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[35.230.65.123]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-218a1e5cec5sm63162375ad.172.2024.12.17.11.36.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 17 Dec 2024 11:37:00 -0800 (PST) Date: Tue, 17 Dec 2024 11:36:57 -0800 From: William McVicker To: "Rob Herring (Arm)" Cc: Lee Jones , Arnd Bergmann , Pankaj Dubey , Heiko Stuebner , Liviu Dudau , Sudeep Holla , Lorenzo Pieralisi , Peter Griffin , John Madieu , Krzysztof Kozlowski , linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org Subject: Re: [PATCH v2 2/3] mfd: syscon: Remove the platform driver support Message-ID: References: <20241217-syscon-fixes-v2-0-4f56d750541d@kernel.org> <20241217-syscon-fixes-v2-2-4f56d750541d@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20241217-syscon-fixes-v2-2-4f56d750541d@kernel.org> X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241217_113702_131538_D54362F4 X-CRM114-Status: GOOD ( 15.66 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On 12/17/2024, Rob Herring (Arm) wrote: > The platform driver is dead code. It is not used by DT platforms since > commit bdb0066df96e ("mfd: syscon: Decouple syscon interface from > platform devices") which said: > > For non-DT based platforms, this patch keeps syscon platform driver > structure so that syscon can be probed and such non-DT based drivers > can use syscon_regmap_lookup_by_pdev API and access regmap handles. > Once all users of "syscon_regmap_lookup_by_pdev" migrated to DT based, > we can completely remove platform driver of syscon, and keep only helper > functions to get regmap handles. > > The last user of syscon_regmap_lookup_by_pdevname() was removed in 2018. > syscon_regmap_lookup_by_pdevname() was then removed in 2019, but that > commit failed to remove the rest of the platform driver. > > Tested-by: Krzysztof Kozlowski > Signed-off-by: Rob Herring (Arm) I verified this works on my Pixel 6. Thanks! Tested-by: Will McVicker Thanks, Will