[U-Boot] [PATCH v3 15/17] odroid: board: add support to dm pmic api

[Przemyslaw Marczak <p.marczak@samsung.com>]

Hello Simon,

On 03/29/2015 03:08 PM, Simon Glass wrote:
>   Hi Przemyslaw,
>
> On 24 March 2015 at 14:30, Przemyslaw Marczak <p.marczak@samsung.com> wrote:
>> This commit change the old pmic framework calls with the new ones.
>>
>> Signed-off-by: Przemyslaw Marczak <p.marczak@samsung.com>
>> ---
>> Changes v2:
>> - remove board_init_i2c() call
>> - update regulator calls
>> - update headers
>> - samsung/misc.c: include required header
>>
>> Changes v3:
>> - adjust regulator calls to new api
>> ---
>>   board/samsung/common/misc.c   |   1 +
>>   board/samsung/odroid/odroid.c | 113 +++++++++++++++++++++++++++++++++---------
>>   2 files changed, 91 insertions(+), 23 deletions(-)
>>
>> diff --git a/board/samsung/common/misc.c b/board/samsung/common/misc.c
>> index 1a77c82..f0d69d4 100644
>> --- a/board/samsung/common/misc.c
>> +++ b/board/samsung/common/misc.c
>> @@ -16,6 +16,7 @@
>>   #include <asm/arch/cpu.h>
>>   #include <asm/gpio.h>
>>   #include <linux/input.h>
>> +#include <dm.h>
>>   #include <power/pmic.h>
>>   #include <mmc.h>
>>
>> diff --git a/board/samsung/odroid/odroid.c b/board/samsung/odroid/odroid.c
>> index ae41c29..aa3b0ff 100644
>> --- a/board/samsung/odroid/odroid.c
>> +++ b/board/samsung/odroid/odroid.c
>> @@ -12,7 +12,9 @@
>>   #include <asm/arch/gpio.h>
>>   #include <asm/gpio.h>
>>   #include <asm/arch/cpu.h>
>> +#include <dm.h>
>>   #include <power/pmic.h>
>> +#include <power/regulator.h>
>>   #include <power/max77686_pmic.h>
>>   #include <errno.h>
>>   #include <mmc.h>
>> @@ -405,15 +407,62 @@ static void board_gpio_init(void)
>>
>>   static int pmic_init_max77686(void)
>>   {
>> -       struct pmic *p = pmic_get("MAX77686_PMIC");
>> +       struct udevice *dev;
>> +       int ret;
>>
>> -       if (pmic_probe(p))
>> -               return -ENODEV;
>> +       ret = regulator_get("VDDQ_EMMC_1.8V", &dev);
>> +       if (ret) {
>> +               error("Regulator get error: %d", ret);
>> +               return ret;
>> +       }
>> +
>> +       ret = regulator_set_value(dev, 1800000);
>> +       if (ret) {
>> +               error("Regulator %s value setting error: %d", dev->name, ret);
>> +               return ret;
>> +       }
>> +
>> +       ret = regulator_set_enable(dev, true);
>> +       if (ret) {
>> +               error("Regulator %s enable error: %d", dev->name, ret);
>> +               return ret;
>> +       }
>
> How about adding a function that finds a regulator, sets its voltage
> and enables it? Then you can avoid duplicating the same code 3 times.
>

Yes, will add something like this.

>> +
>> +       ret = regulator_get("TFLASH_2.8V", &dev);
>> +       if (ret) {
>> +               error("Regulator get error: %d", ret);
>> +               return ret;
>> +       }
>> +
>> +       ret = regulator_set_value(dev, 2800000);
>> +       if (ret) {
>> +               error("Regulator %s value setting error: %d", dev->name, ret);
>> +               return ret;
>> +       }
>> +
>> +       ret = regulator_set_enable(dev, true);
>> +       if (ret) {
>> +               error("Regulator %s enable error: %d", dev->name, ret);
>> +               return ret;
>> +       }
>> +
>> +       ret = regulator_get("VDDQ_EMMC_2.8V", &dev);
>> +       if (ret) {
>> +               error("Regulator get error: %d", ret);
>> +               return ret;
>> +       }
>>
>> -       /* Set LDO Voltage */
>> -       max77686_set_ldo_voltage(p, 20, 1800000);       /* LDO20 eMMC */
>> -       max77686_set_ldo_voltage(p, 21, 2800000);       /* LDO21 SD */
>> -       max77686_set_ldo_voltage(p, 22, 2800000);       /* LDO22 eMMC */
>> +       ret = regulator_set_value(dev, 2800000);
>> +       if (ret) {
>> +               error("Regulator %s value setting error: %d", dev->name, ret);
>> +               return ret;
>> +       }
>> +
>> +       ret = regulator_set_enable(dev, true);
>> +       if (ret) {
>> +               error("Regulator %s enable error: %d", dev->name, ret);
>> +               return ret;
>> +       }
>>
>>          return 0;
>>   }
>> @@ -434,7 +483,6 @@ int exynos_init(void)
>>
>>   int exynos_power_init(void)
>>   {
>> -       pmic_init(0);
>>          pmic_init_max77686();
>>
>>          return 0;
>> @@ -443,19 +491,20 @@ int exynos_power_init(void)
>>   #ifdef CONFIG_USB_GADGET
>>   static int s5pc210_phy_control(int on)
>>   {
>> -       struct pmic *p_pmic;
>> -
>> -       p_pmic = pmic_get("MAX77686_PMIC");
>> -       if (!p_pmic)
>> -               return -ENODEV;
>> +       struct udevice *dev;
>> +       int ret;
>>
>> -       if (pmic_probe(p_pmic))
>> -               return -1;
>> +       ret = regulator_get("VDD_UOTG_3.0V", &dev);
>> +       if (ret) {
>> +               error("Regulator get error: %d", ret);
>> +               return ret;
>> +       }
>>
>>          if (on)
>> -               return max77686_set_ldo_mode(p_pmic, 12, OPMODE_ON);
>> +               return regulator_set_mode(dev, OPMODE_ON);
>>          else
>> -               return max77686_set_ldo_mode(p_pmic, 12, OPMODE_LPM);
>> +               return regulator_set_mode(dev, OPMODE_LPM);
>> +
>>   }
>>
>>   struct s3c_plat_otg_data s5pc210_otg_data = {
>> @@ -472,7 +521,8 @@ struct s3c_plat_otg_data s5pc210_otg_data = {
>>   int board_usb_init(int index, enum usb_init_type init)
>>   {
>>   #ifdef CONFIG_CMD_USB
>> -       struct pmic *p_pmic;
>> +       struct udevice *dev;
>> +       int ret;
>>
>>          /* Set Ref freq 0 => 24MHz, 1 => 26MHz*/
>>          /* Odroid Us have it at 24MHz, Odroid Xs at 26MHz */
>> @@ -490,14 +540,31 @@ int board_usb_init(int index, enum usb_init_type init)
>>          /* Power off and on BUCK8 for LAN9730 */
>>          debug("LAN9730 - Turning power buck 8 OFF and ON.\n");
>>
>> -       p_pmic = pmic_get("MAX77686_PMIC");
>> -       if (p_pmic && !pmic_probe(p_pmic)) {
>> -               max77686_set_buck_voltage(p_pmic, 8, 750000);
>> -               max77686_set_buck_voltage(p_pmic, 8, 3300000);
>> +       ret = regulator_get("VCC_P3V3_2.85V", &dev);
>> +       if (ret) {
>> +               error("Regulator get error: %d", ret);
>> +               return ret;
>>          }
>>
>> -#endif
>> +       ret = regulator_set_enable(dev, true);
>> +       if (ret) {
>> +               error("Regulator %s enable setting error: %d", dev->name, ret);
>> +               return ret;
>> +       }
>> +
>> +       ret = regulator_set_value(dev, 750000);
>> +       if (ret) {
>> +               error("Regulator %s value setting error: %d", dev->name, ret);
>> +               return ret;
>> +       }
>>
>> +       ret = regulator_set_value(dev, 3300000);
>> +       if (ret) {
>> +               error("Regulator %s value setting error: %d", dev->name, ret);
>> +               return ret;
>> +       }
>> +
>> +#endif
>>          debug("USB_udc_probe\n");
>>          return s3c_udc_probe(&s5pc210_otg_data);
>>   }
>> --
>> 1.9.1
>>
>
> Regards,
> Simon
>

Thanks,
-- 
Przemyslaw Marczak
Samsung R&D Institute Poland
Samsung Electronics
p.marczak at samsung.com