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 2af5bd5..9cf83c4 100644
--- a/arch/arm/plat-omap/mcbsp.c
+++ b/arch/arm/plat-omap/mcbsp.c
@@ -201,6 +201,14 @@
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_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_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);