From patchwork Thu Jun 13 14:06:45 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?q?Alexis_Lothor=C3=A9?= X-Patchwork-Id: 804787 Received: from relay8-d.mail.gandi.net (relay8-d.mail.gandi.net [217.70.183.201]) (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 36B5F144D0B; Thu, 13 Jun 2024 14:10:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.70.183.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718287823; cv=none; b=gM58BlYwNupmwO822rpPTA+9AqJsEt0JUrqFDdkXG80MzP374wHQFUZ/gSuGCH44H1QeYKXWYNk9rGqInIka3/1nKvX81hJjhU2KrGlTr4qkzI5juLgTFvHAW+wXkFUTQhTf/jclrRTSRD1oHcTV7DgQkCt2Olr/PcBB2vgwmb0= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1718287823; c=relaxed/simple; bh=efT8/7km08T7pBrO07ujSxmypsAf8sMdycVHcxqyE5Q=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=eehYYU25sVoWgnZySgxuHID9JReQaRC8cLn7fcwC6+C2sidYaJxS2eRys8jjDzj/v7W8dMhPfHRqFAiZj90pW25stVvMyeeyBTODmg9a6rxQLN3eyzBDvNJw+qks5VRltp0IyD978KOKbLwgRDX9tWLBoUbegHhwrackRrduaSg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com; spf=pass smtp.mailfrom=bootlin.com; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b=j/sw2DNo; arc=none smtp.client-ip=217.70.183.201 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=bootlin.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=bootlin.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=bootlin.com header.i=@bootlin.com header.b="j/sw2DNo" Received: by mail.gandi.net (Postfix) with ESMTPSA id C669B1BF217; Thu, 13 Jun 2024 14:10:13 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1718287814; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=kjx+jpjANBXkWfNXv0n4w9Dw5J7tAkEhzVptEspIDqs=; b=j/sw2DNo4scE93+h+/6YT6j5G8ntNQmY3MY1vSjbswlG5tTcqpWWpcaTXq1zEw/Ri4e+r4 Y/14xT/tqSpncGGuvTdGeuDAbSuGq6OKh+i2yUXd1X/Rxm5k90RzP+31Xkko/KcvFc9T1j c1DsUqCsObAaooXmSJyWmWNXEZSMWICn7LBqGUwRUohunwbSNgKK41PZPWBt88QTwchlxN 1Kz27eYuCP3Ap3cJP3lGy2X7zcRGRMtI54GiFNOHJQ4fQ7SZe2APBxlR/I+43fNLTtiwW9 V31Z0aqHI2XLtDh1ijQrUK1tkdwiwuK3efmRS7x5B/4MWBJTAcsDeBKfO4duqA== From: =?utf-8?q?Alexis_Lothor=C3=A9?= Date: Thu, 13 Jun 2024 16:06:45 +0200 Subject: [PATCH 6/6] wifi: wilc1000: disable SDIO func IRQ before suspend Precedence: bulk X-Mailing-List: linux-wireless@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240613-wilc_suspend-v1-6-c2f766d0988c@bootlin.com> References: <20240613-wilc_suspend-v1-0-c2f766d0988c@bootlin.com> In-Reply-To: <20240613-wilc_suspend-v1-0-c2f766d0988c@bootlin.com> To: linux-wireless@vger.kernel.org Cc: Ajay Singh , Claudiu Beznea , Kalle Valo , Thomas Petazzoni , linux-kernel@vger.kernel.org, =?utf-8?q?Alexis_Lothor=C3=A9?= X-Mailer: b4 0.13.0 X-GND-Sasl: alexis.lothore@bootlin.com Issuing a system suspend command raises the following warning: WARNING: CPU: 0 PID: 15 at drivers/mmc/core/sdio.c:1042 mmc_sdio_suspend+0xd4/0x19c CPU: 0 PID: 15 Comm: kworker/u2:1 Not tainted 6.7.0-rc1-wt+ #710 Hardware name: Atmel SAMA5 Workqueue: events_unbound async_run_entry_fn unwind_backtrace from show_stack+0x18/0x1c show_stack from dump_stack_lvl+0x34/0x48 dump_stack_lvl from __warn+0x98/0x160 __warn from warn_slowpath_fmt+0xcc/0x140 warn_slowpath_fmt from mmc_sdio_suspend+0xd4/0x19c mmc_sdio_suspend from mmc_bus_suspend+0x50/0x70 mmc_bus_suspend from dpm_run_callback+0xe4/0x248 dpm_run_callback from __device_suspend+0x234/0x91c __device_suspend from async_suspend+0x24/0x9c async_suspend from async_run_entry_fn+0x6c/0x210 async_run_entry_fn from process_one_work+0x3a0/0x870 [...] This warning is due to a check in SDIO core ensuring that interrupts do not remain enabled for cards being powered down during suspend. WILC driver currently does not set the MMC_PM_KEEP_POWER flag, so disable interrupt when entering resume. Signed-off-by: Alexis Lothoré --- drivers/net/wireless/microchip/wilc1000/sdio.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/net/wireless/microchip/wilc1000/sdio.c b/drivers/net/wireless/microchip/wilc1000/sdio.c index 4e7014670945..0043f7a0fdf9 100644 --- a/drivers/net/wireless/microchip/wilc1000/sdio.c +++ b/drivers/net/wireless/microchip/wilc1000/sdio.c @@ -982,6 +982,8 @@ static int wilc_sdio_suspend(struct device *dev) host_sleep_notify(wilc); + wilc_sdio_disable_interrupt(wilc); + ret = wilc_sdio_reset(wilc); if (ret) { dev_err(&func->dev, "Fail reset sdio\n"); @@ -998,6 +1000,7 @@ static int wilc_sdio_resume(struct device *dev) dev_info(dev, "sdio resume\n"); wilc_sdio_init(wilc, true); + wilc_sdio_enable_interrupt(wilc); host_wakeup_notify(wilc);