198.145.29.99]) by merlin.infradead.org with esmtps (Exim 4.92.3 #3 (Red Hat Linux)) id 1k7h3z-00061x-5J for linux-arm-kernel@lists.infradead.org; Mon, 17 Aug 2020 15:28:44 +0000 Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id A2CAF233CF; Mon, 17 Aug 2020 15:28:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597678121; bh=JrYOhwWwwmrReXwB+ZeyDYHuIP3lqKqROWwbKCFhgOs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=G6G3hS/yzj9jpcf5dQnbsJCcgsOFcPTAKvn9t6vVbOxL9oY8AaZDL2FggLJ+23P40 EmKaP7k/Y5gmHdGp8YTxNEC6vovO7qKwptBm4pE5YsLXUZq4egncZxsa3F0T+QPVF8 Se4r3NFyr7Wgrqto3OlFxNT8e6kne4KoPcqjBeSs= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org Subject: [PATCH 5.8 218/464] drm/stm: repair runtime power management Date: Mon, 17 Aug 2020 17:12:51 +0200 Message-Id: <20200817143844.245721026@linuxfoundation.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200817143833.737102804@linuxfoundation.org> References: <20200817143833.737102804@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200817_112843_602434_33FB3E96 X-CRM114-Status: GOOD ( 15.16 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Marek Vasut , Sasha Levin , Maxime Coquelin , Greg Kroah-Hartman , Philippe Cornu , stable@vger.kernel.org, =?UTF-8?q?Yannick=20Fertr=C3=A9?= , Benjamin Gaignard , Benjamin Gaignard , Vincent Abriou , linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, Alexandre Torgue Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org RnJvbTogTWFyZWsgVmFzdXQgPG1hcmV4QGRlbnguZGU+CgpbIFVwc3RyZWFtIGNvbW1pdCBlYmQy NjdiMmUzYzI1ZDVmOTNhMDg1MjhiNDdjMDM2NTY5ZWI4NzQ0IF0KCkFkZCBtaXNzaW5nIHBtX3J1 bnRpbWVfZ2V0X3N5bmMoKSBpbnRvIGx0ZGNfY3J0Y19hdG9taWNfZW5hYmxlKCkgdG8KbWF0Y2gg cG1fcnVudGltZV9wdXRfc3luYygpIGluIGx0ZGNfY3J0Y19hdG9taWNfZGlzYWJsZSgpLCBvdGhl cndpc2UKdGhlIExUREMgbWlnaHQgc3VzcGVuZCB2aWEgcnVudGltZSBQTSwgZGlzYWJsZSBjbG9j aywgYW5kIHRoZW4gZmFpbAp0byByZXN1bWUgbGF0ZXIgb24uCgpUaGUgdGVzdCB3aGljaCB0cmln Z2VycyBpdCBpcyByb3VnaGx5IC0tIHJ1biBxdDUgYXBwbGljYXRpb24gd2hpY2gKdXNlcyBlZ2xm cyBwbGF0Zm9ybSBhbmQgZXRuYXZpdiwgc3RvcCB0aGUgYXBwbGljYXRpb24sIHNsZWVwIGZvciAx NQptaW51dGVzLCBydW4gdGhlIGFwcGxpY2F0aW9uIGFnYWluLiBUaGlzIGxlYWRzIHRvIGEgdGlt ZW91dCB3YWl0aW5nCmZvciB2c3luYywgYmVjYXVzZSB0aGUgTFREQyBoYXMgc3VzcGVuZGVkLCBi dXQgZGlkIG5vdCByZXN1bWUuCgpGaXhlczogMzVhYjZjZmJmMjExICgiZHJtL3N0bTogc3VwcG9y dCBydW50aW1lIHBvd2VyIG1hbmFnZW1lbnQiKQpTaWduZWQtb2ZmLWJ5OiBNYXJlayBWYXN1dCA8 bWFyZXhAZGVueC5kZT4KQ2M6IFlhbm5pY2sgRmVydHLDqSA8eWFubmljay5mZXJ0cmVAc3QuY29t PgpDYzogUGhpbGlwcGUgQ29ybnUgPHBoaWxpcHBlLmNvcm51QHN0LmNvbT4KQ2M6IEJlbmphbWlu IEdhaWduYXJkIDxiZW5qYW1pbi5nYWlnbmFyZEBsaW5hcm8ub3JnPgpDYzogVmluY2VudCBBYnJp b3UgPHZpbmNlbnQuYWJyaW91QHN0LmNvbT4KQ2M6IE1heGltZSBDb3F1ZWxpbiA8bWNvcXVlbGlu LnN0bTMyQGdtYWlsLmNvbT4KQ2M6IEFsZXhhbmRyZSBUb3JndWUgPGFsZXhhbmRyZS50b3JndWVA c3QuY29tPgpUbzogZHJpLWRldmVsQGxpc3RzLmZyZWVkZXNrdG9wLm9yZwpDYzogbGludXgtc3Rt MzJAc3QtbWQtbWFpbG1hbi5zdG9ybXJlcGx5LmNvbQpDYzogbGludXgtYXJtLWtlcm5lbEBsaXN0 cy5pbmZyYWRlYWQub3JnCkFja2VkLWJ5OiBQaGlsaXBwZSBDb3JudSA8cGhpbGlwcGUuY29ybnVA c3QuY29tPgpUZXN0ZWQtYnk6IFlhbm5pY2sgRmVydHJlIDx5YW5uaWNrLmZlcnRyZUBzdC5jb20+ ClNpZ25lZC1vZmYtYnk6IEJlbmphbWluIEdhaWduYXJkIDxiZW5qYW1pbi5nYWlnbmFyZEBzdC5j b20+Ckxpbms6IGh0dHBzOi8vcGF0Y2h3b3JrLmZyZWVkZXNrdG9wLm9yZy9wYXRjaC9tc2dpZC8y MDIwMDIyOTIyMTY0OS45MDgxMy0xLW1hcmV4QGRlbnguZGUKU2lnbmVkLW9mZi1ieTogU2FzaGEg TGV2aW4gPHNhc2hhbEBrZXJuZWwub3JnPgotLS0KIGRyaXZlcnMvZ3B1L2RybS9zdG0vbHRkYy5j IHwgMyArKysKIDEgZmlsZSBjaGFuZ2VkLCAzIGluc2VydGlvbnMoKykKCmRpZmYgLS1naXQgYS9k cml2ZXJzL2dwdS9kcm0vc3RtL2x0ZGMuYyBiL2RyaXZlcnMvZ3B1L2RybS9zdG0vbHRkYy5jCmlu ZGV4IGY4OTQ5NjhkNmU0NTIuLjNmNTkwZDkxNmU5MTYgMTAwNjQ0Ci0tLSBhL2RyaXZlcnMvZ3B1 L2RybS9zdG0vbHRkYy5jCisrKyBiL2RyaXZlcnMvZ3B1L2RybS9zdG0vbHRkYy5jCkBAIC00MjMs OSArNDIzLDEyIEBAIHN0YXRpYyB2b2lkIGx0ZGNfY3J0Y19hdG9taWNfZW5hYmxlKHN0cnVjdCBk cm1fY3J0YyAqY3J0YywKIAkJCQkgICAgc3RydWN0IGRybV9jcnRjX3N0YXRlICpvbGRfc3RhdGUp CiB7CiAJc3RydWN0IGx0ZGNfZGV2aWNlICpsZGV2ID0gY3J0Y190b19sdGRjKGNydGMpOworCXN0 cnVjdCBkcm1fZGV2aWNlICpkZGV2ID0gY3J0Yy0+ZGV2OwogCiAJRFJNX0RFQlVHX0RSSVZFUigi XG4iKTsKIAorCXBtX3J1bnRpbWVfZ2V0X3N5bmMoZGRldi0+ZGV2KTsKKwogCS8qIFNldHMgdGhl IGJhY2tncm91bmQgY29sb3IgdmFsdWUgKi8KIAlyZWdfd3JpdGUobGRldi0+cmVncywgTFREQ19C Q0NSLCBCQ0NSX0JDQkxBQ0spOwogCi0tIAoyLjI1LjEKCgoKCl9fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fX19fX19fX19fX19fX19fCmxpbnV4LWFybS1rZXJuZWwgbWFpbGluZyBsaXN0 CmxpbnV4LWFybS1rZXJuZWxAbGlzdHMuaW5mcmFkZWFkLm9yZwpodHRwOi8vbGlzdHMuaW5mcmFk ZWFkLm9yZy9tYWlsbWFuL2xpc3RpbmZvL2xpbnV4LWFybS1rZXJuZWwK 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 X-Spam-Level: X-Spam-Status: No, score=-12.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI, SIGNED_OFF_BY,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id EDEABC433DF for ; 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Mon, 17 Aug 2020 15:28:41 +0000 (UTC) Received: from localhost (83-86-89-107.cable.dynamic.v4.ziggo.nl [83.86.89.107]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id A2CAF233CF; Mon, 17 Aug 2020 15:28:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597678121; bh=JrYOhwWwwmrReXwB+ZeyDYHuIP3lqKqROWwbKCFhgOs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=G6G3hS/yzj9jpcf5dQnbsJCcgsOFcPTAKvn9t6vVbOxL9oY8AaZDL2FggLJ+23P40 EmKaP7k/Y5gmHdGp8YTxNEC6vovO7qKwptBm4pE5YsLXUZq4egncZxsa3F0T+QPVF8 Se4r3NFyr7Wgrqto3OlFxNT8e6kne4KoPcqjBeSs= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org Subject: [PATCH 5.8 218/464] drm/stm: repair runtime power management Date: Mon, 17 Aug 2020 17:12:51 +0200 Message-Id: <20200817143844.245721026@linuxfoundation.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200817143833.737102804@linuxfoundation.org> References: <20200817143833.737102804@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 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: Marek Vasut , Sasha Levin , Maxime Coquelin , Greg Kroah-Hartman , Philippe Cornu , stable@vger.kernel.org, =?UTF-8?q?Yannick=20Fertr=C3=A9?= , Benjamin Gaignard , Vincent Abriou , linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, Alexandre Torgue Content-Type: text/plain; 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Mon, 17 Aug 2020 15:28:40 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1597678121; bh=JrYOhwWwwmrReXwB+ZeyDYHuIP3lqKqROWwbKCFhgOs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=G6G3hS/yzj9jpcf5dQnbsJCcgsOFcPTAKvn9t6vVbOxL9oY8AaZDL2FggLJ+23P40 EmKaP7k/Y5gmHdGp8YTxNEC6vovO7qKwptBm4pE5YsLXUZq4egncZxsa3F0T+QPVF8 Se4r3NFyr7Wgrqto3OlFxNT8e6kne4KoPcqjBeSs= From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Marek Vasut , =?UTF-8?q?Yannick=20Fertr=C3=A9?= , Philippe Cornu , Benjamin Gaignard , Vincent Abriou , Maxime Coquelin , Alexandre Torgue , linux-stm32@st-md-mailman.stormreply.com, linux-arm-kernel@lists.infradead.org, Benjamin Gaignard , Sasha Levin Subject: [PATCH 5.8 218/464] drm/stm: repair runtime power management Date: Mon, 17 Aug 2020 17:12:51 +0200 Message-Id: <20200817143844.245721026@linuxfoundation.org> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20200817143833.737102804@linuxfoundation.org> References: <20200817143833.737102804@linuxfoundation.org> User-Agent: quilt/0.66 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Marek Vasut [ Upstream commit ebd267b2e3c25d5f93a08528b47c036569eb8744 ] Add missing pm_runtime_get_sync() into ltdc_crtc_atomic_enable() to match pm_runtime_put_sync() in ltdc_crtc_atomic_disable(), otherwise the LTDC might suspend via runtime PM, disable clock, and then fail to resume later on. The test which triggers it is roughly -- run qt5 application which uses eglfs platform and etnaviv, stop the application, sleep for 15 minutes, run the application again. This leads to a timeout waiting for vsync, because the LTDC has suspended, but did not resume. Fixes: 35ab6cfbf211 ("drm/stm: support runtime power management") Signed-off-by: Marek Vasut Cc: Yannick Fertré Cc: Philippe Cornu Cc: Benjamin Gaignard Cc: Vincent Abriou Cc: Maxime Coquelin Cc: Alexandre Torgue To: dri-devel@lists.freedesktop.org Cc: linux-stm32@st-md-mailman.stormreply.com Cc: linux-arm-kernel@lists.infradead.org Acked-by: Philippe Cornu Tested-by: Yannick Fertre Signed-off-by: Benjamin Gaignard Link: https://patchwork.freedesktop.org/patch/msgid/20200229221649.90813-1-marex@denx.de Signed-off-by: Sasha Levin --- drivers/gpu/drm/stm/ltdc.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/stm/ltdc.c b/drivers/gpu/drm/stm/ltdc.c index f894968d6e452..3f590d916e916 100644 --- a/drivers/gpu/drm/stm/ltdc.c +++ b/drivers/gpu/drm/stm/ltdc.c @@ -423,9 +423,12 @@ static void ltdc_crtc_atomic_enable(struct drm_crtc *crtc, struct drm_crtc_state *old_state) { struct ltdc_device *ldev = crtc_to_ltdc(crtc); + struct drm_device *ddev = crtc->dev; DRM_DEBUG_DRIVER("\n"); + pm_runtime_get_sync(ddev->dev); + /* Sets the background color value */ reg_write(ldev->regs, LTDC_BCCR, BCCR_BCBLACK); -- 2.25.1