Re: [PATCH v3 2/2] media:st-mipid02: MIPID02 CSI-2 to PARALLEL bridge driver

From: Mickael GUENE
Date: Tue Mar 26 2019 - 10:37:28 EST


Sakari,

>> +static int bpp_from_code(__u32 code)
>> +{
>> + switch (code) {
>> + case MEDIA_BUS_FMT_SBGGR8_1X8:
>> + case MEDIA_BUS_FMT_SGBRG8_1X8:
>> + case MEDIA_BUS_FMT_SGRBG8_1X8:
>> + case MEDIA_BUS_FMT_SRGGB8_1X8:
>> + return 8;
>> + case MEDIA_BUS_FMT_SBGGR10_1X10:
>> + case MEDIA_BUS_FMT_SGBRG10_1X10:
>> + case MEDIA_BUS_FMT_SGRBG10_1X10:
>> + case MEDIA_BUS_FMT_SRGGB10_1X10:
>> + return 10;
>> + case MEDIA_BUS_FMT_SBGGR12_1X12:
>> + case MEDIA_BUS_FMT_SGBRG12_1X12:
>> + case MEDIA_BUS_FMT_SGRBG12_1X12:
>> + case MEDIA_BUS_FMT_SRGGB12_1X12:
>> + return 12;
>> + case MEDIA_BUS_FMT_UYVY8_2X8:
>
> This is good for the parallel bus, but on CSI-2 side you should have
> MEDIA_BUS_FMT_UYVY8_1X16 instead. This isn't technically correct for a
> serial bus, but the custom is to use the one sample / pixel formats on the
> serial busses.
>
Should MEDIA_BUS_FMT_BGR888_1X24 be something like
MEDIA_BUS_FMT_BGR888_3X8 for parallel output bus ?

Rgs
Mickael