---

yaml
---
r: 157689
b: refs/heads/master
c: 2122fdc
h: refs/heads/master
i:
  157687: 869b725
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 98cb20e88957faf9c99e194242caac7f55dd47e4
+refs/heads/master: 2122fdc629f05634537e796c0630028e4db76953

trunk/arch/arm/plat-omap/include/mach/mcbsp.h

@@ -138,6 +138,7 @@
 #define OMAP_MCBSP_REG_THRSH1	0x94
 #define OMAP_MCBSP_REG_IRQST	0xA0
 #define OMAP_MCBSP_REG_IRQEN	0xA4
+#define OMAP_MCBSP_REG_WAKEUPEN	0xA8
 #define OMAP_MCBSP_REG_XCCR	0xAC
 #define OMAP_MCBSP_REG_RCCR	0xB0
 
@@ -253,13 +254,29 @@
 #define RDISABLE		0x0001
 
 /********************** McBSP SYSCONFIG bit definitions ********************/
+#define SIDLEMODE(value)	((value)<<3)
+#define ENAWAKEUP		0x0004
 #define SOFTRST			0x0002
 
 /********************** McBSP DMA operating modes **************************/
 #define MCBSP_DMA_MODE_ELEMENT		0
 #define MCBSP_DMA_MODE_THRESHOLD	1
 #define MCBSP_DMA_MODE_FRAME		2
 
+/********************** McBSP WAKEUPEN bit definitions *********************/
+#define XEMPTYEOFEN		0x4000
+#define XRDYEN			0x0400
+#define XEOFEN			0x0200
+#define XFSXEN			0x0100
+#define XSYNCERREN		0x0080
+#define RRDYEN			0x0008
+#define REOFEN			0x0004
+#define RFSREN			0x0002
+#define RSYNCERREN		0x0001
+#define WAKEUPEN_ALL		(XEMPTYEOFEN | XRDYEN | XEOFEN | XFSXEN | \
+				 XSYNCERREN | RRDYEN | REOFEN | RFSREN | \
+				 RSYNCERREN)
+
 /* we don't do multichannel for now */
 struct omap_mcbsp_reg_cfg {
 	u16 spcr2;

trunk/arch/arm/plat-omap/mcbsp.c

@@ -305,6 +305,46 @@ int omap_mcbsp_get_dma_op_mode(unsigned int id)
 	return dma_op_mode;
 }
 EXPORT_SYMBOL(omap_mcbsp_get_dma_op_mode);
+
+static inline void omap34xx_mcbsp_request(struct omap_mcbsp *mcbsp)
+{
+	/*
+	 * Enable wakup behavior, smart idle and all wakeups
+	 * REVISIT: some wakeups may be unnecessary
+	 */
+	if (cpu_is_omap34xx()) {
+		u16 syscon;
+
+		syscon = OMAP_MCBSP_READ(mcbsp->io_base, SYSCON);
+		syscon &= ~(ENAWAKEUP | SIDLEMODE(0x03));
+		syscon |= (ENAWAKEUP | SIDLEMODE(0x02));
+		OMAP_MCBSP_WRITE(mcbsp->io_base, SYSCON, syscon);
+
+		OMAP_MCBSP_WRITE(mcbsp->io_base, WAKEUPEN, WAKEUPEN_ALL);
+	}
+}
+
+static inline void omap34xx_mcbsp_free(struct omap_mcbsp *mcbsp)
+{
+	/*
+	 * Disable wakup behavior, smart idle and all wakeups
+	 */
+	if (cpu_is_omap34xx()) {
+		u16 syscon;
+		u16 wakeupen;
+
+		syscon = OMAP_MCBSP_READ(mcbsp->io_base, SYSCON);
+		syscon &= ~(ENAWAKEUP | SIDLEMODE(0x03));
+		OMAP_MCBSP_WRITE(mcbsp->io_base, SYSCON, syscon);
+
+		wakeupen = OMAP_MCBSP_READ(mcbsp->io_base, WAKEUPEN);
+		wakeupen &= ~WAKEUPEN_ALL;
+		OMAP_MCBSP_WRITE(mcbsp->io_base, WAKEUPEN, wakeupen);
+	}
+}
+#else
+static inline void omap34xx_mcbsp_request(struct omap_mcbsp *mcbsp) {}
+static inline void omap34xx_mcbsp_free(struct omap_mcbsp *mcbsp) {}
 #endif
 
 /*
@@ -366,6 +406,9 @@ int omap_mcbsp_request(unsigned int id)
 	clk_enable(mcbsp->iclk);
 	clk_enable(mcbsp->fclk);
 
+	/* Do procedure specific to omap34xx arch, if applicable */
+	omap34xx_mcbsp_request(mcbsp);
+
 	/*
 	 * Make sure that transmitter, receiver and sample-rate generator are
 	 * not running before activating IRQs.
@@ -414,6 +457,9 @@ void omap_mcbsp_free(unsigned int id)
 	if (mcbsp->pdata && mcbsp->pdata->ops && mcbsp->pdata->ops->free)
 		mcbsp->pdata->ops->free(id);
 
+	/* Do procedure specific to omap34xx arch, if applicable */
+	omap34xx_mcbsp_free(mcbsp);
+
 	clk_disable(mcbsp->fclk);
 	clk_disable(mcbsp->iclk);