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Date:   Fri, 11 Aug 2023 16:36:34 -0700
From:   Bjorn Andersson <quic_bjorande@quicinc.com>
To:     Bjorn Andersson <andersson@kernel.org>,
        Konrad Dybcio <konrad.dybcio@linaro.org>,
        Chris Lew <quic_clew@quicinc.com>
CC:     Alex Elder <elder@kernel.org>,
        "David S. Miller" <davem@davemloft.net>,
        Jakub Kicinski <kuba@kernel.org>,
        Mathieu Poirier <mathieu.poirier@linaro.org>,
        <netdev@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
        <linux-arm-msm@vger.kernel.org>,
        <linux-remoteproc@vger.kernel.org>, Andrew Lunn <andrew@lunn.ch>
Subject: Re: [PATCH v2 2/4] soc: qcom: aoss: Add debugfs interface for
 sending messages
Message-ID: <20230811233634.GU1428172@hu-bjorande-lv.qualcomm.com>
References: <20230811205839.727373-1-quic_bjorande@quicinc.com>
 <20230811205839.727373-3-quic_bjorande@quicinc.com>
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On Fri, Aug 11, 2023 at 01:58:37PM -0700, Bjorn Andersson wrote:
> From: Chris Lew <clew@codeaurora.org>
> 
> In addition to the normal runtime commands, the Always On Processor
> (AOP) provides a number of debug commands which can be used during
> system debugging for things such as preventing power collapse or placing
> floor votes for certain resources. Some of these are documented in the
> Robotics RB5 "Debug AOP ADB" linked below.
> 
> Provide a debugfs interface for the developer/tester to send these
> commands to the AOP.
> 
> Link: https://docs.qualcomm.com/bundle/publicresource/topics/80-88500-3/85_Debugging_AOP_ADB.html
> Signed-off-by: Chris Lew <clew@codeaurora.org>
> [bjorn: Dropped debugfs guards, improve error codes, rewrote commit message]
> Signed-off-by: Bjorn Andersson <quic_bjorande@quicinc.com>
> ---
>  drivers/soc/qcom/qcom_aoss.c | 33 +++++++++++++++++++++++++++++++++
>  1 file changed, 33 insertions(+)
> 
> diff --git a/drivers/soc/qcom/qcom_aoss.c b/drivers/soc/qcom/qcom_aoss.c
> index 880fe234ca0a..13bf13ab78d6 100644
> --- a/drivers/soc/qcom/qcom_aoss.c
> +++ b/drivers/soc/qcom/qcom_aoss.c
> @@ -3,6 +3,7 @@
>   * Copyright (c) 2019, Linaro Ltd
>   */
>  #include <linux/clk-provider.h>
> +#include <linux/debugfs.h>
>  #include <linux/interrupt.h>
>  #include <linux/io.h>
>  #include <linux/mailbox_client.h>
> @@ -82,6 +83,7 @@ struct qmp {
>  
>  	struct clk_hw qdss_clk;
>  	struct qmp_cooling_device *cooling_devs;
> +	struct dentry *debugfs_file;

Simon Horman pointed out in the previous version that this isn't added
to kernel-doc, and I missed correcting this.

Regards,
Bjorn