Merge branch 'imx/dt/for-3.5' of git://git.linaro.org/people/shawnguo/linux-2.6.git into next/dt2

Shawn Guo <shawn.guo@linaro.org> writes:

  I chose to base it on Sascha's imx-common-clk series than -rc, because
  otherwise it will keep patching clock file that has been removed by
  imx-common-clk series.  It also depends on imx-pinctrl pull-request
  I just sent to be functional.

  Note: when imx-common-clk and imx-pinctrl get merged together, the
  following files will have conflicts.  But the conflicts should not be
  so hard to resolve.

[arnd: resolved those merge conflicts by pulling pinctrl branch]

* imx/dt: (24 commits)
  ARM: dts: imx53-qsb: enable audio support
  ARM: dts: imx51-babbage: enable audio support
  ARM: imx: add audio codec clk lookup for imx53-qsb
  ARM: imx: add audmux pad setting for imx51-babbage
  ARM: imx: add more imx5 ssi clocks
  ARM: dts: imx53-qsb: Add Dialog DA9053 PMIC support
  ARM: dts: imx6q-sabrelite: add serial2 pinctrl support
  ARM: dts: imx6q-sabrelite: add sound device imx6q-sabrelite-sgtl5000
  ARM: imx6q_sabrelite: clk_register_clkdev cko1 for sgtl5000
  ARM: imx6q: add ssi1_ipg clk_lookup
  ARM: dts: imx6q-sabrelite: add audmux pinctrl support
  ARM: dts: imx6q-sabrelite: add i2c1 pinctrl support
  ARM: dts: imx6q-sabrelite: add audmux device
  ARM: dts: imx6q-sabrelite: add ssi device
  ARM: dts: imx6q-arm2: add pinctrl state for usdhc
  ARM: imx6: Add UART2 for low-level debug
  ARM: imx6q: register phy fixup only when CONFIG_PHYLIB is enabled
  ARM: imx6q: move imx6q_sabrelite specific code to a dedicated function
  ARM: dts: imx6q-sabrelite: Add SPI NOR support
  ARM: dts: Add basic support for imx6q-sabresd
  ...

Pulls in imx/pinctrl and imx/clock as dependencies.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

2 files changed, 31 insertions, 15 deletions

diff --git a/drivers/dma/imx-sdma.c b/drivers/dma/imx-sdma.c
index d3e38e2..fddccae 100644
--- a/drivers/dma/imx-sdma.c
+++ b/drivers/dma/imx-sdma.c
@@ -322,7 +322,8 @@ struct sdma_engine {
 	struct sdma_context_data	*context;
 	dma_addr_t			context_phys;
 	struct dma_device		dma_device;
-	struct clk			*clk;
+	struct clk			*clk_ipg;
+	struct clk			*clk_ahb;
 	struct mutex			channel_0_lock;
 	struct sdma_script_start_addrs	*script_addrs;
 };
@@ -859,7 +860,8 @@ static int sdma_alloc_chan_resources(struct dma_chan *chan)
 	sdmac->peripheral_type = data->peripheral_type;
 	sdmac->event_id0 = data->dma_request;
 
-	clk_enable(sdmac->sdma->clk);
+	clk_enable(sdmac->sdma->clk_ipg);
+	clk_enable(sdmac->sdma->clk_ahb);
 
 	ret = sdma_request_channel(sdmac);
 	if (ret)
@@ -896,7 +898,8 @@ static void sdma_free_chan_resources(struct dma_chan *chan)
 
 	dma_free_coherent(NULL, PAGE_SIZE, sdmac->bd, sdmac->bd_phys);
 
-	clk_disable(sdma->clk);
+	clk_disable(sdma->clk_ipg);
+	clk_disable(sdma->clk_ahb);
 }
 
 static struct dma_async_tx_descriptor *sdma_prep_slave_sg(
@@ -1169,12 +1172,14 @@ static void sdma_load_firmware(const struct firmware *fw, void *context)
 	addr = (void *)header + header->script_addrs_start;
 	ram_code = (void *)header + header->ram_code_start;
 
-	clk_enable(sdma->clk);
+	clk_enable(sdma->clk_ipg);
+	clk_enable(sdma->clk_ahb);
 	/* download the RAM image for SDMA */
 	sdma_load_script(sdma, ram_code,
 			header->ram_code_size,
 			addr->ram_code_start_addr);
-	clk_disable(sdma->clk);
+	clk_disable(sdma->clk_ipg);
+	clk_disable(sdma->clk_ahb);
 
 	sdma_add_scripts(sdma, addr);
 
@@ -1216,7 +1221,8 @@ static int __init sdma_init(struct sdma_engine *sdma)
 		return -ENODEV;
 	}
 
-	clk_enable(sdma->clk);
+	clk_enable(sdma->clk_ipg);
+	clk_enable(sdma->clk_ahb);
 
 	/* Be sure SDMA has not started yet */
 	writel_relaxed(0, sdma->regs + SDMA_H_C0PTR);
@@ -1269,12 +1275,14 @@ static int __init sdma_init(struct sdma_engine *sdma)
 	/* Initializes channel's priorities */
 	sdma_set_channel_priority(&sdma->channel[0], 7);
 
-	clk_disable(sdma->clk);
+	clk_disable(sdma->clk_ipg);
+	clk_disable(sdma->clk_ahb);
 
 	return 0;
 
 err_dma_alloc:
-	clk_disable(sdma->clk);
+	clk_disable(sdma->clk_ipg);
+	clk_disable(sdma->clk_ahb);
 	dev_err(sdma->dev, "initialisation failed with %d\n", ret);
 	return ret;
 }
@@ -1313,12 +1321,21 @@ static int __init sdma_probe(struct platform_device *pdev)
 		goto err_request_region;
 	}
 
-	sdma->clk = clk_get(&pdev->dev, NULL);
-	if (IS_ERR(sdma->clk)) {
-		ret = PTR_ERR(sdma->clk);
+	sdma->clk_ipg = devm_clk_get(&pdev->dev, "ipg");
+	if (IS_ERR(sdma->clk_ipg)) {
+		ret = PTR_ERR(sdma->clk_ipg);
 		goto err_clk;
 	}
 
+	sdma->clk_ahb = devm_clk_get(&pdev->dev, "ahb");
+	if (IS_ERR(sdma->clk_ahb)) {
+		ret = PTR_ERR(sdma->clk_ahb);
+		goto err_clk;
+	}
+
+	clk_prepare(sdma->clk_ipg);
+	clk_prepare(sdma->clk_ahb);
+
 	sdma->regs = ioremap(iores->start, resource_size(iores));
 	if (!sdma->regs) {
 		ret = -ENOMEM;
@@ -1426,7 +1443,6 @@ err_alloc:
 err_request_irq:
 	iounmap(sdma->regs);
 err_ioremap:
-	clk_put(sdma->clk);
 err_clk:
 	release_mem_region(iores->start, resource_size(iores));
 err_request_region:
diff --git a/drivers/dma/ipu/ipu_idmac.c b/drivers/dma/ipu/ipu_idmac.c
index 62e3f8e..5ec7204 100644
--- a/drivers/dma/ipu/ipu_idmac.c
+++ b/drivers/dma/ipu/ipu_idmac.c
@@ -1715,7 +1715,7 @@ static int __init ipu_probe(struct platform_device *pdev)
 	}
 
 	/* Make sure IPU HSP clock is running */
-	clk_enable(ipu_data.ipu_clk);
+	clk_prepare_enable(ipu_data.ipu_clk);
 
 	/* Disable all interrupts */
 	idmac_write_ipureg(&ipu_data, 0, IPU_INT_CTRL_1);
@@ -1747,7 +1747,7 @@ static int __init ipu_probe(struct platform_device *pdev)
 err_idmac_init:
 err_attach_irq:
 	ipu_irq_detach_irq(&ipu_data, pdev);
-	clk_disable(ipu_data.ipu_clk);
+	clk_disable_unprepare(ipu_data.ipu_clk);
 	clk_put(ipu_data.ipu_clk);
 err_clk_get:
 	iounmap(ipu_data.reg_ic);
@@ -1765,7 +1765,7 @@ static int __exit ipu_remove(struct platform_device *pdev)
 
 	ipu_idmac_exit(ipu);
 	ipu_irq_detach_irq(ipu, pdev);
-	clk_disable(ipu->ipu_clk);
+	clk_disable_unprepare(ipu->ipu_clk);
 	clk_put(ipu->ipu_clk);
 	iounmap(ipu->reg_ic);
 	iounmap(ipu->reg_ipu);