ARM/ASoC: omap-mcbsp: Remove CLKR/FSR mux configuration code

Remove the feature to configure the CLKR/FSR mux on McBSP port with 6pin
configuration.
When moving to devicetree these callback can no longer be used in a clean
way anymore.
If a board require to change the 6pin port to work in 4pin setup it needs
to set up the mux in the board file.
For OMAP2/3:
u32 devconf0;

/* McBSP1 CLKR/FSR signal to be connected to CLKX/FSX pin */
devconf0 = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0);
devconf0 |=  OMAP2_MCBSP1_CLKR_MASK | OMAP2_MCBSP1_FSR_MASK;
omap_ctrl_writel(devconf0, OMAP2_CONTROL_DEVCONF0);

For OMAP4:
u32 mcbsp_pad;

/* McBSP4 CLKR/FSR signal to be connected to CLKX/FSX pin */
mcbsp_pad = omap4_ctrl_pad_readl(OMAP2_CONTROL_DEVCONF0);
mcbsp_pad |=  ((1 << 31) | (1 << 30));
omap4_ctrl_pad_writel(mcbsp_pad, OMAP2_CONTROL_DEVCONF0);

In case when the kernel is booted with DT blob the pinctrl-single will be
provided as soon as it is enabled on the platform.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Acked-by: Jarkko Nikula <jarkko.nikula@bitmer.com>
Acked-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>

3 files changed, 3 insertions, 36 deletions

diff --git a/sound/soc/omap/mcbsp.h b/sound/soc/omap/mcbsp.h
index 262a615..49a6725 100644
--- a/sound/soc/omap/mcbsp.h
+++ b/sound/soc/omap/mcbsp.h
@@ -334,9 +334,6 @@ void omap_mcbsp_stop(struct omap_mcbsp *mcbsp, int tx, int rx);
 /* McBSP functional clock source changing function */
 int omap2_mcbsp_set_clks_src(struct omap_mcbsp *mcbsp, u8 fck_src_id);
 
-/* McBSP signal muxing API */
-int omap_mcbsp_6pin_src_mux(struct omap_mcbsp *mcbsp, u8 mux);
-
 /* Sidetone specific API */
 int omap_st_set_chgain(struct omap_mcbsp *mcbsp, int channel, s16 chgain);
 int omap_st_get_chgain(struct omap_mcbsp *mcbsp, int channel, s16 *chgain);
diff --git a/sound/soc/omap/omap-mcbsp.c b/sound/soc/omap/omap-mcbsp.c
index 1046083..5061594 100644
--- a/sound/soc/omap/omap-mcbsp.c
+++ b/sound/soc/omap/omap-mcbsp.c
@@ -516,21 +516,9 @@ static int omap_mcbsp_dai_set_dai_sysclk(struct snd_soc_dai *cpu_dai,
 			return -EBUSY;
 	}
 
-	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;
-	}
+	mcbsp->in_freq = freq;
+	regs->srgr2 &= ~CLKSM;
+	regs->pcr0 &= ~SCLKME;
 
 	switch (clk_id) {
 	case OMAP_MCBSP_SYSCLK_CLK:
@@ -558,20 +546,6 @@ static int omap_mcbsp_dai_set_dai_sysclk(struct snd_soc_dai *cpu_dai,
 	case OMAP_MCBSP_SYSCLK_CLKR_EXT:
 		regs->pcr0	|= SCLKME;
 		break;
-
-
-	case OMAP_MCBSP_CLKR_SRC_CLKR:
-		err = omap_mcbsp_6pin_src_mux(mcbsp, CLKR_SRC_CLKR);
-		break;
-	case OMAP_MCBSP_CLKR_SRC_CLKX:
-		err = omap_mcbsp_6pin_src_mux(mcbsp, CLKR_SRC_CLKX);
-		break;
-	case OMAP_MCBSP_FSR_SRC_FSR:
-		err = omap_mcbsp_6pin_src_mux(mcbsp, FSR_SRC_FSR);
-		break;
-	case OMAP_MCBSP_FSR_SRC_FSX:
-		err = omap_mcbsp_6pin_src_mux(mcbsp, FSR_SRC_FSX);
-		break;
 	default:
 		err = -ENODEV;
 	}
diff --git a/sound/soc/omap/omap-mcbsp.h b/sound/soc/omap/omap-mcbsp.h
index f877b16..baebcee 100644
--- a/sound/soc/omap/omap-mcbsp.h
+++ b/sound/soc/omap/omap-mcbsp.h
@@ -32,10 +32,6 @@ enum omap_mcbsp_clksrg_clk {
 	OMAP_MCBSP_SYSCLK_CLK,		/* Internal ICLK */
 	OMAP_MCBSP_SYSCLK_CLKX_EXT,	/* External CLKX pin */
 	OMAP_MCBSP_SYSCLK_CLKR_EXT,	/* External CLKR pin */
-	OMAP_MCBSP_CLKR_SRC_CLKR,	/* CLKR from CLKR pin */
-	OMAP_MCBSP_CLKR_SRC_CLKX,	/* CLKR from CLKX pin */
-	OMAP_MCBSP_FSR_SRC_FSR,		/* FSR from FSR pin */
-	OMAP_MCBSP_FSR_SRC_FSX,		/* FSR from FSX pin */
 };
 
 /* McBSP dividers */