linux-kernel - [PATCH v2 22/23] ARM: LPC32xx: Move i2s1 dma enabling to clock.c

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Date:	Thu, 14 Jun 2012 18:51:12 +0200
From:	Roland Stigge <stigge@...com.de>
To:	arm@...nel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org, kevin.wells@....com,
	srinivas.bakki@....com, aletes.xgr@...il.com
Cc:	Roland Stigge <stigge@...com.de>
Subject: [PATCH v2 22/23] ARM: LPC32xx: Move i2s1 dma enabling to clock.c

From: Alexandre Pereira da Silva <aletes.xgr@...il.com>

Move i2s1 dma init to be done when it's clock is enabled.

Signed-off-by: Alexandre Pereira da Silva <aletes.xgr@...il.com>
Signed-off-by: Roland Stigge <stigge@...com.de>
---
 arch/arm/mach-lpc32xx/clock.c   |    3 ++-
 arch/arm/mach-lpc32xx/phy3250.c |    5 -----
 2 files changed, 2 insertions(+), 6 deletions(-)

--- linux-2.6.orig/arch/arm/mach-lpc32xx/clock.c
+++ linux-2.6/arch/arm/mach-lpc32xx/clock.c
@@ -718,7 +718,8 @@ static struct clk clk_i2s1 = {
 	.parent		= &clk_hclk,
 	.enable		= local_onoff_enable,
 	.enable_reg	= LPC32XX_CLKPWR_I2S_CLK_CTRL,
-	.enable_mask	= LPC32XX_CLKPWR_I2SCTRL_I2SCLK1_EN,
+	.enable_mask	= LPC32XX_CLKPWR_I2SCTRL_I2SCLK1_EN |
+			  LPC32XX_CLKPWR_I2SCTRL_I2S1_USE_DMA,
 	.get_rate	= local_return_parent_rate,
 };
 
--- linux-2.6.orig/arch/arm/mach-lpc32xx/phy3250.c
+++ linux-2.6/arch/arm/mach-lpc32xx/phy3250.c
@@ -260,11 +260,6 @@ static void __init lpc3250_machine_init(
 		LPC32XX_CLKPWR_I2CCLK_I2C2HI_DRIVE;
 	__raw_writel(tmp, LPC32XX_CLKPWR_I2C_CLK_CTRL);
 
-	/* Enable DMA for I2S1 channel */
-	tmp = __raw_readl(LPC32XX_CLKPWR_I2S_CLK_CTRL);
-	tmp = LPC32XX_CLKPWR_I2SCTRL_I2S1_USE_DMA;
-	__raw_writel(tmp, LPC32XX_CLKPWR_I2S_CLK_CTRL);
-
 	lpc32xx_serial_init();
 
 	tmp = __raw_readl(LPC32XX_CLKPWR_MS_CTRL);
--
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