{"id":2233268,"url":"http://patchwork.ozlabs.org/api/1.2/patches/2233268/?format=json","web_url":"http://patchwork.ozlabs.org/project/openbmc/patch/20260504-axiado-ax3000-cadence-i2c-support-v1-2-97ed2fdc0b7b@axiado.com/","project":{"id":56,"url":"http://patchwork.ozlabs.org/api/1.2/projects/56/?format=json","name":"OpenBMC development","link_name":"openbmc","list_id":"openbmc.lists.ozlabs.org","list_email":"openbmc@lists.ozlabs.org","web_url":"http://github.com/openbmc/","scm_url":"","webscm_url":"","list_archive_url":"","list_archive_url_format":"","commit_url_format":""},"msgid":"<20260504-axiado-ax3000-cadence-i2c-support-v1-2-97ed2fdc0b7b@axiado.com>","list_archive_url":null,"date":"2026-05-05T06:26:44","name":"[2/2] i2c: cadence: Add support for Axiado AX3000","commit_ref":null,"pull_url":null,"state":"new","archived":false,"hash":"1121e195dddc498ced9619e7a3c986bc742eef4a","submitter":{"id":92316,"url":"http://patchwork.ozlabs.org/api/1.2/people/92316/?format=json","name":"Swark Yang","email":"syang@axiado.com"},"delegate":null,"mbox":"http://patchwork.ozlabs.org/project/openbmc/patch/20260504-axiado-ax3000-cadence-i2c-support-v1-2-97ed2fdc0b7b@axiado.com/mbox/","series":[{"id":502914,"url":"http://patchwork.ozlabs.org/api/1.2/series/502914/?format=json","web_url":"http://patchwork.ozlabs.org/project/openbmc/list/?series=502914","date":"2026-05-05T06:26:43","name":"i2c: cadence: Add support for Axiado AX3000","version":1,"mbox":"http://patchwork.ozlabs.org/series/502914/mbox/"}],"comments":"http://patchwork.ozlabs.org/api/patches/2233268/comments/","check":"pending","checks":"http://patchwork.ozlabs.org/api/patches/2233268/checks/","tags":{},"related":[],"headers":{"Return-Path":"\n ","X-Original-To":["incoming@patchwork.ozlabs.org","openbmc@lists.ozlabs.org"],"Delivered-To":"patchwork-incoming@legolas.ozlabs.org","Authentication-Results":["legolas.ozlabs.org;\n\tdkim=pass (2048-bit key;\n unprotected) header.d=axiado.com header.i=@axiado.com header.a=rsa-sha256\n header.s=selector1 header.b=Q/wh2bEZ;\n\tdkim-atps=neutral","legolas.ozlabs.org;\n spf=pass (sender SPF authorized) smtp.mailfrom=lists.ozlabs.org\n (client-ip=2404:9400:21b9:f100::1; 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This allows the controller to support\nI2C_FUNC_SMBUS_QUICK, enabling features such as bus scanning\nvia quick write commands.\n\nSigned-off-by: Swark Yang \n---\n drivers/i2c/busses/i2c-cadence.c | 10 ++++++++++\n 1 file changed, 10 insertions(+)","diff":"diff --git a/drivers/i2c/busses/i2c-cadence.c b/drivers/i2c/busses/i2c-cadence.c\nindex 0fb728ade92e..8079c045f936 100644\n--- a/drivers/i2c/busses/i2c-cadence.c\n+++ b/drivers/i2c/busses/i2c-cadence.c\n@@ -128,6 +128,7 @@\n #define CDNS_I2C_TIMEOUT_MAX\t0xFF\n \n #define CDNS_I2C_BROKEN_HOLD_BIT\tBIT(0)\n+#define CDNS_I2C_QUIRKS_ENABLE_SMBUS_QUICK_CFG BIT(1)\n #define CDNS_I2C_POLL_US\t100000\n #define CDNS_I2C_POLL_US_ATOMIC\t10\n #define CDNS_I2C_TIMEOUT_US\t500000\n@@ -1175,10 +1176,14 @@ static int cdns_i2c_master_xfer_atomic(struct i2c_adapter *adap, struct i2c_msg\n */\n static u32 cdns_i2c_func(struct i2c_adapter *adap)\n {\n+\tstruct cdns_i2c *id = adap->algo_data;\n \tu32 func = I2C_FUNC_I2C | I2C_FUNC_10BIT_ADDR |\n \t\t\t(I2C_FUNC_SMBUS_EMUL & ~I2C_FUNC_SMBUS_QUICK) |\n \t\t\tI2C_FUNC_SMBUS_BLOCK_DATA;\n \n+\tif (id->quirks & CDNS_I2C_QUIRKS_ENABLE_SMBUS_QUICK_CFG)\n+\t\tfunc |= I2C_FUNC_SMBUS_QUICK;\n+\n #if IS_ENABLED(CONFIG_I2C_SLAVE)\n \tfunc |= I2C_FUNC_SLAVE;\n #endif\n@@ -1442,9 +1447,14 @@ static const struct cdns_platform_data r1p10_i2c_def = {\n \t.quirks = CDNS_I2C_BROKEN_HOLD_BIT,\n };\n \n+static const struct cdns_platform_data ax3000_i2c_def = {\n+\t.quirks = CDNS_I2C_QUIRKS_ENABLE_SMBUS_QUICK_CFG,\n+};\n+\n static const struct of_device_id cdns_i2c_of_match[] = {\n \t{ .compatible = \"cdns,i2c-r1p10\", .data = &r1p10_i2c_def },\n \t{ .compatible = \"cdns,i2c-r1p14\",},\n+\t{ .compatible = \"axiado,ax3000-i2c\", .data = &ax3000_i2c_def },\n \t{ /* end of table */ }\n };\n MODULE_DEVICE_TABLE(of, cdns_i2c_of_match);\n","prefixes":["2/2"]}