Commit Graph

309 Commits

Author SHA1 Message Date
Hungyu Lin
7b1734e176 media: qcom: camss: Rename unused macro parameter
The ISPIF_VFE_m_RDI_INTF_n_PACK_CFG_0_CID_c_PLAIN() macro
declares a parameter named 'c' but uses 'cid' in the macro
body instead.

Rename the parameter to match the identifier used in the
macro body and silence the checkpatch warning:

  WARNING: Argument 'c' is not used in function-like macro

No functional change intended.

Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Signed-off-by: Hungyu Lin <dennylin0707@gmail.com>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
2026-07-30 11:05:11 +01:00
Loic Poulain
6a75e3d4f6 media: qcom: camss: vfe-340: Support for PIX client
Add support for the vfe-340 PIX write engine, enabling frame capture
through the PIX video device (e.g. msm_vfe0_pix). The PIX path requires
a separate configuration flow from RDI, including cropping setup, line-
based write engine configuration, and the correct packer format based
on the input pixel format.

In contrast to RDI, the PIX interface embeds a lightweight processing
engine we can use for cropping, configuring custom stride/alignment,
and, in the future, extracting frame statistics.

The functionality has been validated on Arduino-Uno-Q with:
media-ctl -d /dev/media0 --reset
media-ctl -d /dev/media0 -l '"msm_csiphy0":1->"msm_csid0":0[1],"msm_csid0":4->"msm_vfe0_pix":0[1]'
media-ctl -d /dev/media0 -V '"imx219 1-0010":0[fmt:SRGGB8_1X8/640x480 field:none]'
media-ctl -d /dev/media0 -V '"msm_csiphy0":0[fmt:SRGGB8_1X8/640x480 field:none]'
media-ctl -d /dev/media0 -V '"msm_csid0":0[fmt:SRGGB8_1X8/640x480 field:none]'
media-ctl -d /dev/media0 -V '"msm_vfe0_pix":0[fmt:SRGGB8_1X8/640x480 field:none]'
yavta -B capture-mplane --capture=3 -n 3 -f SRGGB8 -s 640x480 /dev/video3

Signed-off-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
[bod: Squash down fix for bpp unused in vfe_packer_format]
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
2026-05-31 12:26:41 +01:00
Loic Poulain
880a3e4033 media: qcom: camss: vfe-340: Proper client handling
We need to properly map camss WM index to our internal WM client
instance. Today we only support RDI interfaces with the RDI_WM
macro, introduce a __wm_to_client helper to support any interface.

Signed-off-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
2026-05-31 09:45:20 +01:00
Loic Poulain
ad543f3842 media: qcom: camss: csid-340: Enable PIX interface routing
Add PIX path support to the CSID-340 driver. The hardware exposes a
dedicated PIX interface in addition to the existing RDI paths, but
the driver only supported RDI stream configuration so far.

The PIX path is configured similarly to RDI but requires decode-format
to be specified.

The PIX pipeline can subsequently perform further processing,
including scaling, cropping, and statistics.

Signed-off-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
2026-05-31 09:45:20 +01:00
Loic Poulain
189c9ef362 media: qcom: camss: csid-340: Add port-to-interface mapping
The CSID-340 block uses different register offsets for the PIX and RDI
interfaces, but the driver previously indexed these registers directly
with the camss port number. This happened to work for RDI because the
port index matches the RDI register layout, but this assumption breaks
with upcoming PIX interface support

Introduce an explicit port-to-interface mapping and use the mapped iface
index when programming CSID_CFG0 and CSID_CTRL. This replaces the
standalone __csid_ctrl_rdi() helper and simplifies the RDI stream setup
path.

Also correct the CSID_CFG0/CTRL base offsets and clean up the code in
preparation for full PIX path support.

Like RDI, PIX outputs Bayer frames but can also achieve some image
processing such as scaling, cropping and generating statitics (e.g.
histogram), it also offer more flexebility in term of image alignment
and stride. All of that can then later be leveraged to improve
software or hardware frames post-processing.

Signed-off-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
2026-05-31 09:45:20 +01:00
Loic Poulain
83fcf113ea media: qcom: camss: csid-340: Switch to generic CSID_CFG/CTRL registers
The former RDI-specific register definitions (CSID_RDI_CFG0/CTRL) are
renamed to unified CSID_CFG0/CSID_CTRL variants, as their layout is
interface agnostic. This refactoring provides the foundation for
extending csid-340 with missing PIX interface/path support.

Signed-off-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
2026-05-31 09:45:20 +01:00
Bryan O'Donoghue
ad136e5263 media: qcom: camss: Fix RDI streaming for CSID GEN3
Fix streaming from CSIDn RDI1 and RDI2 to VFEn RDI1 and RDI2. A pattern we
have replicated throughout CAMSS where we use the VC number to populate
both the VC fields and port fields of the CSID means that in practice only
VC = 0 on CSIDn:RDI0 to VFEn:RDI0 works.

Fix that for CSID gen3 by separating VC and port. Fix to VC zero as a
bugfix we will look to properly populate the VC field with follow on
patches later.

Fixes: d96fe1808d ("media: qcom: camss: Add CSID 780 support")
Cc: stable@vger.kernel.org
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Reviewed-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
2026-05-09 00:22:59 +01:00
Bryan O'Donoghue
618765634c media: qcom: camss: Fix RDI streaming for CSID GEN2
Fix streaming from CSIDn RDI1 and RDI2 to VFEn RDI1 and RDI2. A pattern we
have replicated throughout CAMSS where we use the VC number to populate
both the VC fields and port fields of the CSID means that in practice only
VC = 0 on CSIDn:RDI0 to VFEn:RDI0 works.

Fix that for CSID gen2 by separating VC and port. Fix to VC zero as a
bugfix we will look to properly populate the VC field with follow on
patches later.

Fixes: 729fc005c8 ("media: qcom: camss: Split testgen, RDI and RX for CSID 170")
Cc: stable@vger.kernel.org
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Reviewed-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
2026-05-09 00:22:59 +01:00
Bryan O'Donoghue
cc1c35619c media: qcom: camss: Fix RDI streaming for CSID 340
Fix streaming from CSIDn RDI1 and RDI2 to VFEn RDI1 and RDI2. A pattern we
have replicated throughout CAMSS where we use the VC number to populate
both the VC fields and port fields of the CSID means that in practice only
VC = 0 on CSIDn:RDI0 to VFEn:RDI0 works.

Fix that for CSID 340 by separating VC and port. Fix to VC zero as a bugfix
we will look to properly populate the VC field with follow on patches
later.

Fixes: f0fc808a46 ("media: qcom: camss: Add CSID 340 support")
Cc: stable@vger.kernel.org
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Reviewed-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
2026-05-09 00:22:59 +01:00
Bryan O'Donoghue
93ea81d165 media: qcom: camss: Fix RDI streaming for CSID 680
Fix streaming to RDI1 and RDI2. csid->phy.en_vc contains a bitmask of
enabled CSID ports not virtual channels.

We cycle through the number of available CSID ports and test this value
against the vc_en bitmask.

We then use the passed value both as an index to the port configuration
macros and as a virtual channel index.

This is a very broken pattern. Reviewing the initial introduction of VC
support it states that you can only map one CSID to one VFE. This is true
however each CSID has multiple sources which can sink inside of the VFE -
for example there is a "pixel" path for bayer stats which sources @
CSID(x):3 and sinks on VFE(x):pix.

That is CSID port # 3 should drive VFE port #3. With our current setup only
a sensor which drives virtual channel number #3 could possibly enable that
setup.

This is deeply wrong the virtual channel has no relevance to hooking CSID
to VFE, a fact that is proven after this patch is applied allowing
RDI0,RDI1 and RDI2 to function with VC0 whereas before only RDI1 worked.

Another way the current model breaks is the DT field. A sensor driving
different data-types on the same VC would not be able to separate the VC:DT
pair to separate RDI outputs, thus breaking another feature of VCs in the
MIPI data-stream.

Default the VC back to zero. A follow on series will implement subdev
streams to actually enable VCs without breaking CSID source to VFE sink.

Fixes: 253314b204 ("media: qcom: camss: Add CSID 680 support")
Cc: stable@vger.kernel.org
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Reviewed-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
2026-05-09 00:22:59 +01:00
Loic Poulain
e458c14072 media: qcom: camss: vfe: Make PIX BPL alignment format-based on CAMSS_2290
Split the VFE bytes-per-line (BPL) alignment logic into separate
helpers for RDI and PIX paths. RDI is usually aligned on RDI write
engine bus constraint such as 64-bit or 128-bit. But PIX engine
is usually (at least on platform I looked at) based on pixel format.

On CAMSS_2290, PIX BPL alignment is set to 0 to indicate that the
alignment must be derived from the pixel format. This allows the
pipeline to use camss_format_get_bpl_alignment().

For other platforms, retain the legacy PIX default (16 bytes), until
PIX is properly tested/enabled.

A future improvement would be to remove platform-specific conditionals
from the VFE code and move the alignment requirements into the
per-platform VFE resource data.

Signed-off-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
[bod: Fixed straggling newlines]
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
2026-05-09 00:22:59 +01:00
Loic Poulain
ac437a96b7 media: qcom: camss: Use proper BPL alignment helper and non-power-of-two rounding
Bytes-per-line (BPL) alignment in CAMSS currently uses ALIGN(), which
only works correctly for power-of-two values. Some RAW Bayer packing
formats (e.g. RAW10/12/14) require non-power-of-two alignment such as
3, 5, or 7-byte multiples, so ALIGN() produces incorrect results.

Introduce the use of roundup() with the per-format alignment returned by
camss_format_get_bpl_alignment() when no hardware alignment is enforced
(video->bpl_alignment).

Signed-off-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
2026-05-09 00:22:59 +01:00
Loic Poulain
91978c39ee media: qcom: camss: Add per-format BPL alignment helper
Add camss_format_get_bpl_alignment(), a helper that returns the
bytes-per-line (BPL) alignment requirement for a given CAMSS format.

Different RAW Bayer packing schemes impose different BPL alignment
constraints (e.g. RAW10 requires multiples of 5 bytes, RAW12 multiples of
3 bytes, RAW14 multiples of 7 bytes, etc.). Centralizing this logic
makes the alignment rules explicit and avoids duplicating them across
the pipeline.

This will allow PIX paths and buffer preparation code to correctly
round up BPL values to hardware-required boundaries.

Signed-off-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
2026-05-09 00:22:59 +01:00
Loic Poulain
5837c36e01 media: qcom: camss: Add debug message to camss-video format check
Add a debug trace to video_check_format() to log both the subdev-reported
format and the format requested by the video node. This makes it easier
to diagnose mismatches between subdev output and the negotiated V4L2
pixel format, as well as issues related to plane count, resolution, or
field settings.

Signed-off-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
2026-05-09 00:22:59 +01:00
Wenmeng Liu
c97e797a64 media: qcom: camss: vfe: fix PIX subdev naming on VFE lite
VFE lite hardware does not provide a functional PIX path, but after
the per sub-device type resource changes the PIX subdev name is still
assigned unconditionally.

Only assign the PIX subdev name on non-lite VFE variants to avoid
exposing a misleading device name.

Fixes: ae44829a4a ("media: qcom: camss: Add per sub-device type resources")
Signed-off-by: Wenmeng Liu <wenmeng.liu@oss.qualcomm.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
2026-05-09 00:22:58 +01:00
Wenmeng Liu
51fe835c48 media: qcom: camss: tpg: Add TPG support for multiple targets
Add support for TPG found on LeMans, Monaco, Hamoa.

Signed-off-by: Wenmeng Liu <wenmeng.liu@oss.qualcomm.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Tested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> # Dell Inpsiron14p
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
2026-05-09 00:22:58 +01:00
Wenmeng Liu
4b14db418b media: qcom: camss: Add link support for TPG
TPG is connected to the csid as an entity, the link
needs to be adapted.

Signed-off-by: Wenmeng Liu <wenmeng.liu@oss.qualcomm.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Tested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> # Dell Inpsiron14p
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
2026-05-09 00:22:58 +01:00
Wenmeng Liu
70b193987c media: qcom: camss: Add common TPG support
Introduce a new common Test Pattern Generator (TPG) implementation for
Qualcomm CAMSS. This module provides a generic interface for pattern
generation that can be reused by multiple platforms.

Unlike CSID-integrated TPG, this TPG acts as a standalone block
that emulates both CSIPHY and sensor behavior, enabling flexible test
patterns without external hardware.

Signed-off-by: Wenmeng Liu <wenmeng.liu@oss.qualcomm.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Tested-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org> # Dell Inpsiron14p
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
2026-05-09 00:22:58 +01:00
Luca Weiss
f1db681090 media: qcom: camss: Add SM6350 support
Add the necessary support for CAMSS on the SM6350 SoC.

Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Luca Weiss <luca.weiss@fairphone.com>
Reviewed-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
2026-05-09 00:22:58 +01:00
Arnd Bergmann
797c1cbf67 media: qcom: camss: avoid format string warning
clang-22 warns about csiphy_match_clock_name() taking a variable format
string that is not checked against the 'int index' argument:

drivers/media/platform/qcom/camss/camss-csiphy.c:566:44: error: diagnostic behavior may be improved by
      adding the 'format(printf, 2, 3)' attribute to the declaration of 'csiphy_match_clock_name'
      [-Werror,-Wmissing-format-attribute]
  561 | static bool csiphy_match_clock_name(const char *clock_name, const char *format,
      | __attribute__((format(printf, 2, 3)))
  562 |                                     int index)
  563 | {
  564 |         char name[16]; /* csiphyXXX_timer\0 */
  565 |
  566 |         snprintf(name, sizeof(name), format, index);
      |                                                   ^
drivers/media/platform/qcom/camss/camss-csiphy.c:561:13: note: 'csiphy_match_clock_name' declared here
  561 | static bool csiphy_match_clock_name(const char *clock_name, const char *format,
      |             ^

Change the function to use a snprintf() style format string that allows this
to be checked at the call site.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
2026-05-09 00:22:58 +01:00
Wenmeng Liu
924f45e58b media: qcom: camss: Add missing clocks for VFE lite on sa8775p
Add missing required clocks (cpas_ahb and camnoc_axi) for VFE lite
instances on sa8775p platform. These clocks are necessary for proper
VFE lite operation:

Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Wenmeng Liu <wenmeng.liu@oss.qualcomm.com>
Fixes: e7b59e1d06 ("media: qcom: camss: Add support for VFE 690")
Cc: stable@vger.kernel.org
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
2026-05-09 00:22:58 +01:00
Wenmeng Liu
27c6817bbc media: qcom: camss: Fix csid clock configuration for sa8775p
Fix the mismatch between clock list and clock rate table for CSID lite
instances. The current implementation has 5 clocks defined but only 2
are actually needed (vfe_lite_csid and vfe_lite_cphy_rx), while the
clock rate table doesn't match this configuration.

Update both clock list and rate table to maintain consistency:
- Remove unused clocks: cpas_vfe_lite, vfe_lite_ahb, vfe_lite
- Update clock rate table to match the remaining two clocks

Signed-off-by: Wenmeng Liu <wenmeng.liu@oss.qualcomm.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Fixes: ed03e99de0 ("media: qcom: camss: Add support for CSID 690")
Cc: stable@vger.kernel.org
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
2026-05-09 00:22:58 +01:00
Wenmeng Liu
817998f863 media: qcom: camss: Fix csid IRQ offset for sa8775p
Fix BUF_DONE_IRQ_STATUS_RDI_OFFSET calculation for csid lite on
sa8775p platform. The offset should be 0 for csid lite on sa8775p,

Signed-off-by: Wenmeng Liu <wenmeng.liu@oss.qualcomm.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Fixes: ed03e99de0 ("media: qcom: camss: Add support for CSID 690")
Cc: stable@vger.kernel.org
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
2026-05-09 00:22:58 +01:00
Wenmeng Liu
2759816f16 media: qcom: camss: add support for SM6150 camss
The camera subsystem for SM6150 which is based on Spectra 230.

For SM6150:
- VFE and CSID version: 170 (vfe170, csid170)
- CSIPHY version: csiphy-v2.0.1 (14nm)

Reviewed-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Signed-off-by: Wenmeng Liu <wenmeng.liu@oss.qualcomm.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2026-01-13 10:25:01 +01:00
Vladimir Zapolskiy
77a2ff40c5 media: qcom: camss: use a handy v4l2_async_nf_add_fwnode_remote() function
Another code simplification makes parsing of remote endpoints easy.

Tested-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
Signed-off-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2026-01-13 10:25:01 +01:00
Vladimir Zapolskiy
eccf5fa8e3 media: qcom: camss: change internals of endpoint parsing to fwnode handling
Since a few called V4L2 functions operate with fwnode arguments the change
from OF device nodes to fwnodes brings a simplification to the code.

The camss_parse_endpoint_node() function is called once by camss_probe(),
and there is no use of knowing a number of asynchronously registered
remote devices, so it makes sense to remove the related computation from
the function.

Tested-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
Signed-off-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2026-01-13 10:25:01 +01:00
Alper Ak
d965919af5 media: qcom: camss: vfe: Fix out-of-bounds access in vfe_isr_reg_update()
vfe_isr() iterates using MSM_VFE_IMAGE_MASTERS_NUM(7) as the loop
bound and passes the index to vfe_isr_reg_update(). However,
vfe->line[] array is defined with VFE_LINE_NUM_MAX(4):

    struct vfe_line line[VFE_LINE_NUM_MAX];

When index is 4, 5, 6, the access to vfe->line[line_id] exceeds
the array bounds and resulting in out-of-bounds memory access.

Fix this by using separate loops for output lines and write masters.

Fixes: 4edc8eae71 ("media: camss: Add initial support for VFE hardware version Titan 480")
Signed-off-by: Alper Ak <alperyasinak1@gmail.com>
Cc: stable@vger.kernel.org
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2026-01-13 10:25:01 +01:00
Loic Poulain
0b61ce8dc4 media: qcom: camss: csid-340: Fix unused variables
The CSID driver has some unused variables and function parameters
that are no longer needed (due to refactoring). Clean up those
unused elements:

- Remove the `vc` parameter from `__csid_configure_rx()`.
- Drop the unused `lane_cnt` variable.
- Adjust call to `__csid_configure_rx()` accordingly.

Signed-off-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2026-01-13 10:25:01 +01:00
Vladimir Zapolskiy
a89e490ba3 media: qcom: camss: Do not enable cpas fast ahb clock for SM8550 VFE lite
The clock is needed to stream images over a full VFE IP on SM8550 CAMSS,
and it should not be enabled, when an image stream is routed over any of
two lite VFE IPs on the SoC.

Signed-off-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Acked-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2026-01-13 10:25:01 +01:00
Wenmeng Liu
17bc0e2882 media: qcom: camss: Add support for regulator init_load_uA in CSIPHY
Some Qualcomm regulators are configured with initial mode as
HPM (High Power Mode), which may lead to higher power consumption.
To reduce power usage, it's preferable to set the initial mode
to LPM (Low Power Mode).

To ensure the regulator can switch from LPM to HPM when needed,
this patch adds current load configuration for CAMSS CSIPHY.
This allows the regulator framework to scale the mode dynamically
based on the load requirement.

The current default value for current is uninitialized or random.
To address this, initial current values are added for the
following platforms:
MSM8916, MSM8939, MSM8953, MSM8996, QCM2290, SDM670, SM8250, SC7280,
SM8550, SM8650, QCS8300, SA8775P and X1E80100.

For SDM660, SDM845, SC8280XP the value is set to 0,
indicating that no default current value is configured,
the other values are derived from the power grid.

Signed-off-by: Wenmeng Liu <wenmeng.liu@oss.qualcomm.com>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2026-01-13 10:25:01 +01:00
Hangxiang Ma
26efe43f2e media: camss: csiphy: Make CSIPHY status macro cross-platform
The current value of '0xb0' that represents the offset to the status
registers within the common registers of the CSIPHY has been changed on
the newer SOCs and it requires generalizing the macro using a new
variable 'common_status_offset'. This variable is initialized in the
csiphy_init() function.

Signed-off-by: Hangxiang Ma <hangxiang.ma@oss.qualcomm.com>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2026-01-13 10:25:00 +01:00
Vincent Knecht
b4fbb13db8 media: qcom: camss: Add support for MSM8939
The camera subsystem for the MSM8939 is the same as MSM8916 except with
3 CSID instead of 2, and some higher clock rates.

As a quirk, this SoC needs writing values to 2 VFE VBIF registers
(see downstream msm8939-camera.dtsi vbif-{regs,settings} properties).
This fixes black stripes across sensor and garbage in CSID TPG outputs.

Add support for the MSM8939 camera subsystem.

Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Vincent Knecht <vincent.knecht@mailoo.org>
Signed-off-by: André Apitzsch <git@apitzsch.eu>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-11-06 12:43:56 +01:00
Vincent Knecht
f0e8ffb46b media: qcom: camss: vfe: Add VBIF setting support
Some devices need writing values to VFE VBIF registers.
Add helper functions to do this.

Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Vincent Knecht <vincent.knecht@mailoo.org>
Signed-off-by: André Apitzsch <git@apitzsch.eu>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-11-06 12:43:56 +01:00
Vladimir Zapolskiy
c33f7e61a1 media: qcom: camss: Add CSIPHY 2.2.0 lane configuration for SM8650
Add a configuration for all CSI lanes into D-PHY bus mode on Qualcomm
SM8650 CAMSS CSIPHY IPs.

Signed-off-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8650-QRD
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-11-06 12:43:56 +01:00
Vladimir Zapolskiy
6a0b9d3f11 media: qcom: camss: Add Qualcomm SM8650 CAMSS support
Add the basic support of CAMSS IP on Qualcomm SM8650 SoC powered boards.

SM8650 CAMSS provides:
- 6 x CSIPHY,
- 3 x CSID, 2 x CSID Lite,
- 3 x VFE, 2 x VFE Lite.

Signed-off-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on SM8650-QRD
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-11-06 12:43:56 +01:00
Hangxiang Ma
ec697196d6 media: qcom: camss: Enable setting the rate to camnoc_rt_axi clock
On hardware architectures where a single CAMNOC module is split into
two, one for each of the real time (RT) and non real time (NRT) modules
within camera sub system, processing VFE output over the AXI bus
requires enabling and setting the appropriate clock rate for the RT
CAMNOC. This change lays the groundwork for supporting such
configurations.

Signed-off-by: Hangxiang Ma <hangxiang.ma@oss.qualcomm.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Reviewed-by: Vijay Kumar Tumati <vijay.tumati@oss.qualcomm.com>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-11-06 12:43:55 +01:00
Hangxiang Ma
d5479f002f media: qcom: camss: Use a macro to specify the initial buffer count
Replace the hardcoded buffer count value with a macro to enable
operating on these buffers elsewhere in the CAMSS driver based on this
count. Some of the hardware architectures require deferring the AUP and
REG update until after the CSID configuration and this macro is expected
to be useful in such scenarios.

Signed-off-by: Hangxiang Ma <hangxiang.ma@oss.qualcomm.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-11-06 12:43:55 +01:00
Johan Hovold
c38d1d7033 media: qcom: camss: drop unused module alias
The driver has never supported anything but OF probing so drop the
unused platform module alias.

Signed-off-by: Johan Hovold <johan@kernel.org>
Reviewed-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-11-06 12:43:55 +01:00
Loic Poulain
94662f560b media: qcom: camss: vfe: Fix BPL alignment for QCM2290
VFE-340 requires 8-byte alignment instead of 16-byte. This adjustment
prevents image corruption/misaligment when padding is needed.

Example: For SRGGB10_1X10/3280x2464, aligned BPL was 4112 instead of 4104

Fixes: 9e89149a19 ("media: qcom: camss: add support for QCM2290 camss")
Signed-off-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-09-24 12:52:09 +02:00
Loic Poulain
76d2d8f7b6 media: qcom: camss: Add missing header bitfield.h
Add the <linux/bitfield.h> header to prevent erros:
>> drivers/media/platform/qcom/camss/camss-vfe-340.c:186:21: error: call to undeclared function 'FIELD_PREP'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     186 |                         if (bus_status & TFE_BUS_IRQ_MASK_RUP_DONE(i))
         |                                          ^
   drivers/media/platform/qcom/camss/camss-vfe-340.c:36:40: note: expanded from macro 'TFE_BUS_IRQ_MASK_RUP_DONE'
      36 | #define         TFE_BUS_IRQ_MASK_RUP_DONE(sc)   FIELD_PREP(TFE_BUS_IRQ_MASK_RUP_DONE_MASK, BIT(sc))
         |                                                 ^
   drivers/media/platform/qcom/camss/camss-vfe-340.c:191:21: error: call to undeclared function 'FIELD_PREP'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
     191 |                         if (bus_status & TFE_BUS_IRQ_MASK_BUF_DONE(i))
         |                                          ^
   drivers/media/platform/qcom/camss/camss-vfe-340.c:38:40: note: expanded from macro 'TFE_BUS_IRQ_MASK_BUF_DONE'
      38 | #define         TFE_BUS_IRQ_MASK_BUF_DONE(sg)   FIELD_PREP(TFE_BUS_IRQ_MASK_BUF_DONE_MASK, BIT(sg))
         |                                                 ^
   2 errors generated.

Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202509100228.xLeeYzpG-lkp@intel.com/
Signed-off-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
Reviewed-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Acked-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-09-10 15:23:43 +02:00
Vladimir Zapolskiy
dcf6fb89e6 media: qcom: camss: remove a check for unavailable CAMSS endpoint
Media endpoints are not devices, and there is no valid or sane usecase,
when an endpoint on the ISP side is an unavailable device.

Signed-off-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Tested-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-09-09 15:59:22 +02:00
Vladimir Zapolskiy
605af91e90 media: qcom: camss: unconditionally set async notifier of subdevices
For sake of simplicity it makes sense to register all CAMSS subdevices
from its async notifier, this will cover all possible use cases, even
if there is no connected sensors to the CAMSS ISP.

Signed-off-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Tested-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-09-09 15:59:22 +02:00
Vladimir Zapolskiy
17ad461622 media: qcom: camss: remove .link_entities callback
There is no potential for a custom .link_entities callback, remove it
by replacing with a common camss_link_entities().

Signed-off-by: Vladimir Zapolskiy <vladimir.zapolskiy@linaro.org>
Tested-by: Loic Poulain <loic.poulain@oss.qualcomm.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
[bod: amended for qcm2290, qcs8300, sa8775p]
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-09-09 15:59:21 +02:00
Vikram Sharma
aefd4d698e media: qcom: camss: Enumerate resources for QCS8300
Enumerate csiphy, csid and vfe resources for qcs8300.

Signed-off-by: Vikram Sharma <quic_vikramsa@quicinc.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-09-09 15:59:21 +02:00
Vikram Sharma
42914692e8 media: qcom: camss: enable vfe 690 for qcs8300
The vfe in qcs8300 is version 690, it is same as vfe used in
lemans(sa8775p). vfe gen3 have support for vfe 690.

Signed-off-by: Vikram Sharma <quic_vikramsa@quicinc.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-09-09 15:59:21 +02:00
Vikram Sharma
950f3d308f media: qcom: camss: enable csid 690 for qcs8300
The CSID in qcs8300 is version 690, it is same as csid used in
lemans(sa8775p). csid gen3 have support for csid 690.

Signed-off-by: Vikram Sharma <quic_vikramsa@quicinc.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-09-09 15:59:21 +02:00
Vikram Sharma
9ca5d17f5e media: qcom: camss: Add CSIPHY support for QCS8300
QCS8300 uses the same CSIPHY hardware version (v1.3.0) as
SA8775P. The only difference between the two platforms is
the number of CSIPHY instances: SA8775P has four, while
QCS8300 has three.

Signed-off-by: Vikram Sharma <quic_vikramsa@quicinc.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-09-09 15:59:21 +02:00
Vikram Sharma
6adf001b67 media: qcom: camss: Add qcs8300 compatible
Add CAMSS_8300 enum, QCS8300 compatible and qcs8300 camss driver
private data, the private data just include some basic information
for now, later changes will enumerate with csiphy, tpg, csid and
vfe resources.

Signed-off-by: Vikram Sharma <quic_vikramsa@quicinc.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-09-09 15:59:21 +02:00
Vikram Sharma
b478527cce media: qcom: camss: Enumerate resources for lemans(sa8775p)
Enumerate csiphy, csid and vfe resources for lemans soc.

Signed-off-by: Vikram Sharma <quic_vikramsa@quicinc.com>
Reviewed-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-09-09 15:59:21 +02:00
Vikram Sharma
e7b59e1d06 media: qcom: camss: Add support for VFE 690
Add support for VFE 690 found on lemans(SA8775P). This is
different from vfe 780 w.r.t few register offsets. It
supports two full and five lite VFE.

Co-developed-by: Suresh Vankadara <quic_svankada@quicinc.com>
Signed-off-by: Suresh Vankadara <quic_svankada@quicinc.com>
Co-developed-by: Wenmeng Liu <quic_wenmliu@quicinc.com>
Signed-off-by: Wenmeng Liu <quic_wenmliu@quicinc.com>
Signed-off-by: Vikram Sharma <quic_vikramsa@quicinc.com>
Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Signed-off-by: Bryan O'Donoghue <bod@kernel.org>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2025-09-09 15:59:21 +02:00