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[34.77.178.169]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-439b0367533sm97690395e9.27.2025.02.24.00.01.29 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 24 Feb 2025 00:01:29 -0800 (PST) From: Tudor Ambarus Subject: [PATCH 0/3] firmware: samsung: add ACPM debugfs support Date: Mon, 24 Feb 2025 08:01:21 +0000 Message-Id: <20250224-acpm-debugfs-v1-0-2418a3ea1b17@linaro.org> 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: 7bit X-B4-Tracking: v=1; b=H4sIAFEnvGcC/6tWKk4tykwtVrJSqFYqSi3LLM7MzwNyDHUUlJIzE vPSU3UzU4B8JSMDI1MDIyND3cTkglzdlNSk0vS0Yt0UQ0uzFAOLVDMTMyMloJaCotS0zAqwcdG xtbUA9QyMw14AAAA= To: Krzysztof Kozlowski , Alim Akhtar Cc: andre.draszik@linaro.org, peter.griffin@linaro.org, willmcvicker@google.com, kernel-team@android.com, linux-kernel@vger.kernel.org, linux-samsung-soc@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Tudor Ambarus X-Mailer: b4 0.14.1 X-Developer-Signature: v=1; a=ed25519-sha256; t=1740384089; l=1478; i=tudor.ambarus@linaro.org; s=20241212; h=from:subject:message-id; bh=oRQzRk5xTUcaDM5dqPMGTeTs7TwHysSopVPkeUpXl7I=; b=1GPC+AlVrtrDlXyCWt4XXvvUJ+mIw/T4ANo17j4HAMMd79u31gNY//b6q4lBP2v9rVAu+EB+W OQODBr0ljjYAzDnslBcQAMWVTXD5G4t+vNS28bvHbt8GTSFQI3av81S X-Developer-Key: i=tudor.ambarus@linaro.org; a=ed25519; pk=uQzE0NXo3dIjeowMTOPCpIiPHEz12IA/MbyzrZVh9WI= The ACPM firmware saves debug information to SRAM. Add debugfs entries in order to expose the ACPM logs. acpm_framework/logb_gprio_level controls the ACPM print verbosity to the SRAM log buffer. It encodes a 64 bit value, 4 bits for each of the 16 Plugin IDs, with verbosity levels from 0xf (log error) to 0x0 (log debug). acpm_framework/log_level has a maximum value of 2 and controls which SRAM log buffers are printed. Finally, acpm_framework/acpm_debug_cmd provides a way to issue ACPM DEBUG commands to the firmware. Add ACPM debugfs support with the above capabilities. Signed-off-by: Tudor Ambarus --- Tudor Ambarus (3): firmware: exynos-acpm: rename exynos-acpm.h to exynos-acpm-xfer.h firmware: exynos-acpm: move common structures to exynos-acpm.h firmware: samsung: add ACPM debugfs support drivers/firmware/samsung/Makefile | 1 + drivers/firmware/samsung/exynos-acpm-debugfs.c | 359 +++++++++++++++++++++++++ drivers/firmware/samsung/exynos-acpm-pmic.c | 2 +- drivers/firmware/samsung/exynos-acpm-xfer.h | 23 ++ drivers/firmware/samsung/exynos-acpm.c | 61 ++--- drivers/firmware/samsung/exynos-acpm.h | 95 ++++++- 6 files changed, 485 insertions(+), 56 deletions(-) --- base-commit: f4d315a1f9d8fcaf608f283f01ce4d66160f44a1 change-id: 20250221-acpm-debugfs-d196d08e6462 Best regards, -- Tudor Ambarus