spi: core: Ignore unsupported spi-[tr]x-bus-width property values

Rejecting unsupported values of spi-tx-bus-width and spi-rx-bus-width
may break compatibility with future DTs. Just ignore them, falling back
to Single SPI Transfers.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Signed-off-by: Mark Brown <broonie@linaro.org>

1 files changed, 8 insertions, 10 deletions

diff --git a/drivers/spi/spi.c b/drivers/spi/spi.c
index f01cbb41e6ca..147e0707f43f 100644
--- a/drivers/spi/spi.c
+++ b/drivers/spi/spi.c
@@ -1247,11 +1247,10 @@ static void of_register_spi_devices(struct spi_master *master)
                                 spi->mode |= SPI_TX_QUAD;
                                 break;
                         default:
-                                dev_err(&master->dev,
-                                        "spi-tx-bus-width %d not supported\n",
-                                        value);
-                                spi_dev_put(spi);
-                                continue;
+                                dev_warn(&master->dev,
+                                         "spi-tx-bus-width %d not supported\n",
+                                         value);
+                                break;
                         }
                 }
 
@@ -1266,11 +1265,10 @@ static void of_register_spi_devices(struct spi_master *master)
                                 spi->mode |= SPI_RX_QUAD;
                                 break;
                         default:
-                                dev_err(&master->dev,
-                                        "spi-rx-bus-width %d not supported\n",
-                                        value);
-                                spi_dev_put(spi);
-                                continue;
+                                dev_warn(&master->dev,
+                                         "spi-rx-bus-width %d not supported\n",
+                                         value);
+                                break;
                         }
                 }