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 <jarkko.nikula@bitmer.com> Acked-by: Peter Ujfalusi <peter.ujfalusi@ti.com> Tested-by: Janusz Krzysztofik <jkrzyszt@tis.icnet.pl> Signed-off-by: Tony Lindgren <tony@atomide.com>
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@ -353,9 +353,7 @@ struct omap_mcbsp {
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spinlock_t lock;
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struct omap_mcbsp_platform_data *pdata;
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struct clk *fclk;
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#ifdef CONFIG_ARCH_OMAP3
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struct omap_mcbsp_st_data *st_data;
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#endif
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int dma_op_mode;
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u16 max_tx_thres;
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u16 max_rx_thres;
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@ -402,21 +400,11 @@ void omap2_mcbsp1_mux_fsr_src(u8 mux);
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int omap_mcbsp_dma_ch_params(unsigned int id, unsigned int stream);
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int omap_mcbsp_dma_reg_params(unsigned int id, unsigned int stream);
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#ifdef CONFIG_ARCH_OMAP3
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/* Sidetone specific API */
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int omap_st_set_chgain(unsigned int id, int channel, s16 chgain);
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int omap_st_get_chgain(unsigned int id, int channel, s16 *chgain);
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int omap_st_enable(unsigned int id);
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int omap_st_disable(unsigned int id);
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int omap_st_is_enabled(unsigned int id);
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#else
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static inline int omap_st_set_chgain(unsigned int id, int channel,
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s16 chgain) { return 0; }
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static inline int omap_st_get_chgain(unsigned int id, int channel,
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s16 *chgain) { return 0; }
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static inline int omap_st_enable(unsigned int id) { return 0; }
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static inline int omap_st_disable(unsigned int id) { return 0; }
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static inline int omap_st_is_enabled(unsigned int id) { return 0; }
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#endif
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#endif
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@ -55,7 +55,6 @@ static int omap_mcbsp_read(struct omap_mcbsp *mcbsp, u16 reg, bool from_cache)
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}
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}
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#ifdef CONFIG_ARCH_OMAP3
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static void omap_mcbsp_st_write(struct omap_mcbsp *mcbsp, u16 reg, u32 val)
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{
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__raw_writel(val, mcbsp->st_data->io_base_st + reg);
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@ -65,7 +64,6 @@ static int omap_mcbsp_st_read(struct omap_mcbsp *mcbsp, u16 reg)
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{
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return __raw_readl(mcbsp->st_data->io_base_st + reg);
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}
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#endif
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#define MCBSP_READ(mcbsp, reg) \
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omap_mcbsp_read(mcbsp, OMAP_MCBSP_REG_##reg, 0)
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@ -248,7 +246,6 @@ int omap_mcbsp_dma_reg_params(unsigned int id, unsigned int stream)
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}
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EXPORT_SYMBOL(omap_mcbsp_dma_reg_params);
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#ifdef CONFIG_ARCH_OMAP3
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static void omap_st_on(struct omap_mcbsp *mcbsp)
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{
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unsigned int w;
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@ -482,11 +479,6 @@ int omap_st_is_enabled(unsigned int id)
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}
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EXPORT_SYMBOL(omap_st_is_enabled);
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#else
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static inline void omap_st_start(struct omap_mcbsp *mcbsp) {}
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static inline void omap_st_stop(struct omap_mcbsp *mcbsp) {}
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#endif
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/*
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* omap_mcbsp_set_rx_threshold configures the transmit threshold in words.
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* The threshold parameter is 1 based, and it is converted (threshold - 1)
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@ -802,7 +794,7 @@ void omap_mcbsp_start(unsigned int id, int tx, int rx)
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}
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mcbsp = id_to_mcbsp_ptr(id);
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if (cpu_is_omap34xx())
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if (mcbsp->st_data)
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omap_st_start(mcbsp);
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/* Only enable SRG, if McBSP is master */
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@ -897,7 +889,7 @@ void omap_mcbsp_stop(unsigned int id, int tx, int rx)
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MCBSP_WRITE(mcbsp, SPCR2, w & ~(1 << 6));
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}
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if (cpu_is_omap34xx())
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if (mcbsp->st_data)
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omap_st_stop(mcbsp);
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}
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EXPORT_SYMBOL(omap_mcbsp_stop);
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@ -1030,7 +1022,6 @@ static const struct attribute_group additional_attr_group = {
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.attrs = (struct attribute **)additional_attrs,
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};
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#ifdef CONFIG_ARCH_OMAP3
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static ssize_t st_taps_show(struct device *dev,
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struct device_attribute *attr, char *buf)
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{
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@ -1098,10 +1089,9 @@ static const struct attribute_group sidetone_attr_group = {
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.attrs = (struct attribute **)sidetone_attrs,
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};
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static int __devinit omap_st_add(struct omap_mcbsp *mcbsp)
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static int __devinit omap_st_add(struct omap_mcbsp *mcbsp,
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struct resource *res)
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{
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struct platform_device *pdev;
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struct resource *res;
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struct omap_mcbsp_st_data *st_data;
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int err;
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@ -1111,9 +1101,6 @@ static int __devinit omap_st_add(struct omap_mcbsp *mcbsp)
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goto err1;
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}
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pdev = container_of(mcbsp->dev, struct platform_device, dev);
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res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "sidetone");
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st_data->io_base_st = ioremap(res->start, resource_size(res));
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if (!st_data->io_base_st) {
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err = -ENOMEM;
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@ -1140,32 +1127,10 @@ static void __devexit omap_st_remove(struct omap_mcbsp *mcbsp)
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{
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struct omap_mcbsp_st_data *st_data = mcbsp->st_data;
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if (st_data) {
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sysfs_remove_group(&mcbsp->dev->kobj, &sidetone_attr_group);
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iounmap(st_data->io_base_st);
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kfree(st_data);
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}
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}
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static inline void __devinit omap34xx_device_init(struct omap_mcbsp *mcbsp)
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{
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if (cpu_is_omap34xx())
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if (mcbsp->id == 2 || mcbsp->id == 3)
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if (omap_st_add(mcbsp))
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dev_warn(mcbsp->dev,
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"Unable to create sidetone controls\n");
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}
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static inline void __devexit omap34xx_device_exit(struct omap_mcbsp *mcbsp)
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{
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if (cpu_is_omap34xx())
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if (mcbsp->id == 2 || mcbsp->id == 3)
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omap_st_remove(mcbsp);
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}
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#else
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static inline void __devinit omap34xx_device_init(struct omap_mcbsp *mcbsp) {}
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static inline void __devexit omap34xx_device_exit(struct omap_mcbsp *mcbsp) {}
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#endif /* CONFIG_ARCH_OMAP3 */
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/*
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* McBSP1 and McBSP3 are directly mapped on 1610 and 1510.
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@ -1291,11 +1256,22 @@ static int __devinit omap_mcbsp_probe(struct platform_device *pdev)
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mcbsp->max_rx_thres = -EINVAL;
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}
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/* Initialize mcbsp properties for OMAP34XX if needed / applicable */
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omap34xx_device_init(mcbsp);
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res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "sidetone");
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if (res) {
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ret = omap_st_add(mcbsp, res);
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if (ret) {
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dev_err(mcbsp->dev,
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"Unable to create sidetone controls\n");
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goto err_st;
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}
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}
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return 0;
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err_st:
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if (mcbsp->pdata->buffer_size)
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sysfs_remove_group(&mcbsp->dev->kobj,
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&additional_attr_group);
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err_thres:
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clk_put(mcbsp->fclk);
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err_res:
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@ -1321,7 +1297,8 @@ static int __devexit omap_mcbsp_remove(struct platform_device *pdev)
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sysfs_remove_group(&mcbsp->dev->kobj,
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&additional_attr_group);
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omap34xx_device_exit(mcbsp);
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if (mcbsp->st_data)
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omap_st_remove(mcbsp);
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clk_put(mcbsp->fclk);
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