On Mon, Nov 07, 2016 at 03:39:30PM +0530, Pankaj Dubey wrote: > During recent test on Exynos4210 based Origen board, I observed > RTC1 probe is failing giving following error message: > > [ 2.195817] s3c-rtc 10070000.rtc: failed to find rtc source clock > [ 2.200475] s3c-rtc: probe of 10070000.rtc failed with error -2 > [ 2.206597] i2c /dev entries driver > > This is mainly because S3C-RTC expects two clocks "rtc" and "rtc_src". > In case of Origen board this second clock is supplied by MAX8997 clock > oscillator. > This patch series modified MAX8997 MFD driver for supporting regmap, and > adds max8997-clk driver. Also it documentation where-ever required and > extends RTC node in exynos4210-origen.dts for supporting both clocks. > > After this patch series, RTC is getting probed properly on Origen board. > > This patch series is tested for SMP boot on Origen board. No need to re-invent the wheel: https://lkml.org/lkml/2016/6/17/57 http://lists.infradead.org/pipermail/linux-arm-kernel/2016-June/437113.html I won't be sending updates for these patches. Feel free to continue the work. BR, Krzysztof > > Pankaj Dubey (6): > mfd: max8997: Initialize max8997 register map > dt-bindings: clk: max8997: Add DT binding documentation > clk: Add driver for Maxim-8997 PMIC clocks > ARM: dts: Add clock provider specific properties to max8997 node > mfd: max8997: Add max8997-clk name in mfd_cell > ARM: dts: Extend the S3C RTC node with rtc_src clock > > .../devicetree/bindings/clock/maxim,max8997.txt | 44 +++++++++++++ > .../bindings/regulator/max8997-regulator.txt | 3 + > arch/arm/boot/dts/exynos4210-origen.dts | 6 +- > arch/arm/boot/dts/exynos4210-trats.dts | 3 +- > drivers/clk/Kconfig | 10 +++ > drivers/clk/Makefile | 1 + > drivers/clk/clk-max8997.c | 76 ++++++++++++++++++++++ > drivers/mfd/max8997.c | 15 +++++ > include/dt-bindings/clock/maxim,max8997.h | 23 +++++++ > include/linux/mfd/max8997-private.h | 3 + > 10 files changed, 182 insertions(+), 2 deletions(-) > create mode 100644 Documentation/devicetree/bindings/clock/maxim,max8997.txt > create mode 100644 drivers/clk/clk-max8997.c > create mode 100644 include/dt-bindings/clock/maxim,max8997.h > > -- > 2.7.4 > -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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