在 2017/6/29 18:29, Heiko Stübner 写道:
Hi, Am Mittwoch, 14. Juni 2017, 20:11:06 CEST schrieb Jianhong Chen:在 2017/6/9 20:17, Heiko Stuebner 写道:Am Freitag, 9. Juni 2017, 13:37:26 CEST schrieb Linus Walleij:Heiko, can you please look at this patch. On Thu, Jun 8, 2017 at 9:30 AM, Jianhong Chen <chenjh@xxxxxxxxxxxxxx>wrote:From: chenjh <chenjh@xxxxxxxxxxxxxx>Full name please.git config --global user.name "John Doe" might do the and make this permanent for all your commits :-)RK805 has two configurable GPIOs that can be used for several purposes. These are output only. This driver is generic for other Rockchip PMICs to be added. Signed-off-by: chenjh <chenjh@xxxxxxxxxxxxxx>Dito. Your commit message says they are output-only, yet you implement .direction_input(). So what is is going to be?So far, I've only seen the rk808 and rk818. Both do not have any configurable pins. The rk805 which is a sort of variant of the above, does have the two pins defined below, but in the manual I could also only find them as output-only and having no other function than being output-pins. So I don't really know if all the input- or "gpio-mode"- handling is only an oversight (copy'n'paste) or if there are yet other rk808 variants around that can actually be configured as inputs or even non-gpio modes? I hope Jianhong will be able to answer that. HeikoThis driver is not only for rk805, but also intend for rk816 and furtrue PMICs. The rk816 has one multi function pin(TS/GPIO), when setting as gpio, it can be configured as output or input. Here is simple description from manual: "Thermistor input. Connect a thermistor from this pin to ground. The thermistor is usually inside the battery pack. (multi-function for GPIO) ".As Linus suggested, this sounds like you want a pinctrl driver that also handles the gpios. Ideally you might also directly provide support for this rk816 in the same patch series, so reviewers can see the full extend of what is supported. Heiko
Hi, Heiko:I have moved gpio-rk805.c to drivers/pinctrl/pinctrl-rk805.c, this driver is also designed for rk816 or furture PMICs to extend. RK816 is not in our team's plan at this porting, it will be added at next time, so I don't directly provide rk816 in this driver. I will add more descriptions in commit message to express my design purpose.
Are you agreed ? If so, I will send [PATCH v7] today.
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陈健洪 (Joseph Chen)
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