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([240f:74:7be:1:2777:7867:71cd:dd56]) by smtp.gmail.com with ESMTPSA id d2e1a72fcca58-7325d65619bsm12565459b3a.113.2025.02.21.05.35.06 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 21 Feb 2025 05:35:08 -0800 (PST) From: Koichiro Den To: linux-gpio@vger.kernel.org Cc: brgl@bgdev.pl, geert+renesas@glider.be, linus.walleij@linaro.org, maciej.borzecki@canonical.com, linux-kernel@vger.kernel.org Subject: [PATCH v3 0/3] Add synchronous fake device creation utility for GPIO drivers Date: Fri, 21 Feb 2025 22:34:58 +0900 Message-ID: <20250221133501.2203897-1-koichiro.den@canonical.com> X-Mailer: git-send-email 2.45.2 Precedence: bulk X-Mailing-List: linux-gpio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 This patch series introduces a utility for some GPIO devices to reduce code duplication. There are no functional changes. In this series, only gpio-sim and gpio-virtuser are updated to use dev-sync-probe, as the current gpio-aggregator does not benefit from it at all. A follow-up patch series that introduces a configfs interface for gpio-aggregator will convert it to use dev-sync-probe as well. This work originated from a suggestion by Bartosz: https://lore.kernel.org/all/CAMRc=MfcooZXBqVpbQ0ak+8LGsPDzwKSN3Zfb0eZDx1Bx4duzQ@mail.gmail.com/ N.B. this submission is based on the same (gpio/for-next) commit as v2: f04867a5d0d3 ("gpio: loongson-64bit: Remove unneeded ngpio assignment"). v2->v3 changes: - Fixed Kconfig (hide it from users with removing 'depends on', move it outside of 'if GPIOLIB ...'). - Dropped an unnecessary comment, an unnecessary line break. - Fixed Copyright (Year 2025 -> 2021 for Bartosz, add mine) + add my MODULE_AUTHOR. - Renamed dev_sync_probe_data fields ('data' -> 'probe_data') for both gpio-virtuser and gpio-sim. v1->v2 changes: - Renamed the files (gpio-pseudo.[ch] -> dev-sync-probe.[ch]). - Renamed the helper functions and a struct. - Fixed Kconfig (correcting bool to tristate, etc.). - Fixed Copyright. - Added some missing #include. v2: https://lore.kernel.org/all/20250218160333.605829-1-koichiro.den@canonical.com/ v1: https://lore.kernel.org/all/20250217142758.540601-1-koichiro.den@canonical.com/ Koichiro Den (3): gpio: introduce utilities for synchronous fake device creation gpio: sim: convert to use dev-sync-probe utilities gpio: virtuser: convert to use dev-sync-probe utilities drivers/gpio/Kconfig | 5 ++ drivers/gpio/Makefile | 3 ++ drivers/gpio/dev-sync-probe.c | 97 +++++++++++++++++++++++++++++++++++ drivers/gpio/dev-sync-probe.h | 25 +++++++++ drivers/gpio/gpio-sim.c | 84 +++++------------------------- drivers/gpio/gpio-virtuser.c | 73 ++++---------------------- 6 files changed, 152 insertions(+), 135 deletions(-) create mode 100644 drivers/gpio/dev-sync-probe.c create mode 100644 drivers/gpio/dev-sync-probe.h