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[88.10.60.23]) by smtp.gmail.com with ESMTPSA id n13-20020a05600c3b8d00b003dc434900e1sm14798046wms.34.2023.02.13.04.06.39 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 13 Feb 2023 04:06:40 -0800 (PST) From: Sergio Paracuellos To: linux-watchdog@vger.kernel.org Cc: wim@linux-watchdog.org, linux@roeck-us.net, robh+dt@kernel.org, krzysztof.kozlowski+dt@linaro.org, matthias.bgg@gmail.com, arinc.unal@arinc9.com, tsbogend@alpha.franken.de, p.zabel@pengutronix.de, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-mips@vger.kernel.org Subject: [PATCH v5 0/2] avoid globals and arch dependencies Date: Mon, 13 Feb 2023 13:06:36 +0100 Message-Id: <20230213120638.850612-1-sergio.paracuellos@gmail.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-mips@vger.kernel.org Hi all, This series make an update in the MT7621 SoC's watchdog driver code. This SoC already provides a system controller node to access reset status register needed for the watchdog. Instead of using MIPS architecture dependent operations in header 'asm/mach-ralink/ralink_regs.h' could use a phandle to the system controller node and use it through regmap APIs from the code. However this means to break dtb's ABI so previous series patches related with this have been droped from this version. Driver is also using some globals that are not needed at all if a driver data structure is used along the code. Hence, add all new needed stuff inside a new driver data structure. Thanks in advance for reviewing this! v1 of this series here [0]. v2 os thise series here [1]. v3 os thise series here [2]. v4 os thise series here [3]. Changes in v5: - Drop patches related with device tree ABI breakage and only maintain the rest. - Collect Arinc 'Reviewed-by' tag for watchdog node warning fix. Changes in v4: - Add a patch to fix a watchdog node warning with 'make dtbs_check' because of a wrong node name. - Collect Guenter 'Reviewed-by' tags for watchdog driver code. - Add a missing 'COMPILE_TEST' to Kconfig which was lost when driver code was split in two patches in v2. Changes in v3: - rename phandler from 'ralink,sysctl' into 'mediatek,sysctl'. - Drop error message added in PATCH 3 that modifies functionality and we only want to maintain current functionaloty by now. Changes in v2: - Remove no needed compatible 'syscon' from bindings. - Rewrite new syscon phandle description in bindings. - Remove 'syscon' from compatible in 'mt7621.dtsi'. - Split PATCH 3 into two different patches: - PATCH 3: removes static globals using a driver data structure. - PATCH 4: remove ralink architecture dependent includes and code. Best regards, Sergio Paracuellos [0]: https://lore.kernel.org/linux-watchdog/20230210065621.598120-1-sergio.paracuellos@gmail.com/T/#t [1]: https://lore.kernel.org/linux-watchdog/20230210121735.639089-1-sergio.paracuellos@gmail.com/T/#t [2]: https://lore.kernel.org/linux-watchdog/20230210173841.705783-1-sergio.paracuellos@gmail.com/T/#t [3]: https://lore.kernel.org/linux-watchdog/20230211073357.755893-1-sergio.paracuellos@gmail.com/T/#t Sergio Paracuellos (2): mips: dts: ralink: mt7621: rename watchdog node from 'wdt' into 'watchdog' watchdog: mt7621-wdt: avoid static global declarations arch/mips/boot/dts/ralink/mt7621.dtsi | 2 +- drivers/watchdog/mt7621_wdt.c | 102 ++++++++++++++++---------- 2 files changed, 66 insertions(+), 38 deletions(-)