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ARM: OMAP: Request DSP memory for McBSP

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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>
This commit is contained in:
Tony Lindgren 2007-11-29 15:38:16 -08:00
parent a4ffc0a0b2
commit 1cccd2a728
1 changed files with 11 additions and 0 deletions
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11
arch/arm/plat-omap/mcbsp.c
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@ -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);