Commit 16e0c247 authored by Sam Protsenko's avatar Sam Protsenko Committed by Sylwester Nawrocki
Browse files

dt-bindings: clock: Add bindings for Exynos850 CMU_APM 



CMU_APM generates clocks for APM IP-core (Active Power Management). In
particular it generates RTC clocks, which are needed to enable rtc-s3c
driver on Exynos850 SoC.

Add clock indices and binding documentation for CMU_APM.

Signed-off-by: default avatarSam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: default avatarSylwester Nawrocki <s.nawrocki@samsung.com>
Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Reviewed-by: default avatarRob Herring <robh@kernel.org>
Acked-by: default avatarChanwoo Choi <cw00.choi@samsung.com>
Link: https://lore.kernel.org/r/20211121232741.6967-2-semen.protsenko@linaro.org
parent ac48ea3b

Documentation/devicetree/bindings/clock/samsung,exynos850-clock.yaml

+19 −0
Original line number Diff line number Diff line
@@ -32,6 +32,7 @@ properties: 
  compatible:

    enum:

      - samsung,exynos850-cmu-top

      - samsung,exynos850-cmu-apm

      - samsung,exynos850-cmu-core

      - samsung,exynos850-cmu-dpu

      - samsung,exynos850-cmu-hsi
@@ -68,6 +69,24 @@ allOf: 
          items:

            - const: oscclk



  - if:

      properties:

        compatible:

          contains:

            const: samsung,exynos850-cmu-apm



    then:

      properties:

        clocks:

          items:

            - description: External reference clock (26 MHz)

            - description: CMU_APM bus clock (from CMU_TOP)



        clock-names:

          items:

            - const: oscclk

            - const: dout_clkcmu_apm_bus



  - if:

      properties:

        compatible:

include/dt-bindings/clock/exynos850.h

+28 −1
Original line number Diff line number Diff line
@@ -55,7 +55,34 @@ 
#define CLK_GOUT_PERI_BUS		43

#define CLK_GOUT_PERI_UART		44

#define CLK_GOUT_PERI_IP		45

#define TOP_NR_CLK			46

#define CLK_MOUT_CLKCMU_APM_BUS		46

#define CLK_DOUT_CLKCMU_APM_BUS		47

#define CLK_GOUT_CLKCMU_APM_BUS		48

#define TOP_NR_CLK			49



/* CMU_APM */

#define CLK_RCO_I3C_PMIC		1

#define OSCCLK_RCO_APM			2

#define CLK_RCO_APM__ALV		3

#define CLK_DLL_DCO			4

#define CLK_MOUT_APM_BUS_USER		5

#define CLK_MOUT_RCO_APM_I3C_USER	6

#define CLK_MOUT_RCO_APM_USER		7

#define CLK_MOUT_DLL_USER		8

#define CLK_MOUT_CLKCMU_CHUB_BUS	9

#define CLK_MOUT_APM_BUS		10

#define CLK_MOUT_APM_I3C		11

#define CLK_DOUT_CLKCMU_CHUB_BUS	12

#define CLK_DOUT_APM_BUS		13

#define CLK_DOUT_APM_I3C		14

#define CLK_GOUT_CLKCMU_CMGP_BUS	15

#define CLK_GOUT_CLKCMU_CHUB_BUS	16

#define CLK_GOUT_RTC_PCLK		17

#define CLK_GOUT_TOP_RTC_PCLK		18

#define CLK_GOUT_I3C_PCLK		19

#define CLK_GOUT_I3C_SCLK		20

#define CLK_GOUT_SPEEDY_PCLK		21

#define APM_NR_CLK			22



/* CMU_HSI */

#define CLK_MOUT_HSI_BUS_USER		1