Dear Myungjoo and Kukjin, Could you please review this patchset? Best Regards, Chanwoo Choi On 01/15/2015 10:50 AM, Chanwoo Choi wrote: > This patch-set adds the generic exynos bus frequency driver for memory bus > with DEVFREQ framework. The Samsung Exynos SoCs have the common architecture > for memory bus between DRAM memory and MMC/sub IP in SoC. This driver can > support the memory bus frequency driver for Exynos SoCs. > > Each memory bus block has a clock for memory bus speed and frequency > table which is changed according to the utilization of memory bus on runtime. > And then each memory bus group has the one more memory bus blocks and > OPP table (including frequency and voltage), regulator, devfreq-event > devices. > > There are a little difference about the number of memory bus because each Exynos > SoC have the different sub-IP and different memory bus speed. In spite of this > difference among Exynos SoCs, we can support almost Exynos SoC by adding > unique data of memory bus to devicetree file. > > Depend on: > - [PATCHv8 0/9] devfreq: Add devfreq-event class to provide raw data for devfreq device > : https://lkml.org/lkml/2015/1/7/795 > > Changelog: > > Changes from v3: > (https://lkml.org/lkml/2015/1/7/872) > - Change the driver name and path by comment > : drivers/devfreq/exynos-busfreq.c -> drivers/devfreq/exynos/exynos-bus.c > - Disable regulator when entering suspend state in exynos-bus.c > and enable it after wake-up from suspend state. > - Add 'exynos,saturation-ratio' property to calibrate the performance count > against cycle count. > - Add new patch to remove unused old driver > : drivers/devfreq/exynos/exynos4_bus.{c|h} > - Clean-up code for minor issue > - Add acked tag by Myungjoo Ham (DEVFREQ maintainer) > > Changes from v2: > (https://lkml.org/lkml/2014/12/31/2) > - Support the memory bus frequency feature for Exynos3250-based Monk board > - Fix build warning about variable uninitialized > > Changes from v1: > (https://lkml.org/lkml/2014/12/23/178) > - This patchset is rebased on v3.19-rc2. > - Fix bug after wake-up from suspend state. If devfreq device fail to get event, > exynos-busfreq retry to set the event for starting. > - Add memory bus group of Exynos4x12/Exynos4210 > - Add divider clock id for Exynos4 memory bus frequency > - Support memory bus frequency driver on Exynos4412-based TRATS2 board > - This patch-set has the dependency on following patch-set[1]: > [1] [PATCHv6 0/9] devfreq: Add devfreq-event class to provide raw data for devfreq device > : https://lkml.org/lkml/2014/12/28/139 > > Chanwoo Choi (9): > devfreq: exynos: Add generic exynos memory bus frequency driver > devfreq: exynos: Add documentation for generic exynos memory bus frequency driver > ARM: dts: Add memory bus node for Exynos3250 > clk: samsung: exynos4: Add divider clock id for memory bus frequency > ARM: dts: Add memory bus node for Exynos4x12 > ARM: dts: Add memory bus node for Exynos4210 > ARM: dts: Add the support for exynos busfreq on Exynos3250-based Rinato/Monk board > ARM: dts: Add the support for exynos busfreq on Exynos4412-based TRATS2 board > devfreq: exynos: Remove unused exynos4 memory busfreq driver > > .../devicetree/bindings/devfreq/exynos-bus.txt | 188 ++++ > arch/arm/boot/dts/exynos3250-monk.dts | 12 + > arch/arm/boot/dts/exynos3250-rinato.dts | 12 + > arch/arm/boot/dts/exynos3250.dtsi | 125 +++ > arch/arm/boot/dts/exynos4210.dtsi | 93 ++ > arch/arm/boot/dts/exynos4412-trats2.dts | 12 + > arch/arm/boot/dts/exynos4x12.dtsi | 121 +++ > drivers/clk/samsung/clk-exynos4.c | 10 +- > drivers/devfreq/Kconfig | 17 +- > drivers/devfreq/Makefile | 1 + > drivers/devfreq/exynos/Makefile | 2 +- > drivers/devfreq/exynos/exynos-bus.c | 598 +++++++++++ > drivers/devfreq/exynos/exynos4_bus.c | 1055 -------------------- > drivers/devfreq/exynos/exynos4_bus.h | 110 -- > include/dt-bindings/clock/exynos4.h | 7 +- > 15 files changed, 1184 insertions(+), 1179 deletions(-) > create mode 100644 Documentation/devicetree/bindings/devfreq/exynos-bus.txt > create mode 100644 drivers/devfreq/exynos/exynos-bus.c > delete mode 100644 drivers/devfreq/exynos/exynos4_bus.c > delete mode 100644 drivers/devfreq/exynos/exynos4_bus.h > -- 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
 |