From: Tony Lindgren <tony@atomide.com>
Date: Thu, 29 Nov 2007 23:38:16 +0000 (-0800)
Subject: ARM: OMAP: Request DSP memory for McBSP
X-Git-Tag: v2.6.25-rc1~1^2^2~18
X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1cccd2a728673da00a05fe19c5ba4897257d6b8a;p=linux-2.6

ARM: OMAP: Request DSP memory for McBSP

On OMAP1 some McBSP features depend on DSP. Also export
polling functions as suggested by Luis Cargnini.

Signed-off-by: Tony Lindgren <tony@atomide.com>
---

diff --git a/arch/arm/plat-omap/mcbsp.c b/arch/arm/plat-omap/mcbsp.c
index 2af5bd5a13..9cf83c4da9 100644
--- a/arch/arm/plat-omap/mcbsp.c
+++ b/arch/arm/plat-omap/mcbsp.c
@@ -201,6 +201,14 @@ static int omap_mcbsp_check(unsigned int id)
 static void omap_mcbsp_dsp_request(void)
 {
 	if (cpu_is_omap15xx() || cpu_is_omap16xx()) {
+		int ret;
+
+		ret = omap_dsp_request_mem();
+		if (ret < 0) {
+			printk(KERN_ERR "Could not get dsp memory: %i\n", ret);
+			return;
+		}
+
 		clk_enable(mcbsp_dsp_ck);
 		clk_enable(mcbsp_api_ck);
 
@@ -219,6 +227,7 @@ static void omap_mcbsp_dsp_request(void)
 static void omap_mcbsp_dsp_free(void)
 {
 	if (cpu_is_omap15xx() || cpu_is_omap16xx()) {
+		omap_dsp_release_mem();
 		clk_disable(mcbsp_dspxor_ck);
 		clk_disable(mcbsp_dsp_ck);
 		clk_disable(mcbsp_api_ck);
@@ -1024,6 +1033,8 @@ EXPORT_SYMBOL(omap_mcbsp_set_io_type);
 EXPORT_SYMBOL(omap_mcbsp_free);
 EXPORT_SYMBOL(omap_mcbsp_start);
 EXPORT_SYMBOL(omap_mcbsp_stop);
+EXPORT_SYMBOL(omap_mcbsp_pollread);
+EXPORT_SYMBOL(omap_mcbsp_pollwrite);
 EXPORT_SYMBOL(omap_mcbsp_xmit_word);
 EXPORT_SYMBOL(omap_mcbsp_recv_word);
 EXPORT_SYMBOL(omap_mcbsp_xmit_buffer);