[v5,4/4] soc: imx: imx6sx-gpr: Introduce a GPR driver

Commit Message

Fabio Estevam May 22, 2023, 12:51 p.m. UTC

From: Fabio Estevam <[e-mail]>

The motivation for this imx6sx-gpr driver is to allow describing
the LVDS LDB bridge as a GPR subnode.

Signed-off-by: Fabio Estevam <[e-mail]>
---
Changes since v4:
- None.

 drivers/soc/imx/Makefile     |  1 +
 drivers/soc/imx/imx6sx-gpr.c | 29 +++++++++++++++++++++++++++++
 2 files changed, 30 insertions(+)
 create mode 100644 drivers/soc/imx/imx6sx-gpr.c

Patch

diff --git a/drivers/soc/imx/Makefile b/drivers/soc/imx/Makefile
index a28c44a1f16a..9840d4c41015 100644
--- a/drivers/soc/imx/Makefile
+++ b/drivers/soc/imx/Makefile
@@ -4,6 +4,7 @@  obj-$(CONFIG_ARCH_MXC) += soc-imx.o
 endif
 obj-$(CONFIG_HAVE_IMX_GPC) += gpc.o
 obj-$(CONFIG_IMX_GPCV2_PM_DOMAINS) += gpcv2.o
+obj-$(CONFIG_SOC_IMX6SX) += imx6sx-gpr.o
 obj-$(CONFIG_SOC_IMX8M) += soc-imx8m.o
 obj-$(CONFIG_IMX8M_BLK_CTRL) += imx8m-blk-ctrl.o
 obj-$(CONFIG_IMX8M_BLK_CTRL) += imx8mp-blk-ctrl.o
diff --git a/drivers/soc/imx/imx6sx-gpr.c b/drivers/soc/imx/imx6sx-gpr.c
new file mode 100644
index 000000000000..7684acbe43ff
--- /dev/null
+++ b/drivers/soc/imx/imx6sx-gpr.c
@@ -0,0 +1,29 @@ 
+// SPDX-License-Identifier: GPL-2.0
+
+#include <linux/module.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
+
+static int imx6sx_gpr_probe(struct platform_device *pdev)
+{
+	return devm_of_platform_populate(&pdev->dev);
+}
+
+static const struct of_device_id imx6sx_gpr_ids[] = {
+	{ .compatible = "fsl,imx6sx-iomuxc-gpr" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, imx6sx_gpr_ids);
+
+static struct platform_driver imx6sx_gpr_driver = {
+	.driver = {
+		.name	= "imx6sx_gpr",
+		.of_match_table = imx6sx_gpr_ids,
+	},
+	.probe = imx6sx_gpr_probe,
+};
+module_platform_driver(imx6sx_gpr_driver);
+
+MODULE_AUTHOR("Fabio Estevam <[e-mail]>");
+MODULE_DESCRIPTION("NXP i.MX6SX GPR driver");
+MODULE_LICENSE("GPL");