[PATCH v2] spi: mt65xx: add dual and quad mode for standard spi device

[AngeloGioacchino Del Regno]

Il 17/09/25 07:58, Tim Kuo ha scritto:
> From: "Tim Kuo" <Tim.Kuo at mediatek.com>
> 
> Mediatek SPI hardware natively supports dual and quad modes, and these
> modes are already enabled for SPI flash devices under spi-mem framework
> in MTK SPI controller spi-mt65xx. However, other SPI devices, such as
> touch panels, are limited to single mode because spi-mt65xx lacks SPI
> mode argument parsing from SPI framework for these SPI devices outside
> spi-mem framework.
> 
> This patch adds dual and quad mode support for these SPI devices by
> introducing a new API, mtk_spi_set_nbits, for SPI mode argument parsing.
> 
> Signed-off-by: Tim Kuo <Tim.Kuo at mediatek.com>

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno at collabora.com>