On Wed, May 31, 2017 at 02:19:56AM -0700, jiada_wang@xxxxxxxxxx wrote:
> From: Jiada Wang <jiada_wang@xxxxxxxxxx>
>
> ECSPI contorller for iMX53 and iMX6 has few hardware issues
> comparing to iMX51.
> The change add possibility to detect which controller is used
> to apply possible workaround and limitations.
>
> Signed-off-by: Jiada Wang <jiada_wang@xxxxxxxxxx>
> ---
> .../devicetree/bindings/spi/fsl-imx-cspi.txt | 1 +
> drivers/spi/spi-imx.c | 46 ++++++++++++++++++++--
[...]
> +
> static inline unsigned spi_imx_get_fifosize(struct spi_imx_data *d)
> {
> - return is_imx51_ecspi(d) ? 64 : 8;
> + switch (d->devtype_data->devtype) {
> + case IMX51_ECSPI:
> + case IMX53_ECSPI:
> + return 64;
> + default:
> + return 8;
> + }
> +}
> +
> +static inline bool spi_imx_has_dmamode(struct spi_imx_data *d)
> +{
> + switch (d->devtype_data->devtype) {
> + case IMX35_CSPI:
> + case IMX51_ECSPI:
> + case IMX53_ECSPI:
> + return true;
> + default:
> + return false;
> + }
> }
Please add the fifosize and DMA capability to struct spi_imx_devtype_data, this
struct was introduced to hold SoC specific informations.
Sascha
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