[U-Boot] [PATCH] power: fan53555: add support for Silergy SYR82X and SYR83X

Anand Moon linux.amoon at gmail.com
Wed Nov 20 01:51:01 UTC 2019


Hi Vasily,

I have got a development board Odroid N1
it has SYR837PKC and SYR838PKC regulator IC on the board.

On testing this patch, it failed with below message.

Model: Hardkernel ODROID-N1
DRAM:  3.9 GiB
SW: fan53555_voltages_setup: die id 7 rev 7 not supported!
MMC:   dwmmc at fe320000: 1, sdhci at fe330000: 0
Loading Environment from MMC... Card did not respond to voltage select!
*** Warning - No block device, using default environment

could you add this *die id* and *rev id* and update in the next patch.

Could we enable this feature on all rk3399 development boards

-Anand

On Sun, 17 Nov 2019 at 01:02, Vasily Khoruzhick <anarsoul at gmail.com> wrote:
>
> SYR82X and SYR83X are almost identical to FAN53555, the only difference
> is different die ID and revision, voltage ranges and steps.
>
> Signed-off-by: Vasily Khoruzhick <anarsoul at gmail.com>
> ---
>  drivers/power/pmic/fan53555.c      |  7 +++--
>  drivers/power/regulator/fan53555.c | 45 ++++++++++++++++++++++--------
>  include/power/fan53555.h           | 14 ++++++++++
>  3 files changed, 52 insertions(+), 14 deletions(-)
>  create mode 100644 include/power/fan53555.h
>
> diff --git a/drivers/power/pmic/fan53555.c b/drivers/power/pmic/fan53555.c
> index 1ca59c5f0c..11304d2146 100644
> --- a/drivers/power/pmic/fan53555.c
> +++ b/drivers/power/pmic/fan53555.c
> @@ -8,6 +8,7 @@
>  #include <dm/device-internal.h>
>  #include <dm/lists.h>
>  #include <i2c.h>
> +#include <power/fan53555.h>
>  #include <power/pmic.h>
>  #include <power/regulator.h>
>
> @@ -58,7 +59,7 @@ static int pmic_fan53555_bind(struct udevice *dev)
>                 return -ENOENT;
>         }
>
> -       return device_bind_with_driver_data(dev, drv, "SW", 0,
> +       return device_bind_with_driver_data(dev, drv, "SW", dev->driver_data,
>                                             dev_ofnode(dev), &child);
>  };
>
> @@ -69,7 +70,9 @@ static struct dm_pmic_ops pmic_fan53555_ops = {
>  };
>
>  static const struct udevice_id pmic_fan53555_match[] = {
> -       { .compatible = "fcs,fan53555" },
> +       { .compatible = "fcs,fan53555", .data = FAN53555_VENDOR_FAIRCHILD, },
> +       { .compatible = "silergy,syr827", .data = FAN53555_VENDOR_SILERGY, },
> +       { .compatible = "silergy,syr828", .data = FAN53555_VENDOR_SILERGY, },
>         { },
>  };
>
> diff --git a/drivers/power/regulator/fan53555.c b/drivers/power/regulator/fan53555.c
> index dbd5502377..9c48b26216 100644
> --- a/drivers/power/regulator/fan53555.c
> +++ b/drivers/power/regulator/fan53555.c
> @@ -10,6 +10,7 @@
>  #include <fdtdec.h>
>  #include <i2c.h>
>  #include <asm/gpio.h>
> +#include <power/fan53555.h>
>  #include <power/pmic.h>
>  #include <power/regulator.h>
>
> @@ -27,21 +28,37 @@
>   * See http://www.onsemi.com/pub/Collateral/FAN53555-D.pdf for details.
>   */
>  static const struct {
> +       unsigned int vendor;
>         u8 die_id;
>         u8 die_rev;
> +       bool check_rev;
>         u32 vsel_min;
>         u32 vsel_step;
>  } ic_types[] = {
> -       { 0x0, 0x3, 600000, 10000 },  /* Option 00 */
> -       { 0x0, 0xf, 800000, 10000 },  /* Option 13 */
> -       { 0x0, 0xc, 600000, 12500 },  /* Option 23 */
> -       { 0x1, 0x3, 600000, 10000 },  /* Option 01 */
> -       { 0x3, 0x3, 600000, 10000 },  /* Option 03 */
> -       { 0x4, 0xf, 603000, 12826 },  /* Option 04 */
> -       { 0x5, 0x3, 600000, 10000 },  /* Option 05 */
> -       { 0x8, 0x1, 600000, 10000 },  /* Option 08 */
> -       { 0x8, 0xf, 600000, 10000 },  /* Option 08 */
> -       { 0xc, 0xf, 603000, 12826 },  /* Option 09 */
> +       /* Option 00 */
> +       { FAN53555_VENDOR_FAIRCHILD, 0x0, 0x3, true,  600000, 10000 },
> +       /* Option 13 */
> +       { FAN53555_VENDOR_FAIRCHILD, 0x0, 0xf, true,  800000, 10000 },
> +       /* Option 23 */
> +       { FAN53555_VENDOR_FAIRCHILD, 0x0, 0xc, true,  600000, 12500 },
> +       /* Option 01 */
> +       { FAN53555_VENDOR_FAIRCHILD, 0x1, 0x3, true,  600000, 10000 },
> +       /* Option 03 */
> +       { FAN53555_VENDOR_FAIRCHILD, 0x3, 0x3, true,  600000, 10000 },
> +       /* Option 04 */
> +       { FAN53555_VENDOR_FAIRCHILD, 0x4, 0xf, true,  603000, 12826 },
> +       /* Option 05 */
> +       { FAN53555_VENDOR_FAIRCHILD, 0x5, 0x3, true,  600000, 10000 },
> +       /* Option 08 */
> +       { FAN53555_VENDOR_FAIRCHILD, 0x8, 0x1, true,  600000, 10000 },
> +       /* Option 08 */
> +       { FAN53555_VENDOR_FAIRCHILD, 0x8, 0xf, true,  600000, 10000 },
> +       /* Option 09 */
> +       { FAN53555_VENDOR_FAIRCHILD, 0xc, 0xf, true,  603000, 12826 },
> +       /* SYL82X */
> +       { FAN53555_VENDOR_SILERGY,   0x8, 0x0, false, 712500, 12500 },
> +       /* SYL83X */
> +       { FAN53555_VENDOR_SILERGY,   0x9, 0x0, false, 712500, 12500 },
>  };
>
>  /* I2C-accessible byte-sized registers */
> @@ -152,10 +169,14 @@ static int fan53555_voltages_setup(struct udevice *dev)
>
>         /* Init voltage range and step */
>         for (i = 0; i < ARRAY_SIZE(ic_types); ++i) {
> +               if (ic_types[i].vendor != priv->vendor)
> +                       continue;
> +
>                 if (ic_types[i].die_id != priv->die_id)
>                         continue;
>
> -               if (ic_types[i].die_rev != priv->die_rev)
> +               if (ic_types[i].check_rev &&
> +                   ic_types[i].die_rev != priv->die_rev)
>                         continue;
>
>                 priv->vsel_min = ic_types[i].vsel_min;
> @@ -193,7 +214,7 @@ static int fan53555_probe(struct udevice *dev)
>                 return ID2;
>
>         /* extract vendor, die_id and die_rev */
> -       priv->vendor = bitfield_extract(ID1, 5, 3);
> +       priv->vendor = dev->driver_data;
>         priv->die_id = ID1 & GENMASK(3, 0);
>         priv->die_rev = ID2 & GENMASK(3, 0);
>
> diff --git a/include/power/fan53555.h b/include/power/fan53555.h
> new file mode 100644
> index 0000000000..c039f06071
> --- /dev/null
> +++ b/include/power/fan53555.h
> @@ -0,0 +1,14 @@
> +/* SPDX-License-Identifier: GPL-2.0+ */
> +/*
> + * Copyright (C) 2019 Vasily Khoruzhick <anarsoul at gmail.com>
> + */
> +
> +#ifndef _FAN53555_H_
> +#define _FAN53555_H_
> +
> +enum fan53555_vendor {
> +       FAN53555_VENDOR_FAIRCHILD,
> +       FAN53555_VENDOR_SILERGY,
> +};
> +
> +#endif
> --
> 2.24.0
>
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