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| author |   Peter Ujfalusi <peter.ujfalusi@ti.com> | 2016-05-30 11:23:49 +0300 |
|---|---|---|
| committer |   Tony Lindgren <tony@atomide.com> | 2016-06-10 05:07:24 -0700 |
| commit | bbfa26c530c108ddb8f5305a1a93756b6a767d88 (patch) | |
| tree | c99417326f40d47c103475f33a6afedaa0ab9868 /sound/soc/omap/mcbsp.c | |
| parent | ASoC: omap-mcbsp: Rename omap_mcbsp_sysfs_remove() to omap_mcbsp_cleanup() (diff) | |
| download | wireguard-linux-bbfa26c530c108ddb8f5305a1a93756b6a767d88.tar.xz wireguard-linux-bbfa26c530c108ddb8f5305a1a93756b6a767d88.zip | |
ASoC: omap-mcbsp: sidetone: Use the new callback for iclk handling
The McBSP sidetone (in OMAP3 McBSP2 and 3 module) is working with the
module's interface clock. When the sidetone is enabled the iclk must not
idle because it will result in choppy sidetone.
Switch to use the new callback for handling the iclk allow/deny idle
configuration.
For this the driver needs to get the module's ick clock and pass the clk
pointer to the callback.
In DT boot, the pdata-quirk is going to set up the callback for the driver
so save it if it is set in the pdata of the device.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'sound/soc/omap/mcbsp.c')
| -rw-r--r-- | sound/soc/omap/mcbsp.c | 19 |
1 files changed, 14 insertions, 5 deletions
diff --git a/sound/soc/omap/mcbsp.c b/sound/soc/omap/mcbsp.c index ace73b97769f..76ce33199bf9 100644 --- a/sound/soc/omap/mcbsp.c +++ b/sound/soc/omap/mcbsp.c @@ -257,8 +257,8 @@ static void omap_st_on(struct omap_mcbsp *mcbsp) { unsigned int w; - if (mcbsp->pdata->enable_st_clock) - mcbsp->pdata->enable_st_clock(mcbsp->id, 1); + if (mcbsp->pdata->force_ick_on) + mcbsp->pdata->force_ick_on(mcbsp->st_data->mcbsp_iclk, true); /* Disable Sidetone clock auto-gating for normal operation */ w = MCBSP_ST_READ(mcbsp, SYSCONFIG); @@ -287,8 +287,8 @@ static void omap_st_off(struct omap_mcbsp *mcbsp) w = MCBSP_ST_READ(mcbsp, SYSCONFIG); MCBSP_ST_WRITE(mcbsp, SYSCONFIG, w | ST_AUTOIDLE); - if (mcbsp->pdata->enable_st_clock) - mcbsp->pdata->enable_st_clock(mcbsp->id, 0); + if (mcbsp->pdata->force_ick_on) + mcbsp->pdata->force_ick_on(mcbsp->st_data->mcbsp_iclk, false); } static void omap_st_fir_write(struct omap_mcbsp *mcbsp, s16 *fir) @@ -946,6 +946,13 @@ static int omap_st_add(struct omap_mcbsp *mcbsp, struct resource *res) if (!st_data) return -ENOMEM; + st_data->mcbsp_iclk = clk_get(mcbsp->dev, "ick"); + if (IS_ERR(st_data->mcbsp_iclk)) { + dev_warn(mcbsp->dev, + "Failed to get ick, sidetone might be broken\n"); + st_data->mcbsp_iclk = NULL; + } + st_data->io_base_st = devm_ioremap(mcbsp->dev, res->start, resource_size(res)); if (!st_data->io_base_st) @@ -1093,6 +1100,8 @@ void omap_mcbsp_cleanup(struct omap_mcbsp *mcbsp) if (mcbsp->pdata->buffer_size) sysfs_remove_group(&mcbsp->dev->kobj, &additional_attr_group); - if (mcbsp->st_data) + if (mcbsp->st_data) { sysfs_remove_group(&mcbsp->dev->kobj, &sidetone_attr_group); + clk_put(mcbsp->st_data->mcbsp_iclk); + } } |