修改led为gpio

hc

2024-10-12 a5969cabbb4660eab42b6ef0412cbbd1200cf14d

 kernel/drivers/i2c/busses/i2c-imx-lpi2c.c
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@@ -200,8 +200,8 @@
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 /* CLKLO = I2C_CLK_RATIO * CLKHI, SETHOLD = CLKHI, DATAVD = CLKHI/2 */
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 static int lpi2c_imx_config(struct lpi2c_imx_struct *lpi2c_imx)
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 {
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-	u8 prescale, filt, sethold, clkhi, clklo, datavd;
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-	unsigned int clk_rate, clk_cycle;
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+	u8 prescale, filt, sethold, datavd;
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+	unsigned int clk_rate, clk_cycle, clkhi, clklo;
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 	enum lpi2c_imx_pincfg pincfg;
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 	unsigned int temp;
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@@ -462,6 +462,8 @@
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 		if (num == 1 && msgs[0].len == 0)
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 			goto stop;
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+		lpi2c_imx->rx_buf = NULL;
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+		lpi2c_imx->tx_buf = NULL;
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 		lpi2c_imx->delivered = 0;
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 		lpi2c_imx->msglen = msgs[i].len;
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 		init_completion(&lpi2c_imx->complete);
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@@ -502,10 +504,14 @@
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 static irqreturn_t lpi2c_imx_isr(int irq, void *dev_id)
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 {
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 	struct lpi2c_imx_struct *lpi2c_imx = dev_id;
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+	unsigned int enabled;
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 	unsigned int temp;
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+
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+	enabled = readl(lpi2c_imx->base + LPI2C_MIER);
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 	lpi2c_imx_intctrl(lpi2c_imx, 0);
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 	temp = readl(lpi2c_imx->base + LPI2C_MSR);
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+	temp &= enabled;
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 	if (temp & MSR_RDF)
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 		lpi2c_imx_read_rxfifo(lpi2c_imx);