1 files changed, 18 insertions, 8 deletions

diff --git a/drivers/dma/dw_dmac.c b/drivers/dma/dw_dmac.c
index 7439079f5eed..e23dc82d43ac 100644
--- a/drivers/dma/dw_dmac.c
+++ b/drivers/dma/dw_dmac.c
@@ -17,6 +17,7 @@
 #include <linux/init.h>
 #include <linux/interrupt.h>
 #include <linux/io.h>
+#include <linux/of.h>
 #include <linux/mm.h>
 #include <linux/module.h>
 #include <linux/platform_device.h>
@@ -742,7 +743,7 @@ dwc_prep_slave_sg(struct dma_chan *chan, struct scatterlist *sgl,
                         struct dw_desc  *desc;
                         u32             len, dlen, mem;
 
-                        mem = sg_phys(sg);
+                        mem = sg_dma_address(sg);
                         len = sg_dma_len(sg);
 
                         if (!((mem | len) & 7))
@@ -809,7 +810,7 @@ slave_sg_todev_fill_desc:
                         struct dw_desc  *desc;
                         u32             len, dlen, mem;
 
-                        mem = sg_phys(sg);
+                        mem = sg_dma_address(sg);
                         len = sg_dma_len(sg);
 
                         if (!((mem | len) & 7))
@@ -1429,7 +1430,7 @@ static int __init dw_probe(struct platform_device *pdev)
                 err = PTR_ERR(dw->clk);
                 goto err_clk;
         }
-        clk_enable(dw->clk);
+        clk_prepare_enable(dw->clk);
 
         /* force dma off, just in case */
         dw_dma_off(dw);
@@ -1510,7 +1511,7 @@ static int __init dw_probe(struct platform_device *pdev)
         return 0;
 
 err_irq:
-        clk_disable(dw->clk);
+        clk_disable_unprepare(dw->clk);
         clk_put(dw->clk);
 err_clk:
         iounmap(dw->regs);
@@ -1540,7 +1541,7 @@ static int __exit dw_remove(struct platform_device *pdev)
                 channel_clear_bit(dw, CH_EN, dwc->mask);
         }
 
-        clk_disable(dw->clk);
+        clk_disable_unprepare(dw->clk);
         clk_put(dw->clk);
 
         iounmap(dw->regs);
@@ -1559,7 +1560,7 @@ static void dw_shutdown(struct platform_device *pdev)
         struct dw_dma   *dw = platform_get_drvdata(pdev);
 
         dw_dma_off(platform_get_drvdata(pdev));
-        clk_disable(dw->clk);
+        clk_disable_unprepare(dw->clk);
 }
 
 static int dw_suspend_noirq(struct device *dev)
@@ -1568,7 +1569,7 @@ static int dw_suspend_noirq(struct device *dev)
         struct dw_dma   *dw = platform_get_drvdata(pdev);
 
         dw_dma_off(platform_get_drvdata(pdev));
-        clk_disable(dw->clk);
+        clk_disable_unprepare(dw->clk);
 
         return 0;
 }
@@ -1578,7 +1579,7 @@ static int dw_resume_noirq(struct device *dev)
         struct platform_device *pdev = to_platform_device(dev);
         struct dw_dma   *dw = platform_get_drvdata(pdev);
 
-        clk_enable(dw->clk);
+        clk_prepare_enable(dw->clk);
         dma_writel(dw, CFG, DW_CFG_DMA_EN);
         return 0;
 }
@@ -1592,12 +1593,21 @@ static const struct dev_pm_ops dw_dev_pm_ops = {
         .poweroff_noirq = dw_suspend_noirq,
 };
 
+#ifdef CONFIG_OF
+static const struct of_device_id dw_dma_id_table[] = {
+        { .compatible = "snps,dma-spear1340" },
+        {}
+};
+MODULE_DEVICE_TABLE(of, dw_dma_id_table);
+#endif
+
 static struct platform_driver dw_driver = {
         .remove         = __exit_p(dw_remove),
         .shutdown       = dw_shutdown,
         .driver = {
                 .name   = "dw_dmac",
                 .pm     = &dw_dev_pm_ops,
+                .of_match_table = of_match_ptr(dw_dma_id_table),
         },
 };