clk: renesas: Rework Kconfig and Makefile logic

The goals are to:
  - Allow precise control over and automatic selection of which
    (sub)drivers are used for which SoC (which may change in the
    future),
  - Allow adding support for new SoCs easily,
  - Allow compile-testing of all (sub)drivers,
  - Keep driver selection logic in the subsystem-specific Kconfig,
    independent from the architecture-specific Kconfig (i.e. no "select"
    from arch/arm64/Kconfig.platforms), to avoid dependencies.

This is implemented by:
  - Introducing Kconfig symbols for all drivers and sub-drivers,
  - Introducing the Kconfig symbol CLK_RENESAS, which is enabled
    automatically when building for a Renesas ARM platform, and which
    enables all required drivers without interaction of the user, based
    on SoC-specific ARCH_* symbols,
  - Allowing the user to enable any Kconfig symbol manually if
    COMPILE_TEST is enabled,
  - Using the new Kconfig symbols instead of the ARCH_* symbols to
    control compilation in the Makefile,
  - Always entering drivers/clk/renesas/ during the build.

Note that currently not all (sub)drivers are enabled for
compile-testing, as they depend on independent fixes in other
subsystems.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Simon Horman <horms+renesas@verge.net.au>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
This commit is contained in:
Geert Uytterhoeven 2017-04-24 16:54:14 +02:00
parent 76394a36ef
commit 80978a4be2
4 changed files with 135 additions and 37 deletions

View File

@ -75,7 +75,7 @@ obj-$(CONFIG_COMMON_CLK_NXP) += nxp/
obj-$(CONFIG_MACH_PISTACHIO) += pistachio/
obj-$(CONFIG_COMMON_CLK_PXA) += pxa/
obj-$(CONFIG_COMMON_CLK_QCOM) += qcom/
obj-$(CONFIG_ARCH_RENESAS) += renesas/
obj-y += renesas/
obj-$(CONFIG_ARCH_ROCKCHIP) += rockchip/
obj-$(CONFIG_COMMON_CLK_SAMSUNG) += samsung/
obj-$(CONFIG_ARCH_SIRF) += sirf/

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@ -1,20 +1,115 @@
config CLK_RENESAS
bool "Renesas SoC clock support" if COMPILE_TEST && !ARCH_RENESAS
default y if ARCH_RENESAS
select CLK_EMEV2 if ARCH_EMEV2
select CLK_RZA1 if ARCH_R7S72100
select CLK_R8A73A4 if ARCH_R8A73A4
select CLK_R8A7740 if ARCH_R8A7740
select CLK_R8A7743 if ARCH_R8A7743
select CLK_R8A7745 if ARCH_R8A7745
select CLK_R8A7778 if ARCH_R8A7778
select CLK_R8A7779 if ARCH_R8A7779
select CLK_R8A7790 if ARCH_R8A7790
select CLK_R8A7791 if ARCH_R8A7791 || ARCH_R8A7793
select CLK_R8A7792 if ARCH_R8A7792
select CLK_R8A7794 if ARCH_R8A7794
select CLK_R8A7795 if ARCH_R8A7795
select CLK_R8A7796 if ARCH_R8A7796
select CLK_SH73A0 if ARCH_SH73A0
if CLK_RENESAS
# SoC
config CLK_EMEV2
bool "Emma Mobile EV2 clock support" if COMPILE_TEST
config CLK_RZA1
bool
select CLK_RENESAS_CPG_MSTP
config CLK_R8A73A4
bool
select CLK_RENESAS_CPG_MSTP
select CLK_RENESAS_DIV6
config CLK_R8A7740
bool
select CLK_RENESAS_CPG_MSTP
select CLK_RENESAS_DIV6
config CLK_R8A7743
bool
select CLK_RCAR_GEN2_CPG
config CLK_R8A7745
bool
select CLK_RCAR_GEN2_CPG
config CLK_R8A7778
bool
select CLK_RENESAS_CPG_MSTP
config CLK_R8A7779
bool
select CLK_RENESAS_CPG_MSTP
config CLK_R8A7790
bool
select CLK_RCAR_GEN2
select CLK_RENESAS_DIV6
config CLK_R8A7791
bool
select CLK_RCAR_GEN2
select CLK_RENESAS_DIV6
config CLK_R8A7792
bool
select CLK_RCAR_GEN2
config CLK_R8A7794
bool
select CLK_RCAR_GEN2
select CLK_RENESAS_DIV6
config CLK_R8A7795
bool
select CLK_RCAR_GEN3_CPG
config CLK_R8A7796
bool
select CLK_RCAR_GEN3_CPG
config CLK_SH73A0
bool
select CLK_RENESAS_CPG_MSTP
select CLK_RENESAS_DIV6
# Family
config CLK_RCAR_GEN2
bool
select CLK_RENESAS_CPG_MSTP
select CLK_RENESAS_DIV6
config CLK_RCAR_GEN2_CPG
bool
select CLK_RENESAS_CPG_MSSR
config CLK_RCAR_GEN3_CPG
bool
select CLK_RENESAS_CPG_MSSR
# Generic
config CLK_RENESAS_CPG_MSSR
bool
default y if ARCH_R8A7743
default y if ARCH_R8A7745
default y if ARCH_R8A7795
default y if ARCH_R8A7796
select CLK_RENESAS_DIV6
config CLK_RENESAS_CPG_MSTP
bool
default y if ARCH_R7S72100
default y if ARCH_R8A73A4
default y if ARCH_R8A7740
default y if ARCH_R8A7778
default y if ARCH_R8A7779
default y if ARCH_R8A7790
default y if ARCH_R8A7791
default y if ARCH_R8A7792
default y if ARCH_R8A7793
default y if ARCH_R8A7794
default y if ARCH_SH73A0
config CLK_RENESAS_DIV6
bool "DIV6 clock support" if COMPILE_TEST
endif # CLK_RENESAS

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@ -1,19 +1,22 @@
obj-$(CONFIG_ARCH_EMEV2) += clk-emev2.o
obj-$(CONFIG_ARCH_R7S72100) += clk-rz.o
obj-$(CONFIG_ARCH_R8A73A4) += clk-r8a73a4.o clk-div6.o
obj-$(CONFIG_ARCH_R8A7740) += clk-r8a7740.o clk-div6.o
obj-$(CONFIG_ARCH_R8A7743) += r8a7743-cpg-mssr.o rcar-gen2-cpg.o
obj-$(CONFIG_ARCH_R8A7745) += r8a7745-cpg-mssr.o rcar-gen2-cpg.o
obj-$(CONFIG_ARCH_R8A7778) += clk-r8a7778.o
obj-$(CONFIG_ARCH_R8A7779) += clk-r8a7779.o
obj-$(CONFIG_ARCH_R8A7790) += clk-rcar-gen2.o clk-div6.o
obj-$(CONFIG_ARCH_R8A7791) += clk-rcar-gen2.o clk-div6.o
obj-$(CONFIG_ARCH_R8A7792) += clk-rcar-gen2.o
obj-$(CONFIG_ARCH_R8A7793) += clk-rcar-gen2.o clk-div6.o
obj-$(CONFIG_ARCH_R8A7794) += clk-rcar-gen2.o clk-div6.o
obj-$(CONFIG_ARCH_R8A7795) += r8a7795-cpg-mssr.o rcar-gen3-cpg.o
obj-$(CONFIG_ARCH_R8A7796) += r8a7796-cpg-mssr.o rcar-gen3-cpg.o
obj-$(CONFIG_ARCH_SH73A0) += clk-sh73a0.o clk-div6.o
# SoC
obj-$(CONFIG_CLK_EMEV2) += clk-emev2.o
obj-$(CONFIG_CLK_RZA1) += clk-rz.o
obj-$(CONFIG_CLK_R8A73A4) += clk-r8a73a4.o
obj-$(CONFIG_CLK_R8A7740) += clk-r8a7740.o
obj-$(CONFIG_CLK_R8A7743) += r8a7743-cpg-mssr.o
obj-$(CONFIG_CLK_R8A7745) += r8a7745-cpg-mssr.o
obj-$(CONFIG_CLK_R8A7778) += clk-r8a7778.o
obj-$(CONFIG_CLK_R8A7779) += clk-r8a7779.o
obj-$(CONFIG_CLK_R8A7795) += r8a7795-cpg-mssr.o
obj-$(CONFIG_CLK_R8A7796) += r8a7796-cpg-mssr.o
obj-$(CONFIG_CLK_SH73A0) += clk-sh73a0.o
obj-$(CONFIG_CLK_RENESAS_CPG_MSSR) += renesas-cpg-mssr.o clk-div6.o
# Family
obj-$(CONFIG_CLK_RCAR_GEN2) += clk-rcar-gen2.o
obj-$(CONFIG_CLK_RCAR_GEN2_CPG) += rcar-gen2-cpg.o
obj-$(CONFIG_CLK_RCAR_GEN3_CPG) += rcar-gen3-cpg.o
# Generic
obj-$(CONFIG_CLK_RENESAS_CPG_MSSR) += renesas-cpg-mssr.o
obj-$(CONFIG_CLK_RENESAS_CPG_MSTP) += clk-mstp.o
obj-$(CONFIG_CLK_RENESAS_DIV6) += clk-div6.o

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@ -627,25 +627,25 @@ static inline int cpg_mssr_reset_controller_register(struct cpg_mssr_priv *priv)
static const struct of_device_id cpg_mssr_match[] = {
#ifdef CONFIG_ARCH_R8A7743
#ifdef CONFIG_CLK_R8A7743
{
.compatible = "renesas,r8a7743-cpg-mssr",
.data = &r8a7743_cpg_mssr_info,
},
#endif
#ifdef CONFIG_ARCH_R8A7745
#ifdef CONFIG_CLK_R8A7745
{
.compatible = "renesas,r8a7745-cpg-mssr",
.data = &r8a7745_cpg_mssr_info,
},
#endif
#ifdef CONFIG_ARCH_R8A7795
#ifdef CONFIG_CLK_R8A7795
{
.compatible = "renesas,r8a7795-cpg-mssr",
.data = &r8a7795_cpg_mssr_info,
},
#endif
#ifdef CONFIG_ARCH_R8A7796
#ifdef CONFIG_CLK_R8A7796
{
.compatible = "renesas,r8a7796-cpg-mssr",
.data = &r8a7796_cpg_mssr_info,