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authorTony Lindgren <tony@atomide.com>2007-11-29 18:38:16 -0500
committerTony Lindgren <tony@atomide.com>2008-02-08 13:37:57 -0500
commit1cccd2a728673da00a05fe19c5ba4897257d6b8a (patch)
treeaf517aac0c76d0ba75e9541c891f27b28919f146 /arch/arm
parenta4ffc0a0b240a29cbe489f6db9dae112a49ef1c1 (diff)
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>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/plat-omap/mcbsp.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/arm/plat-omap/mcbsp.c b/arch/arm/plat-omap/mcbsp.c
index 2af5bd5a1344..9cf83c4da9fa 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)
201static void omap_mcbsp_dsp_request(void) 201static void omap_mcbsp_dsp_request(void)
202{ 202{
203 if (cpu_is_omap15xx() || cpu_is_omap16xx()) { 203 if (cpu_is_omap15xx() || cpu_is_omap16xx()) {
204 int ret;
205
206 ret = omap_dsp_request_mem();
207 if (ret < 0) {
208 printk(KERN_ERR "Could not get dsp memory: %i\n", ret);
209 return;
210 }
211
204 clk_enable(mcbsp_dsp_ck); 212 clk_enable(mcbsp_dsp_ck);
205 clk_enable(mcbsp_api_ck); 213 clk_enable(mcbsp_api_ck);
206 214
@@ -219,6 +227,7 @@ static void omap_mcbsp_dsp_request(void)
219static void omap_mcbsp_dsp_free(void) 227static void omap_mcbsp_dsp_free(void)
220{ 228{
221 if (cpu_is_omap15xx() || cpu_is_omap16xx()) { 229 if (cpu_is_omap15xx() || cpu_is_omap16xx()) {
230 omap_dsp_release_mem();
222 clk_disable(mcbsp_dspxor_ck); 231 clk_disable(mcbsp_dspxor_ck);
223 clk_disable(mcbsp_dsp_ck); 232 clk_disable(mcbsp_dsp_ck);
224 clk_disable(mcbsp_api_ck); 233 clk_disable(mcbsp_api_ck);
@@ -1024,6 +1033,8 @@ EXPORT_SYMBOL(omap_mcbsp_set_io_type);
1024EXPORT_SYMBOL(omap_mcbsp_free); 1033EXPORT_SYMBOL(omap_mcbsp_free);
1025EXPORT_SYMBOL(omap_mcbsp_start); 1034EXPORT_SYMBOL(omap_mcbsp_start);
1026EXPORT_SYMBOL(omap_mcbsp_stop); 1035EXPORT_SYMBOL(omap_mcbsp_stop);
1036EXPORT_SYMBOL(omap_mcbsp_pollread);
1037EXPORT_SYMBOL(omap_mcbsp_pollwrite);
1027EXPORT_SYMBOL(omap_mcbsp_xmit_word); 1038EXPORT_SYMBOL(omap_mcbsp_xmit_word);
1028EXPORT_SYMBOL(omap_mcbsp_recv_word); 1039EXPORT_SYMBOL(omap_mcbsp_recv_word);
1029EXPORT_SYMBOL(omap_mcbsp_xmit_buffer); 1040EXPORT_SYMBOL(omap_mcbsp_xmit_buffer);