spi: xlp: Add ACPI support for Vulcan SPI controller
Add ACPI support for SPI controller on Broadcom Vulcan ARM64.
Signed-off-by: Kamlakant Patel <kamlakant.patel@broadcom.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
diff --git a/drivers/spi/spi-xlp.c b/drivers/spi/spi-xlp.c
index 8f04fec..4071a72 100644
--- a/drivers/spi/spi-xlp.c
+++ b/drivers/spi/spi-xlp.c
@@ -11,6 +11,7 @@
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
+#include <linux/acpi.h>
#include <linux/clk.h>
#include <linux/kernel.h>
#include <linux/module.h>
@@ -405,8 +406,9 @@
clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(clk)) {
dev_err(&pdev->dev, "could not get spi clock\n");
- return -ENODEV;
+ return PTR_ERR(clk);
}
+
xspi->spi_clk = clk_get_rate(clk);
master = spi_alloc_master(&pdev->dev, 0);
@@ -437,6 +439,14 @@
return 0;
}
+#ifdef CONFIG_ACPI
+static const struct acpi_device_id xlp_spi_acpi_match[] = {
+ { "BRCM900D", 0 },
+ { },
+};
+MODULE_DEVICE_TABLE(acpi, xlp_spi_acpi_match);
+#endif
+
static const struct of_device_id xlp_spi_dt_id[] = {
{ .compatible = "netlogic,xlp832-spi" },
{ },
@@ -447,6 +457,7 @@
.driver = {
.name = "xlp-spi",
.of_match_table = xlp_spi_dt_id,
+ .acpi_match_table = ACPI_PTR(xlp_spi_acpi_match),
},
};
module_platform_driver(xlp_spi_driver);