A-Team_Digital_Solutions/android_kernel_motorola_sm6375
Watch
2
0
Fork
You've already forked android_kernel_motorola_sm6375
 0
mirror of https://github.com/BobTheBlinker/android_kernel_motorola_sm6375.git synced 2026-10-28 02:32:09 -04:00
Code Issues Projects Releases Packages Wiki Activity

irqchip: dw-apb-ictl: Always use use {readl|writel}_relaxed

Browse source 
There's no DMA at all, the device type memory attribute can ensure the
operations order and relaxed version imply compiler barrier, so we are safe
to use relaxed version to improve the performance a bit.

Signed-off-by: Jisheng Zhang <[email protected]>
Acked-by: Sebastian Hesselbarth <[email protected]>
Link: https://lkml.kernel.org/r/[email protected]
Signed-off-by: Jason Cooper <[email protected]>
This commit is contained in:
Jisheng Zhang 2014-11-12 14:22:52 +08:00 • committed by Jason Cooper
commit 8876ce7d1c
1 changed files with 6 additions and 6 deletions
Download patch file Download diff file Expand all files Collapse all files

12
drivers/irqchip/irq-dw-apb-ictl.c
View file

@ -94,16 +94,16 @@ static int __init dw_apb_ictl_init(struct device_node *np,
*/
/* mask and enable all interrupts */
writel(~0, iobase + APB_INT_MASK_L);
writel(~0, iobase + APB_INT_MASK_H);
writel(~0, iobase + APB_INT_ENABLE_L);
writel(~0, iobase + APB_INT_ENABLE_H);
writel_relaxed(~0, iobase + APB_INT_MASK_L);
writel_relaxed(~0, iobase + APB_INT_MASK_H);
writel_relaxed(~0, iobase + APB_INT_ENABLE_L);
writel_relaxed(~0, iobase + APB_INT_ENABLE_H);
reg = readl(iobase + APB_INT_ENABLE_H);
reg = readl_relaxed(iobase + APB_INT_ENABLE_H);
if (reg)
nrirqs = 32 + fls(reg);
else
nrirqs = fls(readl(iobase + APB_INT_ENABLE_L));
nrirqs = fls(readl_relaxed(iobase + APB_INT_ENABLE_L));
domain = irq_domain_add_linear(np, nrirqs,
&irq_generic_chip_ops, NULL);