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ARM: OMAP3: McBSP: New callback for McBSP2/3 ICLK idle configuration

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McBSP2/3 module's sidetone module operates using the module's ICLK clock.
When the Sidetone is in use the interface clock of the module must not
idle. The new callback expects to receive the *clk of the module's ick and
not the id number of the McBSP. This will allow us more cleanups and going
to simplify the ICLK handling.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
This commit is contained in:
Peter Ujfalusi 2016-05-30 11:23:46 +03:00 committed by Tony Lindgren
parent 3b80c9bef8
commit 53ae95f6d5
2 changed files with 13 additions and 0 deletions
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12
arch/arm/mach-omap2/mcbsp.c
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@ -48,6 +48,17 @@ static int omap3_enable_st_clock(unsigned int id, bool enable)
return omap2_clk_allow_idle(mcbsp_iclks[id]);
}
static int omap3_mcbsp_force_ick_on(struct clk *clk, bool force_on)
{
if (!clk)
return 0;
if (force_on)
return omap2_clk_deny_idle(clk);
else
return omap2_clk_allow_idle(clk);
}
static int __init omap_init_mcbsp(struct omap_hwmod *oh, void *unused)
{
int id, count = 1;
@ -97,6 +108,7 @@ static int __init omap_init_mcbsp(struct omap_hwmod *oh, void *unused)
oh_device[1] = omap_hwmod_lookup((
(struct omap_mcbsp_dev_attr *)(oh->dev_attr))->sidetone);
pdata->enable_st_clock = omap3_enable_st_clock;
pdata->force_ick_on = omap3_mcbsp_force_ick_on;
sprintf(clk_name, "mcbsp%d_ick", id);
mcbsp_iclks[id] = clk_get(NULL, clk_name);
count++;

1
include/linux/platform_data/asoc-ti-mcbsp.h
View file

@ -45,6 +45,7 @@ struct omap_mcbsp_platform_data {
bool has_wakeup; /* Wakeup capability */
bool has_ccr; /* Transceiver has configuration control registers */
int (*enable_st_clock)(unsigned int, bool);
int (*force_ick_on)(struct clk *clk, bool force_on);
};
/**