linux/drivers/mailbox
Pekka Pessi f1dd8c1186 mailbox: tegra-hsp: Flush whole channel
commit 60de2d2dc2 upstream.

The txdone can re-fill the mailbox. Keep polling the mailbox during the
flush until all the messages have been delivered.

This fixes an issue with the Tegra Combined UART (TCU) where output can
get truncated under high traffic load.

Signed-off-by: Pekka Pessi <ppessi@nvidia.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Fixes: 91b1b1c3da ("mailbox: tegra-hsp: Add support for shared mailboxes")
Cc: stable@vger.kernel.org
Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2022-04-08 14:22:59 +02:00
..
arm_mhu_db.c mailbox: arm_mhu_db: Remove redundant dev_err call in mhu_db_probe() 2021-04-13 20:07:36 -05:00
arm_mhu.c mailbox: arm_mhu: Remove redundant error printing in mhu_probe() 2021-06-26 11:37:48 -05:00
arm_mhuv2.c mailbox: arm_mhuv2: Skip calling kfree() with invalid pointer 2021-02-22 13:34:27 -06:00
armada-37xx-rwtm-mailbox.c treewide: change my e-mail address, fix my name 2021-04-09 14:54:23 -07:00
bcm-flexrm-mailbox.c mailbox: bcm-flexrm-mailbox: Remove redundant dev_err call in flexrm_mbox_probe() 2021-06-26 11:40:34 -05:00
bcm-pdc-mailbox.c mailbox: bcm-pdc: Remove redundant error printing in pdc_probe() 2021-06-26 11:37:50 -05:00
bcm2835-mailbox.c mailbox: bcm2835: Remove redundant dev_err call in bcm2835_mbox_probe() 2021-06-26 11:40:32 -05:00
hi3660-mailbox.c mailbox: hisilicon: Use the correct HiSilicon copyright 2021-06-26 11:38:02 -05:00
hi6220-mailbox.c mailbox: hisilicon: Use the correct HiSilicon copyright 2021-06-26 11:38:02 -05:00
imx-mailbox.c mailbox: imx: Avoid using val uninitialized in imx_mu_isr() 2021-06-26 12:06:18 -05:00
Kconfig mailbox: qcom-ipcc: Enable loading QCOM_IPCC as a module 2021-08-29 23:50:15 -05:00
mailbox-altera.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 201 2019-05-30 11:29:52 -07:00
mailbox-mpfs.c mailbox: change mailbox-mpfs compatible string 2022-01-27 11:05:05 +01:00
mailbox-sti.c mailbox: sti: quieten kernel-doc warnings 2021-08-29 23:50:12 -05:00
mailbox-test.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 152 2019-05-30 11:26:32 -07:00
mailbox-xgene-slimpro.c mailbox: fix various typos in comments 2021-04-13 20:07:35 -05:00
mailbox.c mailbox: avoid timer start from callback 2020-10-16 19:09:17 -05:00
mailbox.h mailbox: fix various typos in comments 2021-04-13 20:07:35 -05:00
Makefile mbox: add polarfire soc system controller mailbox 2021-06-26 12:06:48 -05:00
mtk-cmdq-mailbox.c mailbox: fix gce_num of mt8192 driver data 2022-01-27 11:04:21 +01:00
omap-mailbox.c mailbox: omap: Add support for K3 AM64x SoCs 2021-02-14 23:23:41 -06:00
pcc.c mailbox: fix various typos in comments 2021-04-13 20:07:35 -05:00
pl320-ipc.c mailbox: fix various typos in comments 2021-04-13 20:07:35 -05:00
platform_mhu.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 285 2019-06-05 17:36:37 +02:00
qcom-apcs-ipc-mailbox.c mailbox: qcom-apcs-ipc: Add compatible for MSM8953 SoC 2021-08-30 00:29:29 -05:00
qcom-ipcc.c mailbox: qcom-ipcc: Enable loading QCOM_IPCC as a module 2021-08-29 23:50:15 -05:00
rockchip-mailbox.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 288 2019-06-05 17:36:37 +02:00
sprd-mailbox.c mailbox: sprd: Add supplementary inbox support 2021-04-13 20:07:36 -05:00
stm32-ipcc.c mailbox: stm32-ipcc: cast void pointers to unsigned long 2020-12-01 19:17:20 -06:00
sun6i-msgbox.c mailbox: sun6i-msgbox: Add a new mailbox driver 2020-03-19 23:00:32 -05:00
tegra-hsp.c mailbox: tegra-hsp: Flush whole channel 2022-04-08 14:22:59 +02:00
ti-msgmgr.c mailbox: fix various typos in comments 2021-04-13 20:07:35 -05:00
zynqmp-ipi-mailbox.c mailbox: zynqmp-ipi: Fix NULL vs IS_ERR() check in zynqmp_ipi_mbox_probe() 2020-05-30 18:08:40 -05:00