[PATCH 2/3 v4] spi: s3c64xx: for DT platofrms always get the chipselect info from DT node
Naveen Krishna Ch
naveenkrishna.ch at gmail.com
Thu Jun 12 09:09:06 PDT 2014
Hello Javier,
On 12 June 2014 19:36, Javier Martinez Canillas
<javier.martinez at collabora.co.uk> wrote:
> Hello Naveen,
>
> On 06/12/2014 03:13 PM, Naveen Krishna Chatradhi wrote:
>> Use controller_data structure only for the Non Device tree platforms.
>> For Device tree platforms, always derive the chipselect info from
>> DT node.
>>
>> Signed-off-by: Naveen Krishna Chatradhi <ch.naveen at samsung.com>
>> Cc: Javier Martinez Canillas <javier.martinez at collabora.co.uk>
>> Cc: Doug Anderson <dianders at chromium.org>
>> Cc: Tomasz Figa <t.figa at samsung.com>
>> ---
>> drivers/spi/spi-s3c64xx.c | 11 ++++++-----
>> 1 file changed, 6 insertions(+), 5 deletions(-)
>>
>> diff --git a/drivers/spi/spi-s3c64xx.c b/drivers/spi/spi-s3c64xx.c
>> index b888c66..f27e15d 100644
>> --- a/drivers/spi/spi-s3c64xx.c
>> +++ b/drivers/spi/spi-s3c64xx.c
>> @@ -795,14 +795,15 @@ static int s3c64xx_spi_setup(struct spi_device *spi)
>> int err;
>>
>> sdd = spi_master_get_devdata(spi->master);
>> - if (!cs && spi->dev.of_node) {
>> + if (spi->dev.of_node) {
>> cs = s3c64xx_get_slave_ctrldata(spi);
>> spi->controller_data = cs;
>> - }
>> -
>> - /* For the non-DT platforms derive chip selects from controller data */
>> - if (!spi->dev.of_node)
>> + } else {
>> + /* For the non-DT platforms derive chip
>> + * selects from controller data
>> + */
>> spi->cs_gpio = cs->line;
>> + }
>>
>> if (IS_ERR_OR_NULL(cs)) {
>> dev_err(&spi->dev, "No CS for SPI(%d)\n", spi->chip_select);
>>
>
> Personally I wouldn't have this change as a separate patch since it's too
> related to what you changed in Patch 1. But it's just a nitpick.
Patch 1/3 seems to be crowded with multiple changes.
Thought, this would keep the changes cleaner.
>
> Reviewed-by: Javier Martinez Canillas <javier.martinez at collabora.co.uk>
Thanks
>
> Best regards,
> Javier
--
Shine bright,
(: Nav :)
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