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author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-11-16 16:05:01 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-11-16 16:05:01 -0800 |
commit | cf9b0772f2e410645fece13b749bd56505b998b8 (patch) | |
tree | 8b171a2c49d1e9e41d4e43fb91602e664cde8551 /drivers/soc/tegra | |
parent | 527d1470744d338c912f94bc1f4dba08ffdff349 (diff) | |
parent | 339cd0ea082287ea8e2b7e7159a5a33665a2cbe3 (diff) | |
download | linux-cf9b0772f2e410645fece13b749bd56505b998b8.tar.bz2 |
Merge tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver updates from Arnd Bergmann:
"This branch contains platform-related driver updates for ARM and
ARM64, these are the areas that bring the changes:
New drivers:
- driver support for Renesas R-Car V3M (R8A77970)
- power management support for Amlogic GX
- a new driver for the Tegra BPMP thermal sensor
- a new bus driver for Technologic Systems NBUS
Changes for subsystems that prefer to merge through arm-soc:
- the usual updates for reset controller drivers from Philipp Zabel,
with five added drivers for SoCs in the arc, meson, socfpa,
uniphier and mediatek families
- updates to the ARM SCPI and PSCI frameworks, from Sudeep Holla,
Heiner Kallweit and Lorenzo Pieralisi
Changes specific to some ARM-based SoC
- the Freescale/NXP DPAA QBMan drivers from PowerPC can now work on
ARM as well
- several changes for power management on Broadcom SoCs
- various improvements on Qualcomm, Broadcom, Amlogic, Atmel,
Mediatek
- minor Cleanups for Samsung, TI OMAP SoCs"
[ NOTE! This doesn't work without the previous ARM SoC device-tree pull,
because the R8A77970 driver is missing a header file that came from
that pull.
The fact that this got merged afterwards only fixes it at this point,
and bisection of that driver will fail if/when you walk into the
history of that driver. - Linus ]
* tag 'armsoc-drivers' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (96 commits)
soc: amlogic: meson-gx-pwrc-vpu: fix power-off when powered by bootloader
bus: add driver for the Technologic Systems NBUS
memory: omap-gpmc: Remove deprecated gpmc_update_nand_reg()
soc: qcom: remove unused label
soc: amlogic: gx pm domain: add PM and OF dependencies
drivers/firmware: psci_checker: Add missing destroy_timer_on_stack()
dt-bindings: power: add amlogic meson power domain bindings
soc: amlogic: add Meson GX VPU Domains driver
soc: qcom: Remote filesystem memory driver
dt-binding: soc: qcom: Add binding for rmtfs memory
of: reserved_mem: Accessor for acquiring reserved_mem
of/platform: Generalize /reserved-memory handling
soc: mediatek: pwrap: fix fatal compiler error
soc: mediatek: pwrap: fix compiler errors
arm64: mediatek: cleanup message for platform selection
soc: Allow test-building of MediaTek drivers
soc: mediatek: place Kconfig for all SoC drivers under menu
soc: mediatek: pwrap: add support for MT7622 SoC
soc: mediatek: pwrap: add common way for setup CS timing extenstion
soc: mediatek: pwrap: add MediaTek MT6380 as one slave of pwrap
..
Diffstat (limited to 'drivers/soc/tegra')
-rw-r--r-- | drivers/soc/tegra/powergate-bpmp.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/drivers/soc/tegra/powergate-bpmp.c b/drivers/soc/tegra/powergate-bpmp.c index 8fc356039401..82c7e27cd8bb 100644 --- a/drivers/soc/tegra/powergate-bpmp.c +++ b/drivers/soc/tegra/powergate-bpmp.c @@ -42,6 +42,7 @@ static int tegra_bpmp_powergate_set_state(struct tegra_bpmp *bpmp, { struct mrq_pg_request request; struct tegra_bpmp_message msg; + int err; memset(&request, 0, sizeof(request)); request.cmd = CMD_PG_SET_STATE; @@ -53,7 +54,13 @@ static int tegra_bpmp_powergate_set_state(struct tegra_bpmp *bpmp, msg.tx.data = &request; msg.tx.size = sizeof(request); - return tegra_bpmp_transfer(bpmp, &msg); + err = tegra_bpmp_transfer(bpmp, &msg); + if (err < 0) + return err; + else if (msg.rx.ret < 0) + return -EINVAL; + + return 0; } static int tegra_bpmp_powergate_get_state(struct tegra_bpmp *bpmp, @@ -80,6 +87,8 @@ static int tegra_bpmp_powergate_get_state(struct tegra_bpmp *bpmp, err = tegra_bpmp_transfer(bpmp, &msg); if (err < 0) return PG_STATE_OFF; + else if (msg.rx.ret < 0) + return -EINVAL; return response.get_state.state; } @@ -106,6 +115,8 @@ static int tegra_bpmp_powergate_get_max_id(struct tegra_bpmp *bpmp) err = tegra_bpmp_transfer(bpmp, &msg); if (err < 0) return err; + else if (msg.rx.ret < 0) + return -EINVAL; return response.get_max_id.max_id; } @@ -132,7 +143,7 @@ static char *tegra_bpmp_powergate_get_name(struct tegra_bpmp *bpmp, msg.rx.size = sizeof(response); err = tegra_bpmp_transfer(bpmp, &msg); - if (err < 0) + if (err < 0 || msg.rx.ret < 0) return NULL; return kstrdup(response.get_name.name, GFP_KERNEL); |