Commit 1e81d525 authored by Marc Kleine-Budde's avatar Marc Kleine-Budde
Browse files

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: default avatarDan Murphy <dmurphy@ti.com>
Tested-by: default avatarSean Nyekjaer <sean@geanix.com>
Link: https://lore.kernel.org/r/20201215231746.1132907-15-mkl@pengutronix.de


Signed-off-by: default avatarMarc Kleine-Budde <mkl@pengutronix.de>
parent 5584114b

drivers/net/can/m_can/tcan4x5x-regmap.c

+14 −0
Original line number Diff line number Diff line
@@ -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,

};