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From: Sascha Hauer <s.hauer@pengutronix.de>
To: Barebox List <barebox@lists.infradead.org>
Subject: [PATCH 4/8] pbl: eeprom: return error from eeprom_read()
Date: Fri,  2 Feb 2024 16:31:09 +0100	[thread overview]
Message-ID: <20240202153113.245488-5-s.hauer@pengutronix.de> (raw)
In-Reply-To: <20240202153113.245488-1-s.hauer@pengutronix.de>

Reading from an I2C EEPROM can clearly produce errors, so return
an error code instead of void.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
---
 include/pbl/eeprom.h | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/include/pbl/eeprom.h b/include/pbl/eeprom.h
index df868b1a37..7812402290 100644
--- a/include/pbl/eeprom.h
+++ b/include/pbl/eeprom.h
@@ -5,7 +5,7 @@
 #include <common.h>
 #include <pbl/i2c.h>
 
-static inline void eeprom_read(struct pbl_i2c *i2c, u16 client_addr, u32 addr, void *buf, u16 count)
+static inline int eeprom_read(struct pbl_i2c *i2c, u16 client_addr, u32 addr, void *buf, u16 count)
 {
 	u8 msgbuf[2];
 	struct i2c_msg msg[] = {
@@ -27,8 +27,13 @@ static inline void eeprom_read(struct pbl_i2c *i2c, u16 client_addr, u32 addr, v
 	msg[0].len = i;
 
 	ret = pbl_i2c_xfer(i2c, msg, ARRAY_SIZE(msg));
+	if (ret < 0)
+		return ret;
+
 	if (ret != ARRAY_SIZE(msg))
-		pr_err("Failed to read from eeprom@%x: %d\n", client_addr, ret);
+		return -EIO;
+
+	return 0;
 }
 
 #endif
-- 
2.39.2




  parent reply	other threads:[~2024-02-02 15:31 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2024-02-02 15:31 [PATCH 0/8] ARM: i.MX93: TQMA93xx: Add LGA variant Sascha Hauer
2024-02-02 15:31 ` [PATCH 1/8] i2c: lpi2c: determine clk rate during probe Sascha Hauer
2024-02-02 15:31 ` [PATCH 2/8] i2c: lpi2c: use udelay for timeout loops Sascha Hauer
2024-02-02 15:31 ` [PATCH 3/8] i2c: lpi2c: add PBL support Sascha Hauer
2024-02-02 15:31 ` Sascha Hauer [this message]
2024-02-02 15:55   ` [PATCH 4/8] pbl: eeprom: return error from eeprom_read() Ahmad Fatoum
2024-02-02 15:31 ` [PATCH 5/8] common: add TQ EEPROM support Sascha Hauer
2024-02-02 15:56   ` Ahmad Fatoum
2024-02-02 15:31 ` [PATCH 6/8] ARM: i.MX9: add i2c base address defines Sascha Hauer
2024-02-02 15:31 ` [PATCH 7/8] ARM: i.MX9: rename TQ i.MX93 board to TQMA93XX Sascha Hauer
2024-02-02 15:31 ` [PATCH 8/8] ARM: i.MX: tqma93xx: Add LGA board variant Sascha Hauer

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