From 1cccd2a728673da00a05fe19c5ba4897257d6b8a Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Thu, 29 Nov 2007 15:38:16 -0800 Subject: [PATCH] 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 --- arch/arm/plat-omap/mcbsp.c | 11 +++++++++++ 1 file changed, 11 insertions(+) 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); -- 2.39.5