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 --- a/drivers/spi/spi-cadence-quadspi.c
  27 +++ b/drivers/spi/spi-cadence-quadspi.c
  28 @@ -1245,10 +1245,7 @@ static bool cqspi_supports_mem_op(struct
  29                 return false;
  30         }
  31
  32 -       if (all_true)
  33 -               return spi_mem_dtr_supports_op(mem, op);
  34 -       else
  35 -               return spi_mem_default_supports_op(mem, op);
  36 +       return spi_mem_default_supports_op(mem, op);
  37  }
  38
  39  static int cqspi_of_get_flash_pdata(struct platform_device *pdev,
  40 --- a/drivers/spi/spi-mem.c
  41 +++ b/drivers/spi/spi-mem.c
  42 @@ -160,16 +160,6 @@ static bool spi_mem_check_buswidth(struc
  43         return true;
  44  }
  45
  46 -bool spi_mem_dtr_supports_op(struct spi_mem *mem,
  47 -                            const struct spi_mem_op *op)
  48 -{
  49 -       if (op->cmd.nbytes != 2)
  50 -               return false;
  51 -
  52 -       return spi_mem_check_buswidth(mem, op);
  53 -}
  54 -EXPORT_SYMBOL_GPL(spi_mem_dtr_supports_op);
  55 -
  56  bool spi_mem_default_supports_op(struct spi_mem *mem,
  57                                  const struct spi_mem_op *op)
  58  {
  59 --- a/drivers/spi/spi-mxic.c
  60 +++ b/drivers/spi/spi-mxic.c
  61 @@ -331,8 +331,6 @@ static int mxic_spi_data_xfer(struct mxi
  62  static bool mxic_spi_mem_supports_op(struct spi_mem *mem,
  63                                      const struct spi_mem_op *op)
  64  {
  65 -       bool all_false;
  66 -
  67         if (op->data.buswidth > 8 || op->addr.buswidth > 8 ||
  68             op->dummy.buswidth > 8 || op->cmd.buswidth > 8)
  69                 return false;
  70 @@ -344,13 +342,7 @@ static bool mxic_spi_mem_supports_op(str
  71         if (op->addr.nbytes > 7)
  72                 return false;
  73
  74 -       all_false = !op->cmd.dtr && !op->addr.dtr && !op->dummy.dtr &&
  75 -                   !op->data.dtr;
  76 -
  77 -       if (all_false)
  78 -               return spi_mem_default_supports_op(mem, op);
  79 -       else
  80 -               return spi_mem_dtr_supports_op(mem, op);
  81 +       return spi_mem_default_supports_op(mem, op);
  82  }
  83
  84  static int mxic_spi_mem_exec_op(struct spi_mem *mem,
  85 --- a/include/linux/spi/spi-mem.h
  86 +++ b/include/linux/spi/spi-mem.h
  87 @@ -330,10 +330,6 @@ void spi_controller_dma_unmap_mem_op_dat
  88
  89  bool spi_mem_default_supports_op(struct spi_mem *mem,
  90                                  const struct spi_mem_op *op);
  91 -
  92 -bool spi_mem_dtr_supports_op(struct spi_mem *mem,
  93 -                            const struct spi_mem_op *op);
  94 -
  95  #else
  96  static inline int
  97  spi_controller_dma_map_mem_op_data(struct spi_controller *ctlr,
  98 @@ -356,13 +352,6 @@ bool spi_mem_default_supports_op(struct
  99  {
 100         return false;
 101  }
 102 -
 103 -static inline
 104 -bool spi_mem_dtr_supports_op(struct spi_mem *mem,
 105 -                            const struct spi_mem_op *op)
 106 -{
 107 -       return false;
 108 -}
 109  #endif /* CONFIG_SPI_MEM */
 110
 111  int spi_mem_adjust_op_size(struct spi_mem *mem, struct spi_mem_op *op);