linux-kernel - [PATCH 01/12] DMAENGINE: remove clock code from PL08X driver

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Message-ID: <1283256734-3408-2-git-send-email-linus.walleij@stericsson.com>
Date:	Tue, 31 Aug 2010 14:12:03 +0200
From:	Linus Walleij <linus.walleij@...ricsson.com>
To:	Dan Williams <dan.j.williams@...el.com>,
	<linux-arm-kernel@...ts.infradead.org>, <yuanyabin1978@...a.com>
Cc:	<linux-kernel@...r.kernel.org>,
	Linus Walleij <linus.walleij@...ricsson.com>
Subject: [PATCH 01/12] DMAENGINE: remove clock code from PL08X driver

With the introduction of the pclk infrastructure the block clock
is handled by the AMBA PrimeCell bus core, and we can remove the
local references to any clocks.

Signed-off-by: Linus Walleij <linus.walleij@...ricsson.com>
---
 drivers/dma/amba-pl08x.c |   18 ------------------
 1 files changed, 0 insertions(+), 18 deletions(-)

diff --git a/drivers/dma/amba-pl08x.c b/drivers/dma/amba-pl08x.c
index fc5aaeb..2afb4f6 100644
--- a/drivers/dma/amba-pl08x.c
+++ b/drivers/dma/amba-pl08x.c
@@ -68,7 +68,6 @@
 #include <linux/amba/bus.h>
 #include <linux/dmaengine.h>
 #include <linux/amba/pl08x.h>
-#include <linux/clk.h>
 
 #include <asm/hardware/pl080.h>
 #include <asm/dma.h>
@@ -113,7 +112,6 @@ struct lli {
  * @adev: the corresponding AMBA (PrimeCell) bus entry
  * @vd: vendor data for this PL08x variant
  * @pd: platform data passed in from the platform/machine
- * @clk: a clock to be enabled for this device to run
  * @phy_chans: array of data for the physical channels
  * @pool: a pool for the LLI descriptors
  * @pool_ctr: counter of LLIs in the pool
@@ -124,7 +122,6 @@ struct pl08x_driver_data {
 	struct amba_device *adev;
 	struct vendor_data *vd;
 	struct pl08x_platform_data *pd;
-	struct clk *clk;
 	struct pl08x_phy_chan *phy_chans;
 	struct dma_pool *pool;
 	int pool_ctr;
@@ -1826,19 +1823,6 @@ static int pl08x_probe(struct amba_device *adev, struct amba_id *id)
 	pl08x->adev = adev;
 	pl08x->vd = vd;
 
-	pl08x->clk = clk_get(&adev->dev, NULL);
-	if (IS_ERR(pl08x->clk)) {
-		ret = PTR_ERR(pl08x->clk);
-		if (ret == -ENOENT) {
-			dev_info(&adev->dev, "no clock supplied, assume always on\n");
-			pl08x->clk = NULL;
-		} else
-			goto out_no_clk;
-	}
-	/* Constantly enabled for now, we can control this dynamically */
-	if (pl08x->clk)
-		clk_enable(pl08x->clk);
-
 	/* A DMA memory pool for LLIs, align on 1-byte boundary */
 	pl08x->pool = dma_pool_create(DRIVER_NAME, &pl08x->adev->dev,
 			PL08X_LLI_TSFR_SIZE, PL08X_ALIGN, 0);
@@ -1963,8 +1947,6 @@ out_no_irq:
 out_no_ioremap:
 	dma_pool_destroy(pl08x->pool);
 out_no_lli_pool:
-	clk_put(pl08x->clk);
-out_no_clk:
 	kfree(pl08x);
 out_no_pl08x:
 	amba_release_regions(adev);
-- 
1.6.3.3

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