From 0cd070c9f5ba87a0e4fc89b950209e89dfd3e85a Mon Sep 17 00:00:00 2001 From: Russell King Date: Tue, 6 Sep 2016 19:09:49 +0100 Subject: ARM: sa1111: remove legacy shutdown method Since the only user of the SA1111 device driver shutdown method has now gone, we can kill the bus level support code and the entry in the sa1111 device driver structure. Signed-off-by: Russell King --- arch/arm/common/sa1111.c | 9 --------- 1 file changed, 9 deletions(-) (limited to 'arch/arm/common') diff --git a/arch/arm/common/sa1111.c b/arch/arm/common/sa1111.c index 4ecd5120fce7..1fcf06d1cda8 100644 --- a/arch/arm/common/sa1111.c +++ b/arch/arm/common/sa1111.c @@ -1401,14 +1401,6 @@ static int sa1111_bus_resume(struct device *dev) return ret; } -static void sa1111_bus_shutdown(struct device *dev) -{ - struct sa1111_driver *drv = SA1111_DRV(dev->driver); - - if (drv && drv->shutdown) - drv->shutdown(to_sa1111_device(dev)); -} - static int sa1111_bus_probe(struct device *dev) { struct sa1111_dev *sadev = to_sa1111_device(dev); @@ -1438,7 +1430,6 @@ struct bus_type sa1111_bus_type = { .remove = sa1111_bus_remove, .suspend = sa1111_bus_suspend, .resume = sa1111_bus_resume, - .shutdown = sa1111_bus_shutdown, }; EXPORT_SYMBOL(sa1111_bus_type); -- cgit v1.2.3 From 50419497b5e123340f76068d08d3eb65947a1dd9 Mon Sep 17 00:00:00 2001 From: Russell King Date: Tue, 6 Sep 2016 14:14:06 +0100 Subject: ARM: sa1111: remove legacy suspend/resume methods The legacy device-driver suspend/resume methods are not used by any of our drivers, so let's remove this redundant code. Acked-by: Rafael J. Wysocki Signed-off-by: Russell King --- arch/arm/common/sa1111.c | 24 ------------------------ 1 file changed, 24 deletions(-) (limited to 'arch/arm/common') diff --git a/arch/arm/common/sa1111.c b/arch/arm/common/sa1111.c index 1fcf06d1cda8..c5f5341c05b7 100644 --- a/arch/arm/common/sa1111.c +++ b/arch/arm/common/sa1111.c @@ -1379,28 +1379,6 @@ static int sa1111_match(struct device *_dev, struct device_driver *_drv) return !!(dev->devid & drv->devid); } -static int sa1111_bus_suspend(struct device *dev, pm_message_t state) -{ - struct sa1111_dev *sadev = to_sa1111_device(dev); - struct sa1111_driver *drv = SA1111_DRV(dev->driver); - int ret = 0; - - if (drv && drv->suspend) - ret = drv->suspend(sadev, state); - return ret; -} - -static int sa1111_bus_resume(struct device *dev) -{ - struct sa1111_dev *sadev = to_sa1111_device(dev); - struct sa1111_driver *drv = SA1111_DRV(dev->driver); - int ret = 0; - - if (drv && drv->resume) - ret = drv->resume(sadev); - return ret; -} - static int sa1111_bus_probe(struct device *dev) { struct sa1111_dev *sadev = to_sa1111_device(dev); @@ -1428,8 +1406,6 @@ struct bus_type sa1111_bus_type = { .match = sa1111_match, .probe = sa1111_bus_probe, .remove = sa1111_bus_remove, - .suspend = sa1111_bus_suspend, - .resume = sa1111_bus_resume, }; EXPORT_SYMBOL(sa1111_bus_type); -- cgit v1.2.3 From a5b549eda2f1f207a6da44b6e83069d1bbfda0b9 Mon Sep 17 00:00:00 2001 From: Russell King Date: Wed, 7 Sep 2016 15:11:14 +0100 Subject: ARM: sa1111: remove special sa1111 mmio accessors Remove the special sa1111 mmio accessors from core sa1111 code, and their definition in sa1111.h now that all users are gone. Signed-off-by: Russell King --- arch/arm/common/sa1111.c | 180 +++++++++++++++++++++++------------------------ 1 file changed, 89 insertions(+), 91 deletions(-) (limited to 'arch/arm/common') diff --git a/arch/arm/common/sa1111.c b/arch/arm/common/sa1111.c index c5f5341c05b7..36c2162c95af 100644 --- a/arch/arm/common/sa1111.c +++ b/arch/arm/common/sa1111.c @@ -204,14 +204,14 @@ static void sa1111_irq_handler(struct irq_desc *desc) struct sa1111 *sachip = irq_desc_get_handler_data(desc); void __iomem *mapbase = sachip->base + SA1111_INTC; - stat0 = sa1111_readl(mapbase + SA1111_INTSTATCLR0); - stat1 = sa1111_readl(mapbase + SA1111_INTSTATCLR1); + stat0 = readl_relaxed(mapbase + SA1111_INTSTATCLR0); + stat1 = readl_relaxed(mapbase + SA1111_INTSTATCLR1); - sa1111_writel(stat0, mapbase + SA1111_INTSTATCLR0); + writel_relaxed(stat0, mapbase + SA1111_INTSTATCLR0); desc->irq_data.chip->irq_ack(&desc->irq_data); - sa1111_writel(stat1, mapbase + SA1111_INTSTATCLR1); + writel_relaxed(stat1, mapbase + SA1111_INTSTATCLR1); if (stat0 == 0 && stat1 == 0) { do_bad_IRQ(desc); @@ -257,9 +257,9 @@ static void sa1111_mask_irq(struct irq_data *d) void __iomem *mapbase = sachip->base + SA1111_INTC + sa1111_irqbank(d); u32 ie; - ie = sa1111_readl(mapbase + SA1111_INTEN0); + ie = readl_relaxed(mapbase + SA1111_INTEN0); ie &= ~sa1111_irqmask(d); - sa1111_writel(ie, mapbase + SA1111_INTEN0); + writel(ie, mapbase + SA1111_INTEN0); } static void sa1111_unmask_irq(struct irq_data *d) @@ -268,9 +268,9 @@ static void sa1111_unmask_irq(struct irq_data *d) void __iomem *mapbase = sachip->base + SA1111_INTC + sa1111_irqbank(d); u32 ie; - ie = sa1111_readl(mapbase + SA1111_INTEN0); + ie = readl_relaxed(mapbase + SA1111_INTEN0); ie |= sa1111_irqmask(d); - sa1111_writel(ie, mapbase + SA1111_INTEN0); + writel_relaxed(ie, mapbase + SA1111_INTEN0); } /* @@ -287,11 +287,11 @@ static int sa1111_retrigger_irq(struct irq_data *d) u32 ip, mask = sa1111_irqmask(d); int i; - ip = sa1111_readl(mapbase + SA1111_INTPOL0); + ip = readl_relaxed(mapbase + SA1111_INTPOL0); for (i = 0; i < 8; i++) { - sa1111_writel(ip ^ mask, mapbase + SA1111_INTPOL0); - sa1111_writel(ip, mapbase + SA1111_INTPOL0); - if (sa1111_readl(mapbase + SA1111_INTSTATCLR0) & mask) + writel_relaxed(ip ^ mask, mapbase + SA1111_INTPOL0); + writel_relaxed(ip, mapbase + SA1111_INTPOL0); + if (readl_relaxed(mapbase + SA1111_INTSTATCLR0) & mask) break; } @@ -313,13 +313,13 @@ static int sa1111_type_irq(struct irq_data *d, unsigned int flags) if ((!(flags & IRQ_TYPE_EDGE_RISING) ^ !(flags & IRQ_TYPE_EDGE_FALLING)) == 0) return -EINVAL; - ip = sa1111_readl(mapbase + SA1111_INTPOL0); + ip = readl_relaxed(mapbase + SA1111_INTPOL0); if (flags & IRQ_TYPE_EDGE_RISING) ip &= ~mask; else ip |= mask; - sa1111_writel(ip, mapbase + SA1111_INTPOL0); - sa1111_writel(ip, mapbase + SA1111_WAKEPOL0); + writel_relaxed(ip, mapbase + SA1111_INTPOL0); + writel_relaxed(ip, mapbase + SA1111_WAKEPOL0); return 0; } @@ -330,12 +330,12 @@ static int sa1111_wake_irq(struct irq_data *d, unsigned int on) void __iomem *mapbase = sachip->base + SA1111_INTC + sa1111_irqbank(d); u32 we, mask = sa1111_irqmask(d); - we = sa1111_readl(mapbase + SA1111_WAKEEN0); + we = readl_relaxed(mapbase + SA1111_WAKEEN0); if (on) we |= mask; else we &= ~mask; - sa1111_writel(we, mapbase + SA1111_WAKEEN0); + writel_relaxed(we, mapbase + SA1111_WAKEEN0); return 0; } @@ -373,23 +373,23 @@ static int sa1111_setup_irq(struct sa1111 *sachip, unsigned irq_base) sachip->irq_base = ret; /* disable all IRQs */ - sa1111_writel(0, irqbase + SA1111_INTEN0); - sa1111_writel(0, irqbase + SA1111_INTEN1); - sa1111_writel(0, irqbase + SA1111_WAKEEN0); - sa1111_writel(0, irqbase + SA1111_WAKEEN1); + writel_relaxed(0, irqbase + SA1111_INTEN0); + writel_relaxed(0, irqbase + SA1111_INTEN1); + writel_relaxed(0, irqbase + SA1111_WAKEEN0); + writel_relaxed(0, irqbase + SA1111_WAKEEN1); /* * detect on rising edge. Note: Feb 2001 Errata for SA1111 * specifies that S0ReadyInt and S1ReadyInt should be '1'. */ - sa1111_writel(0, irqbase + SA1111_INTPOL0); - sa1111_writel(BIT(IRQ_S0_READY_NINT & 31) | - BIT(IRQ_S1_READY_NINT & 31), - irqbase + SA1111_INTPOL1); + writel_relaxed(0, irqbase + SA1111_INTPOL0); + writel_relaxed(BIT(IRQ_S0_READY_NINT & 31) | + BIT(IRQ_S1_READY_NINT & 31), + irqbase + SA1111_INTPOL1); /* clear all IRQs */ - sa1111_writel(~0, irqbase + SA1111_INTSTATCLR0); - sa1111_writel(~0, irqbase + SA1111_INTSTATCLR1); + writel_relaxed(~0, irqbase + SA1111_INTSTATCLR0); + writel_relaxed(~0, irqbase + SA1111_INTSTATCLR1); for (i = IRQ_GPAIN0; i <= SSPROR; i++) { irq = sachip->irq_base + i; @@ -423,10 +423,10 @@ static void sa1111_remove_irq(struct sa1111 *sachip) void __iomem *irqbase = sachip->base + SA1111_INTC; /* disable all IRQs */ - sa1111_writel(0, irqbase + SA1111_INTEN0); - sa1111_writel(0, irqbase + SA1111_INTEN1); - sa1111_writel(0, irqbase + SA1111_WAKEEN0); - sa1111_writel(0, irqbase + SA1111_WAKEEN1); + writel_relaxed(0, irqbase + SA1111_INTEN0); + writel_relaxed(0, irqbase + SA1111_INTEN1); + writel_relaxed(0, irqbase + SA1111_WAKEEN0); + writel_relaxed(0, irqbase + SA1111_WAKEEN1); if (sachip->irq != NO_IRQ) { irq_set_chained_handler_and_data(sachip->irq, NULL, NULL); @@ -618,11 +618,11 @@ static void sa1111_wake(struct sa1111 *sachip) /* * Turn VCO on, and disable PLL Bypass. */ - r = sa1111_readl(sachip->base + SA1111_SKCR); + r = readl_relaxed(sachip->base + SA1111_SKCR); r &= ~SKCR_VCO_OFF; - sa1111_writel(r, sachip->base + SA1111_SKCR); + writel_relaxed(r, sachip->base + SA1111_SKCR); r |= SKCR_PLL_BYPASS | SKCR_OE_EN; - sa1111_writel(r, sachip->base + SA1111_SKCR); + writel_relaxed(r, sachip->base + SA1111_SKCR); /* * Wait lock time. SA1111 manual _doesn't_ @@ -634,7 +634,7 @@ static void sa1111_wake(struct sa1111 *sachip) * Enable RCLK. We also ensure that RDYEN is set. */ r |= SKCR_RCLKEN | SKCR_RDYEN; - sa1111_writel(r, sachip->base + SA1111_SKCR); + writel_relaxed(r, sachip->base + SA1111_SKCR); /* * Wait 14 RCLK cycles for the chip to finish coming out @@ -645,7 +645,7 @@ static void sa1111_wake(struct sa1111 *sachip) /* * Ensure all clocks are initially off. */ - sa1111_writel(0, sachip->base + SA1111_SKPCR); + writel_relaxed(0, sachip->base + SA1111_SKPCR); spin_unlock_irqrestore(&sachip->lock, flags); } @@ -675,7 +675,7 @@ sa1111_configure_smc(struct sa1111 *sachip, int sdram, unsigned int drac, if (cas_latency == 3) smcr |= SMCR_CLAT; - sa1111_writel(smcr, sachip->base + SA1111_SMCR); + writel_relaxed(smcr, sachip->base + SA1111_SMCR); /* * Now clear the bits in the DMA mask to work around the SA1111 @@ -814,7 +814,7 @@ static int __sa1111_probe(struct device *me, struct resource *mem, int irq) /* * Probe for the chip. Only touch the SBI registers. */ - id = sa1111_readl(sachip->base + SA1111_SKID); + id = readl_relaxed(sachip->base + SA1111_SKID); if ((id & SKID_ID_MASK) != SKID_SA1111_ID) { printk(KERN_DEBUG "SA1111 not detected: ID = %08lx\n", id); ret = -ENODEV; @@ -833,11 +833,9 @@ static int __sa1111_probe(struct device *me, struct resource *mem, int irq) * The interrupt controller must be initialised before any * other device to ensure that the interrupts are available. */ - if (sachip->irq != NO_IRQ) { - ret = sa1111_setup_irq(sachip, pd->irq_base); - if (ret) - goto err_clk; - } + ret = sa1111_setup_irq(sachip, pd->irq_base); + if (ret) + goto err_clk; /* Setup the GPIOs - should really be done after the IRQ setup */ ret = sa1111_setup_gpios(sachip); @@ -864,8 +862,8 @@ static int __sa1111_probe(struct device *me, struct resource *mem, int irq) * DMA. It can otherwise be held firmly in the off position. * (currently, we always enable it.) */ - val = sa1111_readl(sachip->base + SA1111_SKPCR); - sa1111_writel(val | SKPCR_DCLKEN, sachip->base + SA1111_SKPCR); + val = readl_relaxed(sachip->base + SA1111_SKPCR); + writel_relaxed(val | SKPCR_DCLKEN, sachip->base + SA1111_SKPCR); /* * Enable the SA1110 memory bus request and grant signals. @@ -962,31 +960,31 @@ static int sa1111_suspend_noirq(struct device *dev) * Save state. */ base = sachip->base; - save->skcr = sa1111_readl(base + SA1111_SKCR); - save->skpcr = sa1111_readl(base + SA1111_SKPCR); - save->skcdr = sa1111_readl(base + SA1111_SKCDR); - save->skaud = sa1111_readl(base + SA1111_SKAUD); - save->skpwm0 = sa1111_readl(base + SA1111_SKPWM0); - save->skpwm1 = sa1111_readl(base + SA1111_SKPWM1); + save->skcr = readl_relaxed(base + SA1111_SKCR); + save->skpcr = readl_relaxed(base + SA1111_SKPCR); + save->skcdr = readl_relaxed(base + SA1111_SKCDR); + save->skaud = readl_relaxed(base + SA1111_SKAUD); + save->skpwm0 = readl_relaxed(base + SA1111_SKPWM0); + save->skpwm1 = readl_relaxed(base + SA1111_SKPWM1); - sa1111_writel(0, sachip->base + SA1111_SKPWM0); - sa1111_writel(0, sachip->base + SA1111_SKPWM1); + writel_relaxed(0, sachip->base + SA1111_SKPWM0); + writel_relaxed(0, sachip->base + SA1111_SKPWM1); base = sachip->base + SA1111_INTC; - save->intpol0 = sa1111_readl(base + SA1111_INTPOL0); - save->intpol1 = sa1111_readl(base + SA1111_INTPOL1); - save->inten0 = sa1111_readl(base + SA1111_INTEN0); - save->inten1 = sa1111_readl(base + SA1111_INTEN1); - save->wakepol0 = sa1111_readl(base + SA1111_WAKEPOL0); - save->wakepol1 = sa1111_readl(base + SA1111_WAKEPOL1); - save->wakeen0 = sa1111_readl(base + SA1111_WAKEEN0); - save->wakeen1 = sa1111_readl(base + SA1111_WAKEEN1); + save->intpol0 = readl_relaxed(base + SA1111_INTPOL0); + save->intpol1 = readl_relaxed(base + SA1111_INTPOL1); + save->inten0 = readl_relaxed(base + SA1111_INTEN0); + save->inten1 = readl_relaxed(base + SA1111_INTEN1); + save->wakepol0 = readl_relaxed(base + SA1111_WAKEPOL0); + save->wakepol1 = readl_relaxed(base + SA1111_WAKEPOL1); + save->wakeen0 = readl_relaxed(base + SA1111_WAKEEN0); + save->wakeen1 = readl_relaxed(base + SA1111_WAKEEN1); /* * Disable. */ - val = sa1111_readl(sachip->base + SA1111_SKCR); - sa1111_writel(val | SKCR_SLEEP, sachip->base + SA1111_SKCR); + val = readl_relaxed(sachip->base + SA1111_SKCR); + writel_relaxed(val | SKCR_SLEEP, sachip->base + SA1111_SKCR); clk_disable(sachip->clk); @@ -1023,7 +1021,7 @@ static int sa1111_resume_noirq(struct device *dev) * Ensure that the SA1111 is still here. * FIXME: shouldn't do this here. */ - id = sa1111_readl(sachip->base + SA1111_SKID); + id = readl_relaxed(sachip->base + SA1111_SKID); if ((id & SKID_ID_MASK) != SKID_SA1111_ID) { __sa1111_remove(sachip); dev_set_drvdata(dev, NULL); @@ -1047,26 +1045,26 @@ static int sa1111_resume_noirq(struct device *dev) */ spin_lock_irqsave(&sachip->lock, flags); - sa1111_writel(0, sachip->base + SA1111_INTC + SA1111_INTEN0); - sa1111_writel(0, sachip->base + SA1111_INTC + SA1111_INTEN1); + writel_relaxed(0, sachip->base + SA1111_INTC + SA1111_INTEN0); + writel_relaxed(0, sachip->base + SA1111_INTC + SA1111_INTEN1); base = sachip->base; - sa1111_writel(save->skcr, base + SA1111_SKCR); - sa1111_writel(save->skpcr, base + SA1111_SKPCR); - sa1111_writel(save->skcdr, base + SA1111_SKCDR); - sa1111_writel(save->skaud, base + SA1111_SKAUD); - sa1111_writel(save->skpwm0, base + SA1111_SKPWM0); - sa1111_writel(save->skpwm1, base + SA1111_SKPWM1); + writel_relaxed(save->skcr, base + SA1111_SKCR); + writel_relaxed(save->skpcr, base + SA1111_SKPCR); + writel_relaxed(save->skcdr, base + SA1111_SKCDR); + writel_relaxed(save->skaud, base + SA1111_SKAUD); + writel_relaxed(save->skpwm0, base + SA1111_SKPWM0); + writel_relaxed(save->skpwm1, base + SA1111_SKPWM1); base = sachip->base + SA1111_INTC; - sa1111_writel(save->intpol0, base + SA1111_INTPOL0); - sa1111_writel(save->intpol1, base + SA1111_INTPOL1); - sa1111_writel(save->inten0, base + SA1111_INTEN0); - sa1111_writel(save->inten1, base + SA1111_INTEN1); - sa1111_writel(save->wakepol0, base + SA1111_WAKEPOL0); - sa1111_writel(save->wakepol1, base + SA1111_WAKEPOL1); - sa1111_writel(save->wakeen0, base + SA1111_WAKEEN0); - sa1111_writel(save->wakeen1, base + SA1111_WAKEEN1); + writel_relaxed(save->intpol0, base + SA1111_INTPOL0); + writel_relaxed(save->intpol1, base + SA1111_INTPOL1); + writel_relaxed(save->inten0, base + SA1111_INTEN0); + writel_relaxed(save->inten1, base + SA1111_INTEN1); + writel_relaxed(save->wakepol0, base + SA1111_WAKEPOL0); + writel_relaxed(save->wakepol1, base + SA1111_WAKEPOL1); + writel_relaxed(save->wakeen0, base + SA1111_WAKEEN0); + writel_relaxed(save->wakeen1, base + SA1111_WAKEEN1); spin_unlock_irqrestore(&sachip->lock, flags); @@ -1153,7 +1151,7 @@ static unsigned int __sa1111_pll_clock(struct sa1111 *sachip) { unsigned int skcdr, fbdiv, ipdiv, opdiv; - skcdr = sa1111_readl(sachip->base + SA1111_SKCDR); + skcdr = readl_relaxed(sachip->base + SA1111_SKCDR); fbdiv = (skcdr & 0x007f) + 2; ipdiv = ((skcdr & 0x0f80) >> 7) + 2; @@ -1195,13 +1193,13 @@ void sa1111_select_audio_mode(struct sa1111_dev *sadev, int mode) spin_lock_irqsave(&sachip->lock, flags); - val = sa1111_readl(sachip->base + SA1111_SKCR); + val = readl_relaxed(sachip->base + SA1111_SKCR); if (mode == SA1111_AUDIO_I2S) { val &= ~SKCR_SELAC; } else { val |= SKCR_SELAC; } - sa1111_writel(val, sachip->base + SA1111_SKCR); + writel_relaxed(val, sachip->base + SA1111_SKCR); spin_unlock_irqrestore(&sachip->lock, flags); } @@ -1226,7 +1224,7 @@ int sa1111_set_audio_rate(struct sa1111_dev *sadev, int rate) if (div > 128) div = 128; - sa1111_writel(div - 1, sachip->base + SA1111_SKAUD); + writel_relaxed(div - 1, sachip->base + SA1111_SKAUD); return 0; } @@ -1244,7 +1242,7 @@ int sa1111_get_audio_rate(struct sa1111_dev *sadev) if (sadev->devid != SA1111_DEVID_SAC) return -EINVAL; - div = sa1111_readl(sachip->base + SA1111_SKAUD) + 1; + div = readl_relaxed(sachip->base + SA1111_SKAUD) + 1; return __sa1111_pll_clock(sachip) / (256 * div); } @@ -1261,10 +1259,10 @@ void sa1111_set_io_dir(struct sa1111_dev *sadev, #define MODIFY_BITS(port, mask, dir) \ if (mask) { \ - val = sa1111_readl(port); \ + val = readl_relaxed(port); \ val &= ~(mask); \ val |= (dir) & (mask); \ - sa1111_writel(val, port); \ + writel_relaxed(val, port); \ } spin_lock_irqsave(&sachip->lock, flags); @@ -1329,8 +1327,8 @@ int sa1111_enable_device(struct sa1111_dev *sadev) if (ret == 0) { spin_lock_irqsave(&sachip->lock, flags); - val = sa1111_readl(sachip->base + SA1111_SKPCR); - sa1111_writel(val | sadev->skpcr_mask, sachip->base + SA1111_SKPCR); + val = readl_relaxed(sachip->base + SA1111_SKPCR); + writel_relaxed(val | sadev->skpcr_mask, sachip->base + SA1111_SKPCR); spin_unlock_irqrestore(&sachip->lock, flags); } return ret; @@ -1348,8 +1346,8 @@ void sa1111_disable_device(struct sa1111_dev *sadev) unsigned int val; spin_lock_irqsave(&sachip->lock, flags); - val = sa1111_readl(sachip->base + SA1111_SKPCR); - sa1111_writel(val & ~sadev->skpcr_mask, sachip->base + SA1111_SKPCR); + val = readl_relaxed(sachip->base + SA1111_SKPCR); + writel_relaxed(val & ~sadev->skpcr_mask, sachip->base + SA1111_SKPCR); spin_unlock_irqrestore(&sachip->lock, flags); if (sachip->pdata && sachip->pdata->disable) -- cgit v1.2.3 From 4c9f6d31ddced23d4c149bc6af6a2bb93d97863f Mon Sep 17 00:00:00 2001 From: Russell King Date: Wed, 7 Sep 2016 13:50:27 +0100 Subject: ARM: sa1111: use an irqdomain for SA1111 interrupts Use an IRQ domain for SA1111 interrupts, which allows us to separate the hardware interrupt number from the Linux interrupt number. We can then use the hardware interrupt number stored in the irq_data to calculate the register offsets and mask. Signed-off-by: Russell King --- arch/arm/common/sa1111.c | 79 +++++++++++++++++++++++++++++++----------------- 1 file changed, 51 insertions(+), 28 deletions(-) (limited to 'arch/arm/common') diff --git a/arch/arm/common/sa1111.c b/arch/arm/common/sa1111.c index 36c2162c95af..d6a0ce7b51cf 100644 --- a/arch/arm/common/sa1111.c +++ b/arch/arm/common/sa1111.c @@ -108,6 +108,7 @@ struct sa1111 { spinlock_t lock; void __iomem *base; struct sa1111_platform_data *pdata; + struct irq_domain *irqdomain; struct gpio_chip gc; #ifdef CONFIG_PM void *saved_state; @@ -193,6 +194,14 @@ static struct sa1111_dev_info sa1111_devices[] = { }, }; +static void sa1111_handle_irqdomain(struct irq_domain *irqdomain, int irq) +{ + struct irq_desc *d = irq_to_desc(irq_linear_revmap(irqdomain, irq)); + + if (d) + generic_handle_irq_desc(d); +} + /* * SA1111 interrupt support. Since clearing an IRQ while there are * active IRQs causes the interrupt output to pulse, the upper levels @@ -202,6 +211,7 @@ static void sa1111_irq_handler(struct irq_desc *desc) { unsigned int stat0, stat1, i; struct sa1111 *sachip = irq_desc_get_handler_data(desc); + struct irq_domain *irqdomain; void __iomem *mapbase = sachip->base + SA1111_INTC; stat0 = readl_relaxed(mapbase + SA1111_INTSTATCLR0); @@ -218,33 +228,28 @@ static void sa1111_irq_handler(struct irq_desc *desc) return; } + irqdomain = sachip->irqdomain; + for (i = 0; stat0; i++, stat0 >>= 1) if (stat0 & 1) - generic_handle_irq(i + sachip->irq_base); + sa1111_handle_irqdomain(irqdomain, i); for (i = 32; stat1; i++, stat1 >>= 1) if (stat1 & 1) - generic_handle_irq(i + sachip->irq_base); + sa1111_handle_irqdomain(irqdomain, i); /* For level-based interrupts */ desc->irq_data.chip->irq_unmask(&desc->irq_data); } -#define SA1111_IRQMASK_LO(x) (1 << (x - sachip->irq_base)) -#define SA1111_IRQMASK_HI(x) (1 << (x - sachip->irq_base - 32)) - static u32 sa1111_irqmask(struct irq_data *d) { - struct sa1111 *sachip = irq_data_get_irq_chip_data(d); - - return BIT((d->irq - sachip->irq_base) & 31); + return BIT(irqd_to_hwirq(d) & 31); } static int sa1111_irqbank(struct irq_data *d) { - struct sa1111 *sachip = irq_data_get_irq_chip_data(d); - - return ((d->irq - sachip->irq_base) / 32) * 4; + return (irqd_to_hwirq(d) / 32) * 4; } static void sa1111_ack_irq(struct irq_data *d) @@ -350,10 +355,26 @@ static struct irq_chip sa1111_irq_chip = { .irq_set_wake = sa1111_wake_irq, }; +static int sa1111_irqdomain_map(struct irq_domain *d, unsigned int irq, + irq_hw_number_t hwirq) +{ + struct sa1111 *sachip = d->host_data; + + irq_set_chip_data(irq, sachip); + irq_set_chip_and_handler(irq, &sa1111_irq_chip, handle_edge_irq); + irq_clear_status_flags(irq, IRQ_NOREQUEST | IRQ_NOPROBE); + + return 0; +} + +static const struct irq_domain_ops sa1111_irqdomain_ops = { + .map = sa1111_irqdomain_map, + .xlate = irq_domain_xlate_twocell, +}; + static int sa1111_setup_irq(struct sa1111 *sachip, unsigned irq_base) { void __iomem *irqbase = sachip->base + SA1111_INTC; - unsigned i, irq; int ret; /* @@ -391,19 +412,21 @@ static int sa1111_setup_irq(struct sa1111 *sachip, unsigned irq_base) writel_relaxed(~0, irqbase + SA1111_INTSTATCLR0); writel_relaxed(~0, irqbase + SA1111_INTSTATCLR1); - for (i = IRQ_GPAIN0; i <= SSPROR; i++) { - irq = sachip->irq_base + i; - irq_set_chip_and_handler(irq, &sa1111_irq_chip, handle_edge_irq); - irq_set_chip_data(irq, sachip); - irq_clear_status_flags(irq, IRQ_NOREQUEST | IRQ_NOPROBE); + sachip->irqdomain = irq_domain_add_linear(NULL, SA1111_IRQ_NR, + &sa1111_irqdomain_ops, + sachip); + if (!sachip->irqdomain) { + irq_free_descs(sachip->irq_base, SA1111_IRQ_NR); + return -ENOMEM; } - for (i = AUDXMTDMADONEA; i <= IRQ_S1_BVD1_STSCHG; i++) { - irq = sachip->irq_base + i; - irq_set_chip_and_handler(irq, &sa1111_irq_chip, handle_edge_irq); - irq_set_chip_data(irq, sachip); - irq_clear_status_flags(irq, IRQ_NOREQUEST | IRQ_NOPROBE); - } + irq_domain_associate_many(sachip->irqdomain, + sachip->irq_base + IRQ_GPAIN0, + IRQ_GPAIN0, SSPROR + 1 - IRQ_GPAIN0); + irq_domain_associate_many(sachip->irqdomain, + sachip->irq_base + AUDXMTDMADONEA, + AUDXMTDMADONEA, + IRQ_S1_BVD1_STSCHG + 1 - AUDXMTDMADONEA); /* * Register SA1111 interrupt @@ -428,12 +451,12 @@ static void sa1111_remove_irq(struct sa1111 *sachip) writel_relaxed(0, irqbase + SA1111_WAKEEN0); writel_relaxed(0, irqbase + SA1111_WAKEEN1); - if (sachip->irq != NO_IRQ) { - irq_set_chained_handler_and_data(sachip->irq, NULL, NULL); - irq_free_descs(sachip->irq_base, SA1111_IRQ_NR); + irq_domain_remove(sachip->irqdomain); - release_mem_region(sachip->phys + SA1111_INTC, 512); - } + irq_set_chained_handler_and_data(sachip->irq, NULL, NULL); + irq_free_descs(sachip->irq_base, SA1111_IRQ_NR); + + release_mem_region(sachip->phys + SA1111_INTC, 512); } enum { -- cgit v1.2.3 From be2bedb08fe889f7621c1f3f400900ad2394f65b Mon Sep 17 00:00:00 2001 From: Russell King Date: Tue, 6 Sep 2016 10:11:46 +0100 Subject: ARM: sa1111: map interrupt numbers through irqdomain Map the interrupt numbers for SA1111 through the SA1111 IRQ domain rather than doing our own translation. This allows us to eliminate the irq_base sachip member. Signed-off-by: Russell King --- arch/arm/common/sa1111.c | 40 ++++++++++++++++++++++++++-------------- 1 file changed, 26 insertions(+), 14 deletions(-) (limited to 'arch/arm/common') diff --git a/arch/arm/common/sa1111.c b/arch/arm/common/sa1111.c index d6a0ce7b51cf..a2c878769eaf 100644 --- a/arch/arm/common/sa1111.c +++ b/arch/arm/common/sa1111.c @@ -126,7 +126,7 @@ struct sa1111_dev_info { unsigned long skpcr_mask; bool dma; unsigned int devid; - unsigned int irq[6]; + unsigned int hwirq[6]; }; static struct sa1111_dev_info sa1111_devices[] = { @@ -135,7 +135,7 @@ static struct sa1111_dev_info sa1111_devices[] = { .skpcr_mask = SKPCR_UCLKEN, .dma = true, .devid = SA1111_DEVID_USB, - .irq = { + .hwirq = { IRQ_USBPWR, IRQ_HCIM, IRQ_HCIBUFFACC, @@ -149,7 +149,7 @@ static struct sa1111_dev_info sa1111_devices[] = { .skpcr_mask = SKPCR_I2SCLKEN | SKPCR_L3CLKEN, .dma = true, .devid = SA1111_DEVID_SAC, - .irq = { + .hwirq = { AUDXMTDMADONEA, AUDXMTDMADONEB, AUDRCVDMADONEA, @@ -165,7 +165,7 @@ static struct sa1111_dev_info sa1111_devices[] = { .offset = SA1111_KBD, .skpcr_mask = SKPCR_PTCLKEN, .devid = SA1111_DEVID_PS2_KBD, - .irq = { + .hwirq = { IRQ_TPRXINT, IRQ_TPTXINT }, @@ -174,7 +174,7 @@ static struct sa1111_dev_info sa1111_devices[] = { .offset = SA1111_MSE, .skpcr_mask = SKPCR_PMCLKEN, .devid = SA1111_DEVID_PS2_MSE, - .irq = { + .hwirq = { IRQ_MSRXINT, IRQ_MSTXINT }, @@ -183,7 +183,7 @@ static struct sa1111_dev_info sa1111_devices[] = { .offset = 0x1800, .skpcr_mask = 0, .devid = SA1111_DEVID_PCMCIA, - .irq = { + .hwirq = { IRQ_S0_READY_NINT, IRQ_S0_CD_VALID, IRQ_S0_BVD1_STSCHG, @@ -194,6 +194,11 @@ static struct sa1111_dev_info sa1111_devices[] = { }, }; +static int sa1111_map_irq(struct sa1111 *sachip, irq_hw_number_t hwirq) +{ + return irq_create_mapping(sachip->irqdomain, hwirq); +} + static void sa1111_handle_irqdomain(struct irq_domain *irqdomain, int irq) { struct irq_desc *d = irq_to_desc(irq_linear_revmap(irqdomain, irq)); @@ -360,6 +365,10 @@ static int sa1111_irqdomain_map(struct irq_domain *d, unsigned int irq, { struct sa1111 *sachip = d->host_data; + /* Disallow unavailable interrupts */ + if (hwirq > SSPROR && hwirq < AUDXMTDMADONEA) + return -EINVAL; + irq_set_chip_data(irq, sachip); irq_set_chip_and_handler(irq, &sa1111_irq_chip, handle_edge_irq); irq_clear_status_flags(irq, IRQ_NOREQUEST | IRQ_NOPROBE); @@ -443,7 +452,9 @@ static int sa1111_setup_irq(struct sa1111 *sachip, unsigned irq_base) static void sa1111_remove_irq(struct sa1111 *sachip) { + struct irq_domain *domain = sachip->irqdomain; void __iomem *irqbase = sachip->base + SA1111_INTC; + int i; /* disable all IRQs */ writel_relaxed(0, irqbase + SA1111_INTEN0); @@ -451,10 +462,10 @@ static void sa1111_remove_irq(struct sa1111 *sachip) writel_relaxed(0, irqbase + SA1111_WAKEEN0); writel_relaxed(0, irqbase + SA1111_WAKEEN1); - irq_domain_remove(sachip->irqdomain); - irq_set_chained_handler_and_data(sachip->irq, NULL, NULL); - irq_free_descs(sachip->irq_base, SA1111_IRQ_NR); + for (i = 0; i < SA1111_IRQ_NR; i++) + irq_dispose_mapping(irq_find_mapping(domain, i)); + irq_domain_remove(domain); release_mem_region(sachip->phys + SA1111_INTC, 512); } @@ -595,7 +606,7 @@ static int sa1111_gpio_to_irq(struct gpio_chip *gc, unsigned offset) { struct sa1111 *sachip = gc_to_sa1111(gc); - return sachip->irq_base + offset; + return sa1111_map_irq(sachip, offset); } static int sa1111_setup_gpios(struct sa1111 *sachip) @@ -746,8 +757,8 @@ sa1111_init_one_child(struct sa1111 *sachip, struct resource *parent, dev->mapbase = sachip->base + info->offset; dev->skpcr_mask = info->skpcr_mask; - for (i = 0; i < ARRAY_SIZE(info->irq); i++) - dev->irq[i] = sachip->irq_base + info->irq[i]; + for (i = 0; i < ARRAY_SIZE(info->hwirq); i++) + dev->hwirq[i] = info->hwirq[i]; /* * If the parent device has a DMA mask associated with it, and @@ -1380,9 +1391,10 @@ EXPORT_SYMBOL(sa1111_disable_device); int sa1111_get_irq(struct sa1111_dev *sadev, unsigned num) { - if (num >= ARRAY_SIZE(sadev->irq)) + struct sa1111 *sachip = sa1111_chip_driver(sadev); + if (num >= ARRAY_SIZE(sadev->hwirq)) return -EINVAL; - return sadev->irq[num]; + return sa1111_map_irq(sachip, sadev->hwirq[num]); } EXPORT_SYMBOL_GPL(sa1111_get_irq); -- cgit v1.2.3 From a21b4c10c7bf5b58112afa20d6fa829e8d74e3e6 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Wed, 10 Jan 2018 17:53:18 +0100 Subject: ARM: 8743/1: bL_switcher: add MODULE_LICENSE tag Without this tag, we get a build warning: WARNING: modpost: missing MODULE_LICENSE() in arch/arm/common/bL_switcher_dummy_if.o For completeness, I'm also adding author and description fields. Signed-off-by: Arnd Bergmann Signed-off-by: Russell King --- arch/arm/common/bL_switcher_dummy_if.c | 4 ++++ 1 file changed, 4 insertions(+) (limited to 'arch/arm/common') diff --git a/arch/arm/common/bL_switcher_dummy_if.c b/arch/arm/common/bL_switcher_dummy_if.c index 4c10c6452678..f4dc1714a79e 100644 --- a/arch/arm/common/bL_switcher_dummy_if.c +++ b/arch/arm/common/bL_switcher_dummy_if.c @@ -57,3 +57,7 @@ static struct miscdevice bL_switcher_device = { &bL_switcher_fops }; module_misc_device(bL_switcher_device); + +MODULE_AUTHOR("Nicolas Pitre "); +MODULE_LICENSE("GPL v2"); +MODULE_DESCRIPTION("big.LITTLE switcher dummy user interface"); -- cgit v1.2.3