From: Conor Dooley Date: Fri, 20 Jun 2025 13:28:24 +0000 (+0100) Subject: spi: microchip-core-qspi: set min_speed_hz during probe X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=76f03ce1c6f22805ecf689b1f3ecfb56582eddd5;p=users%2Fjedix%2Flinux-maple.git 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: Conor Dooley Link: https://patch.msgid.link/20250620-drained-widen-ac311bd5f172@spud Signed-off-by: Mark Brown --- diff --git a/drivers/spi/spi-microchip-core-qspi.c b/drivers/spi/spi-microchip-core-qspi.c index fa828fcaaef2d..111ae6519ff41 100644 --- a/drivers/spi/spi-microchip-core-qspi.c +++ b/drivers/spi/spi-microchip-core-qspi.c @@ -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)