From: Dmitry Rokosov <ddrokosov@sberdevices.ru>
To: <krzysztof.kozlowski@linaro.org>, <robh@kernel.org>,
<neil.armstrong@linaro.org>, <khilman@baylibre.com>,
<jbrunet@baylibre.com>, <martin.blumenstingl@googlemail.com>,
<jianxin.pan@amlogic.com>
Cc: <kernel@sberdevices.ru>, <linux-kernel@vger.kernel.org>,
<linux-arm-kernel@lists.infradead.org>,
<linux-amlogic@lists.infradead.org>, <devicetree@vger.kernel.org>,
<rockosov@gmail.com>
Subject: Re: [PATCH v2] firmware: meson_sm: populate platform devices from sm device tree data
Date: Fri, 24 Mar 2023 17:08:25 +0300 [thread overview]
Message-ID: <20230324140825.tnrufiqypfv2m3ze@CAB-WSD-L081021> (raw)
In-Reply-To: <20230324140141.6743-1-ddrokosov@sberdevices.ru>
Sorry, I've missed the changelog. Please find it below if any.
On Fri, Mar 24, 2023 at 05:01:41PM +0300, Dmitry Rokosov wrote:
> In some meson boards, secure monitor device has children, for example,
> power secure controller. By default, secure monitor isn't the bus in terms
> of device tree subsystem, so the of_platform initialization code doesn't
> populate its device tree data. As a result, secure monitor's children
> aren't probed at all.
>
> Run the 'of_platform_populate()' routine manually to resolve such issues.
>
> Signed-off-by: Dmitry Rokosov <ddrokosov@sberdevices.ru>
---
Changes v2 since v1 at [1]:
- decline the device tree /firmware based solution
- introduce devm_of_platform_populate() solution in the meson sm driver
Links:
[1] https://lore.kernel.org/all/20230323185548.13731-1-ddrokosov@sberdevices.ru/
> ---
> drivers/firmware/meson/meson_sm.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/firmware/meson/meson_sm.c b/drivers/firmware/meson/meson_sm.c
> index 77aa5c6398aa..b79d0e316cb1 100644
> --- a/drivers/firmware/meson/meson_sm.c
> +++ b/drivers/firmware/meson/meson_sm.c
> @@ -316,7 +316,7 @@ static int __init meson_sm_probe(struct platform_device *pdev)
> if (sysfs_create_group(&pdev->dev.kobj, &meson_sm_sysfs_attr_group))
> goto out_in_base;
>
> - return 0;
> + return devm_of_platform_populate(dev);
>
> out_in_base:
> iounmap(fw->sm_shmem_in_base);
> --
> 2.36.0
>
--
Thank you,
Dmitry
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prev parent reply other threads:[~2023-03-24 14:09 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-24 14:01 [PATCH v2] firmware: meson_sm: populate platform devices from sm device tree data Dmitry Rokosov
2023-03-24 14:05 ` neil.armstrong
2023-03-24 14:13 ` Dmitry Rokosov
2023-03-24 14:08 ` Dmitry Rokosov [this message]
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