Hi, On 8/14/24 12:27 PM, Konrad Dybcio wrote: > Wire up OF support for SSAM drivers, to use with Surface Laptop 7 and > other Qualcomm-based devices. > > Patch 3 references compatible strings introduced in [1] > > [1] https://lore.kernel.org/linux-arm-msm/20240809-topic-sl7-v1-1-2090433d8dfc@xxxxxxxxxxx/T/#u > > Signed-off-by: Konrad Dybcio <quic_kdybcio@xxxxxxxxxxx> Thank you for your patch-series, I've applied the series to my review-hans branch: https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git/log/?h=review-hans I did notice the following compiler warning when test building: drivers/platform/surface/surface_aggregator_registry.c:278:36: warning: ‘ssam_node_group_sl7’ defined but not used [-Wunused-variable] 278 | static const struct software_node *ssam_node_group_sl7[] = { | ^~~~~~~~~~~~~~~~~~~ One way to fix this would be add #ifdef CONFIG_OF around the definition of ssam_node_group_sl7, but then future devicetree based surface devices would need more #ifdef-s so instead I've solved it by squashing in this fix: diff --git a/drivers/platform/surface/surface_aggregator_registry.c b/drivers/platform/surface/surface_aggregator_registry.c index 495cb4300617..ac96e883cb57 100644 --- a/drivers/platform/surface/surface_aggregator_registry.c +++ b/drivers/platform/surface/surface_aggregator_registry.c @@ -415,14 +415,12 @@ static const struct acpi_device_id ssam_platform_hub_acpi_match[] = { }; MODULE_DEVICE_TABLE(acpi, ssam_platform_hub_acpi_match); -#ifdef CONFIG_OF -static const struct of_device_id ssam_platform_hub_of_match[] = { +static const struct of_device_id ssam_platform_hub_of_match[] __maybe_unused = { /* Surface Laptop 7 */ { .compatible = "microsoft,romulus13", (void *)ssam_node_group_sl7 }, { .compatible = "microsoft,romulus15", (void *)ssam_node_group_sl7 }, { }, }; -#endif static int ssam_platform_hub_probe(struct platform_device *pdev) { Once I've run some tests on this branch the patches there will be added to the platform-drivers-x86/for-next branch and eventually will be included in the pdx86 pull-request to Linus for the next merge-window. Regards, Hans > --- > Changes in v3: > - Drop unnecessary nullchecks > - Add MODULE_ALIAS in the platform hub driver > - Fix MODULE_DEVICE_TABLE after rename > - Prolong the '----' comment to 80 lines > - Change the current-speed bindings description to ": true", in > preparation for krzk's serial device bindings reorganization > - Link to v2: https://lore.kernel.org/r/20240810-topic-sam-v2-0-8a8eb368a4f0@xxxxxxxxxxx > > Changes in v2: > - Fix kerneldoc > - Drop the drivers/acpi change (oops) > - Style fixes > - Don't assign int to acpi_status > - Don't scan the bus twice in SAM core probe > - Link to v1: https://lore.kernel.org/r/20240809-topic-sam-v1-0-05bca1932614@xxxxxxxxxxx > > --- > Konrad Dybcio (3): > dt-bindings: serial: Allow embedded-controller as child node > dt-bindings: platform: Add Surface System Aggregator Module > platform/surface: Add OF support > > .../bindings/platform/microsoft,surface-sam.yaml | 47 +++++++++++++ > .../devicetree/bindings/serial/serial.yaml | 2 +- > drivers/platform/surface/aggregator/bus.c | 2 + > drivers/platform/surface/aggregator/controller.c | 67 ++++++++++++++---- > drivers/platform/surface/aggregator/core.c | 82 +++++++++++++++++----- > drivers/platform/surface/surface3_power.c | 1 + > drivers/platform/surface/surface_acpi_notify.c | 1 + > .../platform/surface/surface_aggregator_registry.c | 47 +++++++++++-- > 8 files changed, 210 insertions(+), 39 deletions(-) > --- > base-commit: 1e391b34f6aa043c7afa40a2103163a0ef06d179 > change-id: 20240809-topic-sam-5de2f0ec9370 > > Best regards,
