diff options
Diffstat (limited to 'sound/soc/omap/omap-mcbsp.c')
-rw-r--r-- | sound/soc/omap/omap-mcbsp.c | 119 |
1 files changed, 29 insertions, 90 deletions
diff --git a/sound/soc/omap/omap-mcbsp.c b/sound/soc/omap/omap-mcbsp.c index 99696187b55a..d211c9fa5a91 100644 --- a/sound/soc/omap/omap-mcbsp.c +++ b/sound/soc/omap/omap-mcbsp.c | |||
@@ -31,7 +31,6 @@ | |||
31 | #include <sound/initval.h> | 31 | #include <sound/initval.h> |
32 | #include <sound/soc.h> | 32 | #include <sound/soc.h> |
33 | 33 | ||
34 | #include <plat/control.h> | ||
35 | #include <plat/dma.h> | 34 | #include <plat/dma.h> |
36 | #include <plat/mcbsp.h> | 35 | #include <plat/mcbsp.h> |
37 | #include "omap-mcbsp.h" | 36 | #include "omap-mcbsp.h" |
@@ -598,93 +597,6 @@ static int omap_mcbsp_dai_set_clkdiv(struct snd_soc_dai *cpu_dai, | |||
598 | return 0; | 597 | return 0; |
599 | } | 598 | } |
600 | 599 | ||
601 | static int omap_mcbsp_dai_set_clks_src(struct omap_mcbsp_data *mcbsp_data, | ||
602 | int clk_id) | ||
603 | { | ||
604 | int sel_bit; | ||
605 | u16 reg, reg_devconf1 = OMAP243X_CONTROL_DEVCONF1; | ||
606 | |||
607 | if (cpu_class_is_omap1()) { | ||
608 | /* OMAP1's can use only external source clock */ | ||
609 | if (unlikely(clk_id == OMAP_MCBSP_SYSCLK_CLKS_FCLK)) | ||
610 | return -EINVAL; | ||
611 | else | ||
612 | return 0; | ||
613 | } | ||
614 | |||
615 | if (cpu_is_omap2420() && mcbsp_data->bus_id > 1) | ||
616 | return -EINVAL; | ||
617 | |||
618 | if (cpu_is_omap343x()) | ||
619 | reg_devconf1 = OMAP343X_CONTROL_DEVCONF1; | ||
620 | |||
621 | switch (mcbsp_data->bus_id) { | ||
622 | case 0: | ||
623 | reg = OMAP2_CONTROL_DEVCONF0; | ||
624 | sel_bit = 2; | ||
625 | break; | ||
626 | case 1: | ||
627 | reg = OMAP2_CONTROL_DEVCONF0; | ||
628 | sel_bit = 6; | ||
629 | break; | ||
630 | case 2: | ||
631 | reg = reg_devconf1; | ||
632 | sel_bit = 0; | ||
633 | break; | ||
634 | case 3: | ||
635 | reg = reg_devconf1; | ||
636 | sel_bit = 2; | ||
637 | break; | ||
638 | case 4: | ||
639 | reg = reg_devconf1; | ||
640 | sel_bit = 4; | ||
641 | break; | ||
642 | default: | ||
643 | return -EINVAL; | ||
644 | } | ||
645 | |||
646 | if (clk_id == OMAP_MCBSP_SYSCLK_CLKS_FCLK) | ||
647 | omap_ctrl_writel(omap_ctrl_readl(reg) & ~(1 << sel_bit), reg); | ||
648 | else | ||
649 | omap_ctrl_writel(omap_ctrl_readl(reg) | (1 << sel_bit), reg); | ||
650 | |||
651 | return 0; | ||
652 | } | ||
653 | |||
654 | static int omap_mcbsp_dai_set_rcvr_src(struct omap_mcbsp_data *mcbsp_data, | ||
655 | int clk_id) | ||
656 | { | ||
657 | int sel_bit, set = 0; | ||
658 | u16 reg = OMAP2_CONTROL_DEVCONF0; | ||
659 | |||
660 | if (cpu_class_is_omap1()) | ||
661 | return -EINVAL; /* TODO: Can this be implemented for OMAP1? */ | ||
662 | if (mcbsp_data->bus_id != 0) | ||
663 | return -EINVAL; | ||
664 | |||
665 | switch (clk_id) { | ||
666 | case OMAP_MCBSP_CLKR_SRC_CLKX: | ||
667 | set = 1; | ||
668 | case OMAP_MCBSP_CLKR_SRC_CLKR: | ||
669 | sel_bit = 3; | ||
670 | break; | ||
671 | case OMAP_MCBSP_FSR_SRC_FSX: | ||
672 | set = 1; | ||
673 | case OMAP_MCBSP_FSR_SRC_FSR: | ||
674 | sel_bit = 4; | ||
675 | break; | ||
676 | default: | ||
677 | return -EINVAL; | ||
678 | } | ||
679 | |||
680 | if (set) | ||
681 | omap_ctrl_writel(omap_ctrl_readl(reg) | (1 << sel_bit), reg); | ||
682 | else | ||
683 | omap_ctrl_writel(omap_ctrl_readl(reg) & ~(1 << sel_bit), reg); | ||
684 | |||
685 | return 0; | ||
686 | } | ||
687 | |||
688 | static int omap_mcbsp_dai_set_dai_sysclk(struct snd_soc_dai *cpu_dai, | 600 | static int omap_mcbsp_dai_set_dai_sysclk(struct snd_soc_dai *cpu_dai, |
689 | int clk_id, unsigned int freq, | 601 | int clk_id, unsigned int freq, |
690 | int dir) | 602 | int dir) |
@@ -693,6 +605,14 @@ static int omap_mcbsp_dai_set_dai_sysclk(struct snd_soc_dai *cpu_dai, | |||
693 | struct omap_mcbsp_reg_cfg *regs = &mcbsp_data->regs; | 605 | struct omap_mcbsp_reg_cfg *regs = &mcbsp_data->regs; |
694 | int err = 0; | 606 | int err = 0; |
695 | 607 | ||
608 | /* The McBSP signal muxing functions are only available on McBSP1 */ | ||
609 | if (clk_id == OMAP_MCBSP_CLKR_SRC_CLKR || | ||
610 | clk_id == OMAP_MCBSP_CLKR_SRC_CLKX || | ||
611 | clk_id == OMAP_MCBSP_FSR_SRC_FSR || | ||
612 | clk_id == OMAP_MCBSP_FSR_SRC_FSX) | ||
613 | if (cpu_class_is_omap1() || mcbsp_data->bus_id != 0) | ||
614 | return -EINVAL; | ||
615 | |||
696 | mcbsp_data->in_freq = freq; | 616 | mcbsp_data->in_freq = freq; |
697 | 617 | ||
698 | switch (clk_id) { | 618 | switch (clk_id) { |
@@ -700,8 +620,20 @@ static int omap_mcbsp_dai_set_dai_sysclk(struct snd_soc_dai *cpu_dai, | |||
700 | regs->srgr2 |= CLKSM; | 620 | regs->srgr2 |= CLKSM; |
701 | break; | 621 | break; |
702 | case OMAP_MCBSP_SYSCLK_CLKS_FCLK: | 622 | case OMAP_MCBSP_SYSCLK_CLKS_FCLK: |
623 | if (cpu_class_is_omap1()) { | ||
624 | err = -EINVAL; | ||
625 | break; | ||
626 | } | ||
627 | err = omap2_mcbsp_set_clks_src(mcbsp_data->bus_id, | ||
628 | MCBSP_CLKS_PRCM_SRC); | ||
629 | break; | ||
703 | case OMAP_MCBSP_SYSCLK_CLKS_EXT: | 630 | case OMAP_MCBSP_SYSCLK_CLKS_EXT: |
704 | err = omap_mcbsp_dai_set_clks_src(mcbsp_data, clk_id); | 631 | if (cpu_class_is_omap1()) { |
632 | err = 0; | ||
633 | break; | ||
634 | } | ||
635 | err = omap2_mcbsp_set_clks_src(mcbsp_data->bus_id, | ||
636 | MCBSP_CLKS_PAD_SRC); | ||
705 | break; | 637 | break; |
706 | 638 | ||
707 | case OMAP_MCBSP_SYSCLK_CLKX_EXT: | 639 | case OMAP_MCBSP_SYSCLK_CLKX_EXT: |
@@ -710,11 +642,18 @@ static int omap_mcbsp_dai_set_dai_sysclk(struct snd_soc_dai *cpu_dai, | |||
710 | regs->pcr0 |= SCLKME; | 642 | regs->pcr0 |= SCLKME; |
711 | break; | 643 | break; |
712 | 644 | ||
645 | |||
713 | case OMAP_MCBSP_CLKR_SRC_CLKR: | 646 | case OMAP_MCBSP_CLKR_SRC_CLKR: |
647 | omap2_mcbsp1_mux_clkr_src(CLKR_SRC_CLKR); | ||
648 | break; | ||
714 | case OMAP_MCBSP_CLKR_SRC_CLKX: | 649 | case OMAP_MCBSP_CLKR_SRC_CLKX: |
650 | omap2_mcbsp1_mux_clkr_src(CLKR_SRC_CLKX); | ||
651 | break; | ||
715 | case OMAP_MCBSP_FSR_SRC_FSR: | 652 | case OMAP_MCBSP_FSR_SRC_FSR: |
653 | omap2_mcbsp1_mux_fsr_src(FSR_SRC_FSR); | ||
654 | break; | ||
716 | case OMAP_MCBSP_FSR_SRC_FSX: | 655 | case OMAP_MCBSP_FSR_SRC_FSX: |
717 | err = omap_mcbsp_dai_set_rcvr_src(mcbsp_data, clk_id); | 656 | omap2_mcbsp1_mux_fsr_src(FSR_SRC_FSX); |
718 | break; | 657 | break; |
719 | default: | 658 | default: |
720 | err = -ENODEV; | 659 | err = -ENODEV; |