On 05/04/2014 01:17 AM, Greg KH wrote: > On Fri, Apr 11, 2014 at 01:48:28PM +0200, Tomasz Stanislawski wrote: >> Hi everyone, >> This patchset adds support for sii9234 HD Mobile Link Bridge. The chip is used >> to convert HDMI signal into MHL. The driver enables HDMI output on Trats and >> Trats2 boards. >> >> The code is based on the driver [1] developed by: >> Adam Hampson <ahampson@xxxxxxxxxxxxxxx> >> Erik Gilling <konkers@xxxxxxxxxxx> >> with additional contributions from: >> Shankar Bandal <shankar.b@xxxxxxxxxxx> >> Dharam Kumar <dharam.kr@xxxxxxxxxxx> >> >> The drivers architecture was greatly simplified and transformed into a form >> accepted (hopefully) by opensource community. The main differences from >> original code are: >> * using single I2C client instead of 4 subclients >> * remove all logic non-related to establishing HDMI link >> * simplify error handling >> * rewrite state machine in interrupt handler >> * wakeup and discovery triggered by an extcon event >> * integrate with Device Tree >> >> For now, the driver is added to drivers/misc/ directory because it has neigher >> userspace nor kernel interface. The chip is capable of receiving and >> processing CEC events, so the driver may export an input device in /dev/ in the >> future. However CEC could be also handled by HDMI driver. >> >> I kindly ask for suggestions about the best location for this driver. > > It really is an extcon driver, so why not put it in drivers/extcon? And > that might solve any build issues you have if you don't select extcon in > your .config file and try to build this code :) > > thanks, Hi Greg, Thank you for your comments. As I understand, drivers/extcon contains only extcon providers. This driver is an extcon client, so mentioned location may not be adequate. I am surprised that there are no comments about this driver. Sii9234 chip is present on many exynos based boards/phones and HDMI subsystem will not work without this code. Regards, Tomasz Stanislawski > > greg k-h > -- 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
