forked from Openwrt/openwrt
33 lines
1.2 KiB
Diff
33 lines
1.2 KiB
Diff
From bc5c75e0a5a9400f81a987cc720100ac475fa4d8 Mon Sep 17 00:00:00 2001
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From: Knox Chiou <knoxchiou@chromium.org>
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Date: Wed, 23 Feb 2022 22:35:00 +0000
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Subject: [PATCH] nvmem: qfprom: Increase fuse blow timeout to prevent write
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fail
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sc7180 blow fuses got slightly chances to hit qfprom_reg_write timeout.
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Current timeout is simply too low. Since blowing fuses is a
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very rare operation, so the risk associated with overestimating this
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number is low.
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Increase fuse blow timeout from 1ms to 10ms.
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Reviewed-by: Douglas Anderson <dianders@chromium.org>
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Signed-off-by: Knox Chiou <knoxchiou@chromium.org>
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Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
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Link: https://lore.kernel.org/r/20220223223502.29454-2-srinivas.kandagatla@linaro.org
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Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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---
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drivers/nvmem/qfprom.c | 2 +-
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1 file changed, 1 insertion(+), 1 deletion(-)
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--- a/drivers/nvmem/qfprom.c
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+++ b/drivers/nvmem/qfprom.c
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@@ -22,7 +22,7 @@
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/* Amount of time required to hold charge to blow fuse in micro-seconds */
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#define QFPROM_FUSE_BLOW_POLL_US 100
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-#define QFPROM_FUSE_BLOW_TIMEOUT_US 1000
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+#define QFPROM_FUSE_BLOW_TIMEOUT_US 10000
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#define QFPROM_BLOW_STATUS_OFFSET 0x048
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#define QFPROM_BLOW_STATUS_BUSY 0x1
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