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Sun, 04 Oct 2026 15:03:00 -0700 (PDT) Received: from ryzen.lan ([2601:644:8000:7a86::e35]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3a6dce36d07sm5771328a91.1.2026.10.04.15.02.59 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 04 Oct 2026 15:02:59 -0700 (PDT) From: Rosen Penev To: linux-rtc@vger.kernel.org Cc: Hans Ulli Kroll , Linus Walleij , Alexandre Belloni , linux-arm-kernel@lists.infradead.org (moderated list:ARM/CORTINA SYSTEMS GEMINI ARM ARCHITECTURE), linux-kernel@vger.kernel.org (open list) Subject: [PATCH] rtc: ftrtc010: use devm_platform_ioremap_resource() Date: Sun, 4 Oct 2026 15:02:58 -0700 Message-ID: <20261004220258.401706-1-rosenp@gmail.com> X-Mailer: git-send-email 2.56.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Replace the open-coded platform_get_resource() plus devm_ioremap() sequence with devm_platform_ioremap_resource(), and propagate its ERR_PTR() directly. This also reserves the MMIO region. The only user, gemini.dtsi, describes a single 0x100 window at 0x45000000 that no other node overlaps, so this introduces no conflict. Assisted-by: LLM Signed-off-by: Rosen Penev --- drivers/rtc/rtc-ftrtc010.c | 12 +++--------- 1 file changed, 3 insertions(+), 9 deletions(-) diff --git a/drivers/rtc/rtc-ftrtc010.c b/drivers/rtc/rtc-ftrtc010.c index b29c96be40f4..3e88cb224f67 100644 --- a/drivers/rtc/rtc-ftrtc010.c +++ b/drivers/rtc/rtc-ftrtc010.c @@ -111,7 +111,6 @@ static int ftrtc010_rtc_probe(struct platform_device *pdev) u32 days, hour, min, sec; struct ftrtc010_rtc *rtc; struct device *dev = &pdev->dev; - struct resource *res; struct rtc_device *rtc_dev; int ret; @@ -135,14 +134,9 @@ static int ftrtc010_rtc_probe(struct platform_device *pdev) if (rtc->rtc_irq < 0) return rtc->rtc_irq; - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) - return -ENODEV; - - rtc->rtc_base = devm_ioremap(dev, res->start, - resource_size(res)); - if (!rtc->rtc_base) - return -ENOMEM; + rtc->rtc_base = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(rtc->rtc_base)) + return PTR_ERR(rtc->rtc_base); rtc_dev = devm_rtc_allocate_device(dev); if (IS_ERR(rtc_dev)) -- 2.56.0