diff options
Diffstat (limited to 'meta-amd-bsp/recipes-kernel/linux/linux-yocto-5.15/0012-i2c-Introduce-common-module-to-instantiate-CCGx-UCSI.patch')
| -rw-r--r-- | meta-amd-bsp/recipes-kernel/linux/linux-yocto-5.15/0012-i2c-Introduce-common-module-to-instantiate-CCGx-UCSI.patch | 111 |
1 files changed, 111 insertions, 0 deletions
diff --git a/meta-amd-bsp/recipes-kernel/linux/linux-yocto-5.15/0012-i2c-Introduce-common-module-to-instantiate-CCGx-UCSI.patch b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-5.15/0012-i2c-Introduce-common-module-to-instantiate-CCGx-UCSI.patch new file mode 100644 index 00000000..40b58292 --- /dev/null +++ b/meta-amd-bsp/recipes-kernel/linux/linux-yocto-5.15/0012-i2c-Introduce-common-module-to-instantiate-CCGx-UCSI.patch @@ -0,0 +1,111 @@ +From 40b8dca9265d74bcdee961d31e79313474c70661 Mon Sep 17 00:00:00 2001 +From: Andy Shevchenko <andriy.shevchenko@linux.intel.com> +Date: Wed, 5 Jan 2022 16:19:31 +0200 +Subject: [PATCH 12/48] i2c: Introduce common module to instantiate CCGx UCSI + +commit 4ebf4987c0918ec6a08ece8ee745af44af02dee0 upstream + +Introduce a common module to provide an API to instantiate UCSI device +for Cypress CCGx Type-C controller. Individual bus drivers need to select +this one on demand. + +Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> +Signed-off-by: Wolfram Sang <wsa@kernel.org> +Signed-off-by: Zhaolong Zhang <zhaolong.zhang@windriver.com> +--- + drivers/i2c/busses/Kconfig | 7 +++++++ + drivers/i2c/busses/Makefile | 3 +++ + drivers/i2c/busses/i2c-ccgx-ucsi.c | 30 ++++++++++++++++++++++++++++++ + drivers/i2c/busses/i2c-ccgx-ucsi.h | 11 +++++++++++ + 4 files changed, 51 insertions(+) + create mode 100644 drivers/i2c/busses/i2c-ccgx-ucsi.c + create mode 100644 drivers/i2c/busses/i2c-ccgx-ucsi.h + +diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig +index fea403431f22..922ab14143fd 100644 +--- a/drivers/i2c/busses/Kconfig ++++ b/drivers/i2c/busses/Kconfig +@@ -9,6 +9,13 @@ menu "I2C Hardware Bus support" + comment "PC SMBus host controller drivers" + depends on PCI + ++config I2C_CCGX_UCSI ++ tristate ++ help ++ A common module to provide an API to instantiate UCSI device ++ for Cypress CCGx Type-C controller. Individual bus drivers ++ need to select this one on demand. ++ + config I2C_ALI1535 + tristate "ALI 1535" + depends on PCI +diff --git a/drivers/i2c/busses/Makefile b/drivers/i2c/busses/Makefile +index 1336b04f40e2..28e2aa3d3d5c 100644 +--- a/drivers/i2c/busses/Makefile ++++ b/drivers/i2c/busses/Makefile +@@ -6,6 +6,9 @@ + # ACPI drivers + obj-$(CONFIG_I2C_SCMI) += i2c-scmi.o + ++# Auxiliary I2C/SMBus modules ++obj-$(CONFIG_I2C_CCGX_UCSI) += i2c-ccgx-ucsi.o ++ + # PC SMBus host controller drivers + obj-$(CONFIG_I2C_ALI1535) += i2c-ali1535.o + obj-$(CONFIG_I2C_ALI1563) += i2c-ali1563.o +diff --git a/drivers/i2c/busses/i2c-ccgx-ucsi.c b/drivers/i2c/busses/i2c-ccgx-ucsi.c +new file mode 100644 +index 000000000000..092dc92dea9f +--- /dev/null ++++ b/drivers/i2c/busses/i2c-ccgx-ucsi.c +@@ -0,0 +1,30 @@ ++// SPDX-License-Identifier: GPL-2.0-or-later ++/* ++ * Instantiate UCSI device for Cypress CCGx Type-C controller. ++ * Derived from i2c-designware-pcidrv.c and i2c-nvidia-gpu.c. ++ */ ++ ++#include <linux/i2c.h> ++#include <linux/export.h> ++#include <linux/module.h> ++#include <linux/string.h> ++ ++#include "i2c-ccgx-ucsi.h" ++ ++struct software_node; ++ ++struct i2c_client *i2c_new_ccgx_ucsi(struct i2c_adapter *adapter, int irq, ++ const struct software_node *swnode) ++{ ++ struct i2c_board_info info = {}; ++ ++ strscpy(info.type, "ccgx-ucsi", sizeof(info.type)); ++ info.addr = 0x08; ++ info.irq = irq; ++ info.swnode = swnode; ++ ++ return i2c_new_client_device(adapter, &info); ++} ++EXPORT_SYMBOL_GPL(i2c_new_ccgx_ucsi); ++ ++MODULE_LICENSE("GPL"); +diff --git a/drivers/i2c/busses/i2c-ccgx-ucsi.h b/drivers/i2c/busses/i2c-ccgx-ucsi.h +new file mode 100644 +index 000000000000..739ac7a4b117 +--- /dev/null ++++ b/drivers/i2c/busses/i2c-ccgx-ucsi.h +@@ -0,0 +1,11 @@ ++/* SPDX-License-Identifier: GPL-2.0-or-later */ ++#ifndef __I2C_CCGX_UCSI_H_ ++#define __I2C_CCGX_UCSI_H_ ++ ++struct i2c_adapter; ++struct i2c_client; ++struct software_node; ++ ++struct i2c_client *i2c_new_ccgx_ucsi(struct i2c_adapter *adapter, int irq, ++ const struct software_node *swnode); ++#endif /* __I2C_CCGX_UCSI_H_ */ +-- +2.27.0 + |