linux-toradex.git/drivers/soc/mediatek, branch v5.14

soc: mediatek: pwrap: add pwrap driver for MT8195 SoC

2021-06-03T17:41:26+00:00

MT8195 are highly integrated SoC and use PMIC_MT6359 for
power management. This patch adds pwrap master driver to
access PMIC_MT6359.

Signed-off-by: Henry Chen 
Link: https://lore.kernel.org/r/20210602112050.12338-3-james.lo@mediatek.com
Signed-off-by: Matthias Brugger

soc: mtk-pm-domains: Fix the clock prepared issue

2021-06-02T11:53:31+00:00

In this new power domain driver, when adding one power domain
it will prepare the dependent clocks at the same.
So we only do clk_bulk_enable/disable control during power ON/OFF.
When system suspend, the pm runtime framework will forcely power off
power domains. However, the dependent clocks are disabled but kept
prepared.

In MediaTek clock drivers, PLL would be turned ON when we do
clk_bulk_prepare control.

Clock hierarchy:
PLL -->
       DIV_CK -->
                 CLK_MUX
                 (may be dependent clocks)
                         -->
                             SUBSYS_CG
                             (may be dependent clocks)

It will lead some unexpected clock states during system suspend.
This patch will fix by doing prepare_enable/disable_unprepare on
dependent clocks at the same time while we are going to power on/off
any power domain.

Fixes: 59b644b01cf4 ("soc: mediatek: Add MediaTek SCPSYS power domains")
Signed-off-by: Weiyi Lu 
Signed-off-by: Hsin-Yi Wang 
Reviewed-by: chun-jie.chen 
Reviewed-by: Enric Balletbo i Serra 
Link: https://lore.kernel.org/r/20210601035905.2970384-1-hsinyi@chromium.org
Signed-off-by: Matthias Brugger

soc: mtk-pm-domains: do not register smi node as syscon

2021-06-02T11:53:31+00:00

Mediatek requires mmsys clocks to be unprepared during suspend,
otherwise system has chances to hang.

syscon_regmap_lookup_by_phandle_optional() will attach and prepare the
first clock in smi node, leading to additional prepare to the clock
which is not balanced with the prepare/unprepare pair in resume/suspend
callbacks.

If a power domain node requests an smi node and the smi node's first
clock is an mmsys clock, it will results in an unstable suspend resume.

Fixes: f414854c8843 ("soc: mediatek: pm-domains: Add SMI block as bus protection block")
Signed-off-by: Hsin-Yi Wang 
Reviewed-by: chun-jie.chen 
Reviewed-by: Enric Balletbo i Serra 
Link: https://lore.kernel.org/r/20210601035905.2970384-2-hsinyi@chromium.org
Signed-off-by: Matthias Brugger

soc: mediatek: add missing MODULE_DEVICE_TABLE

2021-05-12T16:29:37+00:00

This patch adds missing MODULE_DEVICE_TABLE definition which generates
correct modalias for automatic loading of this driver when it is built
as an external module.

Reported-by: Hulk Robot 
Signed-off-by: Zou Wei 
Link: https://lore.kernel.org/r/1620705350-104687-1-git-send-email-zou_wei@huawei.com
Signed-off-by: Matthias Brugger

soc: mediatek: mmsys: Add support for MT8167 SoC

2021-04-06T10:57:10+00:00

Add routing table for DSI on MT8167 SoC. The registers are mostly
incompatible with the current defines, so new one for MT8167 are added.

Signed-off-by: Fabien Parent 
Link: https://lore.kernel.org/r/20210405200354.2194930-2-fparent@baylibre.com
Signed-off-by: Matthias Brugger

soc: mediatek: pm-domains: Add a power domain names for mt8167

2021-04-01T09:36:04+00:00

Add the power domains names for the mt8167 SoC.

Fixes: 207f13b419a6 ("soc: mediatek: pm-domains: Add support for mt8167")
Signed-off-by: Enric Balletbo i Serra 
Reviewed-by: Hsin-Yi Wang 
Link: https://lore.kernel.org/r/20210225175000.824661-4-enric.balletbo@collabora.com
Signed-off-by: Matthias Brugger

soc: mediatek: pm-domains: Add a power domain names for mt8192

2021-04-01T09:36:04+00:00

Add the power domains names for the mt8192 SoC.

Fixes: a49d5e7a89d6 ("soc: mediatek: pm-domains: Add support for mt8192")
Signed-off-by: Enric Balletbo i Serra 
Reviewed-by: Hsin-Yi Wang 
Link: https://lore.kernel.org/r/20210225175000.824661-3-enric.balletbo@collabora.com
Signed-off-by: Matthias Brugger

soc: mediatek: pm-domains: Add a power domain names for mt8183

2021-04-01T09:36:04+00:00

Add the power domains names for the mt8183 SoC. This removes the debugfs
errors like the following:

  debugfs: Directory 'power-domain' with parent 'pm_genpd' already present!

Fixes: eb9fa767fbe1 ("soc: mediatek: pm-domains: Add support for mt8183")
Signed-off-by: Enric Balletbo i Serra 
Reviewed-by: Hsin-Yi Wang 
Link: https://lore.kernel.org/r/20210225175000.824661-2-enric.balletbo@collabora.com
Signed-off-by: Matthias Brugger

soc: mediatek: pm-domains: Add a meaningful power domain name

2021-04-01T09:36:04+00:00

Add the power domains names to the power domain struct so we
have meaningful name for every power domain. This also removes the
following debugfs error message.

  [    2.242068] debugfs: Directory 'power-domain' with parent 'pm_genpd' already present!
  [    2.249949] debugfs: Directory 'power-domain' with parent 'pm_genpd' already present!
  [    2.257784] debugfs: Directory 'power-domain' with parent 'pm_genpd' already present!
  ...

Fixes: 59b644b01cf4 ("soc: mediatek: Add MediaTek SCPSYS power domains")
Signed-off-by: Enric Balletbo i Serra 
Reviewed-by: Hsin-Yi Wang 
Link: https://lore.kernel.org/r/20210225175000.824661-1-enric.balletbo@collabora.com
Signed-off-by: Matthias Brugger

soc: mediatek: Make symbol 'mtk_mutex_driver' static

2021-04-01T09:27:54+00:00

The sparse tool complains as follows:

drivers/soc/mediatek/mtk-mutex.c:464:24: warning:
 symbol 'mtk_mutex_driver' was not declared. Should it be static?

This symbol is not used outside of mtk-mutex.c, so this
commit marks it static.

Reported-by: Hulk Robot 
Signed-off-by: Wei Yongjun 
Reviewed-by: Chun-Kuang Hu 
Link: https://lore.kernel.org/r/20210210075656.1096251-1-weiyongjun1@huawei.com
Signed-off-by: Matthias Brugger