ramips: fix 16 bit IO on newer cores

Signed-off-by: John Crispin <blogic@openwrt.org>
SVN-Revision: 49203

diff --git a/target/linux/ramips/patches-3.18/0061-SPI-ralink-add-mt7621-SoC-spi-driver.patch b/target/linux/ramips/patches-3.18/0061-SPI-ralink-add-mt7621-SoC-spi-driver.patch
index f3c359ed9060cf09376cc12cd388add877bff69c..d52cd2e09dddbcc275fa7f6496674c3f796f5b86 100644 (file)
--- a/target/linux/ramips/patches-3.18/0061-SPI-ralink-add-mt7621-SoC-spi-driver.patch
+++ b/target/linux/ramips/patches-3.18/0061-SPI-ralink-add-mt7621-SoC-spi-driver.patch
@@ -25,7 +25,7 @@
  obj-$(CONFIG_SPI_OC_TINY)             += spi-oc-tiny.o
 --- /dev/null
 +++ b/drivers/spi/spi-mt7621.c
-@@ -0,0 +1,390 @@
+@@ -0,0 +1,391 @@
 +/*
 + * spi-mt7621.c -- MediaTek MT7621 SPI controller driver
 + *
@@ -217,19 +217,20 @@
 +
 +      list_for_each_entry(t, &m->transfers, transfer_list) {
 +              const u8 *buf = t->tx_buf;
++              int rlen = t->len;
 +
 +              if (t->rx_buf)
-+                      rx_len += t->len;
++                      rx_len += rlen;
 +
 +              if (!buf)
 +                      continue;
 +
-+              if (WARN_ON(len + t->len > 36)) {
++              if (WARN_ON(len + rlen > 36)) {
 +                      status = -EIO;
 +                      goto msg_done;
 +              }
 +
-+              for (i = 0; i < t->len; i++, len++)
++              for (i = 0; i < rlen; i++, len++)
 +                      data[len / 4] |= buf[i] << (8 * (len & 3));
 +      }
 +
@@ -363,7 +364,7 @@
 +
 +      master->setup = mt7621_spi_setup;
 +      master->transfer_one_message = mt7621_spi_transfer_one_message;
-+      master->bits_per_word_mask = SPI_BPW_MASK(8);
++      master->bits_per_word_mask = SPI_BPW_RANGE_MASK(8, 16);
 +      master->dev.of_node = pdev->dev.of_node;
 +      master->num_chipselect = 2;
 +