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    Subject[PATCH v7 12/42] clk: davinci: Add platform information for TI DA850 PSC
    Date
    This adds platform-specific declarations for the PSC clocks on TI DA850/
    OMAP-L138/AM18XX SoCs.

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

    v7 changes:
    - split registration function into two, one for each PSC
    - add platform_device_id table
    - add additional clkdev lookups for clock platform devices
    - add LPSC_SET_RATE_PARENT flag to LCDC clock
    - fix davinci_nand device name

    v6 changes:
    - change how clkdev lookups are declared


    drivers/clk/davinci/Makefile | 1 +
    drivers/clk/davinci/psc-da850.c | 109 ++++++++++++++++++++++++++++++++++++++++
    drivers/clk/davinci/psc.c | 4 ++
    drivers/clk/davinci/psc.h | 4 ++
    4 files changed, 118 insertions(+)
    create mode 100644 drivers/clk/davinci/psc-da850.c

    diff --git a/drivers/clk/davinci/Makefile b/drivers/clk/davinci/Makefile
    index fb14c8c..aef0390 100644
    --- a/drivers/clk/davinci/Makefile
    +++ b/drivers/clk/davinci/Makefile
    @@ -11,4 +11,5 @@ obj-$(CONFIG_ARCH_DAVINCI_DM646x) += pll-dm646x.o

    obj-y += psc.o
    obj-$(CONFIG_ARCH_DAVINCI_DA830) += psc-da830.o
    +obj-$(CONFIG_ARCH_DAVINCI_DA850) += psc-da850.o
    endif
    diff --git a/drivers/clk/davinci/psc-da850.c b/drivers/clk/davinci/psc-da850.c
    new file mode 100644
    index 0000000..d601a89
    --- /dev/null
    +++ b/drivers/clk/davinci/psc-da850.c
    @@ -0,0 +1,109 @@
    +// SPDX-License-Identifier: GPL-2.0
    +/*
    + * PSC clock descriptions for TI DA850/OMAP-L138/AM18XX
    + *
    + * Copyright (C) 2018 David Lechner <david@lechnology.com>
    + */
    +
    +#include <linux/clk-provider.h>
    +#include <linux/clkdev.h>
    +#include <linux/init.h>
    +#include <linux/of.h>
    +#include <linux/types.h>
    +
    +#include "psc.h"
    +
    +LPSC_CLKDEV2(emifa_clkdev, NULL, "ti-aemif",
    + "aemif", "davinci_nand.0");
    +LPSC_CLKDEV1(spi0_clkdev, NULL, "spi_davinci.0");
    +LPSC_CLKDEV1(mmcsd0_clkdev, NULL, "da830-mmc.0");
    +LPSC_CLKDEV1(uart0_clkdev, NULL, "serial8250.0");
    +/* REVISIT: used dev_id instead of con_id */
    +LPSC_CLKDEV1(arm_clkdev, "arm", NULL);
    +LPSC_CLKDEV1(dsp_clkdev, NULL, "davinci-rproc.0");
    +
    +static const struct davinci_lpsc_clk_info da850_psc0_info[] __initconst = {
    + LPSC(0, 0, tpcc0, 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, emifa, async1, emifa_clkdev, 0),
    + LPSC(4, 0, spi0, pll0_sysclk2, spi0_clkdev, 0),
    + LPSC(5, 0, mmcsd0, pll0_sysclk2, mmcsd0_clkdev, 0),
    + LPSC(6, 0, aintc, pll0_sysclk4, NULL, LPSC_ALWAYS_ENABLED),
    + LPSC(7, 0, arm_rom, pll0_sysclk2, NULL, LPSC_ALWAYS_ENABLED),
    + LPSC(9, 0, uart0, pll0_sysclk2, uart0_clkdev, 0),
    + LPSC(13, 0, pruss, pll0_sysclk2, NULL, 0),
    + LPSC(14, 0, arm, pll0_sysclk6, arm_clkdev, LPSC_ALWAYS_ENABLED | LPSC_SET_RATE_PARENT),
    + LPSC(15, 1, dsp, pll0_sysclk1, dsp_clkdev, LPSC_FORCE | LPSC_LOCAL_RESET),
    + { }
    +};
    +
    +LPSC_CLKDEV3(usb0_clkdev, "fck", "da830-usb-phy-clks",
    + 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(sata_clkdev, "fck", "ahci_da850");
    +LPSC_CLKDEV1(vpif_clkdev, NULL, "vpif");
    +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(mcbsp0_clkdev, NULL, "davinci-mcbsp.0");
    +LPSC_CLKDEV1(mcbsp1_clkdev, NULL, "davinci-mcbsp.1");
    +LPSC_CLKDEV1(lcdc_clkdev, "fck", "da8xx_lcdc.0");
    +LPSC_CLKDEV3(ehrpwm_clkdev, "fck", "ehrpwm.0",
    + "fck", "ehrpwm.1",
    + NULL, "da830-tbclksync");
    +LPSC_CLKDEV1(mmcsd1_clkdev, NULL, "da830-mmc.1");
    +LPSC_CLKDEV3(ecap_clkdev, "fck", "ecap.0",
    + "fck", "ecap.1",
    + "fck", "ecap.2");
    +
    +static const struct davinci_lpsc_clk_info da850_psc1_info[] __initconst = {
    + LPSC(0, 0, tpcc1, pll0_sysclk2, NULL, LPSC_ALWAYS_ENABLED),
    + 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, ddr, pll0_sysclk2, NULL, LPSC_ALWAYS_ENABLED),
    + LPSC(7, 0, mcasp0, async3, mcasp0_clkdev, 0),
    + LPSC(8, 0, sata, pll0_sysclk2, sata_clkdev, LPSC_FORCE),
    + LPSC(9, 0, vpif, pll0_sysclk2, vpif_clkdev, 0),
    + LPSC(10, 0, spi1, async3, spi1_clkdev, 0),
    + LPSC(11, 0, i2c1, pll0_sysclk4, i2c1_clkdev, 0),
    + LPSC(12, 0, uart1, async3, uart1_clkdev, 0),
    + LPSC(13, 0, uart2, async3, uart2_clkdev, 0),
    + LPSC(14, 0, mcbsp0, async3, mcbsp0_clkdev, 0),
    + LPSC(15, 0, mcbsp1, async3, mcbsp1_clkdev, 0),
    + LPSC(16, 0, lcdc, pll0_sysclk2, lcdc_clkdev, LPSC_SET_RATE_PARENT),
    + LPSC(17, 0, ehrpwm, async3, ehrpwm_clkdev, 0),
    + LPSC(18, 0, mmcsd1, pll0_sysclk2, mmcsd1_clkdev, 0),
    + LPSC(20, 0, ecap, async3, ecap_clkdev, 0),
    + LPSC(21, 0, tptc2, pll0_sysclk2, NULL, LPSC_ALWAYS_ENABLED),
    + { }
    +};
    +
    +int __init da850_psc0_init(struct device *dev, void __iomem *base)
    +{
    + return davinci_psc_register_clocks(dev, da850_psc0_info, 16, base);
    +}
    +
    +int __init da850_psc1_init(struct device *dev, void __iomem *base)
    +{
    + return davinci_psc_register_clocks(dev, da850_psc1_info, 32, base);
    +}
    +
    +int __init of_da850_psc0_init(struct device *dev, void __iomem *base)
    +{
    + return of_davinci_psc_clk_init(dev, da850_psc0_info, 16, base);
    +}
    +
    +int __init of_da850_psc1_init(struct device *dev, void __iomem *base)
    +{
    + return of_davinci_psc_clk_init(dev, da850_psc1_info, 32, base);
    +}
    diff --git a/drivers/clk/davinci/psc.c b/drivers/clk/davinci/psc.c
    index c4310af..0f53ec2 100644
    --- a/drivers/clk/davinci/psc.c
    +++ b/drivers/clk/davinci/psc.c
    @@ -439,12 +439,16 @@ int of_davinci_psc_clk_init(struct device *dev,
    }

    static const struct of_device_id davinci_psc_of_match[] = {
    + { .compatible = "ti,da850-psc0", .data = of_da850_psc0_init },
    + { .compatible = "ti,da850-psc1", .data = of_da850_psc1_init },
    { }
    };

    static const struct platform_device_id davinci_psc_id_table[] = {
    { .name = "da830-psc0", .driver_data = (kernel_ulong_t)da830_psc0_init },
    { .name = "da830-psc1", .driver_data = (kernel_ulong_t)da830_psc1_init },
    + { .name = "da850-psc0", .driver_data = (kernel_ulong_t)da850_psc0_init },
    + { .name = "da850-psc1", .driver_data = (kernel_ulong_t)da850_psc1_init },
    { }
    };

    diff --git a/drivers/clk/davinci/psc.h b/drivers/clk/davinci/psc.h
    index c165cee..b50b2ea 100644
    --- a/drivers/clk/davinci/psc.h
    +++ b/drivers/clk/davinci/psc.h
    @@ -89,5 +89,9 @@ int of_davinci_psc_clk_init(struct device *dev,
    /* Device-specific callbacks */
    int da830_psc0_init(struct device *dev, void __iomem *base);
    int da830_psc1_init(struct device *dev, void __iomem *base);
    +int da850_psc0_init(struct device *dev, void __iomem *base);
    +int da850_psc1_init(struct device *dev, void __iomem *base);
    +int of_da850_psc0_init(struct device *dev, void __iomem *base);
    +int of_da850_psc1_init(struct device *dev, void __iomem *base);

    #endif /* __CLK_DAVINCI_PSC_H__ */
    --
    2.7.4
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