Hi Chanwoo, On 9 December 2015 at 09:41, Chanwoo Choi <cw00.choi@xxxxxxxxxxx> wrote: > Hi Anand, > > On 2015년 11월 27일 09:34, Chanwoo Choi wrote: >> Hi Anand, >> >> On 2015년 11월 27일 02:17, Anand Moon wrote: >>> Hi Chanwoo, >>> >>> On 26 November 2015 at 21:42, Chanwoo Choi <cwchoi00@xxxxxxxxx> wrote: >>>> On Thu, Nov 26, 2015 at 11:00 PM, MyungJoo Ham <myungjoo.ham@xxxxxxxxxxx> wrote: >>>>> On Thu, Nov 26, 2015 at 10:47 PM, Chanwoo Choi <cw00.choi@xxxxxxxxxxx> wrote: >>>>>> This patch adds the generic exynos bus frequency driver for AMBA AXI bus >>>>>> of sub-blocks in exynos SoC with DEVFREQ framework. The Samsung Exynos SoC >>>>>> have the common architecture for bus between DRAM and sub-blocks in SoC. >>>>>> This driver can support the generic bus frequency driver for Exynos SoCs. >>>>>> >>>>>> In devicetree, Each bus block has a bus clock, regulator, operation-point >>>>>> and devfreq-event devices which measure the utilization of each bus block. >>>>>> >>>>>> Signed-off-by: Chanwoo Choi <cw00.choi@xxxxxxxxxxx> >>>>>> --- >>>>>> drivers/devfreq/Kconfig | 15 ++ >>>>>> drivers/devfreq/Makefile | 1 + >>>>>> drivers/devfreq/exynos/Makefile | 1 + >>>>>> drivers/devfreq/exynos/exynos-bus.c | 443 ++++++++++++++++++++++++++++++++++++ >>>>>> 4 files changed, 460 insertions(+) >>>>>> create mode 100644 drivers/devfreq/exynos/exynos-bus.c >>>>>> >>>>> >>>>> Are we finally getting a common Exynos bus driver with full DT support? >>>>> (can this replace both Exynos4/5 drivers and support Exynos7 series?) >>>> >>>> Yes. >>>> This patch-set would support all Exynos SoCs for bus frequency driver. >>>> To make sure the support for Exynos7 series, I need to check the TRM >>>> document of Exynos7. I think it is possible for support Exynos7. >>>> >>>> I'm going to test this driver on various Exynos-based board. >>>> >>>> Regards, >>>> Chanwoo Choi >>> >>> Please do consider Exynos 542x series as well. >> >> Sure. I'll to test it on Exynos5422-based Odroid-XU3. > > I send the v2 patchset but this patchset don't include > the support of Odroid-XU3 because of only Exynos542x has the > special addtional sequence to change the source clock > of DRAM. So, I'm going to support the bus frequency on Exynos542x. > After completing it, I'll send the separate patches. > > Thanks, > Chanwoo Choi > Not an issue. Thanks for the update. -Anand Moon -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
