diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mach-omap2/mcbsp.c | 26 | ||||
| -rw-r--r-- | arch/arm/plat-omap/include/plat/mcbsp.h | 1 | ||||
| -rw-r--r-- | arch/arm/plat-omap/mcbsp.c | 18 |
3 files changed, 31 insertions, 14 deletions
diff --git a/arch/arm/mach-omap2/mcbsp.c b/arch/arm/mach-omap2/mcbsp.c index d6cce00a730b..92bd5e22a24e 100644 --- a/arch/arm/mach-omap2/mcbsp.c +++ b/arch/arm/mach-omap2/mcbsp.c @@ -27,6 +27,13 @@ #include "control.h" +/* + * FIXME: Find a mechanism to enable/disable runtime the McBSP ICLK autoidle. + * Sidetone needs non-gated ICLK and sidetone autoidle is broken. + */ +#include "cm2xxx_3xxx.h" +#include "cm-regbits-34xx.h" + /* McBSP internal signal muxing functions */ void omap2_mcbsp1_mux_clkr_src(u8 mux) @@ -102,6 +109,24 @@ int omap2_mcbsp_set_clks_src(u8 id, u8 fck_src_id) } EXPORT_SYMBOL(omap2_mcbsp_set_clks_src); +static int omap3_enable_st_clock(unsigned int id, bool enable) +{ + unsigned int w; + + /* + * Sidetone uses McBSP ICLK - which must not idle when sidetones + * are enabled or sidetones start sounding ugly. + */ + w = omap2_cm_read_mod_reg(OMAP3430_PER_MOD, CM_AUTOIDLE); + if (enable) + w &= ~(1 << (id - 2)); + else + w |= 1 << (id - 2); + omap2_cm_write_mod_reg(w, OMAP3430_PER_MOD, CM_AUTOIDLE); + + return 0; +} + struct omap_device_pm_latency omap2_mcbsp_latency[] = { { .deactivate_func = omap_device_idle_hwmods, @@ -151,6 +176,7 @@ static int omap_init_mcbsp(struct omap_hwmod *oh, void *unused) if (oh->dev_attr) { oh_device[1] = omap_hwmod_lookup(( (struct omap_mcbsp_dev_attr *)(oh->dev_attr))->sidetone); + pdata->enable_st_clock = omap3_enable_st_clock; count++; } pdev = omap_device_build_ss(name, id, oh_device, count, pdata, diff --git a/arch/arm/plat-omap/include/plat/mcbsp.h b/arch/arm/plat-omap/include/plat/mcbsp.h index 648344a89a94..e451a6e8b065 100644 --- a/arch/arm/plat-omap/include/plat/mcbsp.h +++ b/arch/arm/plat-omap/include/plat/mcbsp.h @@ -321,6 +321,7 @@ struct omap_mcbsp_platform_data { /* McBSP platform and instance specific features */ bool has_wakeup; /* Wakeup capability */ bool has_ccr; /* Transceiver has configuration control registers */ + int (*enable_st_clock)(unsigned int, bool); }; struct omap_mcbsp_st_data { diff --git a/arch/arm/plat-omap/mcbsp.c b/arch/arm/plat-omap/mcbsp.c index 3ad536ea6c37..e96d747fbd80 100644 --- a/arch/arm/plat-omap/mcbsp.c +++ b/arch/arm/plat-omap/mcbsp.c @@ -26,10 +26,6 @@ #include <plat/mcbsp.h> #include <linux/pm_runtime.h> -/* XXX These "sideways" includes are a sign that something is wrong */ -#include "../mach-omap2/cm2xxx_3xxx.h" -#include "../mach-omap2/cm-regbits-34xx.h" - struct omap_mcbsp **mcbsp_ptr; int omap_mcbsp_count; @@ -257,13 +253,8 @@ static void omap_st_on(struct omap_mcbsp *mcbsp) { unsigned int w; - /* - * Sidetone uses McBSP ICLK - which must not idle when sidetones - * are enabled or sidetones start sounding ugly. - */ - w = omap2_cm_read_mod_reg(OMAP3430_PER_MOD, CM_AUTOIDLE); - w &= ~(1 << (mcbsp->id - 2)); - omap2_cm_write_mod_reg(w, OMAP3430_PER_MOD, CM_AUTOIDLE); + if (mcbsp->pdata->enable_st_clock) + mcbsp->pdata->enable_st_clock(mcbsp->id, 1); /* Enable McBSP Sidetone */ w = MCBSP_READ(mcbsp, SSELCR); @@ -284,9 +275,8 @@ static void omap_st_off(struct omap_mcbsp *mcbsp) w = MCBSP_READ(mcbsp, SSELCR); MCBSP_WRITE(mcbsp, SSELCR, w & ~(SIDETONEEN)); - w = omap2_cm_read_mod_reg(OMAP3430_PER_MOD, CM_AUTOIDLE); - w |= 1 << (mcbsp->id - 2); - omap2_cm_write_mod_reg(w, OMAP3430_PER_MOD, CM_AUTOIDLE); + if (mcbsp->pdata->enable_st_clock) + mcbsp->pdata->enable_st_clock(mcbsp->id, 0); } static void omap_st_fir_write(struct omap_mcbsp *mcbsp, s16 *fir) |