Add ov05c i2c boardinfo and GPIO pin info for AMD ISP platform.
Details of the resources added:
- Added i2c bus number for AMD ISP platform is 99.
- Added GPIO 85 to allow ISP driver to enable and disable ISP access.
- Added GPIO 0 to allow sensor driver to enable and disable sensor module.
Signed-off-by: Pratap Nirujogi <pratap.nirujogi@xxxxxxx>
---
drivers/platform/x86/amd/Kconfig | 11 +++++
drivers/platform/x86/amd/Makefile | 1 +
drivers/platform/x86/amd/amd_isp.c | 72 ++++++++++++++++++++++++++++++
3 files changed, 84 insertions(+)
create mode 100644 drivers/platform/x86/amd/amd_isp.c
diff --git a/drivers/platform/x86/amd/Kconfig b/drivers/platform/x86/amd/Kconfig
index c3e086ea64fc..4b373edd750d 100644
--- a/drivers/platform/x86/amd/Kconfig
+++ b/drivers/platform/x86/amd/Kconfig
@@ -32,3 +32,14 @@ config AMD_WBRF
This mechanism will only be activated on platforms that advertise a
need for it.
+
+config AMD_ISP_PLATFORM
+ bool "AMD platform with ISP4 that supports Camera sensor device"
+ depends on I2C && X86_64 && AMD_ISP4
+ help
+ For AMD platform that support Image signal processor generation 4, it
+ is necessary to add platform specific camera sensor module board info
+ which includes the sensor driver device id and the i2c address.
+
+ If you have a AMD platform that support ISP4 and with a sensor
+ connected to it, say Y here
diff --git a/drivers/platform/x86/amd/Makefile b/drivers/platform/x86/amd/Makefile
index 56f62fc9c97b..0d89e2d4f7e6 100644
--- a/drivers/platform/x86/amd/Makefile
+++ b/drivers/platform/x86/amd/Makefile
@@ -10,3 +10,4 @@ obj-$(CONFIG_AMD_PMC) += pmc/
obj-$(CONFIG_AMD_HSMP) += hsmp/
obj-$(CONFIG_AMD_PMF) += pmf/
obj-$(CONFIG_AMD_WBRF) += wbrf.o
+obj-$(CONFIG_AMD_ISP_PLATFORM) += amd_isp.o
diff --git a/drivers/platform/x86/amd/amd_isp.c b/drivers/platform/x86/amd/amd_isp.c
new file mode 100644
index 000000000000..751f209e9509
--- /dev/null
+++ b/drivers/platform/x86/amd/amd_isp.c
@@ -0,0 +1,72 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright 2025 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <linux/init.h>
+#include <linux/i2c.h>
+#include <linux/kernel.h>
+#include <linux/gpio/machine.h>
+
+#define AMDISP_I2C_BUS 99
+
+static struct gpiod_lookup_table isp_gpio_table = {
+ .dev_id = "amd_isp_capture",
+ .table = {
+ GPIO_LOOKUP("AMDI0030:00", 85, "enable_isp", GPIO_ACTIVE_HIGH),
+ { }
+ },
+};
+
+static struct gpiod_lookup_table isp_sensor_gpio_table = {
+ .dev_id = "ov05c",
+ .table = {
+ GPIO_LOOKUP("amdisp-pinctrl", 0, "sensor0_enable", GPIO_ACTIVE_HIGH),
+ { }
+ },
+};
+
+static struct i2c_board_info sensor_info = {
+ .dev_name = "ov05c",
+ I2C_BOARD_INFO("ov05c", 0x10),
+};
+
+static int __init amd_isp_init(void)
+{
+ int ret;
+
+ gpiod_add_lookup_table(&isp_gpio_table);
+ gpiod_add_lookup_table(&isp_sensor_gpio_table);
+
+ ret = i2c_register_board_info(AMDISP_I2C_BUS, &sensor_info, 1);
+ if (ret)
+ pr_err("%s: cannot register i2c board devices:%s",
+ __func__, sensor_info.dev_name);
+
+ return ret;
+}
+
+arch_initcall(amd_isp_init);
+
+MODULE_AUTHOR("Benjamin Chan <benjamin.chan@xxxxxxx>");
+MODULE_AUTHOR("Pratap Nirujogi <pratap.nirujogi@xxxxxxx>");
+MODULE_DESCRIPTION("AMD ISP Platform parameters");
+MODULE_LICENSE("GPL and additional rights");
--
2.43.0
