Thread (26 messages) 26 messages, 5 authors, 2021-12-02

Re: [PATCH v15 3/8] mfd: simple-mfd-i2c: Enable support for the silergy,sy7636a

From: Alistair Francis <hidden>
Date: 2021-11-24 08:11:41
Also in: linux-arm-kernel, linux-hwmon, linux-pm, lkml

On Wed, Nov 24, 2021 at 1:39 AM Guenter Roeck [off-list ref] wrote:
On 11/23/21 4:14 AM, Alistair Francis wrote:
quoted
On Tue, Nov 16, 2021 at 9:10 AM Andreas Kemnade [off-list ref] wrote:
quoted
Hi,

this all creates a lot of question marks...
One of my main question is whether sy7636a = sy7636 (at least the
driver in the kobo vendor kernels does not have the "A" at the end,
whic does not necessarily mean a difference).

https://www.silergy.com/products/panel_pmic
lists only a SY7636ARMC, so chances are good that the letters were just
stripped away by the driver developers. Printing on chip package is
cryptic so it is not that helpful. It is just "BWNBDA"
I don't have a definite answer for you. But I think it's sy7636a

The page you linked to above lists SY7636ARMC as well as SY7627RMC,
SY7570RMC. That makes me think that the RMC is a generic suffix and
this actual IC is the SY7636A.
Almost all chips have an ordering suffix, indicating things like
temperature range or packaging. The datasheet says:

Ordering Information
SY7636 □(□□)□
             | Temperature Code (C)
          | Package Code (RM)
        | Optional Spec Code (A)

The datasheet otherwise refers to the chip as SY7636A.
To me this seems like SY7636A is the correct name then.

Alistair
Guenter
Keyboard shortcuts
hback out one level
jnext message in thread
kprevious message in thread
ldrill in
Escclose help / fold thread tree
?toggle this help