From patchwork Thu May 21 15:25:32 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Manivannan Sadhasivam X-Patchwork-Id: 11563347 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id BEEFE739 for ; Thu, 21 May 2020 15:26:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A266E207F7 for ; Thu, 21 May 2020 15:26:39 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1590074799; bh=AJmYW9HuU9yryKkC/CR9tmkLTg2Hr/aoAaHtA7zSaaU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:List-ID:From; b=P/GF56aAVPMNeNmwWEuuk9CuiGUeUsTPqcs18gA/R27CSMj6f4+SwnfaeZhV7Q78a Nckvcw6bn1rIR2bAonQs4TdVvJbBARQI4TZNtNcstcXIaIIiJcn4ax5eww2tci3cS+ n4ormhh2gWz/o6uLjcCeWqLpTI+C63F1T2yGO7a4= Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730476AbgEUP0V (ORCPT ); Thu, 21 May 2020 11:26:21 -0400 Received: from mail.kernel.org ([198.145.29.99]:34374 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730456AbgEUP0U (ORCPT ); Thu, 21 May 2020 11:26:20 -0400 Received: from localhost.localdomain (unknown [157.51.235.56]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPSA id 76AC4207D8; Thu, 21 May 2020 15:26:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=default; t=1590074779; bh=AJmYW9HuU9yryKkC/CR9tmkLTg2Hr/aoAaHtA7zSaaU=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=yDO93MN2kaSoVyK8ITtY2+hh4jBgyCAcJaFngTQje9A3eWr/WOu6P3dKjVBCouCIN VJPDQKIW7d9B02kwVoXK6jjaRuTnb5GXYlYRmjneBVbj2PZvxm7+bZQpA9izwQPIQd Bksb6FtB1hxL7vC0Y1nEH2eh/QX9D1W3vFxuyqHk= From: mani@kernel.org To: gregkh@linuxfoundation.org Cc: hemantk@codeaurora.org, jhugo@codeaurora.org, linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, Bhaumik Bhatt , Manivannan Sadhasivam Subject: [PATCH 06/14] bus: mhi: core: Return appropriate error codes for AMSS load failure Date: Thu, 21 May 2020 20:55:32 +0530 Message-Id: <20200521152540.17335-7-mani@kernel.org> X-Mailer: git-send-email 2.26.GIT In-Reply-To: <20200521152540.17335-1-mani@kernel.org> References: <20200521152540.17335-1-mani@kernel.org> MIME-Version: 1.0 Sender: linux-arm-msm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-arm-msm@vger.kernel.org From: Bhaumik Bhatt When loading AMSS firmware using BHIe protocol, return -ETIMEDOUT if no response is received within the timeout or return -EIO in case of a protocol returned failure or an MHI error state. Signed-off-by: Bhaumik Bhatt Reviewed-by: Jeffrey Hugo Reviewed-by: Manivannan Sadhasivam Signed-off-by: Manivannan Sadhasivam --- drivers/bus/mhi/core/boot.c | 23 ++++++++++++----------- 1 file changed, 12 insertions(+), 11 deletions(-) diff --git a/drivers/bus/mhi/core/boot.c b/drivers/bus/mhi/core/boot.c index 17c636b4bc6e..cf6dc5a2361c 100644 --- a/drivers/bus/mhi/core/boot.c +++ b/drivers/bus/mhi/core/boot.c @@ -176,6 +176,7 @@ static int mhi_fw_load_amss(struct mhi_controller *mhi_cntrl, void __iomem *base = mhi_cntrl->bhie; rwlock_t *pm_lock = &mhi_cntrl->pm_lock; u32 tx_status, sequence_id; + int ret; read_lock_bh(pm_lock); if (!MHI_REG_ACCESS_VALID(mhi_cntrl->pm_state)) { @@ -198,19 +199,19 @@ static int mhi_fw_load_amss(struct mhi_controller *mhi_cntrl, read_unlock_bh(pm_lock); /* Wait for the image download to complete */ - wait_event_timeout(mhi_cntrl->state_event, - MHI_PM_IN_ERROR_STATE(mhi_cntrl->pm_state) || - mhi_read_reg_field(mhi_cntrl, base, - BHIE_TXVECSTATUS_OFFS, - BHIE_TXVECSTATUS_STATUS_BMSK, - BHIE_TXVECSTATUS_STATUS_SHFT, - &tx_status) || tx_status, - msecs_to_jiffies(mhi_cntrl->timeout_ms)); - - if (MHI_PM_IN_ERROR_STATE(mhi_cntrl->pm_state)) + ret = wait_event_timeout(mhi_cntrl->state_event, + MHI_PM_IN_ERROR_STATE(mhi_cntrl->pm_state) || + mhi_read_reg_field(mhi_cntrl, base, + BHIE_TXVECSTATUS_OFFS, + BHIE_TXVECSTATUS_STATUS_BMSK, + BHIE_TXVECSTATUS_STATUS_SHFT, + &tx_status) || tx_status, + msecs_to_jiffies(mhi_cntrl->timeout_ms)); + if (MHI_PM_IN_ERROR_STATE(mhi_cntrl->pm_state) || + tx_status != BHIE_TXVECSTATUS_STATUS_XFER_COMPL) return -EIO; - return (tx_status == BHIE_TXVECSTATUS_STATUS_XFER_COMPL) ? 0 : -EIO; + return (!ret) ? -ETIMEDOUT : 0; } static int mhi_fw_load_sbl(struct mhi_controller *mhi_cntrl,