diff options
Diffstat (limited to 'target/linux/ipq40xx')
| -rw-r--r-- | target/linux/ipq40xx/patches-4.14/088-0002-i2c-qup-fixed-releasing-dma-without-flush-operation.patch | 44 |
1 files changed, 0 insertions, 44 deletions
diff --git a/target/linux/ipq40xx/patches-4.14/088-0002-i2c-qup-fixed-releasing-dma-without-flush-operation.patch b/target/linux/ipq40xx/patches-4.14/088-0002-i2c-qup-fixed-releasing-dma-without-flush-operation.patch deleted file mode 100644 index 25d0366ec6..0000000000 --- a/target/linux/ipq40xx/patches-4.14/088-0002-i2c-qup-fixed-releasing-dma-without-flush-operation.patch +++ /dev/null @@ -1,44 +0,0 @@ -From 7239872fb3400b21a8f5547257f9f86455867bd6 Mon Sep 17 00:00:00 2001 -From: Abhishek Sahu <absahu@codeaurora.org> -Date: Mon, 12 Mar 2018 18:44:51 +0530 -Subject: [PATCH 02/13] i2c: qup: fixed releasing dma without flush operation - completion -MIME-Version: 1.0 -Content-Type: text/plain; charset=UTF-8 -Content-Transfer-Encoding: 8bit - -The QUP BSLP BAM generates the following error sometimes if the -current I2C DMA transfer fails and the flush operation has been -scheduled - - “bam-dma-engine 7884000.dma: Cannot free busy channel” - -If any I2C error comes during BAM DMA transfer, then the QUP I2C -interrupt will be generated and the flush operation will be -carried out to make I2C consume all scheduled DMA transfer. -Currently, the same completion structure is being used for BAM -transfer which has already completed without reinit. It will make -flush operation wait_for_completion_timeout completed immediately -and will proceed for freeing the DMA resources where the -descriptors are still in process. - -Signed-off-by: Abhishek Sahu <absahu@codeaurora.org> -Acked-by: Sricharan R <sricharan@codeaurora.org> -Reviewed-by: Austin Christ <austinwc@codeaurora.org> -Reviewed-by: Andy Gross <andy.gross@linaro.org> -Signed-off-by: Wolfram Sang <wsa@the-dreams.de> ---- - drivers/i2c/busses/i2c-qup.c | 2 ++ - 1 file changed, 2 insertions(+) - ---- a/drivers/i2c/busses/i2c-qup.c -+++ b/drivers/i2c/busses/i2c-qup.c -@@ -835,6 +835,8 @@ static int qup_i2c_bam_do_xfer(struct qu - } - - if (ret || qup->bus_err || qup->qup_err) { -+ reinit_completion(&qup->xfer); -+ - if (qup_i2c_change_state(qup, QUP_RUN_STATE)) { - dev_err(qup->dev, "change to run state timed out"); - goto desc_err; |