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spi: rspi: Increase bit rate range for RSPI on SH
authorGeert Uytterhoeven <geert+renesas@glider.be>
Wed, 19 Aug 2020 12:59:01 +0000 (14:59 +0200)
committerMark Brown <broonie@kernel.org>
Thu, 20 Aug 2020 21:38:14 +0000 (22:38 +0100)
commit4e71d926abbe9ec23415f2ec8685a7bc26c1ceed
tree29745f0c23ef7a03d7664f2deb53578511bd4967
parentfeace90233a8cd44a18902216657279c3932d471
spi: rspi: Increase bit rate range for RSPI on SH

Increase bit rate range for RSPI on legacy SH by making use of the Bit
Rate Frequency Division Setting field in Command Registers, just like is
already done on RZ/A.  This decreases the lower limit by a factor of 8.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20200819125904.20938-5-geert+renesas@glider.be
Signed-off-by: Mark Brown <broonie@kernel.org>
drivers/spi/spi-rspi.c