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    Subject[PATCH v6 16/41] clk: davinci: Add platform information for TI DM646x PSC
    Date
    This adds platform-specific declarations for the PSC clocks on TI
    DM646x based systems.

    Signed-off-by: David Lechner <david@lechnology.com>
    ---

    v6 changes:
    - change how clkdev lookups are declared

    drivers/clk/davinci/Makefile | 1 +
    drivers/clk/davinci/psc-dm646x.c | 62 ++++++++++++++++++++++++++++++++++++++++
    include/linux/clk/davinci.h | 1 +
    3 files changed, 64 insertions(+)
    create mode 100644 drivers/clk/davinci/psc-dm646x.c

    diff --git a/drivers/clk/davinci/Makefile b/drivers/clk/davinci/Makefile
    index a20e379..6c388d4 100644
    --- a/drivers/clk/davinci/Makefile
    +++ b/drivers/clk/davinci/Makefile
    @@ -15,4 +15,5 @@ obj-$(CONFIG_ARCH_DAVINCI_DA850) += psc-da850.o
    obj-$(CONFIG_ARCH_DAVINCI_DM355) += psc-dm355.o
    obj-$(CONFIG_ARCH_DAVINCI_DM365) += psc-dm365.o
    obj-$(CONFIG_ARCH_DAVINCI_DM644x) += psc-dm644x.o
    +obj-$(CONFIG_ARCH_DAVINCI_DM646x) += psc-dm646x.o
    endif
    diff --git a/drivers/clk/davinci/psc-dm646x.c b/drivers/clk/davinci/psc-dm646x.c
    new file mode 100644
    index 0000000..bdb9db7
    --- /dev/null
    +++ b/drivers/clk/davinci/psc-dm646x.c
    @@ -0,0 +1,62 @@
    +// SPDX-License-Identifier: GPL-2.0
    +/*
    + * PSC clock descriptions for TI DaVinci DM646x
    + *
    + * Copyright (C) 2018 David Lechner <david@lechnology.com>
    + */
    +
    +#include <linux/clk-provider.h>
    +#include <linux/clkdev.h>
    +#include <linux/init.h>
    +#include <linux/types.h>
    +
    +#include "psc.h"
    +
    +LPSC_CLKDEV1(ide_clkdev, NULL, "palm_bk3710");
    +LPSC_CLKDEV2(emac_clkdev, NULL, "davinci_emac.1",
    + "fck", "davinci_mdio.0");
    +LPSC_CLKDEV1(aemif_clkdev, "aemif", NULL);
    +LPSC_CLKDEV1(mcasp0_clkdev, NULL, "davinci-mcasp.0");
    +LPSC_CLKDEV1(mcasp1_clkdev, NULL, "davinci-mcasp.1");
    +LPSC_CLKDEV1(uart0_clkdev, NULL, "serial8250.0");
    +LPSC_CLKDEV1(uart1_clkdev, NULL, "serial8250.1");
    +LPSC_CLKDEV1(uart2_clkdev, NULL, "serial8250.2");
    +LPSC_CLKDEV1(i2c_clkdev, NULL, "i2c_davinci.1");
    +/* REVISIT: gpio-davinci.c should be modified to drop con_id */
    +LPSC_CLKDEV1(gpio_clkdev, "gpio", NULL);
    +LPSC_CLKDEV1(timer0_clkdev, "timer0", NULL);
    +
    +static const struct davinci_psc_clk_info dm646x_psc_info[] __initconst = {
    + LPSC(0, 0, arm, pll1_sysclk2, NULL, LPSC_ALWAYS_ENABLED),
    + /* REVISIT how to disable? */
    + LPSC(1, 0, dsp, pll1_sysclk1, NULL, LPSC_ALWAYS_ENABLED),
    + LPSC(4, 0, edma_cc, pll1_sysclk2, NULL, LPSC_ALWAYS_ENABLED),
    + LPSC(5, 0, edma_tc0, pll1_sysclk2, NULL, LPSC_ALWAYS_ENABLED),
    + LPSC(6, 0, edma_tc1, pll1_sysclk2, NULL, LPSC_ALWAYS_ENABLED),
    + LPSC(7, 0, edma_tc2, pll1_sysclk2, NULL, LPSC_ALWAYS_ENABLED),
    + LPSC(8, 0, edma_tc3, pll1_sysclk2, NULL, LPSC_ALWAYS_ENABLED),
    + LPSC(10, 0, ide, pll1_sysclk4, ide_clkdev, 0),
    + LPSC(14, 0, emac, pll1_sysclk3, emac_clkdev, 0),
    + LPSC(16, 0, vpif0, ref_clk, NULL, LPSC_ALWAYS_ENABLED),
    + LPSC(17, 0, vpif1, ref_clk, NULL, LPSC_ALWAYS_ENABLED),
    + LPSC(21, 0, aemif, pll1_sysclk3, aemif_clkdev, LPSC_ALWAYS_ENABLED),
    + LPSC(22, 0, mcasp0, pll1_sysclk3, mcasp0_clkdev, 0),
    + LPSC(23, 0, mcasp1, pll1_sysclk3, mcasp1_clkdev, 0),
    + LPSC(26, 0, uart0, aux_clkin, uart0_clkdev, 0),
    + LPSC(27, 0, uart1, aux_clkin, uart1_clkdev, 0),
    + LPSC(28, 0, uart2, aux_clkin, uart2_clkdev, 0),
    + /* REVIST: disabling hangs system */
    + LPSC(29, 0, pwm0, pll1_sysclk3, NULL, LPSC_ALWAYS_ENABLED),
    + /* REVIST: disabling hangs system */
    + LPSC(30, 0, pwm1, pll1_sysclk3, NULL, LPSC_ALWAYS_ENABLED),
    + LPSC(31, 0, i2c, pll1_sysclk3, i2c_clkdev, 0),
    + LPSC(33, 0, gpio, pll1_sysclk3, gpio_clkdev, 0),
    + LPSC(34, 0, timer0, pll1_sysclk3, timer0_clkdev, 0),
    + LPSC(35, 0, timer1, pll1_sysclk3, NULL, 0),
    + { }
    +};
    +
    +void __init dm646x_psc_clk_init(void __iomem *psc)
    +{
    + davinci_psc_register_clocks(dm646x_psc_info, psc);
    +}
    diff --git a/include/linux/clk/davinci.h b/include/linux/clk/davinci.h
    index 6d2896d..3810ea3 100644
    --- a/include/linux/clk/davinci.h
    +++ b/include/linux/clk/davinci.h
    @@ -21,5 +21,6 @@ void da850_psc_clk_init(void __iomem *psc0, void __iomem *psc1);
    void dm355_psc_clk_init(void __iomem *psc);
    void dm365_psc_clk_init(void __iomem *psc);
    void dm644x_psc_clk_init(void __iomem *psc);
    +void dm646x_psc_clk_init(void __iomem *psc);

    #endif /* __LINUX_CLK_DAVINCI_H__ */
    --
    2.7.4
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