From: James Clark Date: Thu, 28 Aug 2025 10:14:47 +0000 (+0100) Subject: spi: spi-fsl-lpspi: Parameterize reading num-cs from hardware X-Git-Tag: v6.17-rc5~10^2~1^2~1 X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=41c91c2eed83cb93781078108077b7e34f867fc2;p=thirdparty%2Flinux.git spi: spi-fsl-lpspi: Parameterize reading num-cs from hardware Add query_hw_for_num_cs in devtype to avoid directly checking compatible string "fsl,imx93-spi". No functionality change. Signed-off-by: James Clark Reviewed-by: Frank Li Link: https://patch.msgid.link/20250828-james-nxp-lpspi-v2-8-6262b9aa9be4@linaro.org Signed-off-by: Mark Brown --- diff --git a/drivers/spi/spi-fsl-lpspi.c b/drivers/spi/spi-fsl-lpspi.c index ea25e8dab0a40..ce347cdbb009c 100644 --- a/drivers/spi/spi-fsl-lpspi.c +++ b/drivers/spi/spi-fsl-lpspi.c @@ -87,6 +87,7 @@ struct fsl_lpspi_devtype_data { u8 prescale_max : 3; /* 0 == no limit */ + bool query_hw_for_num_cs : 1; }; struct lpspi_config { @@ -137,6 +138,7 @@ struct fsl_lpspi_data { */ static const struct fsl_lpspi_devtype_data imx93_lpspi_devtype_data = { .prescale_max = 1, + .query_hw_for_num_cs = true, }; static const struct fsl_lpspi_devtype_data imx7ulp_lpspi_devtype_data = { @@ -932,7 +934,7 @@ static int fsl_lpspi_probe(struct platform_device *pdev) fsl_lpspi->rxfifosize = 1 << ((temp >> 8) & 0x0f); if (of_property_read_u32((&pdev->dev)->of_node, "num-cs", &num_cs)) { - if (of_device_is_compatible(pdev->dev.of_node, "fsl,imx93-spi")) + if (devtype_data->query_hw_for_num_cs) num_cs = ((temp >> 16) & 0xf); else num_cs = 1;