[2/7] soc: qcom: geni: move struct geni_wrapper to header

I2C geni driver needs to access struct geni_wrapper, so move it to
header.

Signed-off-by: Vinod Koul <vkoul@kernel.org>
---
 drivers/soc/qcom/qcom-geni-se.c | 15 ---------------
 include/linux/qcom-geni-se.h    | 15 +++++++++++++++
 2 files changed, 15 insertions(+), 15 deletions(-)

On Mon 11 Jan 09:16 CST 2021, Vinod Koul wrote:

> I2C geni driver needs to access struct geni_wrapper, so move it to
> header.
> 

Please tell me more!

Glanced through the other patches and the only user I can find it in
patch 5 where you use this to get the struct device * of the wrapper.

At least in the DT case this would be [SE]->dev->parent, perhaps we
can't rely on this due to ACPI?

Regards,
Bjorn

> Signed-off-by: Vinod Koul <vkoul@kernel.org>
> ---
>  drivers/soc/qcom/qcom-geni-se.c | 15 ---------------
>  include/linux/qcom-geni-se.h    | 15 +++++++++++++++
>  2 files changed, 15 insertions(+), 15 deletions(-)
> 
> diff --git a/drivers/soc/qcom/qcom-geni-se.c b/drivers/soc/qcom/qcom-geni-se.c
> index 285ed86c2bab..a3868228ea05 100644
> --- a/drivers/soc/qcom/qcom-geni-se.c
> +++ b/drivers/soc/qcom/qcom-geni-se.c
> @@ -79,21 +79,6 @@
>   */
>  
>  #define MAX_CLK_PERF_LEVEL 32
> -#define NUM_AHB_CLKS 2
> -
> -/**
> - * struct geni_wrapper - Data structure to represent the QUP Wrapper Core
> - * @dev:		Device pointer of the QUP wrapper core
> - * @base:		Base address of this instance of QUP wrapper core
> - * @ahb_clks:		Handle to the primary & secondary AHB clocks
> - * @to_core:		Core ICC path
> - */
> -struct geni_wrapper {
> -	struct device *dev;
> -	void __iomem *base;
> -	struct clk_bulk_data ahb_clks[NUM_AHB_CLKS];
> -	struct geni_icc_path to_core;
> -};
>  
>  static const char * const icc_path_names[] = {"qup-core", "qup-config",
>  						"qup-memory"};
> diff --git a/include/linux/qcom-geni-se.h b/include/linux/qcom-geni-se.h
> index e3f4b16040d9..cb4e40908f9f 100644
> --- a/include/linux/qcom-geni-se.h
> +++ b/include/linux/qcom-geni-se.h
> @@ -38,6 +38,21 @@ struct geni_icc_path {
>  	unsigned int avg_bw;
>  };
>  
> +#define NUM_AHB_CLKS 2
> +
> +/**
> + * @struct geni_wrapper - Data structure to represent the QUP Wrapper Core
> + * @dev:		Device pointer of the QUP wrapper core
> + * @base:		Base address of this instance of QUP wrapper core
> + * @ahb_clks:		Handle to the primary & secondary AHB clocks
> + */
> +struct geni_wrapper {
> +	struct device *dev;
> +	void __iomem *base;
> +	struct clk_bulk_data ahb_clks[NUM_AHB_CLKS];
> +	struct geni_icc_path to_core;
> +};
> +
>  /**
>   * struct geni_se - GENI Serial Engine
>   * @base:		Base Address of the Serial Engine's register block
> -- 
> 2.26.2
>

On 11-01-21, 09:34, Bjorn Andersson wrote:
> On Mon 11 Jan 09:16 CST 2021, Vinod Koul wrote:
> 
> > I2C geni driver needs to access struct geni_wrapper, so move it to
> > header.
> > 
> 
> Please tell me more!
> 
> Glanced through the other patches and the only user I can find it in
> patch 5 where you use this to get the struct device * of the wrapper.

That is correct. The dma mapping needs to be done with SE device.

> At least in the DT case this would be [SE]->dev->parent, perhaps we
> can't rely on this due to ACPI?

I would have missed that then, but I somehow recall trying that.. Though
I have not looked into ACPI..

Given that we would need to worry about ACPI, do you recommend using
parent or keeping this