From b8a6d6777b83b5aaaf7cbe7f6cdc2a32270490d0 Mon Sep 17 00:00:00 2001
From: Lukasz Majewski <lukma@denx.de>
Date: Tue, 15 May 2018 16:26:35 +0200
Subject: [PATCH] pmic: Add support for setting transmission length in uclass
private data
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>
---
drivers/power/pmic/pmic-uclass.c | 10 ++++++++++
include/power/pmic.h | 9 +++++++++
2 files changed, 19 insertions(+)
diff --git a/drivers/power/pmic/pmic-uclass.c b/drivers/power/pmic/pmic-uclass.c
index 5f0f6ff93e..d7e559a615 100644
--- a/drivers/power/pmic/pmic-uclass.c
+++ b/drivers/power/pmic/pmic-uclass.c
@@ -165,7 +165,17 @@ int pmic_clrsetbits(struct udevice *dev, uint reg, uint clr, uint set)
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) = {
.id = UCLASS_PMIC,
.name = "pmic",
+ .pre_probe = pmic_pre_probe,
+ .per_device_auto_alloc_size = sizeof(struct uc_pmic_priv),
};
diff --git a/include/power/pmic.h b/include/power/pmic.h
index 2ca9365fc8..be9de6b4de 100644
--- a/include/power/pmic.h
+++ b/include/power/pmic.h
@@ -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);
+/*
+ * 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 */
#ifdef CONFIG_POWER
--
2.39.5