Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]
Groups > linux.kernel > #1622876
| From | Jisheng Zhang <jszhang@marvell.com> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH] gpio: dwapb: use dwapb_read instead of readl_relaxed |
| Date | 2017-04-13 12:00 +0200 |
| Message-ID | <tvJHI-18N-15@gated-at.bofh.it> (permalink) |
| Organization | linux.* mail to news gateway |
Commit 67809b974a07 ("GPIO: gpio-dwapb: Change readl&writel to
dwapb_read&dwapb_write") missed this readl_relaxed() usage, I'm not
sure the reason, maybe for performance reason? But if we do care
the performance, we could use the relaxed io in dwapb_read and
dwapb_write.
Signed-off-by: Jisheng Zhang <jszhang@marvell.com>
---
drivers/gpio/gpio-dwapb.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpio/gpio-dwapb.c b/drivers/gpio/gpio-dwapb.c
index 9c15ee4ef4e9..fe6cdb5d03d9 100644
--- a/drivers/gpio/gpio-dwapb.c
+++ b/drivers/gpio/gpio-dwapb.c
@@ -128,7 +128,7 @@ static void dwapb_toggle_trigger(struct dwapb_gpio *gpio, unsigned int offs)
static u32 dwapb_do_irq(struct dwapb_gpio *gpio)
{
- u32 irq_status = readl_relaxed(gpio->regs + GPIO_INTSTATUS);
+ u32 irq_status = dwapb_read(gpio, GPIO_INTSTATUS);
u32 ret = irq_status;
while (irq_status) {
--
2.11.0
Back to linux.kernel | Previous | Next — Next in thread | Find similar | Unroll thread
[PATCH] gpio: dwapb: use dwapb_read instead of readl_relaxed Jisheng Zhang <jszhang@marvell.com> - 2017-04-13 12:00 +0200 Re: [PATCH] gpio: dwapb: use dwapb_read instead of readl_relaxed Linus Walleij <linus.walleij@linaro.org> - 2017-04-24 15:20 +0200
csiph-web