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    Subject[PATCH v8 11/42] clk: davinci: Add platform information for TI DA830 PSC
    Date
    This adds platform-specific declarations for the PSC clocks on TI DA830/
    OMAP-L137/AM17XX SoCs.

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

    v8 changes:
    - drop use of __init and __initconst attributes
    - add parent clock mappings

    v7 changes:
    - split registration function into two, one for each PSC
    - add platform_device_id table

    v6 changes:
    - change how clkdev lookups are declared

    drivers/clk/davinci/Makefile | 1 +
    drivers/clk/davinci/psc-da830.c | 116 ++++++++++++++++++++++++++++++++++++++++
    drivers/clk/davinci/psc.c | 2 +
    drivers/clk/davinci/psc.h | 3 ++
    4 files changed, 122 insertions(+)
    create mode 100644 drivers/clk/davinci/psc-da830.c

    diff --git a/drivers/clk/davinci/Makefile b/drivers/clk/davinci/Makefile
    index cd1bf2c..fb14c8c 100644
    --- a/drivers/clk/davinci/Makefile
    +++ b/drivers/clk/davinci/Makefile
    @@ -10,4 +10,5 @@ obj-$(CONFIG_ARCH_DAVINCI_DM644x) += pll-dm644x.o
    obj-$(CONFIG_ARCH_DAVINCI_DM646x) += pll-dm646x.o

    obj-y += psc.o
    +obj-$(CONFIG_ARCH_DAVINCI_DA830) += psc-da830.o
    endif
    diff --git a/drivers/clk/davinci/psc-da830.c b/drivers/clk/davinci/psc-da830.c
    new file mode 100644
    index 0000000..f61abf5
    --- /dev/null
    +++ b/drivers/clk/davinci/psc-da830.c
    @@ -0,0 +1,116 @@
    +// SPDX-License-Identifier: GPL-2.0
    +/*
    + * PSC clock descriptions for TI DA830/OMAP-L137/AM17XX
    + *
    + * Copyright (C) 2018 David Lechner <david@lechnology.com>
    + */
    +
    +#include <linux/clk-provider.h>
    +#include <linux/clk.h>
    +#include <linux/clkdev.h>
    +#include <linux/init.h>
    +#include <linux/kernel.h>
    +#include <linux/types.h>
    +
    +#include "psc.h"
    +
    +LPSC_CLKDEV1(spi0_clkdev, NULL, "spi_davinci.0");
    +LPSC_CLKDEV1(mmcsd_clkdev, NULL, "da830-mmc.0");
    +LPSC_CLKDEV1(uart0_clkdev, NULL, "serial8250.0");
    +
    +static const struct davinci_lpsc_clk_info da830_psc0_info[] = {
    + LPSC(0, 0, tpcc, pll0_sysclk2, NULL, LPSC_ALWAYS_ENABLED),
    + LPSC(1, 0, tptc0, pll0_sysclk2, NULL, LPSC_ALWAYS_ENABLED),
    + LPSC(2, 0, tptc1, pll0_sysclk2, NULL, LPSC_ALWAYS_ENABLED),
    + LPSC(3, 0, aemif, pll0_sysclk3, NULL, LPSC_ALWAYS_ENABLED),
    + LPSC(4, 0, spi0, pll0_sysclk2, spi0_clkdev, 0),
    + LPSC(5, 0, mmcsd, pll0_sysclk2, mmcsd_clkdev, 0),
    + LPSC(6, 0, aintc, pll0_sysclk4, NULL, LPSC_ALWAYS_ENABLED),
    + LPSC(7, 0, arm_rom, pll0_sysclk2, NULL, LPSC_ALWAYS_ENABLED),
    + LPSC(8, 0, secu_mgr, pll0_sysclk4, NULL, LPSC_ALWAYS_ENABLED),
    + LPSC(9, 0, uart0, pll0_sysclk2, uart0_clkdev, 0),
    + LPSC(10, 0, scr0_ss, pll0_sysclk2, NULL, LPSC_ALWAYS_ENABLED),
    + LPSC(11, 0, scr1_ss, pll0_sysclk2, NULL, LPSC_ALWAYS_ENABLED),
    + LPSC(12, 0, scr2_ss, pll0_sysclk2, NULL, LPSC_ALWAYS_ENABLED),
    + LPSC(13, 0, pruss, pll0_sysclk2, NULL, LPSC_ALWAYS_ENABLED),
    + LPSC(14, 0, arm, pll0_sysclk6, NULL, LPSC_ALWAYS_ENABLED),
    + { }
    +};
    +
    +static int da830_psc0_init(struct device *dev, void __iomem *base)
    +{
    + return davinci_psc_register_clocks(dev, da830_psc0_info, 16, base);
    +}
    +
    +static struct clk_bulk_data da830_psc0_parent_clks[] = {
    + { .id = "pll0_sysclk2" },
    + { .id = "pll0_sysclk3" },
    + { .id = "pll0_sysclk4" },
    + { .id = "pll0_sysclk6" },
    +};
    +
    +const struct davinci_psc_init_data da830_psc0_init_data = {
    + .parent_clks = da830_psc0_parent_clks,
    + .num_parent_clks = ARRAY_SIZE(da830_psc0_parent_clks),
    + .psc_init = &da830_psc0_init,
    +};
    +
    +LPSC_CLKDEV2(usb0_clkdev, NULL, "musb-da8xx",
    + NULL, "cppi41-dmaengine");
    +LPSC_CLKDEV1(usb1_clkdev, NULL, "ohci-da8xx");
    +/* REVISIT: gpio-davinci.c should be modified to drop con_id */
    +LPSC_CLKDEV1(gpio_clkdev, "gpio", NULL);
    +LPSC_CLKDEV2(emac_clkdev, NULL, "davinci_emac.1",
    + "fck", "davinci_mdio.0");
    +LPSC_CLKDEV1(mcasp0_clkdev, NULL, "davinci-mcasp.0");
    +LPSC_CLKDEV1(mcasp1_clkdev, NULL, "davinci-mcasp.1");
    +LPSC_CLKDEV1(mcasp2_clkdev, NULL, "davinci-mcasp.2");
    +LPSC_CLKDEV1(spi1_clkdev, NULL, "spi_davinci.1");
    +LPSC_CLKDEV1(i2c1_clkdev, NULL, "i2c_davinci.2");
    +LPSC_CLKDEV1(uart1_clkdev, NULL, "serial8250.1");
    +LPSC_CLKDEV1(uart2_clkdev, NULL, "serial8250.2");
    +LPSC_CLKDEV1(lcdc_clkdev, "fck", "da8xx_lcdc.0");
    +LPSC_CLKDEV2(pwm_clkdev, "fck", "ehrpwm.0",
    + "fck", "ehrpwm.1");
    +LPSC_CLKDEV3(ecap_clkdev, "fck", "ecap.0",
    + "fck", "ecap.1",
    + "fck", "ecap.2");
    +LPSC_CLKDEV2(eqep_clkdev, NULL, "eqep.0",
    + NULL, "eqep.1");
    +
    +static const struct davinci_lpsc_clk_info da830_psc1_info[] = {
    + LPSC(1, 0, usb0, pll0_sysclk2, usb0_clkdev, 0),
    + LPSC(2, 0, usb1, pll0_sysclk4, usb1_clkdev, 0),
    + LPSC(3, 0, gpio, pll0_sysclk4, gpio_clkdev, 0),
    + LPSC(5, 0, emac, pll0_sysclk4, emac_clkdev, 0),
    + LPSC(6, 0, emif3, pll0_sysclk5, NULL, LPSC_ALWAYS_ENABLED),
    + LPSC(7, 0, mcasp0, pll0_sysclk2, mcasp0_clkdev, 0),
    + LPSC(8, 0, mcasp1, pll0_sysclk2, mcasp1_clkdev, 0),
    + LPSC(9, 0, mcasp2, pll0_sysclk2, mcasp2_clkdev, 0),
    + LPSC(10, 0, spi1, pll0_sysclk2, spi1_clkdev, 0),
    + LPSC(11, 0, i2c1, pll0_sysclk4, i2c1_clkdev, 0),
    + LPSC(12, 0, uart1, pll0_sysclk2, uart1_clkdev, 0),
    + LPSC(13, 0, uart2, pll0_sysclk2, uart2_clkdev, 0),
    + LPSC(16, 0, lcdc, pll0_sysclk2, lcdc_clkdev, 0),
    + LPSC(17, 0, pwm, pll0_sysclk2, pwm_clkdev, 0),
    + LPSC(20, 0, ecap, pll0_sysclk2, ecap_clkdev, 0),
    + LPSC(21, 0, eqep, pll0_sysclk2, eqep_clkdev, 0),
    + { }
    +};
    +
    +static int da830_psc1_init(struct device *dev, void __iomem *base)
    +{
    + return davinci_psc_register_clocks(dev, da830_psc1_info, 32, base);
    +}
    +
    +static struct clk_bulk_data da830_psc1_parent_clks[] = {
    + { .id = "pll0_sysclk2" },
    + { .id = "pll0_sysclk4" },
    + { .id = "pll0_sysclk5" },
    +};
    +
    +const struct davinci_psc_init_data da830_psc1_init_data = {
    + .parent_clks = da830_psc1_parent_clks,
    + .num_parent_clks = ARRAY_SIZE(da830_psc1_parent_clks),
    + .psc_init = &da830_psc1_init,
    +};
    diff --git a/drivers/clk/davinci/psc.c b/drivers/clk/davinci/psc.c
    index 5613607..d4cff87 100644
    --- a/drivers/clk/davinci/psc.c
    +++ b/drivers/clk/davinci/psc.c
    @@ -486,6 +486,8 @@ static const struct of_device_id davinci_psc_of_match[] = {
    };

    static const struct platform_device_id davinci_psc_id_table[] = {
    + { .name = "da830-psc0", .driver_data = (kernel_ulong_t)&da830_psc0_init_data },
    + { .name = "da830-psc1", .driver_data = (kernel_ulong_t)&da830_psc1_init_data },
    { }
    };

    diff --git a/drivers/clk/davinci/psc.h b/drivers/clk/davinci/psc.h
    index 4240134..852e9aa 100644
    --- a/drivers/clk/davinci/psc.h
    +++ b/drivers/clk/davinci/psc.h
    @@ -94,4 +94,7 @@ struct davinci_psc_init_data {
    int (*psc_init)(struct device *dev, void __iomem *base);
    };

    +extern const struct davinci_psc_init_data da830_psc0_init_data;
    +extern const struct davinci_psc_init_data da830_psc1_init_data;
    +
    #endif /* __CLK_DAVINCI_PSC_H__ */
    --
    2.7.4
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