Re: [PATCH v2 7/7] hw/arm/aspeed: firework: add I2C MUXes for VR channels

["Cédric Le Goater" <clg@kaod.org>]

On 6/27/22 17:47, Jae Hyun Yoo wrote:
> Add 2-level cascaded I2C MUXes for SOC VR channels into the Firework
> machine.
> 
> Signed-off-by: Jae Hyun Yoo <quic_jaehyoo@quicinc.com>



Reviewed-by: Cédric Le Goater <clg@kaod.org>

Thanks,

C.


> ---
> Changes in v2:
> * None
> 
>   hw/arm/aspeed.c | 10 +++++++++-
>   1 file changed, 9 insertions(+), 1 deletion(-)
> 
> diff --git a/hw/arm/aspeed.c b/hw/arm/aspeed.c
> index cfc322ee30e9..1708a8f3408d 100644
> --- a/hw/arm/aspeed.c
> +++ b/hw/arm/aspeed.c
> @@ -1002,13 +1002,21 @@ static void qcom_dc_scm_bmc_i2c_init(AspeedMachineState *bmc)
>   static void qcom_dc_scm_firework_i2c_init(AspeedMachineState *bmc)
>   {
>       AspeedSoCState *soc = &bmc->soc;
> -    I2CSlave *therm_mux;
> +    I2CSlave *therm_mux, *cpuvr_mux;
>   
>       /* Create the generic DC-SCM hardware */
>       qcom_dc_scm_bmc_i2c_init(bmc);
>   
>       /* Now create the Firework specific hardware */
>   
> +    /* I2C7 CPUVR MUX */
> +    cpuvr_mux = i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 7),
> +                                        "pca9546", 0x70);
> +    i2c_slave_create_simple(pca954x_i2c_get_bus(cpuvr_mux, 0), "pca9548", 0x72);
> +    i2c_slave_create_simple(pca954x_i2c_get_bus(cpuvr_mux, 1), "pca9548", 0x72);
> +    i2c_slave_create_simple(pca954x_i2c_get_bus(cpuvr_mux, 2), "pca9548", 0x72);
> +    i2c_slave_create_simple(pca954x_i2c_get_bus(cpuvr_mux, 3), "pca9548", 0x72);
> +
>       /* I2C8 Thermal Diodes*/
>       therm_mux = i2c_slave_create_simple(aspeed_i2c_get_bus(&soc->i2c, 8),
>                                           "pca9548", 0x70);