SPDX: Convert all of our single license tags to Linux Kernel style

[u-boot] / drivers / spi / atcspi200_spi.c

diff --git a/drivers/spi/atcspi200_spi.c b/drivers/spi/atcspi200_spi.c
index 3e29df03a4da991c48c103a32afd7962d253324b..2c1d36ee6737477796ac3bdba78fac3bba43700f 100644 (file)
--- a/drivers/spi/atcspi200_spi.c
+++ b/drivers/spi/atcspi200_spi.c
@@ -1,10 +1,9 @@
+// SPDX-License-Identifier: GPL-2.0+
 /*
  * Andestech ATCSPI200 SPI controller driver.
  *
  * Copyright 2017 Andes Technology, Inc.
  * Author: Rick Chen (rick@andestech.com)
- *
- * SPDX-License-Identifier:    GPL-2.0+
  */
 
 #include <clk.h>
@@ -75,9 +74,6 @@ struct atcspi200_spi_regs {
 };
 
 struct nds_spi_slave {
-#ifndef CONFIG_DM_SPI
-       struct spi_slave slave;
-#endif
        volatile struct atcspi200_spi_regs *regs;
        int             to;
        unsigned int    freq;
@@ -286,89 +282,6 @@ static int __atcspi200_spi_xfer(struct nds_spi_slave *ns,
                return ret;
 }
 
-#ifndef CONFIG_DM_SPI
-#define to_nds_spi_slave(s) container_of(s, struct nds_spi_slave, slave)
-struct spi_slave *spi_setup_slave(unsigned int bus, unsigned int cs,
-               unsigned int max_hz, unsigned int mode)
-{
-       struct nds_spi_slave *ns;
-
-       if (!spi_cs_is_valid(bus, cs))
-               return NULL;
-
-       ns = spi_alloc_slave(struct nds_spi_slave, bus, cs);
-
-       switch (bus) {
-       case SPI0_BUS:
-                       ns->regs = (struct atcspi200_spi_regs *)SPI0_BASE;
-                       break;
-
-               case SPI1_BUS:
-                       ns->regs = (struct atcspi200_spi_regs *)SPI1_BASE;
-                       break;
-
-               default:
-                       return NULL;
-       }
-
-       ns->freq= max_hz;
-       ns->mode = mode;
-       ns->to = SPI_TIMEOUT;
-       ns->max_transfer_length = MAX_TRANSFER_LEN;
-       ns->slave.max_write_size = MAX_TRANSFER_LEN;
-       if (!ns)
-               return NULL;
-
-       return &ns->slave;
-}
-
-void spi_free_slave(struct spi_slave *slave)
-{
-       struct nds_spi_slave *ns = to_nds_spi_slave(slave);
-       free(ns);
-}
-
-void spi_init(void)
-{
-       /* do nothing */
-}
-
-int spi_claim_bus(struct spi_slave *slave)
-{
-       struct nds_spi_slave *ns = to_nds_spi_slave(slave);
-       return __atcspi200_spi_claim_bus(ns);
-}
-
-void spi_release_bus(struct spi_slave *slave)
-{
-       struct nds_spi_slave *ns = to_nds_spi_slave(slave);
-       __atcspi200_spi_release_bus(ns);
-}
-
-int spi_xfer(struct spi_slave *slave, unsigned int bitlen, const void *data_out,
-               void *data_in, unsigned long flags)
-{
-       struct nds_spi_slave *ns = to_nds_spi_slave(slave);
-       return __atcspi200_spi_xfer(ns, bitlen, data_out, data_in, flags);
-}
-
-int spi_cs_is_valid(unsigned int bus, unsigned int cs)
-{
-       return bus == 0 && cs < NSPI_MAX_CS_NUM;
-}
-
-void spi_cs_activate(struct spi_slave *slave)
-{
-       struct nds_spi_slave *ns = to_nds_spi_slave(slave);
-       __atcspi200_spi_start(ns);
-}
-
-void spi_cs_deactivate(struct spi_slave *slave)
-{
-       struct nds_spi_slave *ns = to_nds_spi_slave(slave);
-       __atcspi200_spi_stop(ns);
-}
-#else
 static int atcspi200_spi_set_speed(struct udevice *bus, uint max_hz)
 {
        struct nds_spi_slave *ns = dev_get_priv(bus);
@@ -496,4 +409,3 @@ U_BOOT_DRIVER(atcspi200_spi) = {
        .priv_auto_alloc_size = sizeof(struct nds_spi_slave),
        .probe = atcspi200_spi_probe,
 };
-#endif