On Tue 28 Aug 06:38 PDT 2018, Amit Kucheria wrote:

> We've earlier added support to split the register address space into TM
> and SROT regions.
> 
> Split up the regmap address space into two for the remaining platforms
> that have a similar register layout and make corresponding changes to
> the get_temp_common() function used by these platforms.
> 
> Since tsens-common.c/init_common() currently only registers one address
> space, the order is important (TM before SROT).  This is OK since the
> code doesn't really use the SROT functionality yet.
> 

Having a single patch touching both code and dts will cause merge issues
as this patch travel upstream. Even more arm-soc expects arm and arm64
dts changes to come in different pull requests.

Please split it so that the three pieces can be picked up by respective
maintainer.

> Signed-off-by: Amit Kucheria <[email protected]>
> Reviewed-by: Matthias Kaehlcke <[email protected]>
> ---
>  arch/arm/boot/dts/qcom-msm8974.dtsi   | 5 +++--
>  arch/arm64/boot/dts/qcom/msm8916.dtsi | 5 +++--
>  drivers/thermal/qcom/tsens-common.c   | 5 +++--
>  3 files changed, 9 insertions(+), 6 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/qcom-msm8974.dtsi 
> b/arch/arm/boot/dts/qcom-msm8974.dtsi
> index d9019a49b292..56dbbf788d15 100644
> --- a/arch/arm/boot/dts/qcom-msm8974.dtsi
> +++ b/arch/arm/boot/dts/qcom-msm8974.dtsi
> @@ -427,9 +427,10 @@
>                       };
>               };
>  
> -             tsens: thermal-sensor@fc4a8000 {
> +             tsens: thermal-sensor@fc4a9000 {
>                       compatible = "qcom,msm8974-tsens";
> -                     reg = <0xfc4a8000 0x2000>;
> +                     reg = <0xfc4a9000 0x1000>, /* TM */
> +                           <0xfc4a8000 0x1000>; /* SROT */
>                       nvmem-cells = <&tsens_calib>, <&tsens_backup>;
>                       nvmem-cell-names = "calib", "calib_backup";
>                       #thermal-sensor-cells = <1>;
> diff --git a/arch/arm64/boot/dts/qcom/msm8916.dtsi 
> b/arch/arm64/boot/dts/qcom/msm8916.dtsi
> index 7b32b8990d62..6a277fce3333 100644
> --- a/arch/arm64/boot/dts/qcom/msm8916.dtsi
> +++ b/arch/arm64/boot/dts/qcom/msm8916.dtsi
> @@ -761,9 +761,10 @@
>                       };
>               };
>  
> -             tsens: thermal-sensor@4a8000 {
> +             tsens: thermal-sensor@4a9000 {
>                       compatible = "qcom,msm8916-tsens";
> -                     reg = <0x4a8000 0x2000>;
> +                     reg = <0x4a9000 0x1000>, /* TM */
> +                           <0x4a8000 0x1000>; /* SROT */
>                       nvmem-cells = <&tsens_caldata>, <&tsens_calsel>;
>                       nvmem-cell-names = "calib", "calib_sel";
>                       #thermal-sensor-cells = <1>;
> diff --git a/drivers/thermal/qcom/tsens-common.c 
> b/drivers/thermal/qcom/tsens-common.c
> index 6207d8d92351..478739543bbc 100644
> --- a/drivers/thermal/qcom/tsens-common.c
> +++ b/drivers/thermal/qcom/tsens-common.c
> @@ -21,7 +21,7 @@
>  #include <linux/regmap.h>
>  #include "tsens.h"
>  
> -#define S0_ST_ADDR           0x1030
> +#define STATUS_OFFSET                0x30
>  #define SN_ADDR_OFFSET               0x4
>  #define SN_ST_TEMP_MASK              0x3ff
>  #define CAL_DEGC_PT1         30
> @@ -107,8 +107,9 @@ int get_temp_common(struct tsens_device *tmdev, int id, 
> int *temp)
>       unsigned int status_reg;
>       int last_temp = 0, ret;
>  
> -     status_reg = S0_ST_ADDR + s->hw_id * SN_ADDR_OFFSET;
> +     status_reg = tmdev->tm_offset + STATUS_OFFSET + s->hw_id * 
> SN_ADDR_OFFSET;

Wasn't this change part of the previous set that introduced the
tm_offset? If not how did we handle the fact that tmdev->map is already
indented 0x1000 bytes?

Both changes looks good, but I'm worries about the order of things.

Regards,
Bjorn

>       ret = regmap_read(tmdev->map, status_reg, &code);
> +
>       if (ret)
>               return ret;
>       last_temp = code & SN_ST_TEMP_MASK;
> -- 
> 2.17.1
> 

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