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pmic: Add support for setting transmission length in uclass private data

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The struct uc_pmic_priv's trans_len field stores the number of types to
be transmitted per PMIC transfer.

Signed-off-by: Lukasz Majewski <lukma@denx.de>
Reviewed-by: Simon Glass <sjg@chromium.org>
This commit is contained in:
Lukasz Majewski
2018-05-15 16:26:35 +02:00
committed by Stefano Babic
parent 9a84116b31
commit b8a6d6777b
2 changed files with 19 additions and 0 deletions
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10
drivers/power/pmic/pmic-uclass.c
View File

@@ -165,7 +165,17 @@ int pmic_clrsetbits(struct udevice *dev, uint reg, uint clr, uint set)
return pmic_reg_write(dev, reg, byte); return pmic_reg_write(dev, reg, byte);
} }
static int pmic_pre_probe(struct udevice *dev)
{
struct uc_pmic_priv *pmic_priv = dev_get_uclass_priv(dev);
pmic_priv->trans_len = 1;
return 0;
}
UCLASS_DRIVER(pmic) = { UCLASS_DRIVER(pmic) = {
.id = UCLASS_PMIC, .id = UCLASS_PMIC,
.name = "pmic", .name = "pmic",
.pre_probe = pmic_pre_probe,
.per_device_auto_alloc_size = sizeof(struct uc_pmic_priv),
}; };

9
include/power/pmic.h
View File

@@ -297,6 +297,15 @@ int pmic_reg_write(struct udevice *dev, uint reg, uint value);
*/ */
int pmic_clrsetbits(struct udevice *dev, uint reg, uint clr, uint set); int pmic_clrsetbits(struct udevice *dev, uint reg, uint clr, uint set);
/*
* This structure holds the private data for PMIC uclass
* For now we store information about the number of bytes
* being sent at once to the device.
*/
struct uc_pmic_priv {
uint trans_len;
};
#endif /* CONFIG_DM_PMIC */ #endif /* CONFIG_DM_PMIC */
#ifdef CONFIG_POWER #ifdef CONFIG_POWER