linux/drivers/mailbox, branch v6.13

Merge tag 'tty-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty

2024-11-30T17:03:16Z

Pull tty / serial driver updates from Greg KH: "Here is a small set of tty and serial driver updates for 6.13-rc1. Nothing major at all this time, only some small changes: - few device tree binding updates - 8250_exar serial driver updates - imx serial driver updates - sprd_serial driver updates - other tiny serial driver updates, full details in the shortlog All of these have been in linux-next for a while with one reported issue, but that commit has now been reverted" * tag 'tty-6.13-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (37 commits) Revert "serial: sh-sci: Clean sci_ports[0] after at earlycon exit" serial: amba-pl011: fix build regression dt-bindings: serial: Add a new compatible string for ums9632 serial: sprd: Add support for sc9632 tty/serial/altera_uart: unwrap error log string tty/serial/altera_jtaguart: unwrap error log string serial: amba-pl011: Fix RX stall when DMA is used tty: ldsic: fix tty_ldisc_autoload sysctl's proc_handler serial: 8250_fintek: Add support for F81216E serial: sh-sci: Clean sci_ports[0] after at earlycon exit tty: atmel_serial: Fix typo retreives to retrieves tty: atmel_serial: Use devm_platform_ioremap_resource() serial: 8250: omap: Move pm_runtime_get_sync tty: serial: samsung: Add Exynos8895 compatible dt-bindings: serial: samsung: Add samsung,exynos8895-uart compatible serial: 8250_dw: Add Sophgo SG2044 quirk dt-bindings: serial: snps-dw-apb-uart: Add Sophgo SG2044 uarts dt-bindings: serial: snps,dw-apb-uart: merge duplicate compatible entry. altera_jtaguart: Use dev_err() to report error attaching IRQ altera_uart: Use dev_err() to report error attaching IRQ handler ...

mailbox: pcc: Check before sending MCTP PCC response ACK

2024-11-24T19:20:40Z

Type 4 PCC channels have an option to send back a response to the platform when they are done processing the request. The flag to indicate whether or not to respond is inside the message body, and thus is not available to the pcc mailbox. If the flag is not set, still set command completion bit after processing message. In order to read the flag, this patch maps the shared buffer to virtual memory. To avoid duplication of mapping the shared buffer is then made available to be used by the driver that uses the mailbox. Signed-off-by: Adam Young Cc: Sudeep Holla Signed-off-by: Jassi Brar

mailbox: Switch back to struct platform_driver::remove()

2024-11-24T19:11:01Z

After commit 0edb555a65d1 ("platform: Make platform_driver::remove() return void") .remove() is (again) the right callback to implement for platform drivers. Convert all platform drivers below drivers/mailbox to use .remove(), with the eventual goal to drop struct platform_driver::remove_new(). As .remove() and .remove_new() have the same prototypes, conversion is done by just changing the structure member name in the driver initializer. Make a few indentions consistent while touching these struct initializers. Signed-off-by: Uwe Kleine-König Reviewed-by: AngeloGioacchino Del Regno Acked-by: Chen-Yu Tsai Signed-off-by: Jassi Brar

mailbox: imx: Modify the incorrect format specifier

2024-11-24T19:09:40Z

Replace %i with %u in snprintf() because it is "unsigned int". Signed-off-by: zhang jiao Reviewed-by: Frank Li Signed-off-by: Jassi Brar

mailbox: arm_mhuv2: clean up loop in get_irq_chan_comb()

2024-11-24T19:08:53Z

Both the inner and outer loops in this code use the "i" iterator. The inner loop should really use a different iterator. It doesn't affect things in practice because the data comes from the device tree. The "protocol" and "windows" variables are going to be zero. That means we're always going to hit the "return &chans[channel];" statement and we're not going to want to iterate through the outer loop again. Still it's worth fixing this for future use cases. Fixes: 5a6338cce9f4 ("mailbox: arm_mhuv2: Add driver") Signed-off-by: Dan Carpenter Acked-by: Viresh Kumar Signed-off-by: Jassi Brar

mailbox: zynqmp: setup IPI for each valid child node

2024-11-24T19:07:50Z

As per zynqmp-ipi bindings, zynqmp IPI node can have multiple child nodes. Current IPI setup function is set only for first child node. If IPI node has multiple child nodes in the device-tree, then IPI setup fails for child nodes other than first child node. In such case kernel will crash. Fix this crash by registering IPI setup function for each available child node. Signed-off-by: Tanmay Shah Signed-off-by: Jassi Brar

mailbox: Introduce support for T-head TH1520 Mailbox driver

2024-11-24T19:06:37Z

This driver was tested using the drm/imagination GPU driver. It was able to successfully power on the GPU, by passing a command through mailbox from E910 core to E902 that's responsible for powering up the GPU. The GPU driver was able to read the BVNC version from control registers, which confirms it was successfully powered on. [ 33.957467] powervr ffef400000.gpu: [drm] loaded firmware powervr/rogue_36.52.104.182_v1.fw [ 33.966008] powervr ffef400000.gpu: [drm] FW version v1.0 (build 6621747 OS) [ 38.978542] powervr ffef400000.gpu: [drm] *ERROR* Firmware failed to boot Though the driver still fails to boot the firmware, the mailbox driver works when used with the not-yet-upstreamed firmware AON driver. There is ongoing work to get the BXM-4-64 supported with the drm/imagination driver [1], though it's not completed yet. This work is based on the driver from the vendor kernel [2]. Link: https://gitlab.freedesktop.org/imagination/linux-firmware/-/issues/2 [1] Link: https://github.com/revyos/thead-kernel.git [2] Signed-off-by: Michal Wilczynski Signed-off-by: Jassi Brar

mailbox: mtk-cmdq: fix wrong use of sizeof in cmdq_get_clocks()

2024-11-24T19:02:31Z

It should be size of the struct clk_bulk_data, not data pointer pass to devm_kcalloc(). Fixes: aa1609f571ca ("mailbox: mtk-cmdq: Dynamically allocate clk_bulk_data structure") Signed-off-by: Yang Yingliang Signed-off-by: Jassi Brar

mailbox: ti-msgmgr: Allow building under COMPILE_TEST

2024-11-24T18:57:54Z

The TI message manager driver can be compiled without ARCH_KEYSTONE nor ARCH_K3 enabled. Allow it to be built under COMPILE_TEST. Signed-off-by: Andrew Davis Acked-by: Arnd Bergmann Reviewed-by: Nishanth Menon Signed-off-by: Jassi Brar

mailbox: ti-msgmgr: Remove use of of_match_ptr() helper

2024-11-24T18:57:49Z

When OF support is disabled the of_device_id struct match table can be conditionally compiled out, this helper allows the assignment to also be turned into a NULL conditionally. When the of_device_id struct is not conditionally defined based on OF then the table will be unused causing a warning. The two options are to either set the table as _maybe_unused, or to just remove this helper since the table will always be defined. Do the latter here. Signed-off-by: Andrew Davis Acked-by: Arnd Bergmann Reviewed-by: Nishanth Menon Signed-off-by: Jassi Brar