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| author | Ian Chang <ianchang@ieiworld.com> | 2023-04-11 16:07:24 +0800 |
|---|---|---|
| committer | Daniel Golle <daniel@makrotopia.org> | 2023-04-13 01:07:54 +0100 |
| commit | 877ec78e2354e39a363bf257b7562a36d4b18e4a (patch) | |
| tree | 7bcaefa076d493444b56539338056e07d950c17e /target/linux/mvebu/patches-5.15 | |
| parent | 50f7c5af4a07a8a898a0a60068c6fd4cc40a3273 (diff) | |
| download | upstream-877ec78e2354e39a363bf257b7562a36d4b18e4a.tar.gz upstream-877ec78e2354e39a363bf257b7562a36d4b18e4a.tar.bz2 upstream-877ec78e2354e39a363bf257b7562a36d4b18e4a.zip | |
mvebu: puzzle-mcu: add mcu write retry function
Avoid MCU getting "command reply receive timed out" message when LED
configuration setting trigger function is enabled in heartbeat mode.
Signed-off-by: Ian Chang <ianchang@ieiworld.com>
Diffstat (limited to 'target/linux/mvebu/patches-5.15')
| -rw-r--r-- | target/linux/mvebu/patches-5.15/911-drivers-leds-wt61p803-puzzle-mcu-retry.patch | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/target/linux/mvebu/patches-5.15/911-drivers-leds-wt61p803-puzzle-mcu-retry.patch b/target/linux/mvebu/patches-5.15/911-drivers-leds-wt61p803-puzzle-mcu-retry.patch new file mode 100644 index 0000000000..2f0b1788ff --- /dev/null +++ b/target/linux/mvebu/patches-5.15/911-drivers-leds-wt61p803-puzzle-mcu-retry.patch @@ -0,0 +1,63 @@ +--- a/drivers/mfd/iei-wt61p803-puzzle.c ++++ b/drivers/mfd/iei-wt61p803-puzzle.c +@@ -241,6 +241,7 @@ int iei_wt61p803_puzzle_write_command(st + { + struct device *dev = &mcu->serdev->dev; + int ret; ++ int retries; + + if (size <= 1 || size > IEI_WT61P803_PUZZLE_MAX_COMMAND_LENGTH) + return -EINVAL; +@@ -252,24 +253,36 @@ int iei_wt61p803_puzzle_write_command(st + print_hex_dump_debug("puzzle-mcu tx: ", DUMP_PREFIX_NONE, + 16, 1, cmd, size, false); + ++ retries = 3; + /* Initialize reply struct */ +- reinit_completion(&mcu->reply->received); +- mcu->reply->size = 0; +- usleep_range(2000, 10000); +- serdev_device_write_flush(mcu->serdev); +- ret = serdev_device_write_buf(mcu->serdev, cmd, size); +- if (ret < 0) +- goto exit; +- +- serdev_device_wait_until_sent(mcu->serdev, IEI_WT61P803_PUZZLE_GENERAL_TIMEOUT); +- ret = wait_for_completion_timeout(&mcu->reply->received, +- IEI_WT61P803_PUZZLE_GENERAL_TIMEOUT); +- if (ret == 0) { +- dev_err(dev, "Command reply receive timeout\n"); +- ret = -ETIMEDOUT; +- goto exit; ++ while (retries) { ++ reinit_completion(&mcu->reply->received); ++ mcu->reply->size = 0; ++ usleep_range(2000, 10000); ++ serdev_device_write_flush(mcu->serdev); ++ ret = serdev_device_write_buf(mcu->serdev, cmd, size); ++ if (ret < 0) ++ goto exit; ++ ++ serdev_device_wait_until_sent(mcu->serdev, IEI_WT61P803_PUZZLE_GENERAL_TIMEOUT); ++ ret = wait_for_completion_timeout(&mcu->reply->received, ++ IEI_WT61P803_PUZZLE_GENERAL_TIMEOUT); ++ retries--; ++ if (ret == 0) { ++ if (retries == 0) { ++ dev_err(dev, "Command reply receive timeout\n"); ++ ret = -ETIMEDOUT; ++ goto exit; ++ } ++ } ++ else { ++ if (mcu->reply->data[0] == IEI_WT61P803_PUZZLE_CMD_HEADER_START && ++ mcu->reply->data[1] == IEI_WT61P803_PUZZLE_CMD_RESPONSE_OK && ++ mcu->reply->data[2] == IEI_WT61P803_PUZZLE_CHECKSUM_RESPONSE_OK) { ++ break; ++ } ++ } + } +- + *reply_size = mcu->reply->size; + /* Copy the received data, as it will not be available after a new frame is received */ + memcpy(reply_data, mcu->reply->data, mcu->reply->size); |