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From: Ulf Hansson <ulf.hansson@linaro.org>
To: linux-mmc@vger.kernel.org, Ulf Hansson <ulf.hansson@linaro.org>,
	Adrian Hunter <adrian.hunter@intel.com>,
	Douglas Anderson <dianders@chromium.org>,
	Matthias Kaehlcke <mka@chromium.org>
Cc: Shawn Lin <shawn.lin@rock-chips.com>,
	Jaehoon Chung <jh80.chung@samsung.com>,
	Yong Mao <yong.mao@mediatek.com>,
	Chaotian Jing <chaotian.jing@mediatek.com>,
	linux-kernel@vger.kernel.org
Subject: [PATCH 07/11] mmc: core: WARN if SDIO IRQs are enabled for non-powered card in suspend
Date: Tue,  3 Sep 2019 16:22:03 +0200	[thread overview]
Message-ID: <20190903142207.5825-8-ulf.hansson@linaro.org> (raw)
In-Reply-To: <20190903142207.5825-1-ulf.hansson@linaro.org>

To make sure SDIO func drivers behaves correctly during system
suspend/resume, let add a WARN_ON in case the condition is a non-powered
SDIO card and there are some SDIO IRQs still being claimed.

Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
 drivers/mmc/core/sdio.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/mmc/core/sdio.c b/drivers/mmc/core/sdio.c
index 8dd8fc32ecca..c557f1519b77 100644
--- a/drivers/mmc/core/sdio.c
+++ b/drivers/mmc/core/sdio.c
@@ -951,6 +951,8 @@ static int mmc_sdio_pre_suspend(struct mmc_host *host)
  */
 static int mmc_sdio_suspend(struct mmc_host *host)
 {
+	WARN_ON(host->sdio_irqs && !mmc_card_keep_power(host));
+
 	/* Prevent processing of SDIO IRQs in suspended state. */
 	mmc_card_set_suspended(host->card);
 	cancel_delayed_work_sync(&host->sdio_irq_work);
-- 
2.17.1


  parent reply	other threads:[~2019-09-03 14:23 UTC|newest]

Thread overview: 34+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-09-03 14:21 [PATCH 00/11] mmc: core: PM fixes/improvements for SDIO IRQs Ulf Hansson
2019-09-03 14:21 ` [PATCH 01/11] mmc: core: Add helper function to indicate if SDIO IRQs is enabled Ulf Hansson
2019-09-04 23:58   ` Matthias Kaehlcke
2019-09-05  7:28     ` Ulf Hansson
2019-09-03 14:21 ` [PATCH 02/11] mmc: dw_mmc: Re-store SDIO IRQs mask at system resume Ulf Hansson
2019-09-05  0:14   ` Matthias Kaehlcke
2019-09-05  7:29     ` Ulf Hansson
2019-09-05 17:01       ` Matthias Kaehlcke
2019-09-05 23:47   ` Doug Anderson
2019-09-06  9:19     ` Ulf Hansson
2019-09-06 21:37       ` Doug Anderson
2019-09-03 14:21 ` [PATCH 03/11] mmc: mtk-sd: " Ulf Hansson
2019-09-03 14:22 ` [PATCH 04/11] mmc: core: Move code to get pending SDIO IRQs to a function Ulf Hansson
2019-09-03 14:22 ` [PATCH 05/11] mmc: core: Clarify sdio_irq_pending flag for MMC_CAP2_SDIO_IRQ_NOTHREAD Ulf Hansson
2019-09-05  0:34   ` Matthias Kaehlcke
2019-09-05  7:29     ` Ulf Hansson
2019-09-05 23:47   ` Doug Anderson
2019-09-06  9:19     ` Ulf Hansson
2019-09-06 21:30       ` Doug Anderson
2019-09-08  9:11         ` Ulf Hansson
2019-09-03 14:22 ` [PATCH 06/11] mmc: core: Clarify that the ->ack_sdio_irq() callback is mandatory Ulf Hansson
2019-09-05 17:33   ` Matthias Kaehlcke
2019-09-03 14:22 ` Ulf Hansson [this message]
2019-09-05 17:38   ` [PATCH 07/11] mmc: core: WARN if SDIO IRQs are enabled for non-powered card in suspend Matthias Kaehlcke
2019-09-03 14:22 ` [PATCH 08/11] mmc: core: Fixup processing of SDIO IRQs during system suspend/resume Ulf Hansson
2019-09-05 18:43   ` Matthias Kaehlcke
2019-09-06  9:42     ` Ulf Hansson
2019-09-05 23:48   ` Doug Anderson
2019-09-06  9:42     ` Ulf Hansson
2019-09-03 14:22 ` [PATCH 09/11] mmc: sdhci: Drop redundant check in sdhci_ack_sdio_irq() Ulf Hansson
2019-09-05 18:57   ` Matthias Kaehlcke
2019-09-03 14:22 ` [PATCH 10/11] mmc: sdhci: Drop redundant code for SDIO IRQs Ulf Hansson
2019-09-03 14:22 ` [PATCH 11/11] mmc: sdhci: Convert to use sdio_irq_enabled() Ulf Hansson
2019-09-05 19:02   ` Matthias Kaehlcke

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