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Message-ID: <20150904082131.GB5090@Sanchayan-Arch.toradex.int> Date: Fri, 4 Sep 2015 13:51:31 +0530 From: maitysanchayan@...il.com To: Srinivas Kandagatla <srinivas.kandagatla@...aro.org> Cc: gregkh@...uxfoundation.org, maxime.ripard@...e-electrons.com, linux-arm-kernel@...ts.infradead.org, stefan@...er.ch, shawnguo@...nel.org, linux-kernel@...r.kernel.org Subject: Re: [PATCH v9 0/4] Implement OCOTP driver for Vybrid using NVMEM Hi, On 15-09-04 09:21:04, Srinivas Kandagatla wrote: > Hi Sanchayan, > > On 04/09/15 06:50, maitysanchayan@...il.com wrote: > > Hello, > > > > Ping? Anything preventing this from being accepted? I can rework it then if > > so. > Thanks for your patience, > > We are in the middle of merge window, I will pick the driver for 4.4 > after 4.3-rc1 is released for linux-next testing. Thank you very much for the update Srinivas. - Sanchayan. > > --srini > > > > > Thanks. > > > > - Sanchayan. > > > > On 15-08-12 18:49:17, Sanchayan Maity wrote: > >> Hello, > >> > >> This patchset is based on top of v9 of Srinivas's NVMEM framework patches. > >> Tested on Greg's tree char-misc-next branch along with Stefan's NAND driver > >> patchset. > >> > >> Sample output on Colibri VF50 > >> > >> root@...ibri-vf:/sys/bus/nvmem/devices/ocotp0# uname -a > >> Linux colibri-vf 4.2.0-rc6-00130-g24fcfdc #3 SMP Wed Aug 12 18:31:24 IST 2015 armv7l GNU/Linux > >> > >> root@...ibri-vf:/sys/bus/nvmem/devices/ocotp0# hexdump nvmem > >> 0000000 0000 0000 0000 0000 0000 0000 0000 0000 > >> * > >> 0000410 72a6 df64 0000 0000 0000 0000 0000 0000 > >> 0000420 11d4 2c14 0000 0000 0000 0000 0000 0000 > >> 0000430 0000 0000 0000 0000 0000 0000 0000 0000 > >> * > >> 0000450 0280 0000 0000 0000 0000 0000 0000 0000 > >> 0000460 0000 0000 0000 0000 0000 0000 0000 0000 > >> * > >> 0000880 8f01 0000 0000 0000 0000 0000 0000 0000 > >> 0000890 0000 0000 0000 0000 0000 0000 0000 0000 > >> * > >> 00008c0 0000 1000 0000 0000 0000 0000 0000 0000 > >> 00008d0 3202 0800 0000 0000 0000 0000 0000 0000 > >> 00008e0 0000 e100 0000 0000 0000 0000 0000 0000 > >> 00008f0 0000 0000 0000 0000 0000 0000 0000 0000 > >> * > >> 0000c80 bada bada 0000 0000 0000 0000 0000 0000 > >> * > >> 0000cc0 0000 0000 0000 0000 0000 0000 0000 0000 > >> * > >> 0000cf0 > >> > >> The driver has changed quite a bit from the first version > >> relying on of_platform_populate in mach file, to using > >> SoC driver under drivers/soc and finally to NVMEM. > >> > >> Feedback and comments most welcome. > >> > >> Version 8 patches can be found here > >> https://lkml.org/lkml/2015/8/10/566 > >> > >> Version 7 patches can be found here > >> https://lkml.org/lkml/2015/8/6/440 > >> > >> Version 6 RFC patches can be found here > >> http://lkml.iu.edu/hypermail/linux/kernel/1506.2/05123.html > >> > >> Version 5 of the patchset can be found here > >> http://lkml.iu.edu/hypermail/linux/kernel/1506.0/03787.html > >> > >> Version 4 of the patchset can be found here > >> https://lkml.org/lkml/2015/5/26/199 > >> > >> Version 3 of the patchset can be found here > >> http://www.spinics.net/lists/arm-kernel/msg420847.html > >> > >> Version 2 of the patchset can be found here > >> http://www.spinics.net/lists/devicetree/msg80654.html > >> > >> Version 1 of the patchset can be found here > >> http://www.spinics.net/lists/devicetree/msg80257.html > >> > >> The RFC version can be found here > >> https://lkml.org/lkml/2015/5/11/13 > >> > >> Changes since v8: > >> 1. Fix three lines over 80 characters > >> 2. Rebase on top of Greg's char-misc-next branch > >> > >> Changes since v7: > >> 1. Add COMPILE_TEST to Kconfig > >> 2. Use GENMASK and BIT macros where applicable > >> 3. Fix a code alignment issue > >> 4. Get the max_register value for regmap config using > >> resource_size() > >> 5. Also add copyright info as the driver logic is based off > >> on ocotp code in barebox > >> 6. Add missing info related to clock in DT binding doc > >> > >> Changes since v6: > >> 1. Use the v9 of NVMEM framework patchset > >> 2. Add a few comments > >> 3. Initialise buffer address not part of the fuse map to 0 > >> instead of only handling buffer locations with valid fuse > >> addresses. > >> > >> Changes since v5: > >> Use NVMEM framework by Srinivas and Maxime > >> > >> Changes since v4: > >> 1. Use devm_* family of functions and use a struct to get rid of > >> global variables (suggested by Joachim Eastwood) > >> 2. Make Kconfig govern the compilation with tristate, instead of > >> earlier bool. Paul Bolle raised a valid point that perhaps this > >> should have been built in with the bool, however I had not taken > >> into consideration generic distro kernels and it makes sense to > >> have this tristated. (comments from Paul Bolle and Andreas Farber) > >> > >> Changes since v3: > >> Instead of using the syscon_regmap_lookup_by_compatible function > >> use a phandle in the device tree along with offsets specified in > >> this phandle node and then read the offset along with the device > >> node in the driver for reading from the required region. > >> > >> Changes since v2: > >> Implement the SoC bus code as a driver in drivers/soc > >> by registering with fsl,mscm-cpucfg as per Arnd's feedback > >> > >> Changes since v1: > >> Sort the headers in alphabetical order > >> > >> Changes since RFC: > >> Use a DT entry for the ROM area while specifying it as syscon. > >> > >> Thanks & Regards, > >> Sanchayan Maity. > >> > >> Sanchayan Maity (4): > >> clk: clk-vf610: Add clock for Vybrid OCOTP controller > >> ARM: dts: vfxxx: Add OCOTP node > >> drivers: nvmem: Add Vybrid OCOTP support > >> nvmem: Add DT binding documentation for Vybrid OCOTP driver > >> > >> .../devicetree/bindings/nvmem/vf610-ocotp.txt | 21 ++ > >> arch/arm/boot/dts/vfxxx.dtsi | 9 + > >> drivers/clk/imx/clk-vf610.c | 1 + > >> drivers/nvmem/Kconfig | 10 + > >> drivers/nvmem/Makefile | 2 + > >> drivers/nvmem/vf610-ocotp.c | 302 +++++++++++++++++++++ > >> include/dt-bindings/clock/vf610-clock.h | 3 +- > >> 7 files changed, 347 insertions(+), 1 deletion(-) > >> create mode 100644 Documentation/devicetree/bindings/nvmem/vf610-ocotp.txt > >> create mode 100644 drivers/nvmem/vf610-ocotp.c > >> > >> -- > >> 2.5.0 > >> -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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