Eric Lee / smarc-fsl-linux-kernel

13 Oct, 2020

1 commit

558e4c36e maiblox: mediatek: Fix handling of platform_get_irq() error ... Browse Code »

platform_get_irq() returns -ERRNO on error. In such case casting to u32
and comparing to 0 would pass the check.

Fixes: 623a6143a845 ("mailbox: mediatek: Add Mediatek CMDQ driver")
Signed-off-by: Krzysztof Kozlowski
Signed-off-by: Jassi Brar

Krzysztof Kozlowski
2020-10-13 10:10:34 +0800

04 Aug, 2020

3 commits

884996986 mailbox: mediatek: cmdq: clear task in channel before shutdown ... Browse Code »

Do success callback in channel when shutdown. For those task not finish,
callback with error code thus client has chance to cleanup or reset.

Signed-off-by: Dennis YC Hsieh
Reviewed-by: CK Hu
Reviewed-by: Bibby Hsieh
Signed-off-by: Jassi Brar

Dennis YC Hsieh
2020-08-04 12:56:38 +0800
bb2b06e08 mailbox: cmdq: support mt6779 gce platform definition ... Browse Code »

Add gce v4 hardware support with different thread number and shift.

Signed-off-by: Dennis YC Hsieh
Reviewed-by: CK Hu
Reviewed-by: Matthias Brugger
Reviewed-by: Bibby Hsieh
Signed-off-by: Jassi Brar

Dennis YC Hsieh
2020-08-04 12:56:38 +0800
0858fde49 mailbox: cmdq: variablize address shift in platform ... Browse Code »

Some gce hardware shift pc and end address in register to support
large dram addressing.
Implement gce address shift when write or read pc and end register.
And add shift bit in platform definition.

Signed-off-by: Dennis YC Hsieh
Signed-off-by: Jassi Brar

Dennis YC Hsieh
2020-08-04 12:56:38 +0800

20 Mar, 2020

2 commits

c9ea564f3 mailbox: mediatek: remove implementation related to atomic_exec ... Browse Code »

After implement flush, client can flush the executing
command buffer or abort the still waiting for event
command buffer, so controller do not need to implement
atomic_exe feature. remove it.

Signed-off-by: Bibby Hsieh
Reviewed-by: CK Hu
Signed-off-by: Jassi Brar

Bibby Hsieh
2020-03-20 12:00:32 +0800
b0524f7c9 mailbox: mediatek: implement flush function ... Browse Code »

For client driver which need to reorganize the command buffer, it could
use this function to flush the send command buffer.
If the channel doesn't be started (usually in waiting for event), this
function will abort it directly.

Signed-off-by: Bibby Hsieh
Reviewed-by: CK Hu
Signed-off-by: Jassi Brar

Bibby Hsieh
2020-03-20 12:00:32 +0800

17 Sep, 2019

3 commits

6058f1187 mailbox: mediatek: cmdq: clear the event in cmdq initial flow ... Browse Code »

GCE hardware stored event information in own internal sysram,
if the initial value in those sysram is not zero value
it will cause a situation that gce can wait the event immediately
after client ask gce to wait event but not really trigger the
corresponding hardware.

In order to make sure that the wait event function is
exactly correct, we need to clear the sysram value in
cmdq initial flow.

Fixes: 623a6143a845 ("mailbox: mediatek: Add Mediatek CMDQ driver")

Signed-off-by: Bibby Hsieh
Reviewed-by: CK Hu
Reviewed-by: Matthias Brugger
Signed-off-by: Jassi Brar

Bibby Hsieh
2019-09-17 13:40:05 +0800
286358c44 mailbox: mediatek: cmdq: support mt8183 gce function ... Browse Code »

add mt8183 compatible name for supporting gce function

Signed-off-by: Bibby Hsieh
Reviewed-by: CK Hu
Signed-off-by: Jassi Brar

Bibby Hsieh
2019-09-17 13:40:05 +0800
2c49e4e84 mailbox: mediatek: cmdq: move the CMDQ_IRQ_MASK into cmdq driver data ... Browse Code »

The interrupt mask and thread number has positive correlation,
so we move the CMDQ_IRQ_MASK into cmdq driver data and calculate
it by thread number.

Signed-off-by: Bibby Hsieh
Reviewed-by: CK Hu
Reviewed-by: Matthias Brugger
Signed-off-by: Jassi Brar

Bibby Hsieh
2019-09-17 13:40:05 +0800

16 May, 2019

1 commit

62e59c4e6 clk: Remove io.h from clk-provider.h ... Browse Code »

Now that we've gotten rid of clk_readl() we can remove io.h from the
clk-provider header and push out the io.h include to any code that isn't
already including the io.h header but using things like readl/writel,
etc.

Found with this grep:

git grep -l clk-provider.h | grep '.c$' | xargs git grep -L 'linux/io.h' | \
xargs git grep -l \
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I also reordered a couple includes when they weren't alphabetical and
removed clk.h from kona, replacing it with clk-provider.h because
that driver doesn't use clk consumer APIs.

Acked-by: Geert Uytterhoeven
Cc: Chen-Yu Tsai
Acked-by: Maxime Ripard
Acked-by: Tero Kristo
Acked-by: Sekhar Nori
Cc: Krzysztof Kozlowski
Acked-by: Mark Brown
Cc: Chris Zankel
Acked-by: Max Filippov
Acked-by: John Crispin
Acked-by: Heiko Stuebner
Signed-off-by: Stephen Boyd

Stephen Boyd
2019-05-16 04:21:37 +0800

22 Dec, 2018

2 commits

ec1c674f0 mailbox: mtk-cmdq: Remove needless devm_kfree() calls ... Browse Code »

Memory allocated through device-managed functions doesn't need to be
explicitly freed, so these calls can be removed.

Signed-off-by: Thierry Reding
Signed-off-by: Jassi Brar

Thierry Reding
2018-12-22 06:49:25 +0800
8aed57195 mailbox: mtk-cmdq: Use device-managed registration API ... Browse Code »

Get rid of some boilerplate driver removal code by using the newly added
device-managed registration API.

Signed-off-by: Thierry Reding
Signed-off-by: Jassi Brar

Thierry Reding
2018-12-22 06:49:25 +0800

29 Sep, 2018

1 commit

9f0a0a381 mailbox: mediatek: Add check for possible failure of kzalloc ... Browse Code »

The patch 623a6143a845("mailbox: mediatek: Add Mediatek CMDQ driver")
introduce the following static checker warning:
drivers/mailbox/mtk-cmdq-mailbox.c:366 cmdq_mbox_send_data()
error: potential null dereference 'task'. (kzalloc returns null)

Fixes: 623a6143a845 ("mailbox: mediatek: Add Mediatek CMDQ driver")
Reported-by: Dan Carpenter
Signed-off-by: Houlong Wei
Reviewed-by: Philipp Zabel
Signed-off-by: Jassi Brar

Houlong Wei
2018-09-29 15:12:39 +0800

15 Aug, 2018

1 commit

c5f45fbb4 mailbox: add MODULE_LICENSE() for mtk-cmdq-mailbox.c ... Browse Code »

Fix missing MODULE_LICENSE() in mtk-cmdq-mailbox.c:

WARNING: modpost: missing MODULE_LICENSE() in drivers/mailbox/mtk-cmdq-mailbox.o

Fixes: 623a6143a845 ("mailbox: mediatek: Add Mediatek CMDQ driver")
Signed-off-by: Randy Dunlap
Cc:
Cc: CK Hu
Cc: Houlong Wei
Signed-off-by: Jassi Brar

Randy Dunlap
2018-08-15 12:13:37 +0800

03 Aug, 2018

1 commit

623a6143a mailbox: mediatek: Add Mediatek CMDQ driver ... Browse Code »

This patch is first version of Mediatek Command Queue(CMDQ) driver. The
CMDQ is used to help write registers with critical time limitation,
such as updating display configuration during the vblank. It controls
Global Command Engine (GCE) hardware to achieve this requirement.
Currently, CMDQ only supports display related hardwares, but we expect
it can be extended to other hardwares for future requirements.

Signed-off-by: Houlong Wei
Signed-off-by: HS Liao
Signed-off-by: CK Hu
Signed-off-by: Jassi Brar

Houlong Wei
2018-08-03 22:22:14 +0800