[PATCH v23 08/15] media: qcom: camss: csiphy: Add support for v2.4.0 two-phase CSIPHY
Vladimir Zapolskiy
vz at kernel.org
Fri Oct 30 10:01:17 PDT 2026
Hello Hangxiang.
On 10/28/26 17:20, Hangxiang Ma wrote:
> Add support for the v2.4.0 two-phase CSIPHY found on Kaanapali, where
> the PHY is driven by the standalone phy-qcom-mipi-csi2 DPHY driver
> rather than by CAMSS. Add the mipi_csi2_dphy_3nm_kaanapali configuration,
> which reuses the x1e80100 lane sequence, clocks and supplies but selects
> the v2.4.0 common status offset, adds Kaanapali power domain and register
> the "qcom,kaanapali-csi2-phy" compatible.
>
> Reviewed-by: Bryan O'Donoghue <bryan.odonoghue at linaro.org>
> Signed-off-by: Hangxiang Ma <hangxiang.ma at oss.qualcomm.com>
> ---
> drivers/media/platform/qcom/camss/camss.c | 47 +++++++++++++++++++++++++++++++
> 1 file changed, 47 insertions(+)
>
> diff --git a/drivers/media/platform/qcom/camss/camss.c b/drivers/media/platform/qcom/camss/camss.c
> index a64242c66cf0..b0b63dd3d958 100644
> --- a/drivers/media/platform/qcom/camss/camss.c
> +++ b/drivers/media/platform/qcom/camss/camss.c
> @@ -38,6 +38,51 @@
>
> static const struct parent_dev_ops vfe_parent_dev_ops;
>
> +static const struct camss_subdev_resources csiphy_res_kaanapali[] = {
> + /* CSIPHY0 */
> + {
> + .csiphy = {
> + .id = 0,
> + .formats = &csiphy_formats_sdm845
> + },
> + },
It makes no sense to bloat the code for no good reason, especially if
these empty tables are to be added for every new supported platform.
CSIPHYs is not a part of the CAMSS on this platform, hence resources
shall not be statically allocated for CSIPHYs in the CAMSS driver.
See also https://lore.kernel.org/linux-arm-msm/20261026224957.1115370-1-vz@kernel.org
--
Best wishes,
Vladimir
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