| Message ID | 20250210184910.161780-1-prabhakar.mahadev-lad.rj@bp.renesas.com (mailing list archive) |
|---|---|
| Headers | show |
| Series | Add support to configure CPG block for watchdog on RZ/V2H(P) and RZ/G3E SoCs | expand |
Hi All, On Mon, Feb 10, 2025 at 6:49 PM Prabhakar <prabhakar.csengg@gmail.com> wrote: > > From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> > > Hi All, > > This patch series adds SYSCON support to configure and retrieve boot > status information from the CPG block for the RZ/V2H(P) and RZ/G3E SoCs. > Summary of Changes, > > Clock: > Add syscon compatible support to the CPG block in bindings and > device trees. > > Watchdog: > Document the renesas,r9a09g057-syscon-wdt-errorrst property. > Update the watchdog driver to fetch and report boot status via > Error Reset Registers (CPG_ERROR_RSTm) and configure the > CPG_ERRORRST_SEL2 register. > > Device Tree: > -Add the syscon property to CPG nodes in R9A09G057 and R9A09G047 > SoC DTSI. > -Add the renesas,syscon-cpg-error-rst property to WDT nodes in > R9A09G057 and R9A09G047 SoC DTSI. > > v3->v4 > - Added support to configure CPG_ERRORRST_SEL2 register > - Updated commit messages > > v2->v3 > - Updated comment section to mention there aren't any ABI breakages with > this patch series. > > Cheers, > Prabhakar > > Lad Prabhakar (9): > dt-bindings: clock: rzv2h-cpg: Add syscon compatible for CPG > clk: renesas: Kconfig: Select MFD_SYSCON for RZ/V2H(P) family driver > arm64: dts: renesas: r9a09g047: Add `syscon` compatible for CPG node > arm64: dts: renesas: r9a09g057: Add `syscon` compatible for CPG node > dt-bindings: watchdog: renesas: Document > `renesas,syscon-cpg-error-rst` property > watchdog: rzv2h_wdt: Add support to retrieve the bootstatus > information > watchdog: rzv2h_wdt: Configure CPG_ERRORRST_SEL2 register > arm64: dts: renesas: r9a09g057: Add `renesas,syscon-cpg-error-rst` > property to WDT node > arm64: dts: renesas: r9a09g047: Add `renesas,syscon-cpg-error-rst` > property to WDT node > Gentle ping. Cheers, Prabhakar
Hi Prabhakar, On Mon, 10 Feb 2025 at 19:49, Prabhakar <prabhakar.csengg@gmail.com> wrote: > From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> > > This patch series adds SYSCON support to configure and retrieve boot > status information from the CPG block for the RZ/V2H(P) and RZ/G3E SoCs. > Summary of Changes, Wasn't the plan to use a DT property under /chosen instead? (Yes, I go to great lengths to avoid reviewing and accepting patches adding syscon compatible values anywhere ;-) > v3->v4 > - Added support to configure CPG_ERRORRST_SEL2 register Oh, I guess that's the reason why you changed your mind. I will reply to that patch... Gr{oetje,eeting}s, Geert
From: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Hi All, This patch series adds SYSCON support to configure and retrieve boot status information from the CPG block for the RZ/V2H(P) and RZ/G3E SoCs. Summary of Changes, Clock: Add syscon compatible support to the CPG block in bindings and device trees. Watchdog: Document the renesas,r9a09g057-syscon-wdt-errorrst property. Update the watchdog driver to fetch and report boot status via Error Reset Registers (CPG_ERROR_RSTm) and configure the CPG_ERRORRST_SEL2 register. Device Tree: -Add the syscon property to CPG nodes in R9A09G057 and R9A09G047 SoC DTSI. -Add the renesas,syscon-cpg-error-rst property to WDT nodes in R9A09G057 and R9A09G047 SoC DTSI. v3->v4 - Added support to configure CPG_ERRORRST_SEL2 register - Updated commit messages v2->v3 - Updated comment section to mention there aren't any ABI breakages with this patch series. Cheers, Prabhakar Lad Prabhakar (9): dt-bindings: clock: rzv2h-cpg: Add syscon compatible for CPG clk: renesas: Kconfig: Select MFD_SYSCON for RZ/V2H(P) family driver arm64: dts: renesas: r9a09g047: Add `syscon` compatible for CPG node arm64: dts: renesas: r9a09g057: Add `syscon` compatible for CPG node dt-bindings: watchdog: renesas: Document `renesas,syscon-cpg-error-rst` property watchdog: rzv2h_wdt: Add support to retrieve the bootstatus information watchdog: rzv2h_wdt: Configure CPG_ERRORRST_SEL2 register arm64: dts: renesas: r9a09g057: Add `renesas,syscon-cpg-error-rst` property to WDT node arm64: dts: renesas: r9a09g047: Add `renesas,syscon-cpg-error-rst` property to WDT node .../bindings/clock/renesas,rzv2h-cpg.yaml | 10 ++-- .../bindings/watchdog/renesas,wdt.yaml | 17 ++++++ arch/arm64/boot/dts/renesas/r9a09g047.dtsi | 5 +- arch/arm64/boot/dts/renesas/r9a09g057.dtsi | 6 ++- drivers/clk/renesas/Kconfig | 1 + drivers/watchdog/rzv2h_wdt.c | 54 +++++++++++++++++++ 6 files changed, 87 insertions(+), 6 deletions(-)