From: Boris BREZILLON <b.brezillon@overkiz.com>
To: Nicolas Ferre <nicolas.ferre@atmel.com>,
Ludovic Desroches <ludovic.desroches@atmel.com>,
Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>,
Chris Ball <cjb@laptop.org>
Cc: linux-arm-kernel@lists.infradead.org,
linux-kernel@vger.kernel.org, linux-mmc@vger.kernel.org,
Boris BREZILLON <b.brezillon@overkiz.com>
Subject: [PATCH 2/8] at_hdmac: prepare clk before calling enable
Date: Wed, 19 Jun 2013 13:15:44 +0200 [thread overview]
Message-ID: <1371640544-9515-1-git-send-email-b.brezillon@overkiz.com> (raw)
In-Reply-To: <1371640263-9268-1-git-send-email-b.brezillon@overkiz.com>
Replace clk_enable/disable with clk_prepare_enable/disable_unprepare to
avoid common clk framework warnings.
Signed-off-by: Boris BREZILLON <b.brezillon@overkiz.com>
---
drivers/dma/at_hdmac.c | 17 +++++++++++------
1 file changed, 11 insertions(+), 6 deletions(-)
diff --git a/drivers/dma/at_hdmac.c b/drivers/dma/at_hdmac.c
index e923cda..19a484a 100644
--- a/drivers/dma/at_hdmac.c
+++ b/drivers/dma/at_hdmac.c
@@ -1374,7 +1374,9 @@ static int __init at_dma_probe(struct platform_device *pdev)
err = PTR_ERR(atdma->clk);
goto err_clk;
}
- clk_enable(atdma->clk);
+ err = clk_prepare_enable(atdma->clk);
+ if (err)
+ goto err_clk_prepare;
/* force dma off, just in case */
at_dma_off(atdma);
@@ -1475,7 +1477,8 @@ err_pool_create:
platform_set_drvdata(pdev, NULL);
free_irq(platform_get_irq(pdev, 0), atdma);
err_irq:
- clk_disable(atdma->clk);
+ clk_disable_unprepare(atdma->clk);
+err_clk_prepare:
clk_put(atdma->clk);
err_clk:
iounmap(atdma->regs);
@@ -1512,7 +1515,7 @@ static int at_dma_remove(struct platform_device *pdev)
list_del(&chan->device_node);
}
- clk_disable(atdma->clk);
+ clk_disable_unprepare(atdma->clk);
clk_put(atdma->clk);
iounmap(atdma->regs);
@@ -1531,7 +1534,7 @@ static void at_dma_shutdown(struct platform_device *pdev)
struct at_dma *atdma = platform_get_drvdata(pdev);
at_dma_off(platform_get_drvdata(pdev));
- clk_disable(atdma->clk);
+ clk_disable_unprepare(atdma->clk);
}
static int at_dma_prepare(struct device *dev)
@@ -1588,7 +1591,7 @@ static int at_dma_suspend_noirq(struct device *dev)
/* disable DMA controller */
at_dma_off(atdma);
- clk_disable(atdma->clk);
+ clk_disable_unprepare(atdma->clk);
return 0;
}
@@ -1618,7 +1621,9 @@ static int at_dma_resume_noirq(struct device *dev)
struct dma_chan *chan, *_chan;
/* bring back DMA controller */
- clk_enable(atdma->clk);
+ err = clk_prepare_enable(atdma->clk);
+ if (err)
+ return err;
dma_writel(atdma, EN, AT_DMA_ENABLE);
/* clear any pending interrupt */
--
1.7.9.5
next prev parent reply other threads:[~2013-06-19 11:33 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-19 11:11 [PATCH 0/8] ARM: at91: prepare the move to common clk framework Boris BREZILLON
2013-06-19 11:13 ` [PATCH 1/8] ARM: at91/tc/clocksource: replace clk_enable/disable with clk_prepare_enable/disable_unprepare Boris BREZILLON
2013-06-20 7:33 ` Nicolas Ferre
2013-06-19 11:14 ` [PATCH 2/8] at_hdmac: prepare clk before calling enable Boris BREZILLON
2013-06-20 7:43 ` Nicolas Ferre
2013-06-21 2:40 ` Vinod Koul
2013-06-24 17:40 ` Nicolas Ferre
2013-06-19 11:15 ` Boris BREZILLON [this message]
2013-06-19 11:16 ` [PATCH 3/8] mmc: atmel-mci: " Boris BREZILLON
2013-06-19 11:17 ` [PATCH 4/8] tty: atmel_serial: " Boris BREZILLON
2013-06-20 7:48 ` Nicolas Ferre
2013-06-20 8:06 ` boris brezillon
2013-06-20 10:20 ` Nicolas Ferre
2013-06-19 11:18 ` [PATCH 5/8] usb: gadget: at91_udc: " Boris BREZILLON
2013-06-19 11:20 ` [PATCH 6/8] ehci-atmel.c: " Boris BREZILLON
2013-06-19 11:21 ` [PATCH 7/8] USB: ohci-at91: " Boris BREZILLON
2013-06-19 11:22 ` [PATCH 8/8] at91/avr32/atmel_lcdfb: " Boris BREZILLON
2013-06-20 7:49 ` Nicolas Ferre
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