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ramips: 5.15: handle return from device_reset in I2C driver

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Handle return from device reset in I2C driver. Don't fail on
device_reset error but print a warning.

Fix compilation warning:
sound/soc/ralink/ralink-i2s.c: In function 'ralink_i2s_probe':
sound/soc/ralink/ralink-i2s.c:885:9: error: ignoring return value of 'device_reset' declared with attribute 'warn_unused_result' [-Werror=unused-result]
  885 |         device_reset(&pdev->dev);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
This commit is contained in:
Christian Marangi 2023-05-06 22:40:39 +02:00
parent 7f54fa575b
commit b786d744ef
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1 changed files with 7 additions and 2 deletions
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9
target/linux/ramips/patches-5.15/825-i2c-MIPS-adds-ralink-I2C-driver.patch
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@ -69,7 +69,7 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
obj-$(CONFIG_I2C_QUP) += i2c-qup.o
--- /dev/null
+++ b/drivers/i2c/busses/i2c-ralink.c
@@ -0,0 +1,435 @@
@@ -0,0 +1,440 @@
+/*
+ * drivers/i2c/busses/i2c-ralink.c
+ *
@ -245,7 +245,12 @@ Signed-off-by: John Crispin <blogic@openwrt.org>
+
+static void rt_i2c_reset(struct rt_i2c *i2c)
+{
+ device_reset(i2c->adap.dev.parent);
+ int ret;
+
+ ret = device_reset(i2c->adap.dev.parent);
+ if (ret)
+ dev_err(i2c->dev, "Failed to reset device");
+
+ barrier();
+ rt_i2c_w32(i2c, i2c->clk_div, REG_CLKDIV_REG);
+}