Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Message-ID: <ad986189-4ecb-5c03-a0a7-b5d91d4ae37f@inbox.ru>
Date:   Wed, 18 Jan 2023 09:18:36 +0300
MIME-Version: 1.0
User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101
 Thunderbird/102.6.0
Subject: Re: [PATCH v5 RESEND] drivers: bus: simple-pm-bus: Use clocks
To:     Liu Ying <victor.liu@nxp.com>, linux-kernel@vger.kernel.org
Cc:     gregkh@linuxfoundation.org, geert+renesas@glider.be,
        saravanak@google.com, linux-imx@nxp.com, greg@kroah.com,
        arnd@arndb.de
References: <20221226031417.1056745-1-victor.liu@nxp.com>
Content-Language: en-US
From:   Maxim Kochetkov <fido_max@inbox.ru>
In-Reply-To: <20221226031417.1056745-1-victor.liu@nxp.com>
Content-Type: text/plain; charset=UTF-8; format=flowed
Content-Transfer-Encoding: 7bit
Precedence: bulk


On 26.12.2022 06:14, Liu Ying wrote:
> Simple Power-Managed bus controller may need functional clock(s)
> to be enabled before child devices connected to the bus can be
> accessed.  Get the clock(s) as a bulk and enable/disable the
> clock(s) when the bus is being power managed.
> 
> One example is that Freescale i.MX8qxp pixel link MSI bus controller
> needs MSI clock and AHB clock to be enabled before accessing child
> devices.
> 
> Signed-off-by: Liu Ying <victor.liu@nxp.com>
Tested-by: Maxim Kochetkov <fido_max@inbox.ru>