diff options
Diffstat (limited to 'target/linux/generic/backport-5.10/808-v5.18-0008-nvmem-qfprom-Increase-fuse-blow-timeout-to-prevent-w.patch')
| -rw-r--r-- | target/linux/generic/backport-5.10/808-v5.18-0008-nvmem-qfprom-Increase-fuse-blow-timeout-to-prevent-w.patch | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/target/linux/generic/backport-5.10/808-v5.18-0008-nvmem-qfprom-Increase-fuse-blow-timeout-to-prevent-w.patch b/target/linux/generic/backport-5.10/808-v5.18-0008-nvmem-qfprom-Increase-fuse-blow-timeout-to-prevent-w.patch new file mode 100644 index 0000000000..74bd4a7eb6 --- /dev/null +++ b/target/linux/generic/backport-5.10/808-v5.18-0008-nvmem-qfprom-Increase-fuse-blow-timeout-to-prevent-w.patch @@ -0,0 +1,32 @@ +From bc5c75e0a5a9400f81a987cc720100ac475fa4d8 Mon Sep 17 00:00:00 2001 +From: Knox Chiou <knoxchiou@chromium.org> +Date: Wed, 23 Feb 2022 22:35:00 +0000 +Subject: [PATCH] nvmem: qfprom: Increase fuse blow timeout to prevent write + fail + +sc7180 blow fuses got slightly chances to hit qfprom_reg_write timeout. +Current timeout is simply too low. Since blowing fuses is a +very rare operation, so the risk associated with overestimating this +number is low. +Increase fuse blow timeout from 1ms to 10ms. + +Reviewed-by: Douglas Anderson <dianders@chromium.org> +Signed-off-by: Knox Chiou <knoxchiou@chromium.org> +Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org> +Link: https://lore.kernel.org/r/20220223223502.29454-2-srinivas.kandagatla@linaro.org +Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> +--- + drivers/nvmem/qfprom.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +--- a/drivers/nvmem/qfprom.c ++++ b/drivers/nvmem/qfprom.c +@@ -22,7 +22,7 @@ + + /* Amount of time required to hold charge to blow fuse in micro-seconds */ + #define QFPROM_FUSE_BLOW_POLL_US 100 +-#define QFPROM_FUSE_BLOW_TIMEOUT_US 1000 ++#define QFPROM_FUSE_BLOW_TIMEOUT_US 10000 + + #define QFPROM_BLOW_STATUS_OFFSET 0x048 + #define QFPROM_BLOW_STATUS_BUSY 0x1 |