spi: spi-mt65xx: Add support for MT6991 Dimensity 9400 SPI IPM

Add support for the SPI IPM controller found in the MediaTek
Dimensity 9400 (MT6991) SoC. As a note, this is the same SPI
IPM Controller IP found on the MT8196 Kompanio counterpart.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://patch.msgid.link/20250611110747.458090-2-angelogioacchino.delregno@collabora.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/spi/spi-mt65xx.c b/drivers/spi/spi-mt65xx.c
index 4b0a1c0db04144e1703ba07c3ca4ab216dd55cc5..a6032d44771bfdc4b063f91f8aa7ff99e830af30 100644 (file)
--- a/drivers/spi/spi-mt65xx.c
+++ b/drivers/spi/spi-mt65xx.c
@@ -220,6 +220,14 @@ static const struct mtk_spi_compatible mt6893_compat = {
        .no_need_unprepare = true,
 };
 
+static const struct mtk_spi_compatible mt6991_compat = {
+       .need_pad_sel = true,
+       .must_tx = true,
+       .enhance_timing = true,
+       .dma_ext = true,
+       .ipm_design = true,
+};
+
 /*
  * A piece of default chip info unless the platform
  * supplies it.
@@ -245,6 +253,9 @@ static const struct of_device_id mtk_spi_of_match[] = {
        { .compatible = "mediatek,mt6765-spi",
                .data = (void *)&mt6765_compat,
        },
+       { .compatible = "mediatek,mt6991-spi",
+               .data = (void *)&mt6991_compat,
+       },
        { .compatible = "mediatek,mt7622-spi",
                .data = (void *)&mt7622_compat,
        },