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i2c: at91: print hardware version

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The probe() function now prints the hardware version of the I2C
controller.

Signed-off-by: Cyrille Pitchen <cyrille.pitchen@atmel.com>
[wsa: s/version/hw version/] for clarity]
Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>
This commit is contained in:
Cyrille Pitchen 2015-06-09 18:22:18 +02:00 committed by Wolfram Sang
parent 0ef6f3213d
commit 6ce461ea50
1 changed files with 4 additions and 1 deletions
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5
drivers/i2c/busses/i2c-at91.c
View File

@ -85,6 +85,8 @@
#define AT91_TWI_ACR_DATAL(len) ((len) & 0xff)
#define AT91_TWI_ACR_DIR BIT(8)
#define AT91_TWI_VER 0x00fc /* Version Register */
struct at91_twi_pdata {
unsigned clk_max_div;
unsigned clk_offset;
@ -908,7 +910,8 @@ static int at91_twi_probe(struct platform_device *pdev)
return rc;
}
dev_info(dev->dev, "AT91 i2c bus driver.\n");
dev_info(dev->dev, "AT91 i2c bus driver (hw version: %#x).\n",
at91_twi_read(dev, AT91_TWI_VER));
return 0;
}