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    Subject[PATCH v8 1/2] drm/msm/disp/dpu1: add inline function to validate format support
    Date
    Check if the dpu format is supported or not using dpu_find_format.

    Co-developed-by: Kalyan Thota <quic_kalyant@quicinc.com>
    Signed-off-by: Kalyan Thota <quic_kalyant@quicinc.com>
    Signed-off-by: Vinod Polimera <quic_vpolimer@quicinc.com>
    ---
    drivers/gpu/drm/msm/disp/dpu1/dpu_formats.h | 22 ++++++++++++++++++++++
    drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c | 10 +++-------
    2 files changed, 25 insertions(+), 7 deletions(-)

    diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_formats.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_formats.h
    index 418f5ae..84b8b32 100644
    --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_formats.h
    +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_formats.h
    @@ -21,6 +21,28 @@ const struct dpu_format *dpu_get_dpu_format_ext(
    #define dpu_get_dpu_format(f) dpu_get_dpu_format_ext(f, 0)

    /**
    + * dpu_find_format - validate if the pixel format is supported
    + * @format: dpu format
    + * @supported_formats: supported formats by dpu HW
    + * @num_formatss: total number of formats
    + *
    + * Return: false if not valid format, true on success
    + */
    +static inline bool dpu_find_format(u32 format, const u32 *supported_formats,
    + size_t num_formats)
    +{
    + int i;
    +
    + for (i = 0; i < num_formats; i++) {
    + /* check for valid formats supported */
    + if (format == supported_formats[i])
    + return true;
    + }
    +
    + return false;
    +}
    +
    +/**
    * dpu_get_msm_format - get an dpu_format by its msm_format base
    * callback function registers with the msm_kms layer
    * @kms: kms driver
    diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
    index 6565682..3216cda 100644
    --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
    +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
    @@ -1411,13 +1411,9 @@ static bool dpu_plane_format_mod_supported(struct drm_plane *plane,
    if (modifier == DRM_FORMAT_MOD_LINEAR)
    return true;

    - if (modifier == DRM_FORMAT_MOD_QCOM_COMPRESSED) {
    - int i;
    - for (i = 0; i < ARRAY_SIZE(qcom_compressed_supported_formats); i++) {
    - if (format == qcom_compressed_supported_formats[i])
    - return true;
    - }
    - }
    + if (modifier == DRM_FORMAT_MOD_QCOM_COMPRESSED)
    + return dpu_find_format(format, qcom_compressed_supported_formats,
    + ARRAY_SIZE(qcom_compressed_supported_formats));

    return false;
    }
    --
    2.7.4
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