1767 Commits

Author SHA1 Message Date
Gustavo A. R. Silva
661ea25e53 soc: fsl: qe: Replace one-element array and use struct_size() helper
The current codebase makes use of one-element arrays in the following
form:

struct something {
    int length;
    u8 data[1];
};

struct something *instance;

instance = kmalloc(sizeof(*instance) + size, GFP_KERNEL);
instance->length = size;
memcpy(instance->data, source, size);

but the preferred mechanism to declare variable-length types such as
these ones is a flexible array member[1][2], introduced in C99:

struct foo {
        int stuff;
        struct boo array[];
};

By making use of the mechanism above, we will get a compiler warning
in case the flexible array does not occur last in the structure, which
will help us prevent some kind of undefined behavior bugs from being
inadvertently introduced[3] to the codebase from now on. So, replace
the one-element array with a flexible-array member.

Also, make use of the new struct_size() helper to properly calculate the
size of struct qe_firmware.

This issue was found with the help of Coccinelle and, audited and fixed
_manually_.

[1] https://gcc.gnu.org/onlinedocs/gcc/Zero-Length.html
[2] https://github.com/KSPP/linux/issues/21
[3] commit 76497732932f ("cxgb3/l2t: Fix undefined behaviour")

Signed-off-by: Gustavo A. R. Silva <gustavoars@kernel.org>
Reviewed-by: Qiang Zhao <qiang.zhao@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
2020-05-22 16:23:02 -05:00
Jon Hunter
df701a76a6 soc/tegra: pmc: Enable PMIC wake event on Tegra210
The PMIC wake event can be used to bring the system out of suspend based
on certain events happening on the PMIC (such as an RTC alarm).

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-05-22 14:55:54 +02:00
Yash Shah
4a3a373312
riscv: Add support to determine no. of L2 cache way enabled
In order to determine the number of L2 cache ways enabled at runtime,
implement a private attribute ("number_of_ways_enabled"). Reading this
attribute returns the number of enabled L2 cache ways at runtime.

Using riscv_set_cacheinfo_ops() hook a custom function, that returns
this private attribute, to the generic ops structure which is used by
cache_get_priv_group() in cacheinfo framework.

Signed-off-by: Yash Shah <yash.shah@sifive.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-05-20 15:05:10 -07:00
Peng Fan
52102a3ba6 soc: imx: move cpu code to drivers/soc/imx
Move the soc device register code to drivers/soc/imx to align with
i.MX8.

Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2020-05-20 23:03:50 +08:00
Matthias Brugger
32956dda97 clk/soc: mediatek: mt6779: Bind clock driver from platform device
The mmsys driver is now the top level entry point for the multimedia
system (mmsys), we bind the clock driver by creating a platform device.
We also bind the MediaTek DRM driver which is not yet implement and
therefor will errror out for now.

Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Reviewed-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20200518113156.25009-3-matthias.bgg@kernel.org
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2020-05-20 12:49:35 +02:00
Matthias Brugger
cad4e3790a clk/soc: mediatek: mt6797: Bind clock driver from platform device
The mmsys driver is now the top level entry point for the multimedia
system (mmsys), we bind the clock driver by creating a platform device.
We also bind the MediaTek DRM driver which is not yet implement and
therefor will errror out for now.

Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Reviewed-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20200518113156.25009-2-matthias.bgg@kernel.org
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2020-05-20 12:49:35 +02:00
Matthias Brugger
1f9adbc728 clk/soc: mediatek: mt8183: Bind clock driver from platform device
The mmsys driver is now the top level entry point for the multimedia
system (mmsys), we bind the clock driver by creating a platform device.
We also bind the MediaTek DRM driver which is not yet implement and
therefor will errror out for now.

Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Reviewed-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20200518113156.25009-1-matthias.bgg@kernel.org
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2020-05-20 12:49:35 +02:00
Enric Balletbo i Serra
c292b133b5 clk / soc: mediatek: Bind clock and gpu driver for mt2701
Now that the mmsys driver is the top-level entry point for the
multimedia subsystem, we could bind the clock and the gpu driver on
those devices that is expected to work, so the drm driver is
intantiated by the mmsys driver and display, hopefully, working again.

Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Reviewed-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20200401201736.2980433-3-enric.balletbo@collabora.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2020-05-20 12:47:02 +02:00
Enric Balletbo i Serra
9c5a0a3a8f clk / soc: mediatek: Bind clock and gpu driver for mt2712
Now that the mmsys driver is the top-level entry point for the
multimedia subsystem, we could bind the clock and the gpu driver on
those devices that is expected to work, so the drm driver is
intantiated by the mmsys driver and display, hopefully, working again on
those devices.

Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Reviewed-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20200401201736.2980433-2-enric.balletbo@collabora.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2020-05-20 12:47:02 +02:00
Enric Balletbo i Serra
52660e5685 soc: mediatek: Enable mmsys driver by default if Mediatek arch is selected
The mmsys driver supports only MT8173 device for now, but like other system
controllers is an important piece for other Mediatek devices. Actually
it depends on the mt8173 clock specific driver but that dependency is
not real as it can build without the clock driver. Instead of depends on
a specific model, make the driver depends on the generic ARCH_MEDIATEK and
enable by default so other Mediatek devices can start using it without
flood the Kconfig.

Signed-off-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Tested-by: Hsin-Yi Wang <hsinyi@chromium.org>
Link: https://lore.kernel.org/r/20200401201736.2980433-1-enric.balletbo@collabora.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2020-05-20 12:47:02 +02:00
Martin Blumenstingl
53773f2dfd soc: amlogic: meson-ee-pwrc: add support for the Meson GX SoCs
Add support for the Meson GX SoCs to the meson-ee-pwrc driver.

The power domains on the GX SoCs are very similar to G12A. The only
known differences so far are:
- The GX SoCs do not have the HHI_VPU_MEM_PD_REG2 register (for the
  VPU power-domain)
- The GX SoCs have an additional reset line called "dvin"

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://lore.kernel.org/r/20200515204709.1505498-5-martin.blumenstingl@googlemail.com
2020-05-19 16:02:14 -07:00
Martin Blumenstingl
34217df28d soc: amlogic: meson-ee-pwrc: add support for Meson8/Meson8b/Meson8m2
This adds support for the power domains on Meson8/Meson8b/Meson8m2.
Meson8 doesn't use any reset lines while Meson8b and Meson8m2 use the
same set of reset lines (which is different from the newer SoCs).
Add dedicated compatible strings for Meson8, Meson8b and Meson8m2 to
support these differences.

Notable differences between Meson8 and G12A are:
- there is no HHI_VPU_MEM_PD_REG2 on the 32-bit SoCs
- the Meson8b datasheet describes an "audio DSP memory" power domain
  which is used for the hardware audio decoder
- the "amlogic,ao-sysctrl" only includes the power management related
  registers on the 32-bit SoCs, meaning the for example the
  AO_RTI_GEN_PWR_SLEEP0 register is at offset (0x2 << 2) rather than
  (0x3a << 2). As result of this (0x38 << 2) is subtracted from the
  register offsets, which is the start of the power management related
  registers.

Signed-off-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Link: https://lore.kernel.org/r/20200515204709.1505498-4-martin.blumenstingl@googlemail.com
2020-05-19 16:02:14 -07:00
Tero Kristo
98ece19f24 soc: ti: omap-prm: use atomic iopoll instead of sleeping one
The reset handling APIs for omap-prm can be invoked PM runtime which
runs in atomic context. For this to work properly, switch to atomic
iopoll version instead of the current which can sleep. Otherwise,
this throws a "BUG: scheduling while atomic" warning. Issue is seen
rather easily when CONFIG_PREEMPT is enabled.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Acked-by: Santosh Shilimkar <ssantosh@kernel.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
2020-05-19 11:20:53 -07:00
Palmer Dabbelt
8bb6617427
riscv: K210: Add a built-in device tree
The K210's bootloader does not provide a device tree. Give the ability
to providea builtin one with the SOC_KENDRYTE_K210_BUILTIN_DTB option.
If selected, this option result in the definition of a builtin DTB
entry in the k210 sysctl driver.

If defined, the builtin DTB entry points to the default k210.dts device
tree file and is keyed with the vendor ID 0x4B5, the arch ID
0xE59889E6A5A04149 ("Canaan AI" in UTF-8 coded Chinese) and the impl ID
0x4D41495832303030 ("MAIX200"). These values are reported by the SiPEED
MAIXDUINO board, the SiPEED MAIX Go board and the SiPEED Dan Dock board.

[Thanks to Damien for the K210 IDs]
Signed-off-by: Damien Le Moal <damien.lemoal@wdc.com>
Signed-off-by: Palmer Dabbelt <palmerdabbelt@google.com>
2020-05-18 11:38:06 -07:00
Bjorn Andersson
1f7a3eb785 Revert "soc: qcom: rpmh: Allow RPMH driver to be loaded as a module"
Attempting to compile rpmh-rsc.c as a module with TRACING enabled causes
a build error as no _rcuidle function is generated for tracepoints when
CONFIG_MODULE is set.

Attempts has been made, but no resolution has been agreed upon, so lets
revert this commit for now.

This reverts commit 1d3c6f86fd3f8b88c707f56d8c3f94e014b40e83.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-05-17 23:13:00 -07:00
Dennis YC Hsieh
34c4e40726 soc: mediatek: cmdq: return send msg error code
Return error code to client if send message fail,
so that client has chance to error handling.

Fixes: 576f1b4bc802 ("soc: mediatek: Add Mediatek CMDQ helper")
Signed-off-by: Dennis YC Hsieh <dennis-yc.hsieh@mediatek.com>
Reviewed-by: CK Hu <ck.hu@mediatek.com>
Link: https://lore.kernel.org/r/1583664775-19382-6-git-send-email-dennis-yc.hsieh@mediatek.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2020-05-16 19:55:50 +02:00
Douglas Anderson
d2a8cfc6f3 soc: qcom: rpmh-rsc: Remove the pm_lock
It has been postulated that the pm_lock is bad for performance because
a CPU currently running rpmh_flush() could block other CPUs from
coming out of idle.  Similarly CPUs coming out of / going into idle
all need to contend with each other for the spinlock just to update
the variable tracking who's in PM.

Let's optimize this a bit.  Specifically:

- Use a count rather than a bitmask.  This is faster to access and
  also means we can use the atomic_inc_return() function to really
  detect who the last one to enter PM was.
- Accept that it's OK if we race and are doing the flush (because we
  think we're last) while another CPU is coming out of idle.  As long
  as we block that CPU if/when it tries to do an active-only transfer
  we're OK.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20200504104917.v6.5.I295cb72bc5334a2af80313cbe97cb5c9dcb1442c@changeid
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-05-15 11:45:21 -07:00
Douglas Anderson
555701a45f soc: qcom: rpmh-rsc: Simplify locking by eliminating the per-TCS lock
The rpmh-rsc code had both a driver-level lock (sometimes referred to
in comments as drv->lock) and a lock per-TCS.  The idea was supposed
to be that there would be times where you could get by with just
locking a TCS lock and therefor other RPMH users wouldn't be blocked.

The above didn't work out so well.

Looking at tcs_write() the bigger drv->lock was held for most of the
function anyway.  Only the __tcs_buffer_write() and
__tcs_set_trigger() calls were called without holding the drv->lock.
It actually turns out that in tcs_write() we don't need to hold the
drv->lock for those function calls anyway even if the per-TCS lock
isn't there anymore.  From the newly added comments in the code, this
is because:
- We marked "tcs_in_use" under lock.
- Once "tcs_in_use" has been marked nobody else could be writing
  to these registers until the interrupt goes off.
- The interrupt can't go off until we trigger w/ the last line
  of __tcs_set_trigger().
Thus, from a tcs_write() point of view, the per-TCS lock was useless.

Looking at rpmh_rsc_write_ctrl_data(), only the per-TCS lock was held.
It turns out, though, that this function already needs to be called
with the equivalent of the drv->lock held anyway (we either need to
hold drv->lock as we will in a future patch or we need to know no
other CPUs could be running as happens today).  Specifically
rpmh_rsc_write_ctrl_data() might be writing to a TCS that has been
borrowed for writing an active transation but it never checks this.

Let's eliminate this extra overhead and avoid possible AB BA locking
headaches.

Suggested-by: Maulik Shah <mkshah@codeaurora.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20200504104917.v6.4.Ib8dccfdb10bf6b1fb1d600ca1c21d9c0db1ef746@changeid
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-05-15 11:44:58 -07:00
Douglas Anderson
c45def5d80 soc: qcom: rpmh-rsc: We aren't notified of our own failure w/ NOTIFY_BAD
When a PM Notifier returns NOTIFY_BAD it doesn't get called with
CPU_PM_ENTER_FAILED.  It only get called for CPU_PM_ENTER_FAILED if
someone else (further down the notifier chain) returns NOTIFY_BAD.

Handle this case by taking our CPU out of the list of ones that have
entered PM.  Without this it's possible we could detect that the last
CPU went down (and we would flush) even if some CPU was alive.  That's
not good since our flushing routines currently assume they're running
on the last CPU for mutual exclusion.

Fixes: 985427f997b6 ("soc: qcom: rpmh: Invoke rpmh_flush() for dirty caches")
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Maulik Shah <mkshah@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20200504104917.v6.2.I1927d1bca2569a27b2d04986baf285027f0818a2@changeid
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-05-15 11:42:58 -07:00
Douglas Anderson
1143c36656 soc: qcom: rpmh-rsc: Correctly ignore CPU_CLUSTER_PM notifications
Our switch statement doesn't have entries for CPU_CLUSTER_PM_ENTER,
CPU_CLUSTER_PM_ENTER_FAILED, and CPU_CLUSTER_PM_EXIT and doesn't have
a default.  This means that we'll try to do a flush in those cases but
we won't necessarily be the last CPU down.  That's not so ideal since
our (lack of) locking assumes we're on the last CPU.

Luckily this isn't as big a problem as you'd think since (at least on
the SoC I tested) we don't get these notifications except on full
system suspend.  ...and on full system suspend we get them on the last
CPU down.  That means that the worst problem we hit is flushing twice.
Still, it's good to make it correct.

Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Fixes: 985427f997b6 ("soc: qcom: rpmh: Invoke rpmh_flush() for dirty caches")
Reported-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20200504104917.v6.1.Ic7096b3b9b7828cdd41cd5469a6dee5eb6abf549@changeid
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-05-15 11:42:29 -07:00
Wei Yongjun
ff34e17cf9 soc: mediatek: Missing platform_device_unregister() on error in mtk_mmsys_probe()
Add the missing platform_device_unregister() before return
from mtk_mmsys_probe() in the error handling case.

Fixes: 667c769246b0 ("soc / drm: mediatek: Fix mediatek-drm device probing")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Link: https://lore.kernel.org/r/20200506141317.119537-1-weiyongjun1@huawei.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2020-05-15 16:52:08 +02:00
Geert Uytterhoeven
1a6e55ca8f soc: mediatek: mmsys: Drop <linux/clk-provider.h>
After the split, the mt8173 MMSYS driver is no longer a clock provider,
and thus does not need to include <linux/clk-provider.h>.

Fixes: 13032709e2328553 ("clk / soc: mediatek: Move mt8173 MMSYS to platform driver")
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lore.kernel.org/r/20200506120204.31422-1-geert+renesas@glider.be
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
2020-05-14 12:35:29 +02:00
Douglas Anderson
91160150ab soc: qcom: rpmh-rsc: Timeout after 1 second in write_tcs_reg_sync()
If our data still isn't there after 1 second, shout and give up.

Reported-by: Joe Perches <joe@perches.com>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20200415095953.v3.2.I8550512081c89ec7a545018a7d2d9418a27c1a7a@changeid
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-05-12 10:36:23 -07:00
Douglas Anderson
faa0c1f106 soc: qcom: rpmh-rsc: Factor "tcs_reg_addr" and "tcs_cmd_addr" calculation
We can make some of the register access functions more readable by
factoring out the calculations a little bit.

Suggested-by: Joe Perches <joe@perches.com>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20200415095953.v3.1.Ic70288f256ff0be65cac6a600367212dfe39f6c9@changeid
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-05-12 10:36:10 -07:00
Vincent Knecht
8f09210d89 soc: qcom: socinfo: add msm8936/39 and apq8036/39 soc ids
This patch adds missing SoC IDs for MSM8936/39 and
their APQ variants.

Signed-off-by: Vincent Knecht <vincent.knecht@mailoo.org>
Signed-off-by: Konrad Dybcio <konradybcio@gmail.com>
Link: https://lore.kernel.org/r/20200511212733.214464-1-konradybcio@gmail.com
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-05-11 17:32:07 -07:00
Bjorn Andersson
ce187859ce soc: qcom: aoss: Add SM8250 compatible
Add SM8250 compatible to the qcom_aoss binding and driver.

Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Link: https://lore.kernel.org/r/20200427054202.2822144-1-bjorn.andersson@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-05-11 17:17:23 -07:00
Ioana Ciornei
7596ac9d19 soc: fsl: dpio: properly compute the consumer index
Mask the consumer index before using it. Without this, we would be
writing frame descriptors beyond the ring size supported by the QBMAN
block.

Fixes: 3b2abda7d28c ("soc: fsl: dpio: Replace QMAN array mode with ring mode enqueue")
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Acked-by: Li Yang <leoyang.li@nxp.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2020-05-07 17:35:24 -07:00
Jon Hunter
09701895aa soc/tegra: pmc: Enable PMIC wake event on Tegra194
The PMIC wake event can be used to bring the system out of suspend based
on certain events happening on the PMIC (such as an RTC alarm).

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-05-07 21:23:39 +02:00
Corentin Labbe
5098e2b95e soc/tegra: pmc: Select GENERIC_PINCONF
I have hit the following build error:
armv7a-hardfloat-linux-gnueabi-ld: drivers/soc/tegra/pmc.o: in function `pinconf_generic_dt_node_to_map_pin':
pmc.c:(.text+0x500): undefined reference to `pinconf_generic_dt_node_to_map'
armv7a-hardfloat-linux-gnueabi-ld: drivers/soc/tegra/pmc.o:(.rodata+0x1f88): undefined reference to `pinconf_generic_dt_free_map'

So SOC_TEGRA_PMC should select GENERIC_PINCONF.

Fixes: 4a37f11c8f57 ("soc/tegra: pmc: Implement pad configuration via pinctrl")
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Corentin Labbe <clabbe@baylibre.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-05-07 21:23:00 +02:00
Bjorn Andersson
93bc3feee8 rpmsg: glink: Integrate glink_ssr in qcom_glink
In all but the very special case of a system with _only_ glink_rpm,
GLINK is dependent on glink_ssr, so move it to rpmsg and combine it with
qcom_glink_native in the new qcom_glink kernel module.

Acked-by: Chris Lew <clew@codeaurora.org>
Acked-by: Rishabh Bhatnagar <rishabhb@codeaurora.org>
Link: https://lore.kernel.org/r/20200423003736.2027371-4-bjorn.andersson@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-05-07 11:04:38 -07:00
Bjorn Andersson
5d1f2e3c80 soc: qcom: glink_ssr: Internalize ssr_notifiers
Rather than carrying a special purpose blocking notifier for glink_ssr
in remoteproc's qcom_common.c, move it into glink_ssr so allow wider
reuse of the common one.

The rpmsg glink header file is used in preparation for the next patch.

Acked-by: Chris Lew <clew@codeaurora.org>
Acked-by: Rishabh Bhatnagar <rishabhb@codeaurora.org>
Link: https://lore.kernel.org/r/20200423003736.2027371-3-bjorn.andersson@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-05-07 11:04:18 -07:00
Lad Prabhakar
cdc8abe763 soc: renesas: Add Renesas R8A7742 config option
Add configuration option for the RZ/G1H (R8A77420) SoC.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Marian-Cristian Rotariu <marian-cristian.rotariu.rb@bp.renesas.com>
Link: https://lore.kernel.org/r/1588197415-13747-2-git-send-email-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2020-05-04 14:27:20 +02:00
Lad Prabhakar
2f71832755 soc: renesas: rcar-rst: Add support for RZ/G1H
Add support for RZ/G1H (R8A7742) to the R-Car RST driver.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Marian-Cristian Rotariu <marian-cristian.rotariu.rb@bp.renesas.com>
Link: https://lore.kernel.org/r/1587678050-23468-6-git-send-email-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2020-04-30 10:01:39 +02:00
Lad Prabhakar
5b9fa9cbe6 soc: renesas: rcar-sysc: Add R8A7742 support
Add support for RZ/G1H (R8A7742) SoC power areas to the R-Car SYSC driver.

Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Marian-Cristian Rotariu <marian-cristian.rotariu.rb@bp.renesas.com>
Link: https://lore.kernel.org/r/1587678050-23468-4-git-send-email-prabhakar.mahadev-lad.rj@bp.renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
2020-04-30 10:01:39 +02:00
Rajan Vaja
cbbbda71fe firmware: xilinx: Remove eemi ops for set_requirement
Use direct function call instead of using eemi ops for
set_requirement.

Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Signed-off-by: Jolly Shah <jolly.shah@xilinx.com>
Link: https://lore.kernel.org/r/1587761887-4279-19-git-send-email-jolly.shah@xilinx.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-28 15:45:09 +02:00
Rajan Vaja
07fb1a4619 firmware: xilinx: Remove eemi ops for release_node
Use direct function call instead of using eemi ops for release_node.

Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Signed-off-by: Jolly Shah <jolly.shah@xilinx.com>
Link: https://lore.kernel.org/r/1587761887-4279-18-git-send-email-jolly.shah@xilinx.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-28 15:45:09 +02:00
Rajan Vaja
bf8b27ed23 firmware: xilinx: Remove eemi ops for request_node
Use direct function call instead of using eemi ops for request_node.

Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Signed-off-by: Jolly Shah <jolly.shah@xilinx.com>
Link: https://lore.kernel.org/r/1587761887-4279-17-git-send-email-jolly.shah@xilinx.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-28 15:45:09 +02:00
Rajan Vaja
951d0a97e4 firmware: xilinx: Remove eemi ops for set_suspend_mode
Use direct function call instead of eemi ops for set_suspend_mode.

Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Signed-off-by: Jolly Shah <jolly.shah@xilinx.com>
Link: https://lore.kernel.org/r/1587761887-4279-16-git-send-email-jolly.shah@xilinx.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-28 15:45:08 +02:00
Rajan Vaja
9474da950d firmware: xilinx: Remove eemi ops for init_finalize
Use direct function call instead of eemi ops for init_finalize.

Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Signed-off-by: Jolly Shah <jolly.shah@xilinx.com>
Link: https://lore.kernel.org/r/1587761887-4279-15-git-send-email-jolly.shah@xilinx.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-28 15:45:08 +02:00
Rajan Vaja
b9b3a8be28 firmware: xilinx: Remove eemi ops for get_api_version
Use direct function calls instead of using eemi ops. So remove
eemi ops for get_api_version and use direct function call.

Signed-off-by: Rajan Vaja <rajan.vaja@xilinx.com>
Signed-off-by: Jolly Shah <jolly.shah@xilinx.com>
Link: https://lore.kernel.org/r/1587761887-4279-2-git-send-email-jolly.shah@xilinx.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-28 15:38:38 +02:00
Jon Hunter
37558ac85c soc/tegra: fuse: Update the SoC revision attribute to display a name
Currently the SoC revision attribute for Tegra devices displays the
value of the enum associated with a particular revision. This is not
very useful because to obtain the actual revision you need to
use the tegra_revision enumeration to translate the value.

It is more meaningful to display a name for the revision, such as
'A01', than the enumarated value and therefore, update the revision
attribute to display a name. This change does alter the ABI, which
is unfortunate, but this is more meaningful and maintable.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-04-22 00:08:05 +02:00
Jon Hunter
d08a4095ab soc/tegra: fuse: Trivial clean-up of tegra_init_revision()
Clean-up the tegra_init_revision() function by removing the 'rev'
variable which is not needed and use the newly added helper function
tegra_get_minor_rev() to get the minor revision.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-04-22 00:07:27 +02:00
Jon Hunter
379ac9eb1f soc/tegra: fuse: Add custom SoC attributes
Add a custom SoC attribute for Tegra to expose the HIDREV register
fields to userspace via the sysfs. This register provides additional
details about the type of device (eg, silicon, FPGA, etc) as well as
revision. Exposing this information is useful for identifying the
exact device revision and device type.

For Tegra devices up until Tegra186, the majorrev and minorrev fields of
the HIDREV register are used to determine the device revision and device
type. For Tegra194, the majorrev and minorrev fields only determine the
revision. Starting with Tegra194, there is an additional field,
pre_si_platform (which occupies bits 20-23), that now determines device
type. Therefore, for all Tegra devices, add a custom SoC attribute for
the majorrev and minorrev fields and for Tegra194 add an additional
attribute for the pre_si_platform field.

Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
2020-04-22 00:07:23 +02:00
Thierry Reding
c78cf9956f soc/tegra: pmc: Enable PMIC wake event on Tegra186
The PMIC wake event can be used to bring the system out of suspend based
on certain events happening on the PMIC (such as an RTC alarm).

Signed-off-by: Thierry Reding <treding@nvidia.com>
Acked-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
2020-04-22 00:04:19 +02:00
Arnd Bergmann
e980121346 arm64: soc: ZynqMP SoC fixes for v5.7
- Fix firmware driver dependency
 - Fix one spare warning in firmware driver
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Merge tag 'zynqmp-soc-for-v5.7-rc3' of https://github.com/Xilinx/linux-xlnx into arm/fixes

arm64: soc: ZynqMP SoC fixes for v5.7

- Fix firmware driver dependency
- Fix one spare warning in firmware driver

* tag 'zynqmp-soc-for-v5.7-rc3' of https://github.com/Xilinx/linux-xlnx:
  firmware: xilinx: make firmware_debugfs_root static
  drivers: soc: xilinx: fix firmware driver Kconfig dependency

Link: https://lore.kernel.org/r/4c6daeb0-bc61-8bdb-6ed6-5f58cd915326@monstr.eu
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2020-04-21 14:21:20 +02:00
Sibi Sankar
02d8ecc18b soc: qcom: pdr: Remove impossible error condition
The patch fbe639b44a82: "soc: qcom: Introduce Protection Domain
Restart helpers" leads to the following static checker warning:

drivers/soc/qcom/pdr_interface.c:158 pdr_register_listener()
'(resp.curr_state < (-((~0 >> 1)) - 1)) => (s32min-s32max < s32min)'
These are casted to int so they can't be outside of int range.

Fixes: fbe639b44a82 ("soc: qcom: Introduce Protection Domain Restart helpers")
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
Link: https://lore.kernel.org/r/20200415062955.21439-1-sibis@codeaurora.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-04-20 23:57:58 -07:00
Douglas Anderson
35bb4b22f6 soc: qcom: rpmh: Dirt can only make you dirtier, not cleaner
Adding an item into the cache should never be able to make the cache
cleaner.  Use "|=" rather than "=" to update the dirty flag.

Reviewed-by: Matthias Kaehlcke <mka@chromium.org>
Reviewed-by: Maulik Shah <mkshah@codeaurora.org> Thanks, Maulik
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Fixes: bb7000677a1b ("soc: qcom: rpmh: Update dirty flag only when data changes")
Reported-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://lore.kernel.org/r/20200417141531.1.Ia4b74158497213eabad7c3d474c50bfccb3f342e@changeid
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-04-20 23:54:15 -07:00
Bjorn Andersson
64016bb88e soc: qcom: rpmhpd: Add SM8250 power domains
Tested-by: Vinod Koul <vkoul@kernel.org>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200415062154.741179-2-bjorn.andersson@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-04-20 23:31:48 -07:00
Stephen Boyd
704887278b soc: qcom: cmd-db: Properly endian swap the slv_id for debugfs
Read the slv_id properly by making sure the 16-bit number is endian
swapped from little endian to CPU native before we read it to figure out
what to print for the human readable name. Otherwise we may just show
that all the elements in the cmd-db are "Unknown" which isn't right.

Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Reported-by: kbuild test robot <lkp@intel.com>
Cc: Lina Iyer <ilina@codeaurora.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20200417000645.234693-1-swboyd@chromium.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-04-19 23:06:29 -07:00
Stephen Boyd
3adaf26e7b soc: qcom: cmd-db: Use 5 digits for printing address
The top few bits aren't relevant to pad out because they're always zero.
Let's just print 5 digits instead of 8 so that it's a little shorter and
more readable.

Reviewed-by: Lina Iyer <ilina@codeaurora.org>
Suggested-by: Lina Iyer <ilina@codeaurora.org>
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
Link: https://lore.kernel.org/r/20200415192916.78339-1-swboyd@chromium.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>
2020-04-19 23:06:29 -07:00