PXA3xx platforms have 56 interrupts that are stored in two ICMR registers. The code in pxa_irq_suspend() and pxa_irq_resume() however does a simple division by 32 which only leads to one register being saved at suspend and restored at resume time. The NAND interrupt setting, for instance, is lost. Fix this by using DIV_ROUND_UP() instead.
Unified · Split
| @@ -185,7 +185,7 @@ static int pxa_irq_suspend(void) · 184 unmodified lines | ||
| 185 | 185 | { |
| 186 | 186 | int i; |
| 187 | 187 | |
| 188 | − for (i = 0; i < pxa_internal_irq_nr / 32; i++) { | |
| 188 | + for (i = 0; i < DIV_ROUND_UP(pxa_internal_irq_nr, 32); i++) { | |
| 189 | 189 | void __iomem *base = irq_base(i); |
| 190 | 190 | |
| 191 | 191 | saved_icmr[i] = __raw_readl(base + ICMR); |
| @@ -204,7 +204,7 @@ static void pxa_irq_resume(void) · 12 unmodified lines | ||
| 204 | 204 | { |
| 205 | 205 | int i; |
| 206 | 206 | |
| 207 | − for (i = 0; i < pxa_internal_irq_nr / 32; i++) { | |
| 207 | + for (i = 0; i < DIV_ROUND_UP(pxa_internal_irq_nr, 32); i++) { | |
| 208 | 208 | void __iomem *base = irq_base(i); |
| 209 | 209 | |
| 210 | 210 | __raw_writel(saved_icmr[i], base + ICMR); |