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Thu, 01 May 2025 23:20:49 -0700 (PDT) Received: from [192.168.1.28] ([178.197.207.88]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3a099b17748sm1159725f8f.100.2025.05.01.23.20.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 01 May 2025 23:20:48 -0700 (PDT) From: Krzysztof Kozlowski Date: Fri, 02 May 2025 08:20:33 +0200 Subject: [PATCH v3 1/5] cdx: Enable compile testing Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250502-cdx-clean-v3-1-6aaa5b369fc5@linaro.org> References: <20250502-cdx-clean-v3-0-6aaa5b369fc5@linaro.org> In-Reply-To: <20250502-cdx-clean-v3-0-6aaa5b369fc5@linaro.org> To: Nipun Gupta , Nikhil Agarwal Cc: linux-kernel@vger.kernel.org, Krzysztof Kozlowski X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1370; i=krzysztof.kozlowski@linaro.org; h=from:subject:message-id; bh=VdScxxYwI0VoeKxBPwPGQrsVDAAxzP9pATm4OBb3UnM=; b=owEBbQKS/ZANAwAKAcE3ZuaGi4PXAcsmYgBoFGQ4xmSJ5DnFskyfsz+kQm4iSkoeiKoiN4A+y ALFI6qacJyJAjMEAAEKAB0WIQTd0mIoPREbIztuuKjBN2bmhouD1wUCaBRkOAAKCRDBN2bmhouD 19NOEACIyFZf3ofGKuhT9fDzRyYIZA3u+MBIO1Q1vFMCGkg2klurVwBGqrW1+WIDCYT1Xyvn7F1 dZe71LWR7zggZaYG1xt3M/Prt9MMTHtGVMt295DY8vC9zI89JiYsKx8OcwOZ8u7I/6IsHlVV/or YHrjr5cWnXFNiECJ9ujfPoj51FSb6HsLo7bPKlMS3+8at2aognrMpcz8OuEgPg0g2SBcauIzXl1 BJ8cSn2JdlL1bhUCCDQ6tsM40LMMhEjhcv1lL4Qgu7avL0w3y3YdexXAaXRDOU+1L8eJOYs57uz JpUYxf3ab0tlNqxUU4xpzoAIMakrEEzdI4lApfxaT+fIrSP7d7tIx+U5bgBLuv9SI/GZZxjjvhG BB5K1t5tJD2L5eXktYDmxEa4m5diMOOyZ/FUtS2rtko1TiW9lngoEdN1xySR/hBxbnWlcq9ikWz 78f6I2VacrSSbffCwVeumyZEqbaCAaQbf0oIj0dWA1Y+J8UveBSHwLjlTQQ7hK99FrCfm7e8VO9 rtp7d5KQ7NgVFYperfDViO2PH9036WiRXoMDG51peOo5bFTGuAvzupUvDYEUnIuMwt48okzeFpP hqrsVYlF+zndA4KmcmPaKKQ1TfNzfdsMGy9urXPaW6F8w1TGQAiK7MqXoglyLOwV8UQHitf0EmF QTdbXRF5rrwPRNA== X-Developer-Key: i=krzysztof.kozlowski@linaro.org; a=openpgp; fpr=9BD07E0E0C51F8D59677B7541B93437D3B41629B There is no code limited to ARM64 or OF/Devicetree in the CDX bus driver, so CDX_BUS can be compile tested on all platforms. CDX_CONTROLLER on the other hand selects REMOTEPROC which depends on HAS_DMA, so add that dependency for compile testing. Signed-off-by: Krzysztof Kozlowski --- drivers/cdx/Kconfig | 2 +- drivers/cdx/controller/Kconfig | 1 + 2 files changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/cdx/Kconfig b/drivers/cdx/Kconfig index a08958485e316a1a3e00390d90c7a9eaa518d0e8..1f1e360507d7d5c33671c601534= e82f2d4de0424 100644 --- a/drivers/cdx/Kconfig +++ b/drivers/cdx/Kconfig @@ -7,7 +7,7 @@ =20 config CDX_BUS bool "CDX Bus driver" - depends on OF && ARM64 + depends on OF && ARM64 || COMPILE_TEST help Driver to enable Composable DMA Transfer(CDX) Bus. 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Thu, 01 May 2025 23:20:50 -0700 (PDT) Received: from [192.168.1.28] ([178.197.207.88]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3a099b17748sm1159725f8f.100.2025.05.01.23.20.49 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 01 May 2025 23:20:49 -0700 (PDT) From: Krzysztof Kozlowski Date: Fri, 02 May 2025 08:20:34 +0200 Subject: [PATCH v3 2/5] cdx: controller: Simplify with dev_err_probe() Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250502-cdx-clean-v3-2-6aaa5b369fc5@linaro.org> References: <20250502-cdx-clean-v3-0-6aaa5b369fc5@linaro.org> In-Reply-To: <20250502-cdx-clean-v3-0-6aaa5b369fc5@linaro.org> To: Nipun Gupta , Nikhil Agarwal Cc: linux-kernel@vger.kernel.org, Krzysztof Kozlowski X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1199; i=krzysztof.kozlowski@linaro.org; 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Signed-off-by: Krzysztof Kozlowski --- drivers/cdx/controller/cdx_controller.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/cdx/controller/cdx_controller.c b/drivers/cdx/controll= er/cdx_controller.c index d623f9c7517a86c06082c0db348688e7f33b7be6..3df35833f0e0a994af0606eee0d= c1dfc9c7c22f9 100644 --- a/drivers/cdx/controller/cdx_controller.c +++ b/drivers/cdx/controller/cdx_controller.c @@ -195,15 +195,13 @@ static int xlnx_cdx_probe(struct platform_device *pde= v) /* Create MSI domain */ cdx->msi_domain =3D cdx_msi_domain_init(&pdev->dev); if (!cdx->msi_domain) { - dev_err(&pdev->dev, "cdx_msi_domain_init() failed"); - ret =3D -ENODEV; + ret =3D dev_err_probe(&pdev->dev, -ENODEV, "cdx_msi_domain_init() failed= "); goto cdx_msi_fail; } =20 ret =3D cdx_setup_rpmsg(pdev); if (ret) { - if (ret !=3D -EPROBE_DEFER) - dev_err(&pdev->dev, "Failed to register CDX RPMsg transport\n"); + dev_err_probe(&pdev->dev, ret, "Failed to register CDX RPMsg transport\n= "); 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Thu, 01 May 2025 23:20:51 -0700 (PDT) Received: from [192.168.1.28] ([178.197.207.88]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3a099b17748sm1159725f8f.100.2025.05.01.23.20.50 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 01 May 2025 23:20:50 -0700 (PDT) From: Krzysztof Kozlowski Date: Fri, 02 May 2025 08:20:35 +0200 Subject: [PATCH v3 3/5] cdx: controller: Drop useless probe success message Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250502-cdx-clean-v3-3-6aaa5b369fc5@linaro.org> References: <20250502-cdx-clean-v3-0-6aaa5b369fc5@linaro.org> In-Reply-To: <20250502-cdx-clean-v3-0-6aaa5b369fc5@linaro.org> To: Nipun Gupta , Nikhil Agarwal Cc: linux-kernel@vger.kernel.org, Krzysztof Kozlowski X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=920; i=krzysztof.kozlowski@linaro.org; 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Printing "hey I probed" is not useful and kernel already gives mechanism to investigate that (e.g. sysfs, tracing, initcall debug). Signed-off-by: Krzysztof Kozlowski --- drivers/cdx/controller/cdx_controller.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/cdx/controller/cdx_controller.c b/drivers/cdx/controll= er/cdx_controller.c index 3df35833f0e0a994af0606eee0dc1dfc9c7c22f9..fce90926d3378ae60166426cbf8= e4a4fe014af86 100644 --- a/drivers/cdx/controller/cdx_controller.c +++ b/drivers/cdx/controller/cdx_controller.c @@ -205,7 +205,6 @@ static int xlnx_cdx_probe(struct platform_device *pdev) goto cdx_rpmsg_fail; } =20 - dev_info(&pdev->dev, "Successfully registered CDX controller with RPMsg a= s transport\n"); return 0; =20 cdx_rpmsg_fail: --=20 2.45.2 From nobody Sat Feb 7 08:53:53 2026 Received: from mail-wm1-f46.google.com (mail-wm1-f46.google.com [209.85.128.46]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id A8B47223706 for ; Fri, 2 May 2025 06:20:54 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; 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Thu, 01 May 2025 23:20:52 -0700 (PDT) Received: from [192.168.1.28] ([178.197.207.88]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3a099b17748sm1159725f8f.100.2025.05.01.23.20.51 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 01 May 2025 23:20:52 -0700 (PDT) From: Krzysztof Kozlowski Date: Fri, 02 May 2025 08:20:36 +0200 Subject: [PATCH v3 4/5] cdx: controller: Do not open-code module_platform_driver() Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250502-cdx-clean-v3-4-6aaa5b369fc5@linaro.org> References: <20250502-cdx-clean-v3-0-6aaa5b369fc5@linaro.org> In-Reply-To: <20250502-cdx-clean-v3-0-6aaa5b369fc5@linaro.org> To: Nipun Gupta , Nikhil Agarwal Cc: linux-kernel@vger.kernel.org, Krzysztof Kozlowski X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1226; i=krzysztof.kozlowski@linaro.org; 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Signed-off-by: Krzysztof Kozlowski --- drivers/cdx/controller/cdx_controller.c | 19 +------------------ 1 file changed, 1 insertion(+), 18 deletions(-) diff --git a/drivers/cdx/controller/cdx_controller.c b/drivers/cdx/controll= er/cdx_controller.c index fce90926d3378ae60166426cbf8e4a4fe014af86..bfb5ac2d861f2708214ae28922a= 7c0cfdcdf5cc6 100644 --- a/drivers/cdx/controller/cdx_controller.c +++ b/drivers/cdx/controller/cdx_controller.c @@ -250,24 +250,7 @@ static struct platform_driver cdx_pdriver =3D { .remove =3D xlnx_cdx_remove, }; =20 -static int __init cdx_controller_init(void) -{ - int ret; - - ret =3D platform_driver_register(&cdx_pdriver); - if (ret) - pr_err("platform_driver_register() failed: %d\n", ret); - - return ret; -} - -static void __exit cdx_controller_exit(void) -{ - platform_driver_unregister(&cdx_pdriver); -} - -module_init(cdx_controller_init); -module_exit(cdx_controller_exit); +module_platform_driver(cdx_pdriver); =20 MODULE_AUTHOR("AMD Inc."); MODULE_DESCRIPTION("CDX controller for AMD devices"); 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Thu, 01 May 2025 23:20:54 -0700 (PDT) Received: from [192.168.1.28] ([178.197.207.88]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-3a099b17748sm1159725f8f.100.2025.05.01.23.20.52 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 01 May 2025 23:20:53 -0700 (PDT) From: Krzysztof Kozlowski Date: Fri, 02 May 2025 08:20:37 +0200 Subject: [PATCH v3 5/5] cdx: controller: Drop unneeded driver.pm NULL assignment Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250502-cdx-clean-v3-5-6aaa5b369fc5@linaro.org> References: <20250502-cdx-clean-v3-0-6aaa5b369fc5@linaro.org> In-Reply-To: <20250502-cdx-clean-v3-0-6aaa5b369fc5@linaro.org> To: Nipun Gupta , Nikhil Agarwal Cc: linux-kernel@vger.kernel.org, Krzysztof Kozlowski X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=819; i=krzysztof.kozlowski@linaro.org; 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Signed-off-by: Krzysztof Kozlowski --- drivers/cdx/controller/cdx_controller.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/cdx/controller/cdx_controller.c b/drivers/cdx/controll= er/cdx_controller.c index bfb5ac2d861f2708214ae28922a7c0cfdcdf5cc6..fca83141e3e66e68e6916077833= db2b7d816395f 100644 --- a/drivers/cdx/controller/cdx_controller.c +++ b/drivers/cdx/controller/cdx_controller.c @@ -243,7 +243,6 @@ MODULE_DEVICE_TABLE(of, cdx_match_table); static struct platform_driver cdx_pdriver =3D { .driver =3D { .name =3D "cdx-controller", - .pm =3D NULL, .of_match_table =3D cdx_match_table, }, .probe =3D xlnx_cdx_probe, --=20 2.45.2