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    Subject[PATCH 03/10] spi: dw: Add support for client driver memory operations
    Date
    This minor change allow dw-spi drivers to register
    spi_controller_mem_ops memory operations if the platform supports it.

    Reviewed-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
    Signed-off-by: Lars Povlsen <lars.povlsen@microchip.com>
    ---
    drivers/spi/spi-dw.c | 3 +++
    drivers/spi/spi-dw.h | 2 ++
    2 files changed, 5 insertions(+)

    diff --git a/drivers/spi/spi-dw.c b/drivers/spi/spi-dw.c
    index 32997f28fa5bb..d0c611c42421e 100644
    --- a/drivers/spi/spi-dw.c
    +++ b/drivers/spi/spi-dw.c
    @@ -527,6 +527,9 @@ int dw_spi_add_host(struct device *dev, struct dw_spi *dws)
    /* Basic HW init */
    spi_hw_init(dev, dws);

    + /* Memory ops? */
    + master->mem_ops = dws->mem_ops;
    +
    if (dws->dma_ops && dws->dma_ops->dma_init) {
    ret = dws->dma_ops->dma_init(dws);
    if (ret) {
    diff --git a/drivers/spi/spi-dw.h b/drivers/spi/spi-dw.h
    index ed6e47b3f50da..8ecccbde10a20 100644
    --- a/drivers/spi/spi-dw.h
    +++ b/drivers/spi/spi-dw.h
    @@ -3,6 +3,7 @@
    #define DW_SPI_HEADER_H

    #include <linux/io.h>
    +#include <linux/spi/spi-mem.h>
    #include <linux/scatterlist.h>

    /* Register offsets */
    @@ -116,6 +117,7 @@ struct dw_spi {
    u16 bus_num;
    u16 num_cs; /* supported slave numbers */
    void (*set_cs)(struct spi_device *spi, bool enable);
    + const struct spi_controller_mem_ops *mem_ops;

    /* Current message transfer state info */
    size_t len;
    --
    2.26.2
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