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This check allows to retain the unique adapter name driver has initialized, which platform driver can use to distinguish it from other i2c designware adapters. Tested-by: Randy Dunlap --- drivers/i2c/busses/i2c-designware-master.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/i2c/busses/i2c-designware-master.c b/drivers/i2c/busses/i2c-designware-master.c index c5394229b77f..9d7d9e47564a 100644 --- a/drivers/i2c/busses/i2c-designware-master.c +++ b/drivers/i2c/busses/i2c-designware-master.c @@ -1042,8 +1042,9 @@ int i2c_dw_probe_master(struct dw_i2c_dev *dev) if (ret) return ret; - snprintf(adap->name, sizeof(adap->name), - "Synopsys DesignWare I2C adapter"); + if (!adap->name[0]) + scnprintf(adap->name, sizeof(adap->name), + "Synopsys DesignWare I2C adapter"); adap->retries = 3; adap->algo = &i2c_dw_algo; adap->quirks = &i2c_dw_quirks; From patchwork Fri Jun 6 21:31:40 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Pratap Nirujogi X-Patchwork-Id: 894725 Received: from NAM11-DM6-obe.outbound.protection.outlook.com (mail-dm6nam11on2047.outbound.protection.outlook.com [40.107.223.47]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B7273238C34; 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Add definition of amdisp i2c adapter name in a new header file (include/linux/soc/amd/isp4_misc.h) as it is referred in different driver modules. Tested-by: Randy Dunlap Signed-off-by: Pratap Nirujogi --- drivers/i2c/busses/i2c-designware-amdisp.c | 2 ++ include/linux/soc/amd/isp4_misc.h | 12 ++++++++++++ 2 files changed, 14 insertions(+) create mode 100644 include/linux/soc/amd/isp4_misc.h diff --git a/drivers/i2c/busses/i2c-designware-amdisp.c b/drivers/i2c/busses/i2c-designware-amdisp.c index ad6f08338124..450793d5f839 100644 --- a/drivers/i2c/busses/i2c-designware-amdisp.c +++ b/drivers/i2c/busses/i2c-designware-amdisp.c @@ -8,6 +8,7 @@ #include #include #include +#include #include "i2c-designware-core.h" @@ -62,6 +63,7 @@ static int amd_isp_dw_i2c_plat_probe(struct platform_device *pdev) adap = &isp_i2c_dev->adapter; adap->owner = THIS_MODULE; + scnprintf(adap->name, sizeof(adap->name), AMDISP_I2C_ADAP_NAME); ACPI_COMPANION_SET(&adap->dev, ACPI_COMPANION(&pdev->dev)); adap->dev.of_node = pdev->dev.of_node; /* use dynamically allocated adapter id */ diff --git a/include/linux/soc/amd/isp4_misc.h b/include/linux/soc/amd/isp4_misc.h new file mode 100644 index 000000000000..6738796986a7 --- /dev/null +++ b/include/linux/soc/amd/isp4_misc.h @@ -0,0 +1,12 @@ +// SPDX-License-Identifier: GPL-2.0+ + +/* + * Copyright (C) 2025 Advanced Micro Devices, Inc. + */ + +#ifndef __SOC_ISP4_MISC_H +#define __SOC_ISP4_MISC_H + +#define AMDISP_I2C_ADAP_NAME "AMDISP DesignWare I2C adapter" + +#endif From patchwork Fri Jun 6 21:31:41 2025 Content-Type: text/plain; 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Fixes: 90b85567e457 ("platform/x86: Add AMD ISP platform config for OV05C10") Reported-by: Randy Dunlap Link: https://lore.kernel.org/all/04577a46-9add-420c-b181-29bad582026d@infradead.org Tested-by: Randy Dunlap Signed-off-by: Pratap Nirujogi --- drivers/platform/x86/amd/amd_isp4.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/platform/x86/amd/amd_isp4.c b/drivers/platform/x86/amd/amd_isp4.c index 0cc01441bcbb..9f291aeb35f1 100644 --- a/drivers/platform/x86/amd/amd_isp4.c +++ b/drivers/platform/x86/amd/amd_isp4.c @@ -11,6 +11,7 @@ #include #include #include +#include #include #include #include @@ -151,7 +152,7 @@ MODULE_DEVICE_TABLE(acpi, amdisp_sensor_ids); static inline bool is_isp_i2c_adapter(struct i2c_adapter *adap) { - return !strcmp(adap->owner->name, "i2c_designware_amdisp"); + return !strcmp(adap->name, AMDISP_I2C_ADAP_NAME); } static void instantiate_isp_i2c_client(struct amdisp_platform *isp4_platform,