kernel/linux.git/drivers/mailbox/Kconfig, branch v6.12.80

mailbox, remoteproc: omap2+: fix compile testing

2024-09-27T14:11:05+00:00

Selecting CONFIG_OMAP2PLUS_MBOX while compile testing causes a build failure: WARNING: unmet direct dependencies detected for OMAP2PLUS_MBOX Depends on [n]: MAILBOX [=y] && (ARCH_OMAP2PLUS || ARCH_K3) Selected by [m]: - TI_K3_M4_REMOTEPROC [=m] && REMOTEPROC [=y] && (ARCH_K3 || COMPILE_TEST [=y]) Using 'select' to force-enable another subsystem is generally a mistake and causes problems such as this one, so change the three drivers that link against this driver to use 'depends on' instead, and ensure the driver itself can be compile tested regardless of the platform. When compile-testing without CONFIG_TI_SCI_PROTOCOL=m, there is a chance for a link failure, so add a careful dependency on that. arm-linux-gnueabi-ld: drivers/remoteproc/ti_k3_m4_remoteproc.o: in function `k3_m4_rproc_probe': ti_k3_m4_remoteproc.c:(.text.k3_m4_rproc_probe+0x76): undefined reference to `devm_ti_sci_get_by_phandle' Fixes: ebcf9008a895 ("remoteproc: k3-m4: Add a remoteproc driver for M4F subsystem") Signed-off-by: Arnd Bergmann Reviewed-by: Mathieu Poirier Reviewed-by: Andrew Davis Reviewed-by: Martyn Welch Signed-off-by: Jassi Brar

mailbox: ARM_MHU_V3 should depend on ARM64

2024-09-23T00:19:17+00:00

The ARM MHUv3 controller is only present on ARM64 SoCs. Hence add a dependency on ARM64, to prevent asking the user about this driver when configuring a kernel for a different architecture than ARM64. Fixes: ca1a8680b134b5e6 ("mailbox: arm_mhuv3: Add driver") Signed-off-by: Geert Uytterhoeven Acked-by: Sudeep Holla Signed-off-by: Jassi Brar

mailbox: qcom-cpucp: fix 64BIT dependency

2024-07-20T02:21:06+00:00

This newly added driver fails compile testing on 32-bit architectures because it relies on 64-bit MMIO register access: drivers/mailbox/qcom-cpucp-mbox.c: In function 'qcom_cpucp_mbox_irq_fn': drivers/mailbox/qcom-cpucp-mbox.c:54:18: error: implicit declaration of function 'readq'; did you mean 'readb'? [-Wimplicit-function-declaration] 54 | status = readq(cpucp->rx_base + APSS_CPUCP_RX_MBOX_STAT); | ^~~~~ | readb drivers/mailbox/qcom-cpucp-mbox.c:65:17: error: implicit declaration of function 'writeq'; did you mean 'writeb'? [-Wimplicit-function-declaration] 65 | writeq(BIT(i), cpucp->rx_base + APSS_CPUCP_RX_MBOX_CLEAR); | ^~~~~~ | writeb Change the Kconfig dependency to disallow that configuration as well. Fixes: 0e2a9a03106c ("mailbox: Add support for QTI CPUCP mailbox controller") Signed-off-by: Arnd Bergmann Reviewed-by: Konrad Dybcio Signed-off-by: Jassi Brar

mailbox: Add support for QTI CPUCP mailbox controller

2024-07-10T18:24:55+00:00

Add support for CPUSS Control Processor (CPUCP) mailbox controller, this driver enables communication between AP and CPUCP by acting as a doorbell between them. Reviewed-by: Dmitry Baryshkov Signed-off-by: Sibi Sankar Reviewed-by: Bjorn Andersson Reviewed-by: Konrad Dybcio Signed-off-by: Jassi Brar

mailbox: arm_mhuv3: Add driver

2024-05-20T03:30:09+00:00

Add support for ARM MHUv3 mailbox controller. Support is limited to the MHUv3 Doorbell extension using only the PBX/MBX combined interrupts. Signed-off-by: Cristian Marussi Signed-off-by: Jassi Brar

mailbox: omap: Remove kernel FIFO message queuing

2024-05-20T03:29:44+00:00

The kernel FIFO queue has a couple issues. The biggest issue is that it causes extra latency in a path that can be used in real-time tasks, such as communication with real-time remote processors. The whole FIFO idea itself looks to be a leftover from before the unified mailbox framework. The current mailbox framework expects mbox_chan_received_data() to be called with data immediately as it arrives. Remove the FIFO and pass the messages to the mailbox framework directly as part of a threaded IRQ handler. Signed-off-by: Andrew Davis Signed-off-by: Jassi Brar

mailbox: apple: Delete driver

2023-11-23T10:10:17+00:00

This driver is now orphaned and superseded by drivers/soc/apple/mailbox.c. Acked-by: Eric Curtin Acked-by: Neal Gompa Acked-by: Alyssa Rosenzweig Signed-off-by: Hector Martin

Merge tag 'mailbox-v6.4' of git://git.linaro.org/landing-teams/working/fujitsu/integration

2023-05-07T17:17:33+00:00

Pull mailbox updates from Jassi Brar: - mailbox api: allow direct registration to a channel and convert omap and pcc to use mbox_bind_client - omap and hi6220 : use of_property_read_bool - test: fix double-free and use spinlock header - rockchip and bcm-pdc: drop of_match_ptr - mpfs: change config symbol - mediatek gce: support MT6795 - qcom apcs: consolidate of_device_id and support IPQ9574 * tag 'mailbox-v6.4' of git://git.linaro.org/landing-teams/working/fujitsu/integration: dt-bindings: mailbox: qcom: add compatible for IPQ9574 SoC mailbox: qcom-apcs-ipc: do not grow the of_device_id dt-bindings: mailbox: qcom,apcs-kpss-global: use fallbacks for few variants dt-bindings: mailbox: mediatek,gce-mailbox: Add support for MT6795 mailbox: mpfs: convert SOC_MICROCHIP_POLARFIRE to ARCH_MICROCHIP_POLARFIRE mailbox: bcm-pdc: drop of_match_ptr for ID table mailbox: rockchip: drop of_match_ptr for ID table mailbox: mailbox-test: Fix potential double-free in mbox_test_message_write() mailbox: mailbox-test: Explicitly include header for spinlock support mailbox: Use of_property_read_bool() for boolean properties mailbox: pcc: Use mbox_bind_client mailbox: omap: Use mbox_bind_client mailbox: Allow direct registration to a channel

mailbox: mpfs: convert SOC_MICROCHIP_POLARFIRE to ARCH_MICROCHIP_POLARFIRE

2023-05-04T05:53:39+00:00

As part of converting RISC-V SOC_FOO symbols to ARCH_FOO to match the use of such symbols on other architectures, convert the Microchip FPGA mailbox driver to use the new symbol. Signed-off-by: Conor Dooley Signed-off-by: Jassi Brar

mailbox: zynq: make modular

2023-04-13T20:13:52+00:00

This driver has a MODULE_LICENSE but is not tristate so cannot be built as a module, unlike all its peers: make it modular to match. Signed-off-by: Nick Alcock Suggested-by: Michal Simek Cc: Luis Chamberlain Cc: linux-modules@vger.kernel.org Cc: linux-kernel@vger.kernel.org Cc: Hitomi Hasegawa Cc: Jassi Brar Cc: Michal Simek Cc: linux-arm-kernel@lists.infradead.org Signed-off-by: Luis Chamberlain