f2f42a54e8
The qca8k patch series brings the numbering to 799. This patch renames 7xx patches to create space for more backports to be added. Signed-off-by: Matthew Hagan <mnhagan88@gmail.com> [rename 729->719] Signed-off-by: Adrian Schmutzler <freifunk@adrianschmutzler.de>
62 lines
1.6 KiB
Diff
62 lines
1.6 KiB
Diff
From 2ad255f2faaffb3af786031fba2e7955454b558a Mon Sep 17 00:00:00 2001
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From: Ansuel Smith <ansuelsmth@gmail.com>
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Date: Fri, 14 May 2021 22:59:52 +0200
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Subject: [PATCH] net: dsa: qca8k: use iopoll macro for qca8k_busy_wait
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Use iopoll macro instead of while loop.
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Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com>
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Reviewed-by: Andrew Lunn <andrew@lunn.ch>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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---
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drivers/net/dsa/qca8k.c | 23 +++++++++++------------
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drivers/net/dsa/qca8k.h | 2 ++
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2 files changed, 13 insertions(+), 12 deletions(-)
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--- a/drivers/net/dsa/qca8k.c
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+++ b/drivers/net/dsa/qca8k.c
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@@ -262,21 +262,20 @@ static struct regmap_config qca8k_regmap
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static int
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qca8k_busy_wait(struct qca8k_priv *priv, u32 reg, u32 mask)
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{
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- unsigned long timeout;
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+ u32 val;
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+ int ret;
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- timeout = jiffies + msecs_to_jiffies(20);
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+ ret = read_poll_timeout(qca8k_read, val, !(val & mask),
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+ 0, QCA8K_BUSY_WAIT_TIMEOUT * USEC_PER_MSEC, false,
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+ priv, reg);
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- /* loop until the busy flag has cleared */
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- do {
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- u32 val = qca8k_read(priv, reg);
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- int busy = val & mask;
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+ /* Check if qca8k_read has failed for a different reason
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+ * before returning -ETIMEDOUT
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+ */
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+ if (ret < 0 && val < 0)
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+ return val;
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- if (!busy)
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- break;
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- cond_resched();
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- } while (!time_after_eq(jiffies, timeout));
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-
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- return time_after_eq(jiffies, timeout);
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+ return ret;
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}
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static void
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--- a/drivers/net/dsa/qca8k.h
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+++ b/drivers/net/dsa/qca8k.h
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@@ -18,6 +18,8 @@
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#define PHY_ID_QCA8337 0x004dd036
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#define QCA8K_ID_QCA8337 0x13
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+#define QCA8K_BUSY_WAIT_TIMEOUT 20
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+
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#define QCA8K_NUM_FDB_RECORDS 2048
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#define QCA8K_CPU_PORT 0
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