Unverified Commit 81f68479 authored by Geert Uytterhoeven's avatar Geert Uytterhoeven Committed by Mark Brown
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spi: sh-msiof: Fill in controller speed limits 



Fill in the controller speed limits, so the SPI core can use them for
validating SPI transfers, and adjust or reject transfers when needed.

Signed-off-by: default avatarGeert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20210113101916.1147695-3-geert+renesas@glider.be


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 9a133f7b

drivers/spi/spi-sh-msiof.c

+4 −0
Original line number Diff line number Diff line
@@ -1262,6 +1262,7 @@ static int sh_msiof_spi_probe(struct platform_device *pdev) 
	const struct sh_msiof_chipdata *chipdata;

	struct sh_msiof_spi_info *info;

	struct sh_msiof_spi_priv *p;

	unsigned long clksrc;

	int i;

	int ret;
@@ -1337,6 +1338,9 @@ static int sh_msiof_spi_probe(struct platform_device *pdev) 
	/* init controller code */

	ctlr->mode_bits = SPI_CPOL | SPI_CPHA | SPI_CS_HIGH;

	ctlr->mode_bits |= SPI_LSB_FIRST | SPI_3WIRE;

	clksrc = clk_get_rate(p->clk);

	ctlr->min_speed_hz = DIV_ROUND_UP(clksrc, 1024);

	ctlr->max_speed_hz = DIV_ROUND_UP(clksrc, 1 << p->min_div_pow);

	ctlr->flags = chipdata->ctlr_flags;

	ctlr->bus_num = pdev->id;

	ctlr->num_chipselect = p->info->num_chipselect;