imx: imx8mq: mxc_get_clock for MXC_I2C_CLK is missing

[Peng Fan (OSS)]

On 2021/9/8 21:08, Heiko Thiery wrote:
> Hi Peng,
> 
> I faced an issue with the I2C bus speed in SPL for the imx8mq. I
> figured out that the bus frequency is set to about 1MHz. While digging
> into that I found that the clk ID for the I2C is not returned for the
> imx8mq correctly.
> 
> Can you confirm that this is missing here.

You are right! Thanks for spotting this.

Regards,
Peng.

> 
> This is what I added and now it looks better.
> 
> diff --git a/arch/arm/mach-imx/imx8m/clock_imx8mq.c
> b/arch/arm/mach-imx/imx8m/clock_imx8mq.c
> index 60e2218a3c..9e45ffd66b 100644
> --- a/arch/arm/mach-imx/imx8m/clock_imx8mq.c
> +++ b/arch/arm/mach-imx/imx8m/clock_imx8mq.c
> @@ -363,6 +363,12 @@ unsigned int mxc_get_clock(enum mxc_clock clk)
>                  return get_root_clk(USDHC1_CLK_ROOT);
>          case MXC_ESDHC2_CLK:
>                  return get_root_clk(USDHC2_CLK_ROOT);
> +       case MXC_I2C_CLK:
> +               return get_root_clk(I2C1_CLK_ROOT);
> +       case MXC_UART_CLK:
> +               return get_root_clk(UART1_CLK_ROOT);
> +       case MXC_QSPI_CLK:
> +               return get_root_clk(QSPI_CLK_ROOT);
>          default:
>                  return get_root_clk(clk);
>          }
> 
>