From: Álvaro Fernández Rojas <noltari@gmail.com>
Date: Sun, 8 Jun 2025 15:03:30 +0000 (+0200)
Subject: kernel: add support for DesignWare I2C Platform controller
X-Git-Tag: v24.10.2~36
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=40be479fe35242deb7b366bd5d273606c382826c;p=thirdparty%2Fopenwrt.git

kernel: add support for DesignWare I2C Platform controller

Add kernel package for DesignWare I2C platform controller.
This controller is used on the RP1 SoC found on RPi 5 devices.

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
(cherry picked from commit 84922a1e34f8fafeeebc3e6a25b93b95728c1706)
---

diff --git a/package/kernel/linux/modules/i2c.mk b/package/kernel/linux/modules/i2c.mk
index 3aaf560ea90..70bdaf22ab5 100644
--- a/package/kernel/linux/modules/i2c.mk
+++ b/package/kernel/linux/modules/i2c.mk
@@ -116,17 +116,35 @@ I2C_DWPCI_MODULES:= \
 
 define KernelPackage/i2c-designware-pci
   $(call i2c_defaults,$(I2C_DWPCI_MODULES),59)
-  TITLE:=Synopsys DesignWare PCI
+  TITLE:=Synopsys DesignWare I2C PCI
   DEPENDS:=@PCI_SUPPORT +kmod-i2c-designware-core +kmod-i2c-ccgs-ucsi
 endef
 
 define KernelPackage/i2c-designware-pci/description
- Support for Synopsys DesignWare I2C controller. Only master mode is supported.
+ Support for Synopsys DesignWare I2C PCI controller. Only master mode is
+ supported.
 endef
 
 $(eval $(call KernelPackage,i2c-designware-pci))
 
 
+I2C_DWPLAT_MODULES:= \
+  CONFIG_I2C_DESIGNWARE_PLATFORM:drivers/i2c/busses/i2c-designware-platform
+
+define KernelPackage/i2c-designware-platform
+  $(call i2c_defaults,$(I2C_DWPLAT_MODULES),59)
+  TITLE:=Synopsys DesignWare I2C Platform
+  DEPENDS:=+kmod-i2c-designware-core
+endef
+
+define KernelPackage/i2c-designware-platform/description
+ Support for Synopsys DesignWare I2C Platform controller. Only master mode
+ is supported.
+endef
+
+$(eval $(call KernelPackage,i2c-designware-platform))
+
+
 I2C_GPIO_MODULES:= \
   CONFIG_I2C_GPIO:drivers/i2c/busses/i2c-gpio
 
diff --git a/target/linux/generic/config-6.6 b/target/linux/generic/config-6.6
index 5fc31b37b08..deb58397b5c 100644
--- a/target/linux/generic/config-6.6
+++ b/target/linux/generic/config-6.6
@@ -2460,6 +2460,8 @@ CONFIG_HZ_100=y
 # CONFIG_I2C_DEBUG_BUS is not set
 # CONFIG_I2C_DEBUG_CORE is not set
 # CONFIG_I2C_DEMUX_PINCTRL is not set
+# CONFIG_I2C_DESIGNWARE_AMDPSP is not set
+# CONFIG_I2C_DESIGNWARE_BAYTRAIL is not set
 # CONFIG_I2C_DESIGNWARE_PCI is not set
 # CONFIG_I2C_DESIGNWARE_PLATFORM is not set
 # CONFIG_I2C_DESIGNWARE_SLAVE is not set