Merge remote-tracking branches 'spi/topic/qup', 'spi/topic/rockchip', 'spi/topic...

diff --cc drivers/spi/spi-qup.c
index 2b2c359f5a501da32a38af38cfe0c0956b0e23c9,4b5fc4d67b6e3ae8c8525866b46c26a242db412a,ff9cdbdb6672371df54b6c59ce54579a46758602,ff9cdbdb6672371df54b6c59ce54579a46758602,ff9cdbdb6672371df54b6c59ce54579a46758602,e7fb5a0d2e8dc35900099cbc471f66b58b3fa088..810a7fae347988a7d9dc1101586234b8ef8efc77
--- 1/drivers/spi/spi-qup.c
--- 2/drivers/spi/spi-qup.c
--- 3/drivers/spi/spi-qup.c
--- 4/drivers/spi/spi-qup.c
--- 5/drivers/spi/spi-qup.c
--- 6/drivers/spi/spi-qup.c
+++ b/drivers/spi/spi-qup.c
@@@@@@@ -337,8 -470,8 -337,8 -337,8 -337,8 -337,8 +470,8 @@@@@@@ spi_qup_get_mode(struct spi_master *mas
      static int spi_qup_io_config(struct spi_device *spi, struct spi_transfer *xfer)
      {
        struct spi_qup *controller = spi_master_get_devdata(spi->master);
     -  u32 config, iomode, mode;
     -  int ret, n_words, w_size;
     +  u32 config, iomode, mode, control;
- ---   int ret, n_words, w_size;
+ ++++  int ret, n_words;
      
        if (spi->mode & SPI_LOOP && xfer->len > controller->in_fifo_sz) {
                dev_err(controller->dev, "too big size for loopback %d > %d\n",
@@@@@@@ -358,17 -491,10 -358,17 -358,17 -358,17 -358,17 +491,10 @@@@@@@
                return -EIO;
        }
      
- ----  w_size = 4;
- ----  if (xfer->bits_per_word <= 8)
- ----          w_size = 1;
- ----  else if (xfer->bits_per_word <= 16)
- ----          w_size = 2;
-     
-       n_words = xfer->len / w_size;
-       controller->w_size = w_size;
+ ++++  mode = spi_qup_get_mode(spi->master, xfer);
+ ++++  n_words = controller->n_words;
      
  ----  n_words = xfer->len / w_size;
  ----  controller->w_size = w_size;
  ----
- ----  if (n_words <= (controller->in_fifo_sz / sizeof(u32))) {
- ----          mode = QUP_IO_M_MODE_FIFO;
+ ++++  if (mode == QUP_IO_M_MODE_FIFO) {
                writel_relaxed(n_words, controller->base + QUP_MX_READ_CNT);
                writel_relaxed(n_words, controller->base + QUP_MX_WRITE_CNT);
                /* must be zero for FIFO */

diff --cc drivers/spi/spi-rockchip.c
index 5e4e52cbe0537b077e5283a88601985da6bd80a2,1a777dc261d6f5bfa2e56dc437fb7d957d2b0891,f65384b3417f90f1b97c2b0990ae296d323bce04,1a777dc261d6f5bfa2e56dc437fb7d957d2b0891,1a777dc261d6f5bfa2e56dc437fb7d957d2b0891,daabbabd26b051744fcc07417c53f4d0a8b03a4f..68e7efeb9a27a6751d49ad3a6583b2fe5d97a811
--- 1/drivers/spi/spi-rockchip.c
--- 2/drivers/spi/spi-rockchip.c
--- 3/drivers/spi/spi-rockchip.c
--- 4/drivers/spi/spi-rockchip.c
--- 5/drivers/spi/spi-rockchip.c
--- 6/drivers/spi/spi-rockchip.c
+++ b/drivers/spi/spi-rockchip.c
@@@@@@@ -519,9 -519,9 -527,23 -519,9 -519,9 -517,9 +527,23 @@@@@@@ static void rockchip_spi_config(struct 
        }
      
        /* div doesn't support odd number */
 -----  div = max_t(u32, rs->max_freq / rs->speed, 1);
 +++++  div = DIV_ROUND_UP(rs->max_freq, rs->speed);
        div = (div + 1) & 0xfffe;
      
++ +++  /* Rx sample delay is expressed in parent clock cycles (max 3) */
++ +++  rsd = DIV_ROUND_CLOSEST(rs->rsd_nsecs * (rs->max_freq >> 8),
++ +++                          1000000000 >> 8);
++ +++  if (!rsd && rs->rsd_nsecs) {
++ +++          pr_warn_once("rockchip-spi: %u Hz are too slow to express %u ns delay\n",
++ +++                       rs->max_freq, rs->rsd_nsecs);
++ +++  } else if (rsd > 3) {
++ +++          rsd = 3;
++ +++          pr_warn_once("rockchip-spi: %u Hz are too fast to express %u ns delay, clamping at %u ns\n",
++ +++                       rs->max_freq, rs->rsd_nsecs,
++ +++                       rsd * 1000000000U / rs->max_freq);
++ +++  }
++ +++  cr0 |= rsd << CR0_RSD_OFFSET;
++ +++
        writel_relaxed(cr0, rs->regs + ROCKCHIP_SPI_CTRLR0);
      
        writel_relaxed(rs->len - 1, rs->regs + ROCKCHIP_SPI_CTRLR1);

diff --cc drivers/spi/spi-sc18is602.c
Simple merge