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Message-ID: <CAG3jFytECFBW7mC0=0ZwL2HNof3jOiJ9=KqUhaPb-KvnW5ut2g@mail.gmail.com>
Date: Tue, 16 Mar 2021 12:12:08 +0100
From: Robert Foss <robert.foss@...aro.org>
To: Hans Verkuil <hverkuil@...all.nl>
Cc: Andy Gross <agross@...nel.org>,
Bjorn Andersson <bjorn.andersson@...aro.org>,
Todor Tomov <todor.too@...il.com>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
Rob Herring <robh+dt@...nel.org>,
angelogioacchino.delregno@...ainline.org,
MSM <linux-arm-msm@...r.kernel.org>,
linux-media <linux-media@...r.kernel.org>,
"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
<devicetree@...r.kernel.org>,
linux-kernel <linux-kernel@...r.kernel.org>,
AngeloGioacchino Del Regno <kholk11@...il.com>,
Sakari Ailus <sakari.ailus@....fi>,
Andrey Konovalov <andrey.konovalov@...aro.org>,
Rob Herring <robh@...nel.org>,
Tomasz Figa <tfiga@...omium.org>,
Azam Sadiq Pasha Kapatrala Syed <akapatra@...cinc.com>,
Sarvesh Sridutt <Sarvesh.Sridutt@...rtwirelesscompute.com>,
Laurent Pinchart <laurent.pinchart@...asonboard.com>,
Jonathan Marek <jonathan@...ek.ca>
Subject: Re: [PATCH v8 09/22] media: camss: Refactor CSID HW version support
Hey Hans,
Thanks for looking into this.
On Tue, 16 Mar 2021 at 10:36, Hans Verkuil <hverkuil@...all.nl> wrote:
>
> On 15/03/2021 16:59, Robert Foss wrote:
> > In order to support Qualcomm ISP hardware architectures that diverge
> > from older architectures, the CSID subdevice drivers needs to be refactored
> > to better abstract the different ISP hardware architectures.
> >
> > Signed-off-by: Robert Foss <robert.foss@...aro.org>
> > Reviewed-by: Andrey Konovalov <andrey.konovalov@...aro.org>
> > ---
> >
> >
> > Changes since v1:
> > - kernel test robot: Add missing include, interrupt.h
> >
> > Changes since v4:
> > - Andrey: Removed whitespace from some includes
> > - Andrey: Removed unused enum
> >
> > Changes since v5:
> > - Andrey: Fixed test pattern selection logic
> > - Andrey: Align test mode enum values with v4l mode selection return values
> > - Andrey: r-b
> > - Move Titan 170 test modes to the the Titan 170 commit
> > - Fixed test pattern boundary check
> >
> > Changes since v7:
> > - Hans: Fix checkpatch.pl --strict warnings
> >
> >
> >
> > drivers/media/platform/qcom/camss/Makefile | 2 +
> > .../platform/qcom/camss/camss-csid-4-1.c | 328 ++++++++++
> > .../platform/qcom/camss/camss-csid-4-7.c | 404 ++++++++++++
> > .../media/platform/qcom/camss/camss-csid.c | 608 +-----------------
> > .../media/platform/qcom/camss/camss-csid.h | 129 +++-
> > 5 files changed, 885 insertions(+), 586 deletions(-)
> > create mode 100644 drivers/media/platform/qcom/camss/camss-csid-4-1.c
> > create mode 100644 drivers/media/platform/qcom/camss/camss-csid-4-7.c
> >
>
> <snip>
>
> > diff --git a/drivers/media/platform/qcom/camss/camss-csid.h b/drivers/media/platform/qcom/camss/camss-csid.h
> > index 479ac1f83836..613ef377b051 100644
> > --- a/drivers/media/platform/qcom/camss/camss-csid.h
> > +++ b/drivers/media/platform/qcom/camss/camss-csid.h
> > @@ -11,6 +11,7 @@
> > #define QC_MSM_CAMSS_CSID_H
> >
> > #include <linux/clk.h>
> > +#include <linux/interrupt.h>
> > #include <media/media-entity.h>
> > #include <media/v4l2-ctrls.h>
> > #include <media/v4l2-device.h>
> > @@ -44,18 +45,42 @@
> > #define DATA_TYPE_RAW_16BIT 0x2e
> > #define DATA_TYPE_RAW_20BIT 0x2f
> >
> > -enum csid_payload_mode {
> > - CSID_PAYLOAD_MODE_INCREMENTING = 0,
> > - CSID_PAYLOAD_MODE_ALTERNATING_55_AA = 1,
> > - CSID_PAYLOAD_MODE_ALL_ZEROES = 2,
> > - CSID_PAYLOAD_MODE_ALL_ONES = 3,
> > - CSID_PAYLOAD_MODE_RANDOM = 4,
> > - CSID_PAYLOAD_MODE_USER_SPECIFIED = 5,
> > +#define CSID_RESET_TIMEOUT_MS 500
> > +
> > +enum csid_testgen_mode {
> > + CSID_PAYLOAD_MODE_DISABLED = 0,
> > + CSID_PAYLOAD_MODE_INCREMENTING = 1,
> > + CSID_PAYLOAD_MODE_ALTERNATING_55_AA = 2,
> > + CSID_PAYLOAD_MODE_ALL_ZEROES = 3,
> > + CSID_PAYLOAD_MODE_ALL_ONES = 4,
> > + CSID_PAYLOAD_MODE_RANDOM = 5,
> > + CSID_PAYLOAD_MODE_USER_SPECIFIED = 6,
> > + CSID_PAYLOAD_MODE_NUM_SUPPORTED_GEN1 = 6, /* excluding disabled */
> > +};
> > +
> > +static const char * const csid_testgen_modes[] = {
> > + "Disabled",
> > + "Incrementing",
> > + "Alternating 0x55/0xAA",
> > + "All Zeros 0x00",
> > + "All Ones 0xFF",
> > + "Pseudo-random Data",
> > + "User Specified",
> > +};
>
> This gives this sparse warning:
>
> 'csid_testgen_modes' defined but not used [-Wunused-const-variable=]
Thanks for supplying a patch. I'll merge it into patch 9 & 10.
>
> This array needs to be moved to camss-csid.c and declared as an extern
> here. Also, this menu array needs to be terminated with a NULL, and the
> right capitalization needs to be used (first character of each word must
> be a capital). This is a suggested patch I made to verify that this solves
> this issue, but really both patch 9 and 10 need to be modified.
>
> Signed-off-by: Hans Verkuil <hverkuil-cisco@...all.nl>
> ---
> drivers/media/platform/qcom/camss/camss-csid.c | 14 ++++++++++++++
> drivers/media/platform/qcom/camss/camss-csid.h | 13 +------------
> 2 files changed, 15 insertions(+), 12 deletions(-)
>
> diff --git a/drivers/media/platform/qcom/camss/camss-csid.c b/drivers/media/platform/qcom/camss/camss-csid.c
> index fb94dc03ccd4..1513b3d47fc2 100644
> --- a/drivers/media/platform/qcom/camss/camss-csid.c
> +++ b/drivers/media/platform/qcom/camss/camss-csid.c
> @@ -27,6 +27,20 @@
>
> #define MSM_CSID_NAME "msm_csid"
>
> +const char * const csid_testgen_modes[] = {
> + "Disabled",
> + "Incrementing",
> + "Alternating 0x55/0xAA",
> + "All Zeros 0x00",
> + "All Ones 0xFF",
> + "Pseudo-Random Data",
> + "User Specified",
> + "Complex Pattern",
> + "Color Box",
> + "Color Bars",
> + NULL
> +};
> +
> u32 csid_find_code(u32 *codes, unsigned int ncodes,
> unsigned int match_format_idx, u32 match_code)
> {
> diff --git a/drivers/media/platform/qcom/camss/camss-csid.h b/drivers/media/platform/qcom/camss/camss-csid.h
> index c2a025f6846b..81a3704ac0e3 100644
> --- a/drivers/media/platform/qcom/camss/camss-csid.h
> +++ b/drivers/media/platform/qcom/camss/camss-csid.h
> @@ -62,18 +62,7 @@ enum csid_testgen_mode {
> CSID_PAYLOAD_MODE_NUM_SUPPORTED_GEN2 = 9, /* excluding disabled */
> };
>
> -static const char * const csid_testgen_modes[] = {
> - "Disabled",
> - "Incrementing",
> - "Alternating 0x55/0xAA",
> - "All Zeros 0x00",
> - "All Ones 0xFF",
> - "Pseudo-random Data",
> - "User Specified",
> - "Complex pattern",
> - "Color box",
> - "Color bars",
> -};
> +extern const char * const csid_testgen_modes[];
>
> struct csid_format {
> u32 code;
> --
> 2.30.1
>
> Regards,
>
> Hans
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