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60de2d2dc2
linux/drivers/mailbox
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Pekka Pessi 60de2d2dc2 mailbox: tegra-hsp: Flush whole channel 
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>
2022-03-12 19:20:48 -06:00
..
apple-mailbox.c mailbox: apple: Bind to generic compatibles 2022-01-11 23:47:32 -06:00
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
bcm2835-mailbox.c mailbox: bcm2835: Make use of the helper function devm_platform_ioremap_resource() 2021-10-16 14:39:48 -05:00
bcm-flexrm-mailbox.c Rework of the MSI interrupt infrastructure: 2022-01-13 09:05:29 -08:00
bcm-pdc-mailbox.c mailbox: bcm-pdc: Remove redundant error printing in pdc_probe() 2021-06-26 11:37:50 -05:00
hi3660-mailbox.c mailbox: hi3660: convert struct comments to kernel-doc notation 2022-01-11 23:47:32 -06:00
hi6220-mailbox.c mailbox: hi6220: Make use of the helper function devm_platform_ioremap_resource() 2021-10-16 14:39:49 -05:00
imx-mailbox.c mailbox: imx: Fix an IS_ERR() vs NULL bug 2022-01-11 23:47:32 -06:00
Kconfig mailbox: apple: Add driver for Apple mailboxes 2021-10-29 22:34:31 -05:00
mailbox-altera.c mailbox: altera: Make use of the helper function devm_platform_ioremap_resource() 2021-10-16 14:39:48 -05:00
mailbox-mpfs.c mailbox: change mailbox-mpfs compatible string 2022-01-11 23:47:33 -06:00
mailbox-sti.c mailbox: sti: Make use of the helper function devm_platform_ioremap_resource() 2021-10-16 14:39:49 -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: xgene-slimpro: Make use of the helper function devm_platform_ioremap_resource() 2021-10-16 14:39:49 -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 mailbox: apple: Add driver for Apple mailboxes 2021-10-29 22:34:31 -05:00
mtk-cmdq-mailbox.c mailbox: mtk: add missing of_node_put before return 2022-01-11 23:47:33 -06:00
omap-mailbox.c mailbox: omap: Make use of the helper function devm_platform_ioremap_resource() 2021-10-16 14:39:49 -05:00
pcc.c mailbox: pcc: Handle all PCC subtypes correctly in pcc_mbox_irq 2022-01-11 23:47:33 -06:00
pl320-ipc.c mailbox: fix various typos in comments 2021-04-13 20:07:35 -05:00
platform_mhu.c mailbox: platform-mhu: Make use of the helper function devm_platform_ioremap_resource() 2021-10-16 14:39:49 -05:00
qcom-apcs-ipc-mailbox.c mailbox: qcom-apcs-ipc: Add QCM2290 APCS IPC support 2021-10-16 14:39:49 -05:00
qcom-ipcc.c mailbox: qcom-ipcc: Support interrupt wake up from suspend 2022-01-11 23:47:33 -06:00
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: Make use of the helper function devm_platform_ioremap_resource() 2021-10-16 14:39:49 -05:00
sun6i-msgbox.c mailbox: sun6i: Make use of the helper function devm_platform_ioremap_resource() 2021-10-16 14:39:49 -05:00
tegra-hsp.c mailbox: tegra-hsp: Flush whole channel 2022-03-12 19:20:48 -06:00
ti-msgmgr.c mailbox: fix various typos in comments 2021-04-13 20:07:35 -05:00
zynqmp-ipi-mailbox.c mailbox: zynq: add missing of_node_put before return 2022-01-11 23:47:32 -06:00