diff options
| author | Marc Kleine-Budde <mkl@pengutronix.de> | 2020-12-16 00:17:44 +0100 |
|---|---|---|
| committer | Marc Kleine-Budde <mkl@pengutronix.de> | 2021-01-06 15:15:40 +0100 |
| commit | 1e81d5258d741ef6b0e6d865ee386dfc5fd95060 (patch) | |
| tree | a038f1d274c4a906d85018de39518190fd5d4e87 /drivers/net/can/m_can/tcan4x5x-regmap.c | |
| parent | 5584114b35f89d43db4fdaa36d7f2650fc0e1bca (diff) | |
can: tcan4x5x: add {wr,rd}_table
The memory space of the chip is not fully populated, so add a regmap range
table to document this.
Reviewed-by: Dan Murphy <dmurphy@ti.com>
Tested-by: Sean Nyekjaer <sean@geanix.com>
Link: https://lore.kernel.org/r/20201215231746.1132907-15-mkl@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'drivers/net/can/m_can/tcan4x5x-regmap.c')
| -rw-r--r-- | drivers/net/can/m_can/tcan4x5x-regmap.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/net/can/m_can/tcan4x5x-regmap.c b/drivers/net/can/m_can/tcan4x5x-regmap.c index f113881fb012..5ea162578619 100644 --- a/drivers/net/can/m_can/tcan4x5x-regmap.c +++ b/drivers/net/can/m_can/tcan4x5x-regmap.c @@ -53,10 +53,24 @@ static int tcan4x5x_regmap_read(void *context, return spi_write_then_read(spi, &addr, reg_size, (u32 *)val, val_size); } +static const struct regmap_range tcan4x5x_reg_table_yes_range[] = { + regmap_reg_range(0x0000, 0x002c), /* Device ID and SPI Registers */ + regmap_reg_range(0x0800, 0x083c), /* Device configuration registers and Interrupt Flags*/ + regmap_reg_range(0x1000, 0x10fc), /* M_CAN */ + regmap_reg_range(0x8000, 0x87fc), /* MRAM */ +}; + +static const struct regmap_access_table tcan4x5x_reg_table = { + .yes_ranges = tcan4x5x_reg_table_yes_range, + .n_yes_ranges = ARRAY_SIZE(tcan4x5x_reg_table_yes_range), +}; + static const struct regmap_config tcan4x5x_regmap = { .reg_bits = 32, .reg_stride = 4, .val_bits = 32, + .wr_table = &tcan4x5x_reg_table, + .rd_table = &tcan4x5x_reg_table, .cache_type = REGCACHE_NONE, .max_register = TCAN4X5X_MAX_REGISTER, }; |