[PATCH 1/4] spmi: msm: fix version 5 support

Neil Armstrong neil.armstrong at linaro.org
Fri Apr 5 10:21:53 CEST 2024


Properly use ch_offset in msm_spmi_write() reg access.

Fixes: f5a2d6b4b03 ("spmi: msm: add arbiter version 5 support")
Signed-off-by: Neil Armstrong <neil.armstrong at linaro.org>
---
 drivers/spmi/spmi-msm.c | 19 +++++++++----------
 1 file changed, 9 insertions(+), 10 deletions(-)

diff --git a/drivers/spmi/spmi-msm.c b/drivers/spmi/spmi-msm.c
index 5fe8a70abca..97383d8c7b8 100644
--- a/drivers/spmi/spmi-msm.c
+++ b/drivers/spmi/spmi-msm.c
@@ -93,12 +93,16 @@ static int msm_spmi_write(struct udevice *dev, int usid, int pid, int off,
 
 	channel = priv->channel_map[usid][pid];
 
+	if (priv->arb_ver == V5)
+		ch_offset = SPMI_V5_RW_CH_OFFSET(channel);
+	else
+		ch_offset = SPMI_CH_OFFSET(channel);
+
 	/* Disable IRQ mode for the current channel*/
-	writel(0x0,
-	       priv->spmi_chnls + SPMI_CH_OFFSET(channel) + SPMI_REG_CONFIG);
+	writel(0x0, priv->spmi_chnls + ch_offset + SPMI_REG_CONFIG);
 
 	/* Write single byte */
-	writel(val, priv->spmi_chnls + SPMI_CH_OFFSET(channel) + SPMI_REG_WDATA);
+	writel(val, priv->spmi_chnls + ch_offset + SPMI_REG_WDATA);
 
 	/* Prepare write command */
 	reg |= SPMI_CMD_EXT_REG_WRITE_LONG << SPMI_CMD_OPCODE_SHIFT;
@@ -107,18 +111,13 @@ static int msm_spmi_write(struct udevice *dev, int usid, int pid, int off,
 	reg |= (off << SPMI_CMD_ADDR_OFFSET_SHIFT);
 	reg |= 1; /* byte count */
 
-	if (priv->arb_ver == V5)
-		ch_offset = SPMI_V5_RW_CH_OFFSET(channel);
-	else
-		ch_offset = SPMI_CH_OFFSET(channel);
-
 	/* Send write command */
-	writel(reg, priv->spmi_chnls + SPMI_CH_OFFSET(channel) + SPMI_REG_CMD0);
+	writel(reg, priv->spmi_chnls + ch_offset + SPMI_REG_CMD0);
 
 	/* Wait till CMD DONE status */
 	reg = 0;
 	while (!reg) {
-		reg = readl(priv->spmi_chnls + SPMI_CH_OFFSET(channel) +
+		reg = readl(priv->spmi_chnls + ch_offset +
 			    SPMI_REG_STATUS);
 	}
 

-- 
2.34.1



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