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can: tcan4x5x: add {wr,rd}_table

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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>
This commit is contained in:
Marc Kleine-Budde 2020-12-16 00:17:44 +01:00
parent 5584114b35
commit 1e81d5258d
1 changed files with 14 additions and 0 deletions
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14
drivers/net/can/m_can/tcan4x5x-regmap.c
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@ -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,
};