From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 64743418E27; Sat, 28 Feb 2026 17:45:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772300731; cv=none; b=D3OAl3+Hpv5DxQLThIDYqoEcM5Fj4BItGePCAY0dOEJXmmIO0P3i5g431Fzky7duRk+tUbTwEqxMmm8JkUaGd22sHsxoW9ANufs5yAZ3mDUCJ9mZATkoGwwk/Ha87d95g4Xf2OrfdpWV2SHvBcywT02Eyqzvd5L3yg2jpvWQM74= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1772300731; c=relaxed/simple; bh=Ssi4ys2hsnK4l5iOGPWzKxKmZumXDR9aWBZNhATU+mw=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=GqQFgn9XofWu0HxtxhtNFsNpsbDHwKtItk7ico6wufiR2P0AgWBnIxmnvuuNlXaP4uIQAys+ImqlOjx9w1/rwWe13Lox8+mOLQdoCdC/31biG4E4qpdN5MYtngL5/6gqtl/fCP8NzjBBN6rVNLnf9KNefnDQDXIPtp7I3qt03KU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=GAYUs3nI; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="GAYUs3nI" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 8F147C19423; Sat, 28 Feb 2026 17:45:30 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1772300731; bh=Ssi4ys2hsnK4l5iOGPWzKxKmZumXDR9aWBZNhATU+mw=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=GAYUs3nI1rzQ0Rr2e5CilbbStZqhQaW9IIw4RpMJJgBdmPGnfi2HWvjIWAISj/DH2 uh+lBBxrMM49vHEtYQzVUNaH8BN0myGXOovRBEhRP5LfDKBHp0AW0v2wvpIhTP6k3G 55i3qlOCsG7ywNiIeaLq2RcNon8CbxgYPMkfx4rpNY8OhOZ01LooyuwEkEB9HPgOXj nJ38JtT8FGSViOm0dUsgwQpqFnlxtWDwaa1dY04Q4AHOTVv+TXaBD75BnKHXKE/Xpu MiIQNpbo8QEhxm+CJa+/AZLxKa07Iq+wxpnUeaBGFoJi4luF/ktNHeR41DUfc6e4UL kMyjv8Yoms2Xg== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Jiaxun Yang , Waldemar Brodkorb , Thomas Bogendoerfer , Sasha Levin Subject: [PATCH 6.19 765/844] MIPS: rb532: Fix MMIO UART resource registration Date: Sat, 28 Feb 2026 12:31:18 -0500 Message-ID: <20260228173244.1509663-766-sashal@kernel.org> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260228173244.1509663-1-sashal@kernel.org> References: <20260228173244.1509663-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore Content-Transfer-Encoding: 8bit From: Jiaxun Yang [ Upstream commit e93bb4b76cfefb302534246e892c7667491cb8cc ] Since commit 6e690d54cfa8 ("serial: 8250: fix return error code in serial8250_request_std_resource()"), registering an 8250 MMIO port without mapbase no longer works, as the resource range is derived from mapbase/mapsize. Populate mapbase and mapsize accordingly. Also drop ugly membase KSEG1 pointer and set UPF_IOREMAP instead, letting the 8250 core perform the ioremap. Fixes: 6e690d54cfa8 ("serial: 8250: fix return error code in serial8250_request_std_resource()") Cc: stable@vger.kernel.org Reported-by: Waldemar Brodkorb Link: https://lore.kernel.org/linux-mips/aX-d0ShTplHKZT33@waldemar-brodkorb.de/ Signed-off-by: Jiaxun Yang Signed-off-by: Thomas Bogendoerfer Signed-off-by: Sasha Levin --- arch/mips/rb532/devices.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/arch/mips/rb532/devices.c b/arch/mips/rb532/devices.c index b7f6f782d9a13..ffa4d38ca95df 100644 --- a/arch/mips/rb532/devices.c +++ b/arch/mips/rb532/devices.c @@ -212,11 +212,12 @@ static struct platform_device rb532_wdt = { static struct plat_serial8250_port rb532_uart_res[] = { { .type = PORT_16550A, - .membase = (char *)KSEG1ADDR(REGBASE + UART0BASE), + .mapbase = REGBASE + UART0BASE, + .mapsize = 0x1000, .irq = UART0_IRQ, .regshift = 2, .iotype = UPIO_MEM, - .flags = UPF_BOOT_AUTOCONF, + .flags = UPF_BOOT_AUTOCONF | UPF_IOREMAP, }, { .flags = 0, -- 2.51.0