From patchwork Thu Nov 7 13:50:53 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lorenzo Bianconi X-Patchwork-Id: 13866539 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 43047D43360 for ; Thu, 7 Nov 2024 13:56:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References :Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=01nEnPrHr/KB6tX2/rLObtEkZwgoa/NK4Y4p1QWGNTc=; b=0vciS+J9jw15i9+5TB4XYYSUQ8 M6GdkZ/9VNh5X9kcU1aaAUSmFWZNZjYp8TwksuOPVuatHwbxt3MEC4PiPcS13MteLeX4UQwIwICYZ tL0s1WBNR+tUQEcElAM48uHPJcJEihtKpn7JApmvTni6Q8V9CkIfLR1bJVvTy1FsVJSlXty8GKcob YSRdw8rm5IqFhjJ8q7NICLq0Bw7p4P7LxEUhUFTsj77xGnlQysGawgPNEHF4iUCpQSL66BQ5p+uj1 QTfDu5YFZ351Gc+I3BqFiHxz9Wh/XcJdZ+YkjtmijUrPT73qJCbA8Vsa/+73R4Q7tjYFTFbiOgzwv 1n4XK09A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98 #2 (Red Hat Linux)) id 1t9301-00000007CQI-1JIX; Thu, 07 Nov 2024 13:56:37 +0000 Received: from dfw.source.kernel.org ([139.178.84.217]) by bombadil.infradead.org with esmtps (Exim 4.98 #2 (Red Hat Linux)) id 1t92uz-00000007BX5-3LOk; Thu, 07 Nov 2024 13:51:27 +0000 Received: from smtp.kernel.org (transwarp.subspace.kernel.org [100.75.92.58]) by dfw.source.kernel.org (Postfix) with ESMTP id 779C15C58E6; Thu, 7 Nov 2024 13:50:40 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5BBB6C4CECC; Thu, 7 Nov 2024 13:51:24 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1730987484; bh=WjKW4w6m9vxglUpKnIKGk6mwn72chjGL/VfCQGNIAxM=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=ExGndzmsAu9yPvANhTikksjegfEO+gzD/zauKwUogXN0B4EhHorTvDxNnlxhF2RIv aOLG0RQ6HCywBNB8fJRWXcPvi7seUek9snum1XkoQBmfmKPOKwImKPD/xdkEqkfn2U 50oUpSQd84YFiZxHhbG3tH2NvGdiUxNkNkO79grcxDTydShRmbYqnrZ1LtdvpcNrTQ d1e/mDu7rcnUs9IPw/oVU5knuJnWEMI0IWP/tZ7v9G7SH88+0/Qzv9GAHf7AU1Gboi 8l3SogVe1V1KMC0vkQYX87wuBDWxZf13iU8Wd5bWCFH4cCG/J9VpmTWOVXd8y2G3T2 bJMkuClCQZCMw== From: Lorenzo Bianconi Date: Thu, 07 Nov 2024 14:50:53 +0100 Subject: [PATCH 1/3] PCI: mediatek-gen3: Add missing reset_control_deassert for mac_rst in mtk_pcie_en7581_power_up MIME-Version: 1.0 Message-Id: <20241107-pcie-en7581-fixes-v1-1-af0c872323c7@kernel.org> References: <20241107-pcie-en7581-fixes-v1-0-af0c872323c7@kernel.org> In-Reply-To: <20241107-pcie-en7581-fixes-v1-0-af0c872323c7@kernel.org> To: Ryder Lee , Jianjun Wang , Lorenzo Pieralisi , =?utf-8?q?Krzysztof_Wilczy?= =?utf-8?q?=C5=84ski?= , Manivannan Sadhasivam , Rob Herring , Bjorn Helgaas , Philipp Zabel , Matthias Brugger , AngeloGioacchino Del Regno Cc: linux-pci@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, Lorenzo Bianconi X-Mailer: b4 0.14.2 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20241107_055125_911883_1DDFFC95 X-CRM114-Status: UNSURE ( 9.72 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-mediatek@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-mediatek" Errors-To: linux-mediatek-bounces+linux-mediatek=archiver.kernel.org@lists.infradead.org Even if this is not a real issue since Airoha EN7581 SoC does not require the mac reset line, add missing reset_control_deassert() for mac reset line in mtk_pcie_en7581_power_up callback. Signed-off-by: Lorenzo Bianconi --- drivers/pci/controller/pcie-mediatek-gen3.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/pci/controller/pcie-mediatek-gen3.c b/drivers/pci/controller/pcie-mediatek-gen3.c index 66ce4b5d309bb6d64618c70ac5e0a529e0910511..0fac0b9fd785e463d26d29d695b923db41eef9cc 100644 --- a/drivers/pci/controller/pcie-mediatek-gen3.c +++ b/drivers/pci/controller/pcie-mediatek-gen3.c @@ -897,6 +897,9 @@ static int mtk_pcie_en7581_power_up(struct mtk_gen3_pcie *pcie) */ mdelay(PCIE_EN7581_RESET_TIME_MS); + /* MAC power on and enable transaction layer clocks */ + reset_control_deassert(pcie->mac_reset); + pm_runtime_enable(dev); pm_runtime_get_sync(dev); @@ -931,6 +934,7 @@ static int mtk_pcie_en7581_power_up(struct mtk_gen3_pcie *pcie) err_clk_prepare: pm_runtime_put_sync(dev); pm_runtime_disable(dev); + reset_control_assert(pcie->mac_reset); reset_control_bulk_assert(pcie->soc->phy_resets.num_resets, pcie->phy_resets); err_phy_deassert: phy_power_off(pcie->phy);