pinctrl: sh-pfc: r8a7790: Add QSPI pin groups
A QSPI function set consists of 3 groups:
- qspi_ctrl (2 control wires)
- qspi_data2 (2 data wires, for Single/Dual SPI)
- qspi_data4 (4 data wires, for Quad SPI)
Signed-off-by: Geert Uytterhoeven <geert+renesas@linux-m68k.org>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
(cherry picked from commit
202909cdf117743bdbf8abc0f817950c8955c8cf)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>