Naresh, Tony, Abel, Geert, Dmitry, Maxim(s), Miquel, Luca, Doug, Martin, Jean-Philippe, Can I get your Tested-by's for this v3 series please? Vladimir, Ccing you because DSA's and fw_devlink have known/existing problems (still in my TODOs to fix). But I want to make sure this series doesn't cause additional problems for DSA. All, This patch series improves fw_devlink in the following ways: 1. It no longer cares about a fwnode having a "compatible" property. It figures this out more dynamically. The only expectation is that fwnodes that are converted to devices actually get probed by a driver for the dependencies to be enforced correctly. 2. Finer grained dependency tracking. fw_devlink will now create device links from the consumer to the actual resource's device (if it has one, Eg: gpio_device) instead of the parent supplier device. This improves things like async suspend/resume ordering, potentially remove the need for frameworks to create device links, more parallelized async probing, and better sync_state() tracking. 3. Handle hardware/software quirks where a child firmware node gets populated as a device before its parent firmware node AND actually supplies a non-optional resource to the parent firmware node's device. 4. Way more robust at cycle handling (see patch for the insane cases). 5. Stops depending on OF_POPULATED to figure out some corner cases. 6. Simplifies the work that needs to be done by the firmware specific code. The v3 series has gone through my usual testing on my end and looks good to me. Thanks, Saravana [1] - https://lore.kernel.org/lkml/20220810060040.321697-1-saravanak@xxxxxxxxxx/ [2] - https://lore.kernel.org/lkml/CAGETcx-JUV1nj8wBJrTPfyvM7=Mre5j_vkVmZojeiumUGG6QZQ@xxxxxxxxxxxxxx/ v1 -> v2: - Fixed Patch 1 to handle a corner case discussed in [2]. - New patch 10 to handle "fsl,imx8mq-gpc" being initialized by 2 drivers. - New patch 11 to add fw_devlink support for SCMI devices. v2 -> v3: - Addressed most of Andy's comments in v2 - Added Colin and Sudeep's Tested-by for the series (except the imx and renesas patches) - Added Sudeep's Acked-by for the scmi patch. - Added Geert's Reviewed-by for the renesas patch. - Fixed gpiolib crash reported by Naresh. - Patch 6: Fix __fwnode_links_move_consumers() to preserve fwnode link flags. - New Patch 12 to fix nvmem-cells issue reported by Maxim(s)/Miquel. - Deleted some stale function doc in Patch 8 Cc: Abel Vesa <abel.vesa@xxxxxxxxxx> Cc: Alexander Stein <alexander.stein@xxxxxxxxxxxxxxx> Cc: Tony Lindgren <tony@xxxxxxxxxxx> Cc: Sudeep Holla <sudeep.holla@xxxxxxx> Cc: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx> Cc: John Stultz <jstultz@xxxxxxxxxx> Cc: Doug Anderson <dianders@xxxxxxxxxxxx> Cc: Guenter Roeck <linux@xxxxxxxxxxxx> Cc: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx> Cc: Maxim Kiselev <bigunclemax@xxxxxxxxx> Cc: Maxim Kochetkov <fido_max@xxxxxxxx> Cc: Miquel Raynal <miquel.raynal@xxxxxxxxxxx> Cc: Luca Weiss <luca.weiss@xxxxxxxxxxxxx> Cc: Colin Foster <colin.foster@xxxxxxxxxxxxxxxx> Cc: Martin Kepplinger <martin.kepplinger@xxxxxxx> Cc: Jean-Philippe Brucker <jpb@xxxxxxxxxx> Cc: Vladimir Oltean <vladimir.oltean@xxxxxxx> Saravana Kannan (12): driver core: fw_devlink: Don't purge child fwnode's consumer links driver core: fw_devlink: Improve check for fwnode with no device/driver soc: renesas: Move away from using OF_POPULATED for fw_devlink gpiolib: Clear the gpio_device's fwnode initialized flag before adding driver core: fw_devlink: Add DL_FLAG_CYCLE support to device links driver core: fw_devlink: Allow marking a fwnode link as being part of a cycle driver core: fw_devlink: Consolidate device link flag computation driver core: fw_devlink: Make cycle detection more robust of: property: Simplify of_link_to_phandle() irqchip/irq-imx-gpcv2: Mark fwnode device as not initialized firmware: arm_scmi: Set fwnode for the scmi_device mtd: mtdpart: Don't create platform device that'll never probe drivers/base/core.c | 449 +++++++++++++++++++++----------- drivers/firmware/arm_scmi/bus.c | 3 +- drivers/gpio/gpiolib.c | 7 + drivers/irqchip/irq-imx-gpcv2.c | 1 + drivers/mtd/mtdpart.c | 10 + drivers/of/property.c | 84 +----- drivers/soc/imx/gpcv2.c | 2 +- drivers/soc/renesas/rcar-sysc.c | 2 +- include/linux/device.h | 1 + include/linux/fwnode.h | 12 +- 10 files changed, 344 insertions(+), 227 deletions(-) -- 2.39.1.519.gcb327c4b5f-goog
