[PATCH 1/3] i2c: mediatek: add basic driver support

[Heiko Schocher]

Hello mingming,

Am 09.09.2020 um 08:07 schrieb mingming lee:
> From: Mingming Lee <Mingming.Lee at mediatek.com>
> 
> Add MediaTek I2C basic driver
> 
> Signed-off-by: Mingming Lee <Mingming.Lee at mediatek.com>
> ---
>   drivers/i2c/Kconfig  |   9 +
>   drivers/i2c/Makefile |   1 +
>   drivers/i2c/mt_i2c.c | 619 +++++++++++++++++++++++++++++++++++++++++++++++++++
>   3 files changed, 629 insertions(+)
>   create mode 100644 drivers/i2c/mt_i2c.c

Nitpicks only:

As you introduce here new DTS bindings, can you please document them
in u-boot:/doc/device-tree-bindings/

Thanks!


[snip]
> diff --git a/drivers/i2c/mt_i2c.c b/drivers/i2c/mt_i2c.c
> new file mode 100644
> index 0000000..5badde9
> --- /dev/null
> +++ b/drivers/i2c/mt_i2c.c
> @@ -0,0 +1,619 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * MediaTek I2C Interface driver
> + *
> + * Copyright (C) 2020 MediaTek Inc.
> + * Author: Mingming Lee <Mingming.Lee at mediatek.com>
> + */
> +
> +#include <asm/cache.h>
> +#include <asm/io.h>
> +#include <common.h>
> +#include <clk.h>
> +#include <dm.h>
> +#include <i2c.h>
> +#include <linux/delay.h>
> +
> +#define I2C_OK			0
> +#define EINVAL_I2C		22  /* invalid argument */
> +#define ETIMEDOUT_I2C		110 /* connection timed out */
> +#define EACK_I2C		6   /* remote I/O error */

You could use defines from include/linux/errno.h ?

[snip]


Reviewed-by: Heiko Schocher <hs at denx.de>

Thanks!

bye,
Heiko
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