On 2 May 2013 16:57, Wolfram Sang <wsa@xxxxxxxxxxxxx> wrote: > Hi, > >> >> + - Samsung GPIO variant (deprecated): >> >> + - gpios: The order of the gpios should be the following: <SDA, SCL>. >> >> + The gpio specifier depends on the gpio controller. >> > >> > Huh? Why should we support a deprecated method with a new driver? >> > > > This was left unanswered. I am curious. This was a previous reply i sent out to public, With my recent testing i can remove this deprecated method and use pinctrl instead. will be fixed in next revision. > >> >> +Optional properties: >> >> + - samsung,hs-mode: Mode of operation, High speed or Fast speed mode. If not >> >> + specified, default value is 0. >> >> + - samsung,hs-clock-freq: Desired operating frequency in Hz of the bus. >> >> + If not specified, the default value in Hz is 100000. >> >> + - samsung,fs-clock-freq: Desired operarting frequency in Hz of the bus. >> >> + If not specified, the default value in Hz is 100000. >> > >> > NACK! We have a generic binding for defining the bus speed. And >> > shouldn't hs-mode be set depending on the bus speed? > > Please use "clock-frequency" here, like other drivers do. I've tested this as well. > >> >> + /* In auto mode the length of xfer cannot be 0 */ >> >> + if (i2c->msg->len == 0) >> >> + i2c_auto_conf |= 0x1; >> > >> > So you send some byte then? Why not reject the message? >> This is to support the probing the devices (i2cdetect cases) > > No! This is not a proper SMBUS_QUICK if you send a byte! If it doesn't > work without sending data, then your device does not support it. This is > not uncommon. Please check the smbus specs if you are unsure. Ok, i will look into it, thanks for pointing out. With this fix, the i2cdetect works for me though. > >> >> + i2c->regs = of_iomap(np, 0); >> > >> > devm_ioremap_resource() >> This was a comment from Thomas on v1. >> https://lkml.org/lkml/2012/11/27/264 >> >> Kindly, suggest me which one is more optimal in this case. > > "Optimal" is difficult here, but devm_* has momentum and I prefer > consistency. I've seen the rate of adaption for devm_* functions, have changed in my local work. > >> Thanks for your valuable time and comments > > You're welcome! Thanks for the submission. Thanks again. Naveen > > Wolfram > -- Shine bright, (: Nav :) -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
