Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-26 14:12:06 +00:00
Code Issues Packages Projects Releases Wiki Activity

pinctrl: mcp23s08: fix irq setup order

Browse Source 
When using mcp23s08 module with gpio-keys, often (50% of boots)
it fails to get irq numbers with message:
"gpio-keys keys: Unable to get irq number for GPIO 0, error -6".
Seems that irqs must be setup before devm_gpiochip_add_data().

Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Mastykin <mastichi@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Dmitry Mastykin 2017-12-28 18:19:24 +03:00 committed by Linus Walleij
parent d3452f1d88
commit 02e389e63e
1 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/pinctrl/pinctrl-mcp23s08.c
View File

@ -890,16 +890,16 @@ static int mcp23s08_probe_one(struct mcp23s08 *mcp, struct device *dev,
goto fail;
}
ret = devm_gpiochip_add_data(dev, &mcp->chip, mcp);
if (ret < 0)
goto fail;
if (mcp->irq && mcp->irq_controller) {
ret = mcp23s08_irq_setup(mcp);
if (ret)
goto fail;
}
ret = devm_gpiochip_add_data(dev, &mcp->chip, mcp);
if (ret < 0)
goto fail;
mcp->pinctrl_desc.name = "mcp23xxx-pinctrl";
mcp->pinctrl_desc.pctlops = &mcp_pinctrl_ops;
mcp->pinctrl_desc.confops = &mcp_pinconf_ops;