Hi!

commit b04cc0d912eb80d3c438b11d96ca847c3e77e8ab upstream.

SPI Multi I/O Bus Controller on RZ/G2L SoC is almost identical to
the RPC-IF interface found on R-Car Gen3 SoC's.

This patch adds a new compatible string for the RZ/G2L family so
that the timing values on RZ/G2L can be adjusted.

index 367b0d72bf62..40bca89268c3 100644
--- a/drivers/mtd/hyperbus/rpc-if.c
+++ b/drivers/mtd/hyperbus/rpc-if.c
@@ -132,7 +132,9 @@ static int rpcif_hb_probe(struct platform_device *pdev)

rpcif_enable_rpm(&hyperbus->rpc);

- rpcif_hw_init(&hyperbus->rpc, true);
+ error = rpcif_hw_init(&hyperbus->rpc, true);
+ if (error)
+ return error;

hyperbus->hbdev.map.size = hyperbus->rpc.size;
hyperbus->hbdev.map.virt = hyperbus->rpc.dirmap;

This needs to rpcif_disable_rpm() before returning, AFAICT.

+++ b/drivers/spi/spi-rpc-if.c
@@ -156,7 +156,9 @@ static int rpcif_spi_probe(struct platform_device *pdev)
ctlr->mode_bits = SPI_CPOL | SPI_CPHA | SPI_TX_QUAD | SPI_RX_QUAD;
ctlr->flags = SPI_CONTROLLER_HALF_DUPLEX;

- rpcif_hw_init(rpc, false);
+ error = rpcif_hw_init(rpc, false);
+ if (error)
+ return error;

error = spi_register_controller(ctlr);
if (error) {

Same here.

Best regards,
Pavel

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