kernel.git/drivers/soc/renesas, branch linux-5.14.y

soc: renesas: Add support to read LSI DEVID register of RZ/G2{L,LC} SoC's

2021-06-10T13:29:03Z

Add support for reading the LSI DEVID register which is present in SYSC block of RZ/G2{L,LC} SoC's. Signed-off-by: Lad Prabhakar Reviewed-by: Biju Das Link: https://lore.kernel.org/r/20210609163717.3083-3-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Geert Uytterhoeven

soc: renesas: Add ARCH_R9A07G044 for the new RZ/G2L SoC's

2021-06-10T13:28:57Z

Add ARCH_R9A07G044 as a configuration symbol for the new Renesas RZ/G2L SoC variants. Signed-off-by: Lad Prabhakar Reviewed-by: Biju Das Link: https://lore.kernel.org/r/20210609153230.6967-5-prabhakar.mahadev-lad.rj@bp.renesas.com Signed-off-by: Geert Uytterhoeven

soc: renesas: rmobile-sysc: Mark fwnode when PM domain is added

2021-03-08T09:25:00Z

Currently, there are two drivers binding to the R-Mobile System Controller (SYSC): - The rmobile-sysc driver registers PM domains from a core_initcall(), and does not use a platform driver, - The optional rmobile-reset driver registers a reset handler, and does use a platform driver. As fw_devlink only considers devices, commit bab2d712eeaf9d60 ("PM: domains: Mark fwnodes when their powerdomain is added/removed") works only for PM Domain drivers where the DT node is a real device node, and not for PM Domain drivers using a hierarchical representation inside a subnode. Hence if fw_devlink is enabled, probing of on-chip devices that are part of the SYSC PM domain is deferred until the optional rmobile-reset driver has been bound. If the rmobile-reset driver is not available, this will never happen, and thus lead to complete system boot failures. Fix this by explicitly marking the fwnode initialized. Suggested-by: Saravana Kannan Signed-off-by: Geert Uytterhoeven Acked-by: Saravana Kannan Link: https://lore.kernel.org/r/20210216123958.3180014-1-geert+renesas@glider.be

soc: renesas: rmobile-sysc: Remove unneeded platform includes

2021-03-08T09:25:00Z

As of commit b587288001f05c0e ("ARM: shmobile: R-Mobile: Remove legacy PM Domain code"), the R-Mobile System Controller driver no longer handles the adding of platform devices to PM Domains, but delegates that to the PM Domain core code. Signed-off-by: Geert Uytterhoeven Link: https://lore.kernel.org/r/20210205132141.1920137-1-geert+renesas@glider.be

soc: renesas: rcar-sysc: Mark device node OF_POPULATED after init

2021-01-29T08:10:25Z

The R-Car System Controller (SYSC) driver registers PM domains from an early_initcall(). It does not use a platform driver, as secondary CPU startup on R-Car H1 needs to control the CPU power domains, before initialization of the driver framework. As fw_devlink only considers devices, it does not know that the System Controller is ready. Hence probing of on-chip devices that are part of the SYSC PM domain fails if fw_devlink is enabled: probe deferral - supplier e6180000.system-controller not ready Fix this by setting the OF_POPULATED flag for the SYSC device node after successful initialization. This will make of_link_to_phandle() ignore the SYSC device node as a dependency, and consumer devices will be probed again. Signed-off-by: Geert Uytterhoeven Reviewed-by: Saravana Kannan Link: https://lore.kernel.org/r/20210128082847.2205950-1-geert+renesas@glider.be

soc: renesas: rcar-sysc: Use readl_poll_timeout_atomic()

2021-01-26T09:40:14Z

Replace the open-coded polling loops by calls to the readl_poll_timeout_atomic() helper macro. Signed-off-by: Geert Uytterhoeven Reviewed-by: Niklas Söderlund Link: https://lore.kernel.org/r/20210125142606.1050130-1-geert+renesas@glider.be

soc: renesas: rmobile-sysc: Stop using __raw_*() I/O accessors

2020-11-27T13:09:37Z

There is no reason to keep on using the __raw_{read,write}l() I/O accessors in Renesas ARM driver code. Switch to using the plain {read,write}l() I/O accessors, to have a chance that this works on big-endian. Suggested-by: Arnd Bergmann Signed-off-by: Geert Uytterhoeven Link: https://lore.kernel.org/r/20201119125214.4065925-1-geert+renesas@glider.be

soc: renesas: rmobile-sysc: Fix some leaks in rmobile_init_pm_domains()

2020-10-26T09:00:14Z

This code needs to call iounmap() on one error path. Fixes: 2173fc7cb681 ("ARM: shmobile: R-Mobile: Add DT support for PM domains") Signed-off-by: Dan Carpenter Link: https://lore.kernel.org/r/20200923113142.GC1473821@mwanda Signed-off-by: Geert Uytterhoeven

soc: renesas: r8a779a0-sysc: Add r8a779a0 support

2020-09-16T06:57:31Z

Add support for R-Car V3U (R8A779A0) SoC power areas and register access, because register specification differs from R-Car Gen2/3. Inspired by patches in the BSP by Tho Vu. Signed-off-by: Yoshihiro Shimoda Link: https://lore.kernel.org/r/1599810232-29035-5-git-send-email-yoshihiro.shimoda.uh@renesas.com Signed-off-by: Geert Uytterhoeven

soc: renesas: rcar-rst: Add support for R-Car V3U

2020-09-10T15:01:38Z

Add support for R-Car V3U (R8A779A0) to the R-Car RST driver. Signed-off-by: Yoshihiro Shimoda Link: https://lore.kernel.org/r/1599470390-29719-12-git-send-email-yoshihiro.shimoda.uh@renesas.com Signed-off-by: Geert Uytterhoeven