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ptp_pch: Use ioread64_hi_lo() / iowrite64_hi_lo()
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> Link: https://lore.kernel.org/r/20220207210730.75252-3-andriy.shevchenko@linux.intel.com Acked-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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@ -14,6 +14,7 @@
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#include <linux/interrupt.h>
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#include <linux/io.h>
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#include <linux/io-64-nonatomic-lo-hi.h>
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#include <linux/io-64-nonatomic-hi-lo.h>
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#include <linux/irq.h>
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#include <linux/kernel.h>
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#include <linux/module.h>
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@ -298,19 +299,16 @@ static irqreturn_t isr(int irq, void *priv)
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struct pch_dev *pch_dev = priv;
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struct pch_ts_regs __iomem *regs = pch_dev->regs;
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struct ptp_clock_event event;
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u32 ack = 0, lo, hi, val;
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u32 ack = 0, val;
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val = ioread32(®s->event);
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if (val & PCH_TSE_SNS) {
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ack |= PCH_TSE_SNS;
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if (pch_dev->exts0_enabled) {
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hi = ioread32(®s->asms_hi);
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lo = ioread32(®s->asms_lo);
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event.type = PTP_CLOCK_EXTTS;
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event.index = 0;
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event.timestamp = ((u64) hi) << 32;
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event.timestamp |= lo;
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event.timestamp = ioread64_hi_lo(®s->asms_hi);
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event.timestamp <<= TICKS_NS_SHIFT;
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ptp_clock_event(pch_dev->ptp_clock, &event);
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}
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@ -319,12 +317,9 @@ static irqreturn_t isr(int irq, void *priv)
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if (val & PCH_TSE_SNM) {
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ack |= PCH_TSE_SNM;
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if (pch_dev->exts1_enabled) {
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hi = ioread32(®s->amms_hi);
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lo = ioread32(®s->amms_lo);
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event.type = PTP_CLOCK_EXTTS;
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event.index = 1;
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event.timestamp = ((u64) hi) << 32;
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event.timestamp |= lo;
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event.timestamp = ioread64_hi_lo(®s->asms_hi);
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event.timestamp <<= TICKS_NS_SHIFT;
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ptp_clock_event(pch_dev->ptp_clock, &event);
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}
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