linux-kernel - [PATCH v4 4/6] dmaengine: dw-edma: Add HDMA remote interrupt configuration

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Message-Id: <20231011-b4-feature_hdma_mainline-v4-4-43d417b93138@bootlin.com>
Date:   Wed, 11 Oct 2023 16:17:00 +0200
From:   Kory Maincent <kory.maincent@...tlin.com>
To:     Manivannan Sadhasivam <mani@...nel.org>,
        Gustavo Pimentel <gustavo.pimentel@...opsys.com>,
        Serge Semin <fancer.lancer@...il.com>,
        Vinod Koul <vkoul@...nel.org>,
        Cai Huoqing <cai.huoqing@...ux.dev>
Cc:     Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
        dmaengine@...r.kernel.org, linux-kernel@...r.kernel.org,
        Herve Codina <herve.codina@...tlin.com>,
        Kory Maincent <kory.maincent@...tlin.com>,
        Manivannan Sadhasivam <mani@...nel.org>
Subject: [PATCH v4 4/6] dmaengine: dw-edma: Add HDMA remote interrupt
 configuration

Only the local interruption was configured, remote interrupt was left
behind. This patch fix it by setting stop and abort remote interrupts when
the DW_EDMA_CHIP_LOCAL flag is not set.

Fixes: e74c39573d35 ("dmaengine: dw-edma: Add support for native HDMA")
Signed-off-by: Kory Maincent <kory.maincent@...tlin.com>
Reviewed-by: Serge Semin <fancer.lancer@...il.com>
Acked-by: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>
---
 drivers/dma/dw-edma/dw-hdma-v0-core.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/dma/dw-edma/dw-hdma-v0-core.c b/drivers/dma/dw-edma/dw-hdma-v0-core.c
index 108f9127aaaa..04b0bcb6ded9 100644
--- a/drivers/dma/dw-edma/dw-hdma-v0-core.c
+++ b/drivers/dma/dw-edma/dw-hdma-v0-core.c
@@ -237,6 +237,8 @@ static void dw_hdma_v0_core_start(struct dw_edma_chunk *chunk, bool first)
 		tmp = GET_CH_32(dw, chan->dir, chan->id, int_setup) |
 		      HDMA_V0_STOP_INT_MASK | HDMA_V0_ABORT_INT_MASK |
 		      HDMA_V0_LOCAL_STOP_INT_EN | HDMA_V0_LOCAL_ABORT_INT_EN;
+		if (!(dw->chip->flags & DW_EDMA_CHIP_LOCAL))
+			tmp |= HDMA_V0_REMOTE_STOP_INT_EN | HDMA_V0_REMOTE_ABORT_INT_EN;
 		SET_CH_32(dw, chan->dir, chan->id, int_setup, tmp);
 		/* Channel control */
 		SET_CH_32(dw, chan->dir, chan->id, control1, HDMA_V0_LINKLIST_EN);

-- 
2.25.1