target/linux/mediatek/patches-5.15/120-06-v5.18-spi-spi-mem-Kill-the-spi_mem_dtr_supports_op-helper.patch

   1 From 2e5fba82e4aeb72d71230eef2541881615aaf7cf Mon Sep 17 00:00:00 2001
   2 From: Miquel Raynal <miquel.raynal@bootlin.com>
   3 Date: Thu, 27 Jan 2022 10:18:00 +0100
   4 Subject: [PATCH 06/15] spi: spi-mem: Kill the spi_mem_dtr_supports_op() helper
   5
   6 Now that spi_mem_default_supports_op() has access to the static
   7 controller capabilities (relating to memory operations), and now that
   8 these capabilities have been filled by the relevant controllers, there
   9 is no need for a specific helper checking only DTR operations, so let's
  10 just kill spi_mem_dtr_supports_op() and simply use
  11 spi_mem_default_supports_op() instead.
  12
  13 Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
  14 Reviewed-by: Pratyush Yadav <p.yadav@ti.com>
  15 Reviewed-by: Boris Brezillon <boris.brezillon@collabora.com>
  16 Reviewed-by: Tudor Ambarus <tudor.ambarus@microchip.com>
  17 Link: https://lore.kernel.org/linux-mtd/20220127091808.1043392-6-miquel.raynal@bootlin.com
  18 (cherry picked from commit 9a15efc5d5e6b5beaed0883e5bdcd0b1384c1b20)
  19 ---
  20  drivers/spi/spi-cadence-quadspi.c |  5 +----
  21  drivers/spi/spi-mem.c             | 10 ----------
  22  drivers/spi/spi-mxic.c            | 10 +---------
  23  include/linux/spi/spi-mem.h       | 11 -----------
  24  4 files changed, 2 insertions(+), 34 deletions(-)
  25
  26 diff --git a/drivers/spi/spi-cadence-quadspi.c b/drivers/spi/spi-cadence-quadspi.c
  27 index 101cc71bffa7..2c98d6a9a2aa 100644
  28 --- a/drivers/spi/spi-cadence-quadspi.c
  29 +++ b/drivers/spi/spi-cadence-quadspi.c
  30 @@ -1252,10 +1252,7 @@ static bool cqspi_supports_mem_op(struct spi_mem *mem,
  31         if (!(all_true || all_false))
  32                 return false;
  33
  34 -       if (all_true)
  35 -               return spi_mem_dtr_supports_op(mem, op);
  36 -       else
  37 -               return spi_mem_default_supports_op(mem, op);
  38 +       return spi_mem_default_supports_op(mem, op);
  39  }
  40
  41  static int cqspi_of_get_flash_pdata(struct platform_device *pdev,
  42 diff --git a/drivers/spi/spi-mem.c b/drivers/spi/spi-mem.c
  43 index 86e6597bc3dc..ed966d8129eb 100644
  44 --- a/drivers/spi/spi-mem.c
  45 +++ b/drivers/spi/spi-mem.c
  46 @@ -160,16 +160,6 @@ static bool spi_mem_check_buswidth(struct spi_mem *mem,
  47         return true;
  48  }
  49
  50 -bool spi_mem_dtr_supports_op(struct spi_mem *mem,
  51 -                            const struct spi_mem_op *op)
  52 -{
  53 -       if (op->cmd.nbytes != 2)
  54 -               return false;
  55 -
  56 -       return spi_mem_check_buswidth(mem, op);
  57 -}
  58 -EXPORT_SYMBOL_GPL(spi_mem_dtr_supports_op);
  59 -
  60  bool spi_mem_default_supports_op(struct spi_mem *mem,
  61                                  const struct spi_mem_op *op)
  62  {
  63 diff --git a/drivers/spi/spi-mxic.c b/drivers/spi/spi-mxic.c
  64 index 45889947afed..e895df09896a 100644
  65 --- a/drivers/spi/spi-mxic.c
  66 +++ b/drivers/spi/spi-mxic.c
  67 @@ -335,8 +335,6 @@ static int mxic_spi_data_xfer(struct mxic_spi *mxic, const void *txbuf,
  68  static bool mxic_spi_mem_supports_op(struct spi_mem *mem,
  69                                      const struct spi_mem_op *op)
  70  {
  71 -       bool all_false;
  72 -
  73         if (op->data.buswidth > 8 || op->addr.buswidth > 8 ||
  74             op->dummy.buswidth > 8 || op->cmd.buswidth > 8)
  75                 return false;
  76 @@ -348,13 +346,7 @@ static bool mxic_spi_mem_supports_op(struct spi_mem *mem,
  77         if (op->addr.nbytes > 7)
  78                 return false;
  79
  80 -       all_false = !op->cmd.dtr && !op->addr.dtr && !op->dummy.dtr &&
  81 -                   !op->data.dtr;
  82 -
  83 -       if (all_false)
  84 -               return spi_mem_default_supports_op(mem, op);
  85 -       else
  86 -               return spi_mem_dtr_supports_op(mem, op);
  87 +       return spi_mem_default_supports_op(mem, op);
  88  }
  89
  90  static int mxic_spi_mem_exec_op(struct spi_mem *mem,
  91 diff --git a/include/linux/spi/spi-mem.h b/include/linux/spi/spi-mem.h
  92 index 38e5d45c9842..4a1bfe689872 100644
  93 --- a/include/linux/spi/spi-mem.h
  94 +++ b/include/linux/spi/spi-mem.h
  95 @@ -330,10 +330,6 @@ void spi_controller_dma_unmap_mem_op_data(struct spi_controller *ctlr,
  96
  97  bool spi_mem_default_supports_op(struct spi_mem *mem,
  98                                  const struct spi_mem_op *op);
  99 -
 100 -bool spi_mem_dtr_supports_op(struct spi_mem *mem,
 101 -                            const struct spi_mem_op *op);
 102 -
 103  #else
 104  static inline int
 105  spi_controller_dma_map_mem_op_data(struct spi_controller *ctlr,
 106 @@ -356,13 +352,6 @@ bool spi_mem_default_supports_op(struct spi_mem *mem,
 107  {
 108         return false;
 109  }
 110 -
 111 -static inline
 112 -bool spi_mem_dtr_supports_op(struct spi_mem *mem,
 113 -                            const struct spi_mem_op *op)
 114 -{
 115 -       return false;
 116 -}
 117  #endif /* CONFIG_SPI_MEM */
 118
 119  int spi_mem_adjust_op_size(struct spi_mem *mem, struct spi_mem_op *op);
 120 --
 121 2.35.1
 122