[PATCH 1/7] I2C: i.MX: Add early i2c support for i.MX6

[Marco Felsch]

Hi John,

thanks for your patch.

albeit it is obvious we tend to have a small commit message here. The
code change lgtm.

Regards,
  Marco

On 23-01-22, John Watts wrote:
> Signed-off-by: John Watts <contact at jookia.org>
> ---
>  drivers/i2c/busses/i2c-imx-early.c | 14 ++++++++++++++
>  include/pbl/i2c.h                  |  1 +
>  2 files changed, 15 insertions(+)
> 
> diff --git a/drivers/i2c/busses/i2c-imx-early.c b/drivers/i2c/busses/i2c-imx-early.c
> index 4e0f7e517d..6c8bdc7904 100644
> --- a/drivers/i2c/busses/i2c-imx-early.c
> +++ b/drivers/i2c/busses/i2c-imx-early.c
> @@ -303,6 +303,20 @@ struct pbl_i2c *ls1046_i2c_init(void __iomem *regs)
>  	return &fsl_i2c.i2c;
>  }
>  
> +struct pbl_i2c *imx6_i2c_early_init(void __iomem *regs)
> +{
> +	fsl_i2c.regs = regs;
> +	fsl_i2c.regshift = 2;
> +	fsl_i2c.i2cr_ien_opcode = I2CR_IEN_OPCODE_1;
> +	fsl_i2c.i2sr_clr_opcode = I2SR_CLR_OPCODE_W0C;
> +	/* Divider for ~100kHz when coming from the ROM */
> +	fsl_i2c.ifdr = 0x36;
> +
> +	fsl_i2c.i2c.xfer = i2c_fsl_xfer;
> +
> +	return &fsl_i2c.i2c;
> +}
> +
>  struct pbl_i2c *imx8m_i2c_early_init(void __iomem *regs)
>  {
>  	fsl_i2c.regs = regs;
> diff --git a/include/pbl/i2c.h b/include/pbl/i2c.h
> index d9910f531f..32e456d46b 100644
> --- a/include/pbl/i2c.h
> +++ b/include/pbl/i2c.h
> @@ -16,6 +16,7 @@ static inline int pbl_i2c_xfer(struct pbl_i2c *i2c,
>  }
>  
>  struct pbl_i2c *imx8m_i2c_early_init(void __iomem *regs);
> +struct pbl_i2c *imx6_i2c_early_init(void __iomem *regs);
>  struct pbl_i2c *ls1046_i2c_init(void __iomem *regs);
>  
>  static inline int i2c_dev_probe(struct pbl_i2c *i2c, int addr, bool onebyte)
> -- 
> 2.39.0
> 
> 
>