spi: xlp: Remove Netlogic XLP variants

Netlogic XLP was removed in commit 95b8a5e0 ("MIPS: Remove NETLOGIC
support"). With those gone, the single platform left to support is
Cavium ThunderX2. Remove the Netlogic variant and DT support.

For simplicity, the existing kconfig name is retained.

Cc: Mark Brown <broonie@kernel.org>
Cc: linux-spi@vger.kernel.org
Signed-off-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20211109161325.2203564-1-robh@kernel.orgSigned-off-by: Mark Brown <broonie@kernel.org>

drivers/spi/Kconfig

@@ -974,14 +974,13 @@ config SPI_XILINX
 	  Or for the DS570, see "XPS Serial Peripheral Interface (SPI) (v2.00b)"
 
 config SPI_XLP
-	tristate "Netlogic XLP SPI controller driver"
-	depends on CPU_XLP || ARCH_THUNDER2 || COMPILE_TEST
+	tristate "Cavium ThunderX2 SPI controller driver"
+	depends on ARCH_THUNDER2 || COMPILE_TEST
 	help
-	  Enable support for the SPI controller on the Netlogic XLP SoCs.
-	  Currently supported XLP variants are XLP8XX, XLP3XX, XLP2XX, XLP9XX
-	  and XLP5XX.
+	  Enable support for the SPI controller on the Cavium ThunderX2.
+	  (Originally on Netlogic XLP SoCs.)
 
-	  If you have a Netlogic XLP platform say Y here.
+	  If you have a Cavium ThunderX2 platform say Y here.
 	  If unsure, say N.
 
 config SPI_XTENSA_XTFPGA

drivers/spi/spi-xlp.c

@@ -9,7 +9,6 @@
 #include <linux/module.h>
 #include <linux/platform_device.h>
 #include <linux/spi/spi.h>
-#include <linux/of.h>
 #include <linux/interrupt.h>
 
 /* SPI Configuration Register */
@@ -436,17 +435,10 @@ static const struct acpi_device_id xlp_spi_acpi_match[] = {
 MODULE_DEVICE_TABLE(acpi, xlp_spi_acpi_match);
 #endif
 
-static const struct of_device_id xlp_spi_dt_id[] = {
-	{ .compatible = "netlogic,xlp832-spi" },
-	{ },
-};
-MODULE_DEVICE_TABLE(of, xlp_spi_dt_id);
-
 static struct platform_driver xlp_spi_driver = {
 	.probe	= xlp_spi_probe,
 	.driver = {
 		.name	= "xlp-spi",
-		.of_match_table = xlp_spi_dt_id,
 		.acpi_match_table = ACPI_PTR(xlp_spi_acpi_match),
 	},
 };