From: Jonas Aaberg <jonas.aberg@stericsson.com>
Date: Mon, 9 Aug 2010 12:08:41 +0000 (+0000)
Subject: DMAENGINE: ste_dma40: corrected is_paused behavior
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=9dbfbd35ce16e4f5a4d0d9e3f6e012b136fe80ea;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

DMAENGINE: ste_dma40: corrected is_paused behavior

The handling of pause detection was slightly incorrect.

Signed-off-by: Jonas Aaberg <jonas.aberg@stericsson.com>
Signed-off-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---

diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c
index 7a4919bf1e92..2b209fa004ba 100644
--- a/drivers/dma/ste_dma40.c
+++ b/drivers/dma/ste_dma40.c
@@ -1521,16 +1521,22 @@ static bool d40_is_paused(struct d40_chan *d40c)
 	}
 
 	if (d40c->dma_cfg.dir == STEDMA40_MEM_TO_PERIPH ||
-	    d40c->dma_cfg.dir == STEDMA40_MEM_TO_MEM)
+	    d40c->dma_cfg.dir == STEDMA40_MEM_TO_MEM) {
 		event = D40_TYPE_TO_EVENT(d40c->dma_cfg.dst_dev_type);
-	else if (d40c->dma_cfg.dir == STEDMA40_PERIPH_TO_MEM)
+		status = readl(d40c->base->virtbase + D40_DREG_PCBASE +
+			       d40c->phy_chan->num * D40_DREG_PCDELTA +
+			       D40_CHAN_REG_SDLNK);
+	} else if (d40c->dma_cfg.dir == STEDMA40_PERIPH_TO_MEM) {
 		event = D40_TYPE_TO_EVENT(d40c->dma_cfg.src_dev_type);
-	else {
+		status = readl(d40c->base->virtbase + D40_DREG_PCBASE +
+			       d40c->phy_chan->num * D40_DREG_PCDELTA +
+			       D40_CHAN_REG_SSLNK);
+	} else {
 		dev_err(&d40c->chan.dev->device,
 			"[%s] Unknown direction\n", __func__);
 		goto _exit;
 	}
-	status = d40_chan_has_events(d40c);
+
 	status = (status & D40_EVENTLINE_MASK(event)) >>
 		D40_EVENTLINE_POS(event);