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 5B43127CCF0; Tue, 27 May 2025 17:48:29 +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=1748368110; cv=none; b=qx6PqWkRpq/RSq8fBwxIYX3VOyf8b0O0UdXGdBFqATMLMD4H8xvqGDyBs6EHq9tmgjqhliYTLkJOrx9QPKr9xQK4EZBVo8SqDhCdR1Fsb3kr7auNBMazsvIJ5KB3fd2UMk8F9pBeDK6HwpPyPwf9mZ3P8yq55yTViF1ofLyiJ7U= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748368110; c=relaxed/simple; bh=ELpOj3zQOOQHPebGMCBCEbq5vyT+YeFj4QjhbGwwkfE=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=ifaQTLr71s5MbUvTpIT+uKeV80ay6Gm+XMcjKNL2eEUYDxw9DYW4MQKvw73E985Qzb0/v1ljTv+2qpCzDEka3pn2MCRkWIMtTddJPDiKVZJa7hG7Le+VVt5bPBH/Por2F2DgTFKLB3Da9F+dfrWkkF4q/vmYe4tWAK64lHaA8qI= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=xzXzaz0y; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="xzXzaz0y" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5E606C4CEE9; Tue, 27 May 2025 17:48:29 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1748368109; bh=ELpOj3zQOOQHPebGMCBCEbq5vyT+YeFj4QjhbGwwkfE=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=xzXzaz0yE6hJ+worEsXaTMiqZesI+szkOFfHE94nB1p8gS+nY3Cyob4a62gdfZHMJ hAe/3tSqF3pvGrcorQ3JXcgkb+xEuU2+iVLIJVjX/SefhiKqxomzXM2wPLxRfsI4BM RcwHPFdoZkA2HfcNoKywlgBVf1YDEH7YSgNmtwJ4= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Sean Anderson , Mark Brown , Sasha Levin Subject: [PATCH 6.14 601/783] spi: zynqmp-gqspi: Always acknowledge interrupts Date: Tue, 27 May 2025 18:26:38 +0200 Message-ID: <20250527162537.618396861@linuxfoundation.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250527162513.035720581@linuxfoundation.org> References: <20250527162513.035720581@linuxfoundation.org> User-Agent: quilt/0.68 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: patches@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.14-stable review patch. If anyone has any objections, please let me know. ------------------ From: Sean Anderson [ Upstream commit 89785306453ce6d949e783f6936821a0b7649ee2 ] RXEMPTY can cause an IRQ, even though we may not do anything about it (such as if we are waiting for more received data). We must still handle these IRQs because we can tell they were caused by the device. Signed-off-by: Sean Anderson Link: https://patch.msgid.link/20250116224130.2684544-6-sean.anderson@linux.dev Signed-off-by: Mark Brown Signed-off-by: Sasha Levin --- drivers/spi/spi-zynqmp-gqspi.c | 20 ++++++++------------ 1 file changed, 8 insertions(+), 12 deletions(-) diff --git a/drivers/spi/spi-zynqmp-gqspi.c b/drivers/spi/spi-zynqmp-gqspi.c index d800d79f62a70..12ab13edab543 100644 --- a/drivers/spi/spi-zynqmp-gqspi.c +++ b/drivers/spi/spi-zynqmp-gqspi.c @@ -799,7 +799,6 @@ static void zynqmp_process_dma_irq(struct zynqmp_qspi *xqspi) static irqreturn_t zynqmp_qspi_irq(int irq, void *dev_id) { struct zynqmp_qspi *xqspi = (struct zynqmp_qspi *)dev_id; - irqreturn_t ret = IRQ_NONE; u32 status, mask, dma_status = 0; status = zynqmp_gqspi_read(xqspi, GQSPI_ISR_OFST); @@ -814,27 +813,24 @@ static irqreturn_t zynqmp_qspi_irq(int irq, void *dev_id) dma_status); } - if (mask & GQSPI_ISR_TXNOT_FULL_MASK) { + if (!mask && !dma_status) + return IRQ_NONE; + + if (mask & GQSPI_ISR_TXNOT_FULL_MASK) zynqmp_qspi_filltxfifo(xqspi, GQSPI_TX_FIFO_FILL); - ret = IRQ_HANDLED; - } - if (dma_status & GQSPI_QSPIDMA_DST_I_STS_DONE_MASK) { + if (dma_status & GQSPI_QSPIDMA_DST_I_STS_DONE_MASK) zynqmp_process_dma_irq(xqspi); - ret = IRQ_HANDLED; - } else if (!(mask & GQSPI_IER_RXEMPTY_MASK) && - (mask & GQSPI_IER_GENFIFOEMPTY_MASK)) { + else if (!(mask & GQSPI_IER_RXEMPTY_MASK) && + (mask & GQSPI_IER_GENFIFOEMPTY_MASK)) zynqmp_qspi_readrxfifo(xqspi, GQSPI_RX_FIFO_FILL); - ret = IRQ_HANDLED; - } if (xqspi->bytes_to_receive == 0 && xqspi->bytes_to_transfer == 0 && ((status & GQSPI_IRQ_MASK) == GQSPI_IRQ_MASK)) { zynqmp_gqspi_write(xqspi, GQSPI_IDR_OFST, GQSPI_ISR_IDR_MASK); complete(&xqspi->data_completion); - ret = IRQ_HANDLED; } - return ret; + return IRQ_HANDLED; } /** -- 2.39.5