diff options
| author |   Peter Ujfalusi <peter.ujfalusi@ti.com> | 2012-03-08 13:34:16 +0200 |
|---|---|---|
| committer |   Liam Girdwood <lrg@ti.com> | 2012-03-12 13:34:23 +0000 |
| commit | 5788c62e72b8484836ae6587c7fb65757a777a3a (patch) | |
| tree | b0d943dd164abc2a58c3da43342615cf62609be4 /sound | |
| parent | ASoC: omap-mcbsp: Single function CLKR/FSR source mux configuration (diff) | |
| download | linux-dev-5788c62e72b8484836ae6587c7fb65757a777a3a.tar.xz linux-dev-5788c62e72b8484836ae6587c7fb65757a777a3a.zip | |
ASoC: omap-mcbsp: Correct clock muxing for CLKR/FSR signals
Remove the no longer valid check for McBSP1 regarding to signal mux
selection (on OMAP4 McBSP4 has 6 pin setup).
Only clear the srgr2, pcr0 register configuration if the requested clock
configuration will actually going to touch it. In this way we can avoid
issues if the CLKR/FSR mux has been configured after the clock selection.
We are going to check for the valid McBSP port in the
omap_mcbsp_6pin_src_mux() function based on the validity of the mux_signal
callback (which is only valid for ports having 6 pin setup).
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Liam Girdwood <lrg@ti.com>
Diffstat (limited to 'sound')
| -rw-r--r-- | sound/soc/omap/mcbsp.c | 9 | ||||
| -rw-r--r-- | sound/soc/omap/omap-mcbsp.c | 34 |
2 files changed, 19 insertions, 24 deletions
diff --git a/sound/soc/omap/mcbsp.c b/sound/soc/omap/mcbsp.c index 95413a168087..e5f44440d1b9 100644 --- a/sound/soc/omap/mcbsp.c +++ b/sound/soc/omap/mcbsp.c @@ -690,7 +690,9 @@ int omap2_mcbsp_set_clks_src(struct omap_mcbsp *mcbsp, u8 fck_src_id) int omap_mcbsp_6pin_src_mux(struct omap_mcbsp *mcbsp, u8 mux) { const char *signal, *src; - int ret = 0; + + if (mcbsp->pdata->mux_signal) + return -EINVAL; switch (mux) { case CLKR_SRC_CLKR: @@ -713,10 +715,7 @@ int omap_mcbsp_6pin_src_mux(struct omap_mcbsp *mcbsp, u8 mux) return -EINVAL; } - if (mcbsp->pdata->mux_signal) - ret = mcbsp->pdata->mux_signal(mcbsp->dev, signal, src); - - return ret; + return mcbsp->pdata->mux_signal(mcbsp->dev, signal, src); } #define max_thres(m) (mcbsp->pdata->buffer_size) diff --git a/sound/soc/omap/omap-mcbsp.c b/sound/soc/omap/omap-mcbsp.c index d8409b008431..626e2d6db20e 100644 --- a/sound/soc/omap/omap-mcbsp.c +++ b/sound/soc/omap/omap-mcbsp.c @@ -511,17 +511,21 @@ static int omap_mcbsp_dai_set_dai_sysclk(struct snd_soc_dai *cpu_dai, return -EBUSY; } - /* The McBSP signal muxing functions are only available on McBSP1 */ - if (clk_id == OMAP_MCBSP_CLKR_SRC_CLKR || - clk_id == OMAP_MCBSP_CLKR_SRC_CLKX || - clk_id == OMAP_MCBSP_FSR_SRC_FSR || - clk_id == OMAP_MCBSP_FSR_SRC_FSX) - if (cpu_class_is_omap1() || cpu_dai->id != 1) - return -EINVAL; - - mcbsp->in_freq = freq; - regs->srgr2 &= ~CLKSM; - regs->pcr0 &= ~SCLKME; + if (clk_id == OMAP_MCBSP_SYSCLK_CLK || + clk_id == OMAP_MCBSP_SYSCLK_CLKS_FCLK || + clk_id == OMAP_MCBSP_SYSCLK_CLKS_EXT || + clk_id == OMAP_MCBSP_SYSCLK_CLKX_EXT || + clk_id == OMAP_MCBSP_SYSCLK_CLKR_EXT) { + mcbsp->in_freq = freq; + regs->srgr2 &= ~CLKSM; + regs->pcr0 &= ~SCLKME; + } else if (cpu_class_is_omap1()) { + /* + * McBSP CLKR/FSR signal muxing functions are only available on + * OMAP2 or newer versions + */ + return -EINVAL; + } switch (clk_id) { case OMAP_MCBSP_SYSCLK_CLK: @@ -552,23 +556,15 @@ static int omap_mcbsp_dai_set_dai_sysclk(struct snd_soc_dai *cpu_dai, case OMAP_MCBSP_CLKR_SRC_CLKR: - if (cpu_class_is_omap1()) - break; err = omap_mcbsp_6pin_src_mux(mcbsp, CLKR_SRC_CLKR); break; case OMAP_MCBSP_CLKR_SRC_CLKX: - if (cpu_class_is_omap1()) - break; err = omap_mcbsp_6pin_src_mux(mcbsp, CLKR_SRC_CLKX); break; case OMAP_MCBSP_FSR_SRC_FSR: - if (cpu_class_is_omap1()) - break; err = omap_mcbsp_6pin_src_mux(mcbsp, FSR_SRC_FSR); break; case OMAP_MCBSP_FSR_SRC_FSX: - if (cpu_class_is_omap1()) - break; err = omap_mcbsp_6pin_src_mux(mcbsp, FSR_SRC_FSX); break; default: |