Merge tag 'imx-common-clk' of git://git.pengutronix.de/git/imx/linux-2.6 into next/clock

Sascha Hauer <s.hauer@pengutronix.de> writes:

 ARM i.MX common clock framework support

 Same as with Shawns series this one depends on:
   git://git.linaro.org/people/mturquette/linux.git clk-next
   http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-arm.git clkdev

* tag 'imx-common-clk' of git://git.pengutronix.de/git/imx/linux-2.6: (34 commits)
  ARM i.MX: remove now unused clock files
  ARM: i.MX6: implement clocks using common clock framework
  ARM i.MX35: implement clocks using common clock framework
  ARM i.MX5: implement clocks using common clock framework
  ARM i.MX31: implement clocks using common clock framework
  ARM i.MX27: implement clocks using common clock framework
  ARM i.MX21: implement clocks using common clock framework
  ARM i.MX1: implement clocks using common clock framework
  ARM i.MX25: implement clocks using common clock framework
  ARM: imx: add common clock support for clk busy
  ARM: imx: add common clock support for pfd
  ARM i.MX: Add common clock support for 2bit gate
  ARM: imx: add common clock support for pllv3
  ARM i.MX: Add common clock support for pllv2
  ARM i.MX: Add common clock support for pllv1
  ARM i.MX: prepare for common clock framework
  ARM i.MX3: Make ccm base address a variable
  ARM i.MX timer: request correct clock
  ARM i.MX5: prepare gpc_dvfs_clk
  rtc: imx dryice: Add missing clk_prepare
  ...

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

1 files changed, 23 insertions, 15 deletions

diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index e7feceeebc2f..267ec6da5af2 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -204,7 +204,8 @@ struct imx_port {
 	unsigned int		irda_inv_rx:1;
 	unsigned int		irda_inv_tx:1;
 	unsigned short		trcv_delay; /* transceiver delay */
-	struct clk		*clk;
+	struct clk		*clk_ipg;
+	struct clk		*clk_per;
 	struct imx_uart_data	*devdata;
 };
 
@@ -672,7 +673,7 @@ static int imx_setup_ufcr(struct imx_port *sport, unsigned int mode)
 	 * RFDIV is set such way to satisfy requested uartclk value
 	 */
 	val = TXTL << 10 | RXTL;
-	ufcr_rfdiv = (clk_get_rate(sport->clk) + sport->port.uartclk / 2)
+	ufcr_rfdiv = (clk_get_rate(sport->clk_per) + sport->port.uartclk / 2)
 			/ sport->port.uartclk;
 
 	if(!ufcr_rfdiv)
@@ -1285,7 +1286,7 @@ imx_console_get_options(struct imx_port *sport, int *baud,
 		else
 			ucfr_rfdiv = 6 - ucfr_rfdiv;
 
-		uartclk = clk_get_rate(sport->clk);
+		uartclk = clk_get_rate(sport->clk_per);
 		uartclk /= ucfr_rfdiv;
 
 		{	/*
@@ -1503,14 +1504,22 @@ static int serial_imx_probe(struct platform_device *pdev)
 	sport->timer.function = imx_timeout;
 	sport->timer.data     = (unsigned long)sport;
 
-	sport->clk = clk_get(&pdev->dev, "uart");
-	if (IS_ERR(sport->clk)) {
-		ret = PTR_ERR(sport->clk);
+	sport->clk_ipg = devm_clk_get(&pdev->dev, "ipg");
+	if (IS_ERR(sport->clk_ipg)) {
+		ret = PTR_ERR(sport->clk_ipg);
 		goto unmap;
 	}
-	clk_prepare_enable(sport->clk);
 
-	sport->port.uartclk = clk_get_rate(sport->clk);
+	sport->clk_per = devm_clk_get(&pdev->dev, "per");
+	if (IS_ERR(sport->clk_per)) {
+		ret = PTR_ERR(sport->clk_per);
+		goto unmap;
+	}
+
+	clk_prepare_enable(sport->clk_per);
+	clk_prepare_enable(sport->clk_ipg);
+
+	sport->port.uartclk = clk_get_rate(sport->clk_per);
 
 	imx_ports[sport->port.line] = sport;
 
@@ -1531,8 +1540,8 @@ deinit:
 	if (pdata && pdata->exit)
 		pdata->exit(pdev);
 clkput:
-	clk_disable_unprepare(sport->clk);
-	clk_put(sport->clk);
+	clk_disable_unprepare(sport->clk_per);
+	clk_disable_unprepare(sport->clk_ipg);
 unmap:
 	iounmap(sport->port.membase);
 free:
@@ -1550,11 +1559,10 @@ static int serial_imx_remove(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, NULL);
 
-	if (sport) {
-		uart_remove_one_port(&imx_reg, &sport->port);
-		clk_disable_unprepare(sport->clk);
-		clk_put(sport->clk);
-	}
+	uart_remove_one_port(&imx_reg, &sport->port);
+
+	clk_disable_unprepare(sport->clk_per);
+	clk_disable_unprepare(sport->clk_ipg);
 
 	if (pdata && pdata->exit)
 		pdata->exit(pdev);