diff options
| author | Woody Lin <woody_lin@htc.com> | 2017-02-06 14:31:03 +0800 |
|---|---|---|
| committer | Michael Bestas <mkbestas@lineageos.org> | 2019-12-23 23:43:34 +0200 |
| commit | 2402e1b97f9333cdd985f14810ae764ba7335342 (patch) | |
| tree | b876ff13a708ccb1daede9184cfb57b9bd8cf84e | |
| parent | cfaa1d1bd77780cd31c8d51ba9f2365c34c6a752 (diff) | |
pinctrl/qcom: pinctrl-msm.c: Bypass GPIO pins owned by TZ
Accessing pins owned by TZ crashes the system. Avoid to access these
pins in msm_gpio_dbg_show so that we can cat "/d/gpio" to monitor pin
states without crash.
Bug: 34906817
Change-Id: Ib5347dee882299361094e31cfb7950b65716e654
Signed-off-by: Woody Lin <woody_lin@htc.com>
| -rw-r--r-- | drivers/pinctrl/qcom/pinctrl-msm.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/pinctrl/qcom/pinctrl-msm.c b/drivers/pinctrl/qcom/pinctrl-msm.c index 2db0a54eeb8f..9cbd2ab13877 100644 --- a/drivers/pinctrl/qcom/pinctrl-msm.c +++ b/drivers/pinctrl/qcom/pinctrl-msm.c @@ -504,6 +504,10 @@ static void msm_gpio_dbg_show(struct seq_file *s, struct gpio_chip *chip) unsigned i; for (i = 0; i < chip->ngpio; i++, gpio++) { + /* Bypass GPIO pins owned by TZ */ + switch (gpio) + case 81 ... 84: continue; + msm_gpio_dbg_show_one(s, NULL, chip, i, gpio); seq_puts(s, "\n"); } |