kernel/linux.git/drivers/soc/mediatek, branch v4.14.263

soc: mediatek: Check if power domains can be powered on at boot time

2020-12-29T12:46:50+00:00

[ Upstream commit 4007844b05815717f522c7ea9914e24ad0ff6c79 ] In the error case, where a power domain cannot be powered on successfully at boot time (in mtk_register_power_domains), pm_genpd_init would still be called with is_off=false, and the system would later try to disable the power domain again, triggering warnings as disabled clocks are disabled again (and other potential issues). Also print a warning splat in that case, as this should never happen. Fixes: c84e358718a66f7 ("soc: Mediatek: Add SCPSYS power domain driver") Signed-off-by: Nicolas Boichat Link: https://lore.kernel.org/r/20200928113107.v2.1.I5e6f8c262031d0451fe7241b744f4f3111c1ce71@changeid Signed-off-by: Matthias Brugger Signed-off-by: Sasha Levin

soc: mediatek: pwrap: Zero initialize rdata in pwrap_init_cipher

2019-06-15T09:54:55+00:00

[ Upstream commit 89e28da82836530f1ac7a3a32fecc31f22d79b3e ] When building with -Wsometimes-uninitialized, Clang warns: drivers/soc/mediatek/mtk-pmic-wrap.c:1358:6: error: variable 'rdata' is used uninitialized whenever '||' condition is true [-Werror,-Wsometimes-uninitialized] If pwrap_write returns non-zero, pwrap_read will not be called to initialize rdata, meaning that we will use some random uninitialized stack value in our print statement. Zero initialize rdata in case this happens. Link: https://github.com/ClangBuiltLinux/linux/issues/401 Signed-off-by: Nathan Chancellor Reviewed-by: Nick Desaulniers Reviewed-by: Arnd Bergmann Signed-off-by: Matthias Brugger Signed-off-by: Sasha Levin

soc: mediatek: fix the mistaken pointer accessed when subdomains are added

2018-04-24T07:36:28+00:00

commit 73ce2ce129783813e1ebc37d2c757fe5e0fab1ef upstream. Fix the pointer to struct scp_subdomian not being moved forward when each sub-domain is expected to be iteratively added through pm_genpd_add_subdomain call. Cc: stable@vger.kernel.org Fixes: 53fddb1a66dd ("soc: mediatek: reduce code duplication of scpsys_probe across all SoCs") Reported-by: Weiyi Lu Signed-off-by: Sean Wang Signed-off-by: Matthias Brugger Signed-off-by: Greg Kroah-Hartman

soc: mediatek: pwrap: fix compiler errors

2017-12-20T09:10:34+00:00

[ Upstream commit fb2c1934f30577756e55e24e8870b45c78da3bc2 ] When compiling using sparse, we got the following error: drivers/soc/mediatek/mtk-pmic-wrap.c:686:25: error: dubious one-bit signed bitfield Changing the data type to unsigned fixes this. Signed-off-by: Matthias Brugger Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

Merge tag 'v4.13-next-soc' of https://github.com/mbgg/linux-mediatek into next/drivers

2017-08-18T21:27:22+00:00

Pull "arm: mediatek: soc updates for v4.14" from Matthias Brugger: - add mt7623a smp support - scpsys: reduce code duplication - scpsys: add mt7622 support - pmic wrapper: make of_device_ids constant * tag 'v4.13-next-soc' of https://github.com/mbgg/linux-mediatek: soc: mediatek: add SCPSYS power domain driver for MediaTek MT7622 SoC soc: mediatek: add header files required for MT7622 SCPSYS dt-binding soc: mediatek: reduce code duplication of scpsys_probe across all SoCs dt-bindings: soc: update the binding document for SCPSYS on MediaTek MT7622 SoC soc: mtk-pmic-wrap: make of_device_ids const. ARM: mediatek: add MT7623a smp bringup code

soc: Convert to using %pOF instead of full_name

2017-08-16T19:32:36+00:00

Now that we have a custom printf format specifier, convert users of full_name to use %pOF instead. This is preparation to remove storing of the full path string for each node. Signed-off-by: Rob Herring Acked-by: Krzysztof Kozlowski Reviewed-by: Geert Uytterhoeven Acked-by: Matthias Brugger Acked-by: Simon Horman Cc: Scott Wood Cc: Qiang Zhao Cc: Magnus Damm Cc: Kukjin Kim Cc: Javier Martinez Canillas Signed-off-by: Arnd Bergmann

soc: mediatek: add SCPSYS power domain driver for MediaTek MT7622 SoC

2017-08-14T15:28:40+00:00

Add SCPSYS power domain driver for MT7622 SoC having four power domains which are respectively ETHSYS for Ethernet including embedded switch, WBSYS for WIFI and Bluetooth, HIF0SYS for PCI-E and SATA, and HIF1SYS for USB. Those functions could be selectively powered gated when the corresponding function is no longer to use in order to reach more minimal power dissipation. Signed-off-by: Chen Zhong Signed-off-by: Sean Wang Reviewed-by: Ulf Hansson Signed-off-by: Matthias Brugger

soc: mediatek: reduce code duplication of scpsys_probe across all SoCs

2017-08-14T15:28:27+00:00

Reduce code duplication of scpsys_probe_mtXXXX across all SoCs using the more generic scpsys_probe all covering all cases to avoid starting to bloat the driver when more MediaTek SoCs supported are added. Suggested-by: Matthias Brugger Signed-off-by: Sean Wang Reviewed-by: Ulf Hansson Signed-off-by: Matthias Brugger

soc: mtk-pmic-wrap: make of_device_ids const.

2017-08-02T10:38:53+00:00

of_device_ids are not supposed to change at runtime. All functions working with of_device_ids provided by work with const of_device_ids. So mark the non-const structs as const. Signed-off-by: Arvind Yadav Acked-by: Chen Zhong Signed-off-by: Matthias Brugger

soc: mediatek: PMIC wrap: Fix possible NULL derefrence.

2017-05-15T08:47:25+00:00

of_match_device could return NULL, and so can cause a NULL pointer dereference later. Signed-off-by: Shailendra Verma Signed-off-by: Matthias Brugger