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

[Peng Fan <Peng.Fan@freescale.com>]

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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.
>
> CC: Simon Glass <sjg@chromium.org>
> CC: Jagannadha Sutradharudu Teki <jagannadh.teki@gmail.com>
> CC: Haikun Wang <Haikun.Wang@freescale.com>
> Signed-off-by: Peng Fan <Peng.Fan@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);
>