diff options
Diffstat (limited to 'drivers/memory/tegra30-mc.c')
| -rw-r--r-- | drivers/memory/tegra30-mc.c | 46 |
1 files changed, 21 insertions, 25 deletions
diff --git a/drivers/memory/tegra30-mc.c b/drivers/memory/tegra30-mc.c index e56ff04eb5c..ef7934535fd 100644 --- a/drivers/memory/tegra30-mc.c +++ b/drivers/memory/tegra30-mc.c @@ -17,6 +17,7 @@ * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. */ +#include <linux/err.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/ratelimit.h> @@ -95,11 +96,11 @@ static inline u32 mc_readl(struct tegra30_mc *mc, u32 offs) if (offs < 0x10) val = readl(mc->regs[0] + offs); - if (offs < 0x1f0) + else if (offs < 0x1f0) val = readl(mc->regs[1] + offs - 0x3c); - if (offs < 0x228) + else if (offs < 0x228) val = readl(mc->regs[2] + offs - 0x200); - if (offs < 0x400) + else if (offs < 0x400) val = readl(mc->regs[3] + offs - 0x284); return val; @@ -107,22 +108,14 @@ static inline u32 mc_readl(struct tegra30_mc *mc, u32 offs) static inline void mc_writel(struct tegra30_mc *mc, u32 val, u32 offs) { - if (offs < 0x10) { + if (offs < 0x10) writel(val, mc->regs[0] + offs); - return; - } - if (offs < 0x1f0) { + else if (offs < 0x1f0) writel(val, mc->regs[1] + offs - 0x3c); - return; - } - if (offs < 0x228) { + else if (offs < 0x228) writel(val, mc->regs[2] + offs - 0x200); - return; - } - if (offs < 0x400) { + else if (offs < 0x400) writel(val, mc->regs[3] + offs - 0x284); - return; - } } static const char * const tegra30_mc_client[] = { @@ -225,7 +218,7 @@ static void tegra30_mc_decode(struct tegra30_mc *mc, int n) return; } - err = readl(mc + MC_ERR_STATUS); + err = mc_readl(mc, MC_ERR_STATUS); type = (err & MC_ERR_TYPE_MASK) >> MC_ERR_TYPE_SHIFT; perm = (err & MC_ERR_INVALID_SMMU_PAGE_MASK) >> @@ -242,7 +235,7 @@ static void tegra30_mc_decode(struct tegra30_mc *mc, int n) if (cid < ARRAY_SIZE(tegra30_mc_client)) client = tegra30_mc_client[cid]; - addr = readl(mc + MC_ERR_ADR); + addr = mc_readl(mc, MC_ERR_ADR); dev_err_ratelimited(mc->dev, "%s (0x%08x): 0x%08x %s (%s %s %s %s)\n", mc_int_err[idx], err, addr, client, @@ -275,6 +268,7 @@ static const u32 tegra30_mc_ctx[] = { MC_INTMASK, }; +#ifdef CONFIG_PM static int tegra30_mc_suspend(struct device *dev) { int i; @@ -298,12 +292,13 @@ static int tegra30_mc_resume(struct device *dev) mc_readl(mc, MC_TIMING_CONTROL); return 0; } +#endif static UNIVERSAL_DEV_PM_OPS(tegra30_mc_pm, tegra30_mc_suspend, tegra30_mc_resume, NULL); -static const struct of_device_id tegra30_mc_of_match[] __devinitconst = { +static const struct of_device_id tegra30_mc_of_match[] = { { .compatible = "nvidia,tegra30-mc", }, {}, }; @@ -318,13 +313,16 @@ static irqreturn_t tegra30_mc_isr(int irq, void *data) mask &= stat; if (!mask) return IRQ_NONE; - while ((bit = ffs(mask)) != 0) + while ((bit = ffs(mask)) != 0) { tegra30_mc_decode(mc, bit - 1); + mask &= ~BIT(bit - 1); + } + mc_writel(mc, stat, MC_INTSTATUS); return IRQ_HANDLED; } -static int __devinit tegra30_mc_probe(struct platform_device *pdev) +static int tegra30_mc_probe(struct platform_device *pdev) { struct resource *irq; struct tegra30_mc *mc; @@ -342,11 +340,9 @@ static int __devinit tegra30_mc_probe(struct platform_device *pdev) struct resource *res; res = platform_get_resource(pdev, IORESOURCE_MEM, i); - if (!res) - return -ENODEV; - mc->regs[i] = devm_request_and_ioremap(&pdev->dev, res); - if (!mc->regs[i]) - return -EBUSY; + mc->regs[i] = devm_ioremap_resource(&pdev->dev, res); + if (IS_ERR(mc->regs[i])) + return PTR_ERR(mc->regs[i]); } irq = platform_get_resource(pdev, IORESOURCE_IRQ, 0); |