spi: rockchip: Fix error in getting num-cs property

[ Upstream commit 9382df0a98aad5bbcd4d634790305a1d786ad224 ]

Get num-cs u32 from dts of_node property rather than u16.

Signed-off-by: Jon Lin <jon.lin@rock-chips.com>
Link: https://lore.kernel.org/r/20220216014028.8123-2-jon.lin@rock-chips.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>

diff --git a/drivers/spi/spi-rockchip.c b/drivers/spi/spi-rockchip.c
index 553b6b9..4f65ba3 100644 (file)
--- a/drivers/spi/spi-rockchip.c
+++ b/drivers/spi/spi-rockchip.c
@@ -654,7 +654,7 @@ static int rockchip_spi_probe(struct platform_device *pdev)
        struct spi_controller *ctlr;
        struct resource *mem;
        struct device_node *np = pdev->dev.of_node;
-       u32 rsd_nsecs;
+       u32 rsd_nsecs, num_cs;
        bool slave_mode;
 
        slave_mode = of_property_read_bool(np, "spi-slave");
@@ -764,8 +764,9 @@ static int rockchip_spi_probe(struct platform_device *pdev)
                 * rk spi0 has two native cs, spi1..5 one cs only
                 * if num-cs is missing in the dts, default to 1
                 */
-               if (of_property_read_u16(np, "num-cs", &ctlr->num_chipselect))
-                       ctlr->num_chipselect = 1;
+               if (of_property_read_u32(np, "num-cs", &num_cs))
+                       num_cs = 1;
+               ctlr->num_chipselect = num_cs;
                ctlr->use_gpio_descriptors = true;
        }
        ctlr->dev.of_node = pdev->dev.of_node;