diff options
| -rw-r--r-- | Documentation/devicetree/bindings/sound/omap-mcbsp.txt | 37 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/board-am3517evm.c | 13 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/mcbsp.c | 126 | ||||
| -rw-r--r-- | arch/arm/plat-omap/include/plat/mcbsp.h | 2 | ||||
| -rw-r--r-- | sound/soc/omap/am3517evm.c | 20 | ||||
| -rw-r--r-- | sound/soc/omap/mcbsp.c | 31 | ||||
| -rw-r--r-- | sound/soc/omap/mcbsp.h | 3 | ||||
| -rw-r--r-- | sound/soc/omap/omap-mcbsp.c | 106 | ||||
| -rw-r--r-- | sound/soc/omap/omap-mcbsp.h | 20 |
9 files changed, 158 insertions, 200 deletions
diff --git a/Documentation/devicetree/bindings/sound/omap-mcbsp.txt b/Documentation/devicetree/bindings/sound/omap-mcbsp.txt new file mode 100644 index 000000000000..17cce4490456 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/omap-mcbsp.txt @@ -0,0 +1,37 @@ +* Texas Instruments OMAP2+ McBSP module + +Required properties: +- compatible: "ti,omap2420-mcbsp" for McBSP on OMAP2420 + "ti,omap2430-mcbsp" for McBSP on OMAP2430 + "ti,omap3-mcbsp" for McBSP on OMAP3 + "ti,omap4-mcbsp" for McBSP on OMAP4 and newer SoC +- reg: Register location and size, for OMAP4+ as an array: + <MPU access base address, size>, + <L3 interconnect address, size>; +- reg-names: Array of strings associated with the address space +- interrupts: Interrupt numbers for the McBSP port, as an array in case the + McBSP IP have more interrupt lines: + <OCP compliant irq>, + <TX irq>, + <RX irq>; +- interrupt-names: Array of strings associated with the interrupt numbers +- interrupt-parent: The parent interrupt controller +- ti,buffer-size: Size of the FIFO on the port (OMAP2430 and newer SoC) +- ti,hwmods: Name of the hwmod associated to the McBSP port + +Example: + +mcbsp2: mcbsp@49022000 { + compatible = "ti,omap3-mcbsp"; + reg = <0x49022000 0xff>, + <0x49028000 0xff>; + reg-names = "mpu", "sidetone"; + interrupts = <0 17 0x4>, /* OCP compliant interrupt */ + <0 62 0x4>, /* TX interrupt */ + <0 63 0x4>, /* RX interrupt */ + <0 4 0x4>; /* Sidetone */ + interrupt-names = "common", "tx", "rx", "sidetone"; + interrupt-parent = <&intc>; + ti,buffer-size = <1280>; + ti,hwmods = "mcbsp2"; +}; diff --git a/arch/arm/mach-omap2/board-am3517evm.c b/arch/arm/mach-omap2/board-am3517evm.c index 18f601096ce1..592812af84da 100644 --- a/arch/arm/mach-omap2/board-am3517evm.c +++ b/arch/arm/mach-omap2/board-am3517evm.c @@ -264,6 +264,16 @@ static __init void am3517_evm_musb_init(void) usb_musb_init(&musb_board_data); } +static __init void am3517_evm_mcbsp1_init(void) +{ + 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); +} + static const struct usbhs_omap_board_data usbhs_bdata __initconst = { .port_mode[0] = OMAP_EHCI_PORT_MODE_PHY, #if defined(CONFIG_PANEL_SHARP_LQ043T1DG01) || \ @@ -373,6 +383,9 @@ static void __init am3517_evm_init(void) /* MUSB */ am3517_evm_musb_init(); + /* McBSP1 */ + am3517_evm_mcbsp1_init(); + /* MMC init function */ omap_hsmmc_init(mmc); } diff --git a/arch/arm/mach-omap2/mcbsp.c b/arch/arm/mach-omap2/mcbsp.c index 577cb77db26c..d57a3578bf03 100644 --- a/arch/arm/mach-omap2/mcbsp.c +++ b/arch/arm/mach-omap2/mcbsp.c @@ -15,6 +15,7 @@ #include <linux/clk.h> #include <linux/err.h> #include <linux/io.h> +#include <linux/of.h> #include <linux/platform_device.h> #include <linux/slab.h> @@ -25,8 +26,6 @@ #include <plat/omap_device.h> #include <linux/pm_runtime.h> -#include "control.h" - /* * FIXME: Find a mechanism to enable/disable runtime the McBSP ICLK autoidle. * Sidetone needs non-gated ICLK and sidetone autoidle is broken. @@ -34,112 +33,6 @@ #include "cm2xxx_3xxx.h" #include "cm-regbits-34xx.h" -/* McBSP1 internal signal muxing function for OMAP2/3 */ -static int omap2_mcbsp1_mux_rx_clk(struct device *dev, const char *signal, - const char *src) -{ - u32 v; - - v = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0); - - if (!strcmp(signal, "clkr")) { - if (!strcmp(src, "clkr")) - v &= ~OMAP2_MCBSP1_CLKR_MASK; - else if (!strcmp(src, "clkx")) - v |= OMAP2_MCBSP1_CLKR_MASK; - else - return -EINVAL; - } else if (!strcmp(signal, "fsr")) { - if (!strcmp(src, "fsr")) - v &= ~OMAP2_MCBSP1_FSR_MASK; - else if (!strcmp(src, "fsx")) - v |= OMAP2_MCBSP1_FSR_MASK; - else - return -EINVAL; - } else { - return -EINVAL; - } - - omap_ctrl_writel(v, OMAP2_CONTROL_DEVCONF0); - - return 0; -} - -/* McBSP4 internal signal muxing function for OMAP4 */ -#define OMAP4_CONTROL_MCBSPLP_ALBCTRLRX_FSX (1 << 31) -#define OMAP4_CONTROL_MCBSPLP_ALBCTRLRX_CLKX (1 << 30) -static int omap4_mcbsp4_mux_rx_clk(struct device *dev, const char *signal, - const char *src) -{ - u32 v; - - /* - * In CONTROL_MCBSPLP register only bit 30 (CLKR mux), and bit 31 (FSR - * mux) is used */ - v = omap4_ctrl_pad_readl(OMAP4_CTRL_MODULE_PAD_CORE_CONTROL_MCBSPLP); - - if (!strcmp(signal, "clkr")) { - if (!strcmp(src, "clkr")) - v &= ~OMAP4_CONTROL_MCBSPLP_ALBCTRLRX_CLKX; - else if (!strcmp(src, "clkx")) - v |= OMAP4_CONTROL_MCBSPLP_ALBCTRLRX_CLKX; - else - return -EINVAL; - } else if (!strcmp(signal, "fsr")) { - if (!strcmp(src, "fsr")) - v &= ~OMAP4_CONTROL_MCBSPLP_ALBCTRLRX_FSX; - else if (!strcmp(src, "fsx")) - v |= OMAP4_CONTROL_MCBSPLP_ALBCTRLRX_FSX; - else - return -EINVAL; - } else { - return -EINVAL; - } - - omap4_ctrl_pad_writel(v, OMAP4_CTRL_MODULE_PAD_CORE_CONTROL_MCBSPLP); - - return 0; -} - -/* McBSP CLKS source switching function */ -static int omap2_mcbsp_set_clk_src(struct device *dev, struct clk *clk, - const char *src) -{ - struct clk *fck_src; - char *fck_src_name; - int r; - - if (!strcmp(src, "clks_ext")) - fck_src_name = "pad_fck"; - else if (!strcmp(src, "clks_fclk")) - fck_src_name = "prcm_fck"; - else - return -EINVAL; - - fck_src = clk_get(dev, fck_src_name); - if (IS_ERR_OR_NULL(fck_src)) { - pr_err("omap-mcbsp: %s: could not clk_get() %s\n", "clks", - fck_src_name); - return -EINVAL; - } - - pm_runtime_put_sync(dev); - - r = clk_set_parent(clk, fck_src); - if (IS_ERR_VALUE(r)) { - pr_err("omap-mcbsp: %s: could not clk_set_parent() to %s\n", - "clks", fck_src_name); - clk_put(fck_src); - return -EINVAL; - } - - pm_runtime_get_sync(dev); - - clk_put(fck_src); - - return 0; -} - static int omap3_enable_st_clock(unsigned int id, bool enable) { unsigned int w; @@ -181,17 +74,11 @@ static int __init omap_init_mcbsp(struct omap_hwmod *oh, void *unused) pdata->reg_size = 4; pdata->has_ccr = true; } - pdata->set_clk_src = omap2_mcbsp_set_clk_src; - - /* On OMAP2/3 the McBSP1 port has 6 pin configuration */ - if (id == 1 && oh->class->rev < MCBSP_CONFIG_TYPE4) - pdata->mux_signal = omap2_mcbsp1_mux_rx_clk; - /* On OMAP4 the McBSP4 port has 6 pin configuration */ - if (id == 4 && oh->class->rev == MCBSP_CONFIG_TYPE4) - pdata->mux_signal = omap4_mcbsp4_mux_rx_clk; - - if (oh->class->rev == MCBSP_CONFIG_TYPE3) { + if (oh->class->rev == MCBSP_CONFIG_TYPE2) { + /* The FIFO has 128 locations */ + pdata->buffer_size = 0x80; + } else if (oh->class->rev == MCBSP_CONFIG_TYPE3) { if (id == 2) /* The FIFO has 1024 + 256 locations */ pdata->buffer_size = 0x500; @@ -227,7 +114,8 @@ static int __init omap_init_mcbsp(struct omap_hwmod *oh, void *unused) static int __init omap2_mcbsp_init(void) { - omap_hwmod_for_each_by_class("mcbsp", omap_init_mcbsp, NULL); + if (!of_have_populated_dt()) + omap_hwmod_for_each_by_class("mcbsp", omap_init_mcbsp, NULL); return 0; } diff --git a/arch/arm/plat-omap/include/plat/mcbsp.h b/arch/arm/plat-omap/include/plat/mcbsp.h index 18814127809a..c78d90b28b19 100644 --- a/arch/arm/plat-omap/include/plat/mcbsp.h +++ b/arch/arm/plat-omap/include/plat/mcbsp.h @@ -47,8 +47,6 @@ 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 (*set_clk_src)(struct device *dev, struct clk *clk, const char *src); - int (*mux_signal)(struct device *dev, const char *signal, const char *src); }; /** diff --git a/sound/soc/omap/am3517evm.c b/sound/soc/omap/am3517evm.c index 009533ab8d18..a997988af147 100644 --- a/sound/soc/omap/am3517evm.c +++ b/sound/soc/omap/am3517evm.c @@ -47,26 +47,10 @@ static int am3517evm_hw_params(struct snd_pcm_substream *substream, /* Set the codec system clock for DAC and ADC */ ret = snd_soc_dai_set_sysclk(codec_dai, 0, CODEC_CLOCK, SND_SOC_CLOCK_IN); - if (ret < 0) { + if (ret < 0) printk(KERN_ERR "can't set codec system clock\n"); - return ret; - } - - ret = snd_soc_dai_set_sysclk(cpu_dai, OMAP_MCBSP_CLKR_SRC_CLKX, 0, - SND_SOC_CLOCK_IN); - if (ret < 0) { - printk(KERN_ERR "can't set CPU system clock OMAP_MCBSP_CLKR_SRC_CLKX\n"); - return ret; - } - snd_soc_dai_set_sysclk(cpu_dai, OMAP_MCBSP_FSR_SRC_FSX, 0, - SND_SOC_CLOCK_IN); - if (ret < 0) { - printk(KERN_ERR "can't set CPU system clock OMAP_MCBSP_FSR_SRC_FSX\n"); - return ret; - } - - return 0; + return ret; } static struct snd_soc_ops am3517evm_ops = { diff --git a/sound/soc/omap/mcbsp.c b/sound/soc/omap/mcbsp.c index 34835e8a9160..6afbc26cef70 100644 --- a/sound/soc/omap/mcbsp.c +++ b/sound/soc/omap/mcbsp.c @@ -24,6 +24,7 @@ #include <linux/delay.h> #include <linux/io.h> #include <linux/slab.h> +#include <linux/pm_runtime.h> #include <plat/mcbsp.h> @@ -726,19 +727,39 @@ void omap_mcbsp_stop(struct omap_mcbsp *mcbsp, int tx, int rx) int omap2_mcbsp_set_clks_src(struct omap_mcbsp *mcbsp, u8 fck_src_id) { + struct clk *fck_src; const char *src; + int r; if (fck_src_id == MCBSP_CLKS_PAD_SRC) - src = "clks_ext"; + src = "pad_fck"; else if (fck_src_id == MCBSP_CLKS_PRCM_SRC) - src = "clks_fclk"; + src = "prcm_fck"; else return -EINVAL; - if (mcbsp->pdata->set_clk_src) - return mcbsp->pdata->set_clk_src(mcbsp->dev, mcbsp->fclk, src); - else + fck_src = clk_get(mcbsp->dev, src); + if (IS_ERR(fck_src)) { + dev_err(mcbsp->dev, "CLKS: could not clk_get() %s\n", src); return -EINVAL; + } + + pm_runtime_put_sync(mcbsp->dev); + + r = clk_set_parent(mcbsp->fclk, fck_src); + if (r) { + dev_err(mcbsp->dev, "CLKS: could not clk_set_parent() to %s\n", + src); + clk_put(fck_src); + return r; + } + + pm_runtime_get_sync(mcbsp->dev); + + clk_put(fck_src); + + return 0; + } int omap_mcbsp_6pin_src_mux(struct omap_mcbsp *mcbsp, u8 mux) diff --git a/sound/soc/omap/mcbsp.h b/sound/soc/omap/mcbsp.h index 262a6152111f..49a67259ce5a 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 acdd3ef14e08..d6de066ad7ea 100644 --- a/sound/soc/omap/omap-mcbsp.c +++ b/sound/soc/omap/omap-mcbsp.c @@ -26,6 +26,8 @@ #include <linux/module.h> #include <linux/device.h> #include <linux/pm_runtime.h> +#include <linux/of.h> +#include <linux/of_device.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/pcm_params.h> @@ -398,12 +400,14 @@ static int omap_mcbsp_dai_set_dai_fmt(struct snd_soc_dai *cpu_dai, /* Generic McBSP register settings */ regs->spcr2 |= XINTM(3) | FREE; regs->spcr1 |= RINTM(3); - /* RFIG and XFIG are not defined in 34xx */ - if (!cpu_is_omap34xx() && !cpu_is_omap44xx()) { + /* RFIG and XFIG are not defined in 2430 and on OMAP3+ */ + if (!mcbsp->pdata->has_ccr) { regs->rcr2 |= RFIG; regs->xcr2 |= XFIG; } - if (cpu_is_omap2430() || cpu_is_omap34xx() || cpu_is_omap44xx()) { + + /* Configure XCCR/RCCR only for revisions which have ccr registers */ + if (mcbsp->pdata->has_ccr) { regs->xccr = DXENDLY(1) | XDMAEN | XDISABLE; regs->rccr = RFULL_CYCLE | RDMAEN | RDISABLE; } @@ -516,21 +520,9 @@ 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 +550,6 @@ 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; } @@ -761,13 +739,74 @@ int omap_mcbsp_st_add_controls(struct snd_soc_pcm_runtime *rtd) } EXPORT_SYMBOL_GPL(omap_mcbsp_st_add_controls); +static struct omap_mcbsp_platform_data omap2420_pdata = { + .reg_step = 4, + .reg_size = 2, +}; + +static struct omap_mcbsp_platform_data omap2430_pdata = { + .reg_step = 4, + .reg_size = 4, + .has_ccr = true, +}; + +static struct omap_mcbsp_platform_data omap3_pdata = { + .reg_step = 4, + .reg_size = 4, + .has_ccr = true, + .has_wakeup = true, +}; + +static struct omap_mcbsp_platform_data omap4_pdata = { + .reg_step = 4, + .reg_size = 4, + .has_ccr = true, + .has_wakeup = true, +}; + +static const struct of_device_id omap_mcbsp_of_match[] = { + { + .compatible = "ti,omap2420-mcbsp", + .data = &omap2420_pdata, + }, + { + .compatible = "ti,omap2430-mcbsp", + .data = &omap2430_pdata, + }, + { + .compatible = "ti,omap3-mcbsp", + .data = &omap3_pdata, + }, + { + .compatible = "ti,omap4-mcbsp", + .data = &omap4_pdata, + }, + { }, +}; +MODULE_DEVICE_TABLE(of, omap_mcbsp_of_match); + static __devinit int asoc_mcbsp_probe(struct platform_device *pdev) { struct omap_mcbsp_platform_data *pdata = dev_get_platdata(&pdev->dev); struct omap_mcbsp *mcbsp; + const struct of_device_id *match; int ret; - if (!pdata) { + match = of_match_device(omap_mcbsp_of_match, &pdev->dev); + if (match) { + struct device_node *node = pdev->dev.of_node; + int buffer_size; + + pdata = devm_kzalloc(&pdev->dev, + sizeof(struct omap_mcbsp_platform_data), + GFP_KERNEL); + if (!pdata) + return -ENOMEM; + + memcpy(pdata, match->data, sizeof(*pdata)); + if (!of_property_read_u32(node, "ti,buffer-size", &buffer_size)) + pdata->buffer_size = buffer_size; + } else if (!pdata) { dev_err(&pdev->dev, "missing platform data.\n"); return -EINVAL; } @@ -809,6 +848,7 @@ static struct platform_driver asoc_mcbsp_driver = { .driver = { .name = "omap-mcbsp", .owner = THIS_MODULE, + .of_match_table = omap_mcbsp_of_match, }, .probe = asoc_mcbsp_probe, diff --git a/sound/soc/omap/omap-mcbsp.h b/sound/soc/omap/omap-mcbsp.h index f877b16f19c9..ba8386a0d8dc 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 */ @@ -43,22 +39,6 @@ enum omap_mcbsp_div { OMAP_MCBSP_CLKGDV, /* Sample rate generator divider */ }; -#if defined(CONFIG_SOC_OMAP2420) -#define NUM_LINKS 2 -#endif -#if defined(CONFIG_ARCH_OMAP15XX) || defined(CONFIG_ARCH_OMAP16XX) -#undef NUM_LINKS -#define NUM_LINKS 3 -#endif -#if defined(CONFIG_ARCH_OMAP4) -#undef NUM_LINKS -#define NUM_LINKS 4 -#endif -#if defined(CONFIG_ARCH_OMAP3) || defined(CONFIG_SOC_OMAP2430) -#undef NUM_LINKS -#define NUM_LINKS 5 -#endif - int omap_mcbsp_st_add_controls(struct snd_soc_pcm_runtime *rtd); #endif |
