Hi.
I missed this patch. Sorry for chiming in late.
2016-03-31 14:26 GMT+09:00 Peng Fan <van.free...@gmail.com>:
> Hi Simon,
>
> On Sat, Mar 12, 2016 at 07:51:47PM -0700, Simon Glass wrote:
>>+Masahiro
>>
>>On 11 March 2016 at 22:17, Peng Fan <van.free...@gmail.com> wrote:
>>> We may have pinmux settings for pinctrl device, like the following
>>> example:
>>> "
>>> &iomuxc {
>>> pinctrl-names = "default";
>>> pinctrl-0 = <&pinctrl_hog_1>;
>>> imx6ul-evk {
>>> pinctrl_hog_1: hoggrp-1 {
>>> fsl,pins = <
>>> MX6UL_PAD_UART1_RTS_B__GPIO1_IO19
>>> 0x17059 /* SD1 CD */
>>> MX6UL_PAD_GPIO1_IO05__USDHC1_VSELECT
>>> 0x17059 /* SD1 VSELECT */
>>> MX6UL_PAD_GPIO1_IO09__GPIO1_IO09
>>> 0x17059 /* SD1 RESET */
>>> MX6UL_PAD_SNVS_TAMPER0__GPIO5_IO00
>>> 0x80000000
>>> >;
>>> };
>>> [......]
>>> };
>>> "
>>>
>>> We should not only select pinctrl state for non pinctrl devices, we
>>> need also to handle pin mux settings such as pinctrl_log for pinctrl
>>> devices.
>>>
>>> So at the end of probing process of pinctrl device, select the default
>>> state of pinctrl device.
>>>
>>> Signed-off-by: Peng Fan <van.free...@gmail.com>
>>> Cc: Simon Glass <s...@chromium.org>
>>> ---
>>> drivers/core/device.c | 3 +++
>>> 1 file changed, 3 insertions(+)
>>>
>>> diff --git a/drivers/core/device.c b/drivers/core/device.c
>>> index cb24a61..6b1ba22 100644
>>> --- a/drivers/core/device.c
>>> +++ b/drivers/core/device.c
>>> @@ -332,6 +332,9 @@ int device_probe(struct udevice *dev)
>>> if (ret)
>>> goto fail_uclass;
>>>
>>> + if (dev->parent && device_get_uclass_id(dev) == UCLASS_PINCTRL)
>>> + pinctrl_select_state(dev, "default");
>>> +
I think "dev->parent && " is for making sure that it is not the root node,
while pinctrl devices never become the root.
Can we simplify the code like follows?
>>> + if (device_get_uclass_id(dev) == UCLASS_PINCTRL)
>>> + pinctrl_select_state(dev, "default");
>>> +
Otherwise, feel free to add my
Reviewed-by: Masahiro Yamada <yamada.masah...@socionext.com>
--
Best Regards
Masahiro Yamada
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