linux-kernel - Re: [PATCH 00/11] NFC: pn533: bug fixes and improvements

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Message-ID: <57225411.1060304@schinagl.nl>
Date:	Thu, 28 Apr 2016 20:18:57 +0200
From:	Olliver Schinagl <oliver@...inagl.nl>
To:	linux-kernel@...r.kernel.org
Cc:	Lauro Ramos Venancio <lauro.venancio@...nbossa.org>,
	Aloisio Almeida Jr <aloisio.almeida@...nbossa.org>,
	linux-kernel@...r.kernel.org, linux-nfc@...ts.01.org,
	michael@...lmeier.at
Subject: Re: [PATCH 00/11] NFC: pn533: bug fixes and improvements

Hi Michael,

I know i'm a little late to the party, but why did you not name the 
directory/driver pn53x? I don't think we should debate wether a 533 is a 
532 with a USB added, or wether a 532 is a 533 with the USB stripped, I 
was just curious. As for the pn533-i2c, in the KConfig, I'd probably 
recommend naming it pn532 at the least though, since there is no variant 
other then USB for the 533?

Further more, I think it would be wise to add some documentation and nfc 
bindings examples.

I'm using it as a subnode of an i2c node as such:

&i2c2 {
	pinctrl-names = "default";
	pinctrl-0 = <&i2c2_pins_a>;
	status = "okay";

	pn532: pn53x@48 {
		compatible = "nxp,pn532-i2c";
		reg = <0x48>;
	};
};

But not sure if this is correct at all (I haven't gotten it to work yet, 
partly due to a burnt level shifter). For example, I'm not sure what 
other properties are needed.

Olliver

On 21-04-16 16:43, Michael Thalmeier wrote:
> Hello Samuel,
>
> This patchset fixes some major bugs in the pn533 drivers (usb and i2c) and
> improves performance of the PN532 chip by increasing its clock speed.
>
> Best Regards
> Michael
>
> Michael Thalmeier (11):
>    NFC: pn533: i2c: free irq on driver remove
>    NFC: pn533: fix order of initialization
>    NFC: pn533: i2c: do not call pn533_recv_frame with aborted commands
>    NFC: pn533: reset poll modulation list before calling nfc_targets_found
>    NFC: pn533: handle interrupted commands in pn533_recv_frame
>    NFC: pn533: usb: fix errors when poll is stopped
>    NFC: pn533: improve cmd queue handling
>    NFC: pn533: reduce output when stopping poll
>    NFC: pn533: use nfc_alloc_recv_skb for skb allocation
>    NFC: pn533: set cmd status when not set
>    nfc: pn533: increase clock frequency for PN532
>
>   drivers/nfc/pn533/i2c.c   |  20 ++++--
>   drivers/nfc/pn533/pn533.c | 154 +++++++++++++++++++++++++++++++++++++---------
>   drivers/nfc/pn533/pn533.h |   5 +-
>   drivers/nfc/pn533/usb.c   |  15 +++--
>   4 files changed, 153 insertions(+), 41 deletions(-)
>