Unverified Commit 76f03ce1 authored by Conor Dooley's avatar Conor Dooley Committed by Mark Brown
Browse files

spi: microchip-core-qspi: set min_speed_hz during probe 



The controller's minimum possible bus clock is 1/30 the rate of the
input clock. Naively set the minimum bus clock speed the controller
is capable of during probe, assuming that the rate will never reduce
further.

Signed-off-by: default avatarConor Dooley <conor.dooley@microchip.com>
Link: https://patch.msgid.link/20250620-drained-widen-ac311bd5f172@spud


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 86731a2a

drivers/spi/spi-microchip-core-qspi.c

+1 −0
Original line number Diff line number Diff line
@@ -562,6 +562,7 @@ static int mchp_coreqspi_probe(struct platform_device *pdev) 
	ctlr->mode_bits = SPI_CPOL | SPI_CPHA | SPI_RX_DUAL | SPI_RX_QUAD |

			  SPI_TX_DUAL | SPI_TX_QUAD;

	ctlr->dev.of_node = np;

	ctlr->min_speed_hz = clk_get_rate(qspi->clk) / 30;



	ret = devm_spi_register_controller(&pdev->dev, ctlr);

	if (ret)