From: Jarkko Nikula Date: Mon, 26 Sep 2011 07:45:45 +0000 (+0300) Subject: ARM: OMAP: mcbsp: Cleanup sidetone control initialization and make it generic X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=f821eece8b1bb10ad2d76c026e02257ce5c3c439;p=linux-beck.git ARM: OMAP: mcbsp: Cleanup sidetone control initialization and make it generic Sidetone resource is already registered for a device so there is no need for cpu_is_omap34xx() and McBSP port number tests in the driver. We can cleanup and make the code generic by dropping remaining CONFIG_ARCH_OMAP3 conditional compilations and then using sidetone resource and st_data variable for runtime tests. Signed-off-by: Jarkko Nikula Acked-by: Peter Ujfalusi Tested-by: Janusz Krzysztofik Signed-off-by: Tony Lindgren --- diff --git a/arch/arm/plat-omap/include/plat/mcbsp.h b/arch/arm/plat-omap/include/plat/mcbsp.h index e451a6e8b065..9802055b0a80 100644 --- a/arch/arm/plat-omap/include/plat/mcbsp.h +++ b/arch/arm/plat-omap/include/plat/mcbsp.h @@ -353,9 +353,7 @@ struct omap_mcbsp { spinlock_t lock; struct omap_mcbsp_platform_data *pdata; struct clk *fclk; -#ifdef CONFIG_ARCH_OMAP3 struct omap_mcbsp_st_data *st_data; -#endif int dma_op_mode; u16 max_tx_thres; u16 max_rx_thres; @@ -402,21 +400,11 @@ void omap2_mcbsp1_mux_fsr_src(u8 mux); int omap_mcbsp_dma_ch_params(unsigned int id, unsigned int stream); int omap_mcbsp_dma_reg_params(unsigned int id, unsigned int stream); -#ifdef CONFIG_ARCH_OMAP3 /* Sidetone specific API */ int omap_st_set_chgain(unsigned int id, int channel, s16 chgain); int omap_st_get_chgain(unsigned int id, int channel, s16 *chgain); int omap_st_enable(unsigned int id); int omap_st_disable(unsigned int id); int omap_st_is_enabled(unsigned int id); -#else -static inline int omap_st_set_chgain(unsigned int id, int channel, - s16 chgain) { return 0; } -static inline int omap_st_get_chgain(unsigned int id, int channel, - s16 *chgain) { return 0; } -static inline int omap_st_enable(unsigned int id) { return 0; } -static inline int omap_st_disable(unsigned int id) { return 0; } -static inline int omap_st_is_enabled(unsigned int id) { return 0; } -#endif #endif diff --git a/arch/arm/plat-omap/mcbsp.c b/arch/arm/plat-omap/mcbsp.c index e96d747fbd80..f92227f99f86 100644 --- a/arch/arm/plat-omap/mcbsp.c +++ b/arch/arm/plat-omap/mcbsp.c @@ -55,7 +55,6 @@ static int omap_mcbsp_read(struct omap_mcbsp *mcbsp, u16 reg, bool from_cache) } } -#ifdef CONFIG_ARCH_OMAP3 static void omap_mcbsp_st_write(struct omap_mcbsp *mcbsp, u16 reg, u32 val) { __raw_writel(val, mcbsp->st_data->io_base_st + reg); @@ -65,7 +64,6 @@ static int omap_mcbsp_st_read(struct omap_mcbsp *mcbsp, u16 reg) { return __raw_readl(mcbsp->st_data->io_base_st + reg); } -#endif #define MCBSP_READ(mcbsp, reg) \ omap_mcbsp_read(mcbsp, OMAP_MCBSP_REG_##reg, 0) @@ -248,7 +246,6 @@ int omap_mcbsp_dma_reg_params(unsigned int id, unsigned int stream) } EXPORT_SYMBOL(omap_mcbsp_dma_reg_params); -#ifdef CONFIG_ARCH_OMAP3 static void omap_st_on(struct omap_mcbsp *mcbsp) { unsigned int w; @@ -482,11 +479,6 @@ int omap_st_is_enabled(unsigned int id) } EXPORT_SYMBOL(omap_st_is_enabled); -#else -static inline void omap_st_start(struct omap_mcbsp *mcbsp) {} -static inline void omap_st_stop(struct omap_mcbsp *mcbsp) {} -#endif - /* * omap_mcbsp_set_rx_threshold configures the transmit threshold in words. * The threshold parameter is 1 based, and it is converted (threshold - 1) @@ -802,7 +794,7 @@ void omap_mcbsp_start(unsigned int id, int tx, int rx) } mcbsp = id_to_mcbsp_ptr(id); - if (cpu_is_omap34xx()) + if (mcbsp->st_data) omap_st_start(mcbsp); /* Only enable SRG, if McBSP is master */ @@ -897,7 +889,7 @@ void omap_mcbsp_stop(unsigned int id, int tx, int rx) MCBSP_WRITE(mcbsp, SPCR2, w & ~(1 << 6)); } - if (cpu_is_omap34xx()) + if (mcbsp->st_data) omap_st_stop(mcbsp); } EXPORT_SYMBOL(omap_mcbsp_stop); @@ -1030,7 +1022,6 @@ static const struct attribute_group additional_attr_group = { .attrs = (struct attribute **)additional_attrs, }; -#ifdef CONFIG_ARCH_OMAP3 static ssize_t st_taps_show(struct device *dev, struct device_attribute *attr, char *buf) { @@ -1098,10 +1089,9 @@ static const struct attribute_group sidetone_attr_group = { .attrs = (struct attribute **)sidetone_attrs, }; -static int __devinit omap_st_add(struct omap_mcbsp *mcbsp) +static int __devinit omap_st_add(struct omap_mcbsp *mcbsp, + struct resource *res) { - struct platform_device *pdev; - struct resource *res; struct omap_mcbsp_st_data *st_data; int err; @@ -1111,9 +1101,6 @@ static int __devinit omap_st_add(struct omap_mcbsp *mcbsp) goto err1; } - pdev = container_of(mcbsp->dev, struct platform_device, dev); - - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "sidetone"); st_data->io_base_st = ioremap(res->start, resource_size(res)); if (!st_data->io_base_st) { err = -ENOMEM; @@ -1140,32 +1127,10 @@ static void __devexit omap_st_remove(struct omap_mcbsp *mcbsp) { struct omap_mcbsp_st_data *st_data = mcbsp->st_data; - if (st_data) { - sysfs_remove_group(&mcbsp->dev->kobj, &sidetone_attr_group); - iounmap(st_data->io_base_st); - kfree(st_data); - } -} - -static inline void __devinit omap34xx_device_init(struct omap_mcbsp *mcbsp) -{ - if (cpu_is_omap34xx()) - if (mcbsp->id == 2 || mcbsp->id == 3) - if (omap_st_add(mcbsp)) - dev_warn(mcbsp->dev, - "Unable to create sidetone controls\n"); -} - -static inline void __devexit omap34xx_device_exit(struct omap_mcbsp *mcbsp) -{ - if (cpu_is_omap34xx()) - if (mcbsp->id == 2 || mcbsp->id == 3) - omap_st_remove(mcbsp); + sysfs_remove_group(&mcbsp->dev->kobj, &sidetone_attr_group); + iounmap(st_data->io_base_st); + kfree(st_data); } -#else -static inline void __devinit omap34xx_device_init(struct omap_mcbsp *mcbsp) {} -static inline void __devexit omap34xx_device_exit(struct omap_mcbsp *mcbsp) {} -#endif /* CONFIG_ARCH_OMAP3 */ /* * McBSP1 and McBSP3 are directly mapped on 1610 and 1510. @@ -1291,11 +1256,22 @@ static int __devinit omap_mcbsp_probe(struct platform_device *pdev) mcbsp->max_rx_thres = -EINVAL; } - /* Initialize mcbsp properties for OMAP34XX if needed / applicable */ - omap34xx_device_init(mcbsp); + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "sidetone"); + if (res) { + ret = omap_st_add(mcbsp, res); + if (ret) { + dev_err(mcbsp->dev, + "Unable to create sidetone controls\n"); + goto err_st; + } + } return 0; +err_st: + if (mcbsp->pdata->buffer_size) + sysfs_remove_group(&mcbsp->dev->kobj, + &additional_attr_group); err_thres: clk_put(mcbsp->fclk); err_res: @@ -1321,7 +1297,8 @@ static int __devexit omap_mcbsp_remove(struct platform_device *pdev) sysfs_remove_group(&mcbsp->dev->kobj, &additional_attr_group); - omap34xx_device_exit(mcbsp); + if (mcbsp->st_data) + omap_st_remove(mcbsp); clk_put(mcbsp->fclk);