linux/drivers/memory, branch v5.11

Merge tag 'memory-controller-drv-tegra-5.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl into arm/drivers

2020-12-08T23:40:02Z

Memory controller drivers for v5.11 - Tegra SoC, part two Continuation of work on Tegra SoC memory controllers towards adding interconnect support and integration with devfreq. This brings few more patches including one which removes/fixes annoying warning if the DTS patches get applied. This is expected and only informs that new features of Tegra memory controller drivers will not be enabled however the warning itself could look worrying. * tag 'memory-controller-drv-tegra-5.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl: memory: tegra30: Support interconnect framework memory: tegra20: Support hardware versioning and clean up OPP table initialization dt-bindings: memory: tegra20-emc: Document opp-supported-hw property Link: https://lore.kernel.org/r/20201207075758.5501-2-krzk@kernel.org Signed-off-by: Arnd Bergmann

Merge tag 'memory-controller-drv-5.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl into arm/drivers

2020-12-08T23:40:01Z

Memory controller drivers for v5.11, part two 1. Several fixes for Renesas RPC-IF driver. 2. Correct compile testing of TI EMIF SRAM driver. 3. Fix potential NULL pointer in JZ4780 NEMC driver. * tag 'memory-controller-drv-5.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/krzk/linux-mem-ctrl: memory: jz4780_nemc: Fix potential NULL dereference in jz4780_nemc_probe() memory: ti-emif-sram: only build for ARMv7 memory: renesas-rpc-if: Make rpcif_enable/disable_rpm() as static inline memory: renesas-rpc-if: Fix a node reference leak in rpcif_probe() memory: renesas-rpc-if: Fix unbalanced pm_runtime_enable in rpcif_{enable,disable}_rpm memory: renesas-rpc-if: Return correct value to the caller of rpcif_manual_xfer() Link: https://lore.kernel.org/r/20201207075758.5501-1-krzk@kernel.org Signed-off-by: Arnd Bergmann

memory: jz4780_nemc: Fix potential NULL dereference in jz4780_nemc_probe()

2020-12-05T13:57:52Z

platform_get_resource() may fail and return NULL, so we should better check it's return value to avoid a NULL pointer dereference a bit later in the code. This is detected by Coccinelle semantic patch. Fixes: 911a88829725 ("memory: jz4780-nemc: driver for the NEMC on JZ4780 SoCs") Signed-off-by: Zhang Changzhong Acked-by: Paul Cercueil Link: https://lore.kernel.org/r/1607070717-32880-1-git-send-email-zhangchangzhong@huawei.com Signed-off-by: Krzysztof Kozlowski

memory: ti-emif-sram: only build for ARMv7

2020-12-05T13:57:17Z

The driver can be compile-tested on all ARM machines, but causes a failure when built for ARMv7-M: arm-linux-gnueabi-ld: error: drivers/memory/ti-emif-sram-pm.o: conflicting architecture profiles A/M Limit the target machines to configurations that have ARMv7 enabled. Fixes: ea0c0ad6b6eb ("memory: Enable compile testing for most of the drivers") Signed-off-by: Arnd Bergmann Link: https://lore.kernel.org/r/20201203230832.1481767-1-arnd@kernel.org Signed-off-by: Krzysztof Kozlowski

memory: tegra30: Support interconnect framework

2020-12-05T13:54:36Z

Now Internal and External memory controllers are memory interconnection providers. This allows us to use interconnect API for tuning of memory configuration. EMC driver now supports OPPs and DVFS. MC driver now supports tuning of memory arbitration latency, which needs to be done for ISO memory clients, like a Display client for example. Signed-off-by: Dmitry Osipenko Tested-by: Peter Geis Acked-by: Georgi Djakov Acked-by: Thierry Reding Link: https://lore.kernel.org/r/20201203192439.16177-4-digetx@gmail.com Signed-off-by: Krzysztof Kozlowski

memory: tegra20: Support hardware versioning and clean up OPP table initialization

2020-12-05T13:53:59Z

Support hardware versioning, which is now required for Tegra20 EMC OPP. Clean up OPP table initialization by using a error code returned by OPP API for judging about the OPP table presence in a device-tree and remove OPP regulator initialization because we're now going to use power domain instead of a raw regulator. This puts Tegra20 EMC OPP preparation on par with the Tegra30/124 EMC drivers. Signed-off-by: Dmitry Osipenko Acked-by: Thierry Reding Link: https://lore.kernel.org/r/20201203192439.16177-3-digetx@gmail.com Signed-off-by: Krzysztof Kozlowski

memory: renesas-rpc-if: Make rpcif_enable/disable_rpm() as static inline

2020-11-28T11:37:18Z

Define rpcif_enable_rpm() and rpcif_disable_rpm() as static inline in the header instead of exporting them. Suggested-by: Pavel Machek Signed-off-by: Lad Prabhakar Reviewed-by: Pavel Machek (CIP) Link: https://lore.kernel.org/r/20201126191146.8753-5-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Krzysztof Kozlowski

memory: renesas-rpc-if: Fix a node reference leak in rpcif_probe()

2020-11-28T11:34:57Z

Release the node reference by calling of_node_put(flash) in the probe. Fixes: ca7d8b980b67f ("memory: add Renesas RPC-IF driver") Reported-by: Pavel Machek Signed-off-by: Lad Prabhakar Reviewed-by: Sergei Shtylyov Reviewed-by: Geert Uytterhoeven Reviewed-by: Pavel Machek (CIP) Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20201126191146.8753-4-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Krzysztof Kozlowski

memory: renesas-rpc-if: Fix unbalanced pm_runtime_enable in rpcif_{enable,disable}_rpm

2020-11-28T11:33:19Z

rpcif_enable_rpm calls pm_runtime_enable, so rpcif_disable_rpm needs to call pm_runtime_disable and not pm_runtime_put_sync. Fixes: ca7d8b980b67f ("memory: add Renesas RPC-IF driver") Reported-by: Geert Uytterhoeven Signed-off-by: Lad Prabhakar Reviewed-by: Sergei Shtylyov Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20201126191146.8753-3-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Krzysztof Kozlowski

memory: renesas-rpc-if: Return correct value to the caller of rpcif_manual_xfer()

2020-11-28T11:31:35Z

In the error path of rpcif_manual_xfer() the value of ret is overwritten by value returned by reset_control_reset() function and thus returning incorrect value to the caller. This patch makes sure the correct value is returned to the caller of rpcif_manual_xfer() by dropping the overwrite of ret in error path. Also now we ignore the value returned by reset_control_reset() in the error path and instead print a error message when it fails. Fixes: ca7d8b980b67f ("memory: add Renesas RPC-IF driver") Reported-by: Pavel Machek Signed-off-by: Lad Prabhakar Reviewed-by: Sergei Shtylyov Reviewed-by: Geert Uytterhoeven Reviewed-by: Pavel Machek (CIP) Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20201126191146.8753-2-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Krzysztof Kozlowski