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 71D4F1D9679; Fri, 4 Oct 2024 18:28:10 +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=1728066490; cv=none; b=eUADTAq/8nTQXYoW5mzobePBtJJ/FpKnFWg/Wo8BbbE/SU1hsRTlThZaqTa9LUfHGmy9/77To4mwPR0qaFF8jWwpzecShCfzfm/woVhBvwiVJBiDya92MLemFgyoG6zeZdd0xAAn7FlBCjuJmGobZ0tTGr5b9KxMesLzqlrJ8+8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728066490; c=relaxed/simple; bh=iMoILzupACCtZRHjdUiFHLqjkgzF4g9Kdj6WZGyAT1I=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=pidCXvjlh1BnQ8GmueTdq3yNKmMRGfrYwyRdBj1VqOlOkNlNhZxJT8QtNqPVfGdavXPS4xlveH83KzqwJaFJ0hlHyHO+enQponkLpsSrDgoAmhS7YbAhR7sHreOtaUM4yT/rIenz1TM9lAuNbNVstx71yv6LGBiygtCII+i7G/A= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=syYo5OKU; 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="syYo5OKU" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 85096C4CED0; Fri, 4 Oct 2024 18:28:09 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1728066490; bh=iMoILzupACCtZRHjdUiFHLqjkgzF4g9Kdj6WZGyAT1I=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=syYo5OKUZayoXRZg4q2QMAX49fBvy74EJ56MPXD63hDt14GqHueFThE1QiSarMlq/ ZBNz9W5zfppvDYDThsVT3AIe6Hlod8C4sVnJAjs01DoHBGddRfl4kKRHiX1cLnDw0J 0WCMOg9vilOD7csA3XoP0yPJAKOe9tXWVZpr4vUhw87+1rNog20OCbXgBMroH1ZJkZ HxBZDTaZ9MO10whwCJoANlV+WLlsoB58rdKwrk+/mM+9zCk82lxvswR81xatajcMYZ 5QHgsOviCw0DGulpM1GdaHb8UQLzRi8mvlb+xSXd9AZomrbGhk5R04gyOajLHF5HcF NpHsNd0Ub8jug== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Xu Yang , Peter Chen , Greg Kroah-Hartman , Sasha Levin , linux-usb@vger.kernel.org Subject: [PATCH AUTOSEL 6.1 29/42] usb: chipidea: udc: enable suspend interrupt after usb reset Date: Fri, 4 Oct 2024 14:26:40 -0400 Message-ID: <20241004182718.3673735-29-sashal@kernel.org> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20241004182718.3673735-1-sashal@kernel.org> References: <20241004182718.3673735-1-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 X-stable-base: Linux 6.1.112 Content-Transfer-Encoding: 8bit From: Xu Yang [ Upstream commit e4fdcc10092fb244218013bfe8ff01c55d54e8e4 ] Currently, suspend interrupt is enabled before pullup enable operation. This will cause a suspend interrupt assert right after pullup DP. This suspend interrupt is meaningless, so this will ignore such interrupt by enable it after usb reset completed. Signed-off-by: Xu Yang Acked-by: Peter Chen Link: https://lore.kernel.org/r/20240823073832.1702135-1-xu.yang_2@nxp.com Signed-off-by: Greg Kroah-Hartman Signed-off-by: Sasha Levin --- drivers/usb/chipidea/udc.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c index 8c3e3a635ac2d..35dfc05854fb7 100644 --- a/drivers/usb/chipidea/udc.c +++ b/drivers/usb/chipidea/udc.c @@ -86,7 +86,7 @@ static int hw_device_state(struct ci_hdrc *ci, u32 dma) hw_write(ci, OP_ENDPTLISTADDR, ~0, dma); /* interrupt, error, port change, reset, sleep/suspend */ hw_write(ci, OP_USBINTR, ~0, - USBi_UI|USBi_UEI|USBi_PCI|USBi_URI|USBi_SLI); + USBi_UI|USBi_UEI|USBi_PCI|USBi_URI); } else { hw_write(ci, OP_USBINTR, ~0, 0); } @@ -876,6 +876,7 @@ __releases(ci->lock) __acquires(ci->lock) { int retval; + u32 intr; spin_unlock(&ci->lock); if (ci->gadget.speed != USB_SPEED_UNKNOWN) @@ -889,6 +890,11 @@ __acquires(ci->lock) if (retval) goto done; + /* clear SLI */ + hw_write(ci, OP_USBSTS, USBi_SLI, USBi_SLI); + intr = hw_read(ci, OP_USBINTR, ~0); + hw_write(ci, OP_USBINTR, ~0, intr | USBi_SLI); + ci->status = usb_ep_alloc_request(&ci->ep0in->ep, GFP_ATOMIC); if (ci->status == NULL) retval = -ENOMEM; -- 2.43.0