spi: rpc: Add support for operation without clock framework

Add ifdeffery to allow operation without the clock framework
enabled. This is required on RZ/A1, as it does not have clock
driver yet.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Chris Brandt <chris.brandt@renesas.com>
Cc: Jagan Teki <jagan@amarulasolutions.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>

diff --git a/drivers/spi/Kconfig b/drivers/spi/Kconfig
index 2830f76..dc3e23f 100644 (file)
--- a/drivers/spi/Kconfig
+++ b/drivers/spi/Kconfig
@@ -173,7 +173,7 @@ config PL022_SPI
 
 config RENESAS_RPC_SPI
        bool "Renesas RPC SPI driver"
-       depends on RCAR_GEN3
+       depends on RCAR_GEN3 || RZA1
        imply SPI_FLASH_BAR
        help
          Enable the Renesas RPC SPI driver, used to access SPI NOR flash

diff --git a/drivers/spi/renesas_rpc_spi.c b/drivers/spi/renesas_rpc_spi.c
index bec9095..bb2e774 100644 (file)
--- a/drivers/spi/renesas_rpc_spi.c
+++ b/drivers/spi/renesas_rpc_spi.c
@@ -409,27 +409,30 @@ static int rpc_spi_probe(struct udevice *dev)
 
        priv->regs = plat->regs;
        priv->extr = plat->extr;
-
+#if CONFIG_IS_ENABLED(CLK)
        clk_enable(&priv->clk);
-
+#endif
        return 0;
 }
 
 static int rpc_spi_ofdata_to_platdata(struct udevice *bus)
 {
        struct rpc_spi_platdata *plat = dev_get_platdata(bus);
-       struct rpc_spi_priv *priv = dev_get_priv(bus);
-       int ret;
 
        plat->regs = dev_read_addr_index(bus, 0);
        plat->extr = dev_read_addr_index(bus, 1);
 
+#if CONFIG_IS_ENABLED(CLK)
+       struct rpc_spi_priv *priv = dev_get_priv(bus);
+       int ret;
+
        ret = clk_get_by_index(bus, 0, &priv->clk);
        if (ret < 0) {
                printf("%s: Could not get clock for %s: %d\n",
                       __func__, bus->name, ret);
                return ret;
        }
+#endif
 
        plat->freq = dev_read_u32_default(bus, "spi-max-freq", 50000000);
 
@@ -448,6 +451,7 @@ static const struct udevice_id rpc_spi_ids[] = {
        { .compatible = "renesas,rpc-r8a77965" },
        { .compatible = "renesas,rpc-r8a77970" },
        { .compatible = "renesas,rpc-r8a77995" },
+       { .compatible = "renesas,rpc-r7s72100" },
        { }
 };