From: Bjorn Andersson <bjorn.andersson@linaro.org>
To: Robert Foss <robert.foss@linaro.org>
Cc: geert+renesas@glider.be, catalin.marinas@arm.com,
agx@sigxcpu.org, todor.too@gmail.com,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
AngeloGioacchino Del Regno <kholk11@gmail.com>,
will@kernel.org, Anson.Huang@nxp.com, agross@kernel.org,
Andrey Konovalov <andrey.konovalov@linaro.org>,
linux-media@vger.kernel.org, devicetree@vger.kernel.org,
Tomasz Figa <tfiga@chromium.org>,
arnd@arndb.de, linux-arm-msm@vger.kernel.org, robh+dt@kernel.org,
mchehab@kernel.org, linux-arm-kernel@lists.infradead.org,
Sarvesh Sridutt <Sarvesh.Sridutt@smartwirelesscompute.com>,
max.oss.09@gmail.com, linux-kernel@vger.kernel.org,
leoyang.li@nxp.com, michael@walle.cc,
Azam Sadiq Pasha Kapatrala Syed <akapatra@quicinc.com>,
shawnguo@kernel.org
Subject: Re: [PATCH v1 04/17] media: camss: Make ISPIF subdevice optional
Date: Fri, 8 Jan 2021 13:07:17 -0600 [thread overview]
Message-ID: <X/itZVFeM0XeV9Sx@builder.lan> (raw)
In-Reply-To: <20210108120429.895046-5-robert.foss@linaro.org>
On Fri 08 Jan 06:04 CST 2021, Robert Foss wrote:
> This driver supports multiple architecture versions of the Qualcomm ISP.
> The CAMSS architecure which this driver is name after, and with the
> introduction of this series, the Titan architecture.
>
> The ISPIF is IP-block that is only present in the CAMSS architecture.
"is an IP-block"
> In order to support the Titan architecture, make the ISPIF an optional
> subdevice.
>
> Signed-off-by: Robert Foss <robert.foss@linaro.org>
> ---
> .../media/platform/qcom/camss/camss-ispif.c | 144 ++++++++++--------
> .../media/platform/qcom/camss/camss-ispif.h | 3 +-
> drivers/media/platform/qcom/camss/camss.c | 113 +++++++++-----
> drivers/media/platform/qcom/camss/camss.h | 2 +-
> 4 files changed, 160 insertions(+), 102 deletions(-)
>
> diff --git a/drivers/media/platform/qcom/camss/camss-ispif.c b/drivers/media/platform/qcom/camss/camss-ispif.c
[..]
> -int msm_ispif_subdev_init(struct ispif_device *ispif,
> +int msm_ispif_subdev_init(struct camss *camss,
> const struct resources_ispif *res)
> {
> - struct device *dev = to_device(ispif);
> - struct platform_device *pdev = to_platform_device(dev);
> + struct ispif_device *ispif = camss->ispif;
> + struct platform_device *pdev = to_platform_device(camss->dev);
It seems like several of the changes in this function is replacing
dev with camss->dev. If you retained a struct device *dev = camss->dev;
you would avoid this.
> struct resource *r;
> int i;
> int ret;
>
> + if (res == NULL && ispif == NULL)
Afaict this function is called conditional on camss->ispif != NULL, and
I don't see anything that would cause res to becomes NULL if is hasn't
been before this change.
So I think this check is unnecessary?
> + return 0;
> +
> + ispif->camss = camss;
> +
> /* Number of ISPIF lines - same as number of CSID hardware modules */
> - if (to_camss(ispif)->version == CAMSS_8x16)
> + if (camss->version == CAMSS_8x16)
> ispif->line_num = 2;
> - else if (to_camss(ispif)->version == CAMSS_8x96 ||
> - to_camss(ispif)->version == CAMSS_660)
> + else if (camss->version == CAMSS_8x96 ||
> + camss->version == CAMSS_660)
> ispif->line_num = 4;
> else
> return -EINVAL;
>
> - ispif->line = devm_kcalloc(dev, ispif->line_num, sizeof(*ispif->line),
> - GFP_KERNEL);
> + ispif->line = devm_kcalloc(camss->dev, ispif->line_num,
> + sizeof(*ispif->line), GFP_KERNEL);
> if (!ispif->line)
> return -ENOMEM;
>
[..]
> @@ -1393,6 +1410,9 @@ void msm_ispif_unregister_entities(struct ispif_device *ispif)
> {
> int i;
>
> + if (!ispif)
> + return;
I like this, but later in the patch you make the calls to this function
conditional on ispif != NULL. You should only need one of the checks.
Regards,
Bjorn
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2021-01-08 19:08 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-08 12:04 [PATCH v1 00/17] Add support for SDM845 Camera Subsystem Robert Foss
2021-01-08 12:04 ` [PATCH v1 01/17] media: camss: Fix comment using wrong function name Robert Foss
2021-01-08 18:51 ` Bjorn Andersson
2021-01-13 10:04 ` Robert Foss
2021-01-08 12:04 ` [PATCH v1 02/17] media: camss: Fix vfe_isr comment typo Robert Foss
2021-01-08 18:51 ` Bjorn Andersson
2021-01-13 10:04 ` Robert Foss
2021-01-08 12:04 ` [PATCH v1 03/17] media: camss: Add CAMSS_845 camss version Robert Foss
2021-01-08 12:04 ` [PATCH v1 04/17] media: camss: Make ISPIF subdevice optional Robert Foss
2021-01-08 19:07 ` Bjorn Andersson [this message]
2021-01-13 15:02 ` Robert Foss
2021-01-13 22:28 ` Andrey Konovalov
2021-01-14 9:55 ` Robert Foss
2021-01-08 12:04 ` [PATCH v1 06/17] media: camss: Add support for VFE hardware version Titan 170 Robert Foss
2021-01-14 10:48 ` Andrey Konovalov
2021-01-14 12:07 ` Robert Foss
2021-01-08 12:04 ` [PATCH v1 07/17] media: camss: Add missing format identifiers Robert Foss
2021-01-08 12:04 ` [PATCH v1 08/17] media: camss: Refactor CSID HW version support Robert Foss
2021-01-08 12:04 ` [PATCH v1 09/17] media: camss: Add support for CSID hardware version Titan 170 Robert Foss
2021-01-08 12:04 ` [PATCH v1 10/17] media: camss: Add support for CSIPHY " Robert Foss
2021-01-08 12:04 ` [PATCH v1 11/17] media: camss: Remove per VFE power domain toggling Robert Foss
2021-01-08 12:04 ` [PATCH v1 12/17] media: dt-bindings: media: qcom, camss: Add bindings for SDM845 camss Robert Foss
2021-01-09 1:44 ` [PATCH v1 12/17] media: dt-bindings: media: qcom,camss: " Laurent Pinchart
2021-01-08 12:04 ` [PATCH v1 13/17] media: camss: Enable SDM845 Robert Foss
2021-01-08 12:04 ` [PATCH v1 14/17] arm64: defconfig: Build Qcom CAMSS as module Robert Foss
2021-01-08 12:04 ` [PATCH v1 15/17] arm64: dts: sdm845: Add CAMSS ISP node Robert Foss
2021-01-08 12:04 ` [PATCH v1 16/17] arm64: dts: sdm845-db845c: " Robert Foss
2021-01-09 1:47 ` Laurent Pinchart
2021-01-13 10:03 ` Robert Foss
2021-01-08 12:04 ` [PATCH v1 17/17] arm64: dts: sdm845-db845c: Enable ov8856 sensor and connect to ISP Robert Foss
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=X/itZVFeM0XeV9Sx@builder.lan \
--to=bjorn.andersson@linaro.org \
--cc=Anson.Huang@nxp.com \
--cc=Sarvesh.Sridutt@smartwirelesscompute.com \
--cc=agross@kernel.org \
--cc=agx@sigxcpu.org \
--cc=akapatra@quicinc.com \
--cc=andrey.konovalov@linaro.org \
--cc=arnd@arndb.de \
--cc=catalin.marinas@arm.com \
--cc=devicetree@vger.kernel.org \
--cc=geert+renesas@glider.be \
--cc=kholk11@gmail.com \
--cc=laurent.pinchart@ideasonboard.com \
--cc=leoyang.li@nxp.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-arm-msm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-media@vger.kernel.org \
--cc=max.oss.09@gmail.com \
--cc=mchehab@kernel.org \
--cc=michael@walle.cc \
--cc=robert.foss@linaro.org \
--cc=robh+dt@kernel.org \
--cc=shawnguo@kernel.org \
--cc=tfiga@chromium.org \
--cc=todor.too@gmail.com \
--cc=will@kernel.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).