spi: spi-fsl-lpspi: Remove num_cs from device struct

This is only used during probe() call, so there is no need to store it
longer than that.

Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Link: https://lore.kernel.org/r/20230705090145.1354663-1-alexander.stein@ew.tq-group.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/spi/spi-fsl-lpspi.c b/drivers/spi/spi-fsl-lpspi.c
index dfdcb69..0a0677f 100644 (file)
--- a/drivers/spi/spi-fsl-lpspi.c
+++ b/drivers/spi/spi-fsl-lpspi.c
@@ -97,7 +97,6 @@ struct fsl_lpspi_data {
        struct clk *clk_ipg;
        struct clk *clk_per;
        bool is_slave;
-       u32 num_cs;
        bool is_only_cs1;
        bool is_first_byte;
 
@@ -825,6 +824,7 @@ static int fsl_lpspi_probe(struct platform_device *pdev)
        struct spi_controller *controller;
        struct resource *res;
        int ret, irq;
+       u32 num_cs;
        u32 temp;
        bool is_slave;
 
@@ -847,8 +847,8 @@ static int fsl_lpspi_probe(struct platform_device *pdev)
        fsl_lpspi->is_only_cs1 = of_property_read_bool((&pdev->dev)->of_node,
                                                "fsl,spi-only-use-cs1-sel");
        if (of_property_read_u32((&pdev->dev)->of_node, "num-cs",
-                                &fsl_lpspi->num_cs))
-               fsl_lpspi->num_cs = 1;
+                                &num_cs))
+               num_cs = 1;
 
        controller->bits_per_word_mask = SPI_BPW_RANGE_MASK(8, 32);
        controller->transfer_one = fsl_lpspi_transfer_one;
@@ -858,7 +858,7 @@ static int fsl_lpspi_probe(struct platform_device *pdev)
        controller->flags = SPI_CONTROLLER_MUST_RX | SPI_CONTROLLER_MUST_TX;
        controller->dev.of_node = pdev->dev.of_node;
        controller->bus_num = pdev->id;
-       controller->num_chipselect = fsl_lpspi->num_cs;
+       controller->num_chipselect = num_cs;
        controller->slave_abort = fsl_lpspi_slave_abort;
        if (!fsl_lpspi->is_slave)
                controller->use_gpio_descriptors = true;