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    Subject[PATCH 4.19 068/639] bus: ti-sysc: Add mcasp optional clocks flag
    Date
    From: Tony Lindgren <tony@atomide.com>

    [ Upstream commit 2c63a833e4500b341a62bf97e67488909ae12086 ]

    We have OPT_CLKS_NEEDED in legacy platform data, but it's missing
    from the ti-sysc driver for device tree based configuration.

    In order to pass OPT_CLKS_NEEDED quirk flag we need to update omap4 module
    data and add a new compatible for dra7 as the module layout is different
    from sysc_regbits_omap4_mcasp.

    Fixes: 70a65240efb1 ("bus: ti-sysc: Add register bits for interconnect
    target modules")
    Cc: Mark Rutland <mark.rutland@arm.com>
    Cc: Rob Herring <robh+dt@kernel.org>
    Signed-off-by: Tony Lindgren <tony@atomide.com>
    Signed-off-by: Sasha Levin <sashal@kernel.org>
    ---
    Documentation/devicetree/bindings/bus/ti-sysc.txt | 1 +
    drivers/bus/ti-sysc.c | 11 +++++++++++
    2 files changed, 12 insertions(+)

    diff --git a/Documentation/devicetree/bindings/bus/ti-sysc.txt b/Documentation/devicetree/bindings/bus/ti-sysc.txt
    index 91dc2333af012..85a23f551f024 100644
    --- a/Documentation/devicetree/bindings/bus/ti-sysc.txt
    +++ b/Documentation/devicetree/bindings/bus/ti-sysc.txt
    @@ -35,6 +35,7 @@ Required standard properties:
    "ti,sysc-omap3-sham"
    "ti,sysc-omap-aes"
    "ti,sysc-mcasp"
    + "ti,sysc-dra7-mcasp"
    "ti,sysc-usb-host-fs"
    "ti,sysc-dra7-mcan"

    diff --git a/drivers/bus/ti-sysc.c b/drivers/bus/ti-sysc.c
    index b6f63e7620214..926c83398b27b 100644
    --- a/drivers/bus/ti-sysc.c
    +++ b/drivers/bus/ti-sysc.c
    @@ -1593,6 +1593,16 @@ static const struct sysc_regbits sysc_regbits_omap4_mcasp = {
    static const struct sysc_capabilities sysc_omap4_mcasp = {
    .type = TI_SYSC_OMAP4_MCASP,
    .regbits = &sysc_regbits_omap4_mcasp,
    + .mod_quirks = SYSC_QUIRK_OPT_CLKS_NEEDED,
    +};
    +
    +/*
    + * McASP found on dra7 and later
    + */
    +static const struct sysc_capabilities sysc_dra7_mcasp = {
    + .type = TI_SYSC_OMAP4_SIMPLE,
    + .regbits = &sysc_regbits_omap4_simple,
    + .mod_quirks = SYSC_QUIRK_OPT_CLKS_NEEDED,
    };

    /*
    @@ -1821,6 +1831,7 @@ static const struct of_device_id sysc_match[] = {
    { .compatible = "ti,sysc-omap3-sham", .data = &sysc_omap3_sham, },
    { .compatible = "ti,sysc-omap-aes", .data = &sysc_omap3_aes, },
    { .compatible = "ti,sysc-mcasp", .data = &sysc_omap4_mcasp, },
    + { .compatible = "ti,sysc-dra7-mcasp", .data = &sysc_dra7_mcasp, },
    { .compatible = "ti,sysc-usb-host-fs",
    .data = &sysc_omap4_usb_host_fs, },
    { .compatible = "ti,sysc-dra7-mcan", .data = &sysc_dra7_mcan, },
    --
    2.20.1


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