From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
netdev@vger.kernel.org, linux-kernel@vger.kernel.org
Cc: Richard Cochran <richardcochran@gmail.com>
Subject: [PATCH v2 net-next 3/6] ptp_pch: Use ioread64_hi_lo() / iowrite64_hi_lo()
Date: Mon, 7 Feb 2022 23:07:27 +0200 [thread overview]
Message-ID: <20220207210730.75252-3-andriy.shevchenko@linux.intel.com> (raw)
In-Reply-To: <20220207210730.75252-1-andriy.shevchenko@linux.intel.com>
There is already helper functions to do 64-bit I/O on 32-bit machines or
buses, thus we don't need to reinvent the wheel.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
v2: no changes
drivers/ptp/ptp_pch.c | 13 ++++---------
1 file changed, 4 insertions(+), 9 deletions(-)
diff --git a/drivers/ptp/ptp_pch.c b/drivers/ptp/ptp_pch.c
index f7b54256d94f..2eef90147dfe 100644
--- a/drivers/ptp/ptp_pch.c
+++ b/drivers/ptp/ptp_pch.c
@@ -14,6 +14,7 @@
#include <linux/interrupt.h>
#include <linux/io.h>
#include <linux/io-64-nonatomic-lo-hi.h>
+#include <linux/io-64-nonatomic-hi-lo.h>
#include <linux/irq.h>
#include <linux/kernel.h>
#include <linux/module.h>
@@ -298,19 +299,16 @@ static irqreturn_t isr(int irq, void *priv)
struct pch_dev *pch_dev = priv;
struct pch_ts_regs __iomem *regs = pch_dev->regs;
struct ptp_clock_event event;
- u32 ack = 0, lo, hi, val;
+ u32 ack = 0, val;
val = ioread32(®s->event);
if (val & PCH_TSE_SNS) {
ack |= PCH_TSE_SNS;
if (pch_dev->exts0_enabled) {
- hi = ioread32(®s->asms_hi);
- lo = ioread32(®s->asms_lo);
event.type = PTP_CLOCK_EXTTS;
event.index = 0;
- event.timestamp = ((u64) hi) << 32;
- event.timestamp |= lo;
+ event.timestamp = ioread64_hi_lo(®s->asms_hi);
event.timestamp <<= TICKS_NS_SHIFT;
ptp_clock_event(pch_dev->ptp_clock, &event);
}
@@ -319,12 +317,9 @@ static irqreturn_t isr(int irq, void *priv)
if (val & PCH_TSE_SNM) {
ack |= PCH_TSE_SNM;
if (pch_dev->exts1_enabled) {
- hi = ioread32(®s->amms_hi);
- lo = ioread32(®s->amms_lo);
event.type = PTP_CLOCK_EXTTS;
event.index = 1;
- event.timestamp = ((u64) hi) << 32;
- event.timestamp |= lo;
+ event.timestamp = ioread64_hi_lo(®s->asms_hi);
event.timestamp <<= TICKS_NS_SHIFT;
ptp_clock_event(pch_dev->ptp_clock, &event);
}
--
2.34.1
next prev parent reply other threads:[~2022-02-07 21:07 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-02-07 21:07 [PATCH v2 net-next 1/6] ptp_pch: use mac_pton() Andy Shevchenko
2022-02-07 21:07 ` [PATCH v2 net-next 2/6] ptp_pch: Use ioread64_lo_hi() / iowrite64_lo_hi() Andy Shevchenko
2022-02-07 21:07 ` Andy Shevchenko [this message]
2022-02-07 21:07 ` [PATCH v2 net-next 4/6] ptp_pch: Switch to use module_pci_driver() macro Andy Shevchenko
2022-02-07 21:07 ` [PATCH v2 net-next 5/6] ptp_pch: Convert to use managed functions pcim_* and devm_* Andy Shevchenko
2022-02-07 21:07 ` [PATCH v2 net-next 6/6] ptp_pch: Remove unused pch_pm_ops Andy Shevchenko
2022-02-08 3:04 ` [PATCH v2 net-next 1/6] ptp_pch: use mac_pton() Richard Cochran
2022-02-09 5:20 ` patchwork-bot+netdevbpf
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