@@ -25,7 +25,6 @@
#include <linux/module.h>
#include <linux/of.h>
#include <linux/of_address.h>
-#include <linux/of_irq.h>
#include <linux/of_platform.h>
#include <linux/platform_device.h>
#include <linux/pinctrl/consumer.h>
@@ -1812,15 +1811,14 @@ static struct i2c_algorithm stm32f7_i2c_algo = {
static int stm32f7_i2c_probe(struct platform_device *pdev)
{
- struct device_node *np = pdev->dev.of_node;
struct stm32f7_i2c_dev *i2c_dev;
const struct stm32f7_i2c_setup *setup;
struct resource *res;
- u32 irq_error, irq_event, clk_rate, rise_time, fall_time;
+ u32 clk_rate, rise_time, fall_time;
struct i2c_adapter *adap;
struct reset_control *rst;
dma_addr_t phy_addr;
- int ret;
+ int irq_error, irq_event, ret;
i2c_dev = devm_kzalloc(&pdev->dev, sizeof(*i2c_dev), GFP_KERNEL);
if (!i2c_dev)
@@ -1832,16 +1830,20 @@ static int stm32f7_i2c_probe(struct platform_device *pdev)
return PTR_ERR(i2c_dev->base);
phy_addr = (dma_addr_t)res->start;
- irq_event = irq_of_parse_and_map(np, 0);
- if (!irq_event) {
- dev_err(&pdev->dev, "IRQ event missing or invalid\n");
- return -EINVAL;
+ irq_event = platform_get_irq(pdev, 0);
+ if (irq_event <= 0) {
+ if (irq_event != -EPROBE_DEFER)
+ dev_err(&pdev->dev, "Failed to get IRQ event: %d\n",
+ irq_event);
+ return irq_event ? : -ENOENT;
}
- irq_error = irq_of_parse_and_map(np, 1);
- if (!irq_error) {
- dev_err(&pdev->dev, "IRQ error missing or invalid\n");
- return -EINVAL;
+ irq_error = platform_get_irq(pdev, 1);
+ if (irq_error <= 0) {
+ if (irq_error != -EPROBE_DEFER)
+ dev_err(&pdev->dev, "Failed to get IRQ error: %d\n",
+ irq_error);
+ return irq_error ? : -ENOENT;
}
i2c_dev->clk = devm_clk_get(&pdev->dev, NULL);
During probe, return the "get_irq" error value instead of -EINVAL which allows the driver to be deferred probed if needed. Fix also the case where of_irq_get() returns a negative value. Note : On failure of_irq_get() returns 0 or a negative value while platform_get_irq() returns a negative value. Fixes: aeb068c57214 ("i2c: i2c-stm32f7: add driver") Reviewed-by: Pierre-Yves MORDRET <pierre-yves.mordret@st.com> Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com> Signed-off-by: Fabrice Gasnier <fabrice.gasnier@st.com> --- Changes in v3: - return -ENOENT instead of -ENODEV and shorten the ternary operator as suggested by Wolfram. Changes in v2: - Also check for irq == 0 that means "does not exist" as pointed out by Marc --- drivers/i2c/busses/i2c-stm32f7.c | 26 ++++++++++++++------------ 1 file changed, 14 insertions(+), 12 deletions(-)