[U-Boot] [dm/next PATCH v1] dm: qspi fix claim bus and release bus

Simon Glass sjg at chromium.org
Thu Apr 23 17:17:37 CEST 2015


Hi Peng,

On 15 April 2015 at 03:50, Peng Fan <Peng.Fan at freescale.com> wrote:
> Add missed people.
>
>
> On 4/14/2015 1:19 PM, Peng Fan wrote:
>>
>> For fsl_qspi_claim_bus and fsl_qspi_release_bus, the input parameter
>> "struct udevice *dev" represents device: "qspi[x]: qspi@[address] {...}".
>> Since "dev" already represents the qspi controller, use its parent to
>> get platdata and get 'priv' is wrong.
>>
>> After applying this patch, qspi flashes can be correctly probed.

Is this patch still needed after this patch?

http://patchwork.ozlabs.org/patch/462595/

>>
>> CC: Simon Glass <sjg at chromium.org>
>> CC: Jagannadha Sutradharudu Teki <jagannadh.teki at gmail.com>
>> CC: Haikun Wang <Haikun.Wang at freescale.com>
>> Signed-off-by: Peng Fan <Peng.Fan at freescale.com>
>> ---
>>
>> Hi,
>>
>> This patch is based on dm/next branch.
>>
>> Regards,
>> Peng.
>>
>>   drivers/spi/fsl_qspi.c | 10 +++-------
>>   1 file changed, 3 insertions(+), 7 deletions(-)
>>
>> diff --git a/drivers/spi/fsl_qspi.c b/drivers/spi/fsl_qspi.c
>> index 868df5f..04f1801 100644
>> --- a/drivers/spi/fsl_qspi.c
>> +++ b/drivers/spi/fsl_qspi.c
>> @@ -1044,11 +1044,9 @@ static int fsl_qspi_xfer(struct udevice *dev,
>> unsigned int bitlen,
>>   static int fsl_qspi_claim_bus(struct udevice *dev)
>>   {
>>         struct fsl_qspi_priv *priv;
>> -       struct udevice *bus;
>> -       struct dm_spi_slave_platdata *slave_plat =
>> dev_get_parent_platdata(dev);
>> +       struct dm_spi_slave_platdata *slave_plat = dev_get_platdata(dev);
>>   -     bus = dev->parent;
>> -       priv = dev_get_priv(bus);
>> +       priv = dev_get_priv(dev);
>>         priv->cur_amba_base =
>>                 priv->amba_base[0] + FSL_QSPI_FLASH_SIZE * slave_plat->cs;
>> @@ -1061,10 +1059,8 @@ static int fsl_qspi_claim_bus(struct udevice *dev)
>>   static int fsl_qspi_release_bus(struct udevice *dev)
>>   {
>>         struct fsl_qspi_priv *priv;
>> -       struct udevice *bus;
>>   -     bus = dev->parent;
>> -       priv = dev_get_priv(bus);
>> +       priv = dev_get_priv(dev);
>>         qspi_module_disable(priv, 1);
>>
>
>

Regards,
Simon


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