pinctrl: qcom: spmi: fix debugfs drive strength

stable inclusion
from stable-v6.6.64
commit 6a4645bc3b14e027cea1e8f5d0df02efa7fc23b3
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/IBL4B6

Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=6a4645bc3b14e027cea1e8f5d0df02efa7fc23b3

--------------------------------

commit 6bc0ebfb1d920f13c522545f114cdabb49e9408a upstream.

Commit 723e846 ("pinctrl: qcom: spmi-gpio: Fix the GPIO strength
mapping") fixed a long-standing issue in the Qualcomm SPMI PMIC gpio
driver which had the 'low' and 'high' drive strength settings switched
but failed to update the debugfs interface which still gets this wrong.

Fix the debugfs code so that the exported values match the hardware
settings.

Note that this probably means that most devicetrees that try to describe
the firmware settings got this wrong if the settings were derived from
debugfs. Before the above mentioned commit the settings would have
actually matched the firmware settings even if they were described
incorrectly, but now they are inverted.

Fixes: 723e846 ("pinctrl: qcom: spmi-gpio: Fix the GPIO strength mapping")
Fixes: eadff30 ("pinctrl: Qualcomm SPMI PMIC GPIO pin controller driver")
Cc: Anjelique Melendez <[email protected]>
Cc: [email protected]	# 3.19
Signed-off-by: Johan Hovold <[email protected]>
Reviewed-by: Konrad Dybcio <[email protected]>
Link: https://lore.kernel.org/[email protected]
Signed-off-by: Linus Walleij <[email protected]>
Signed-off-by: Greg Kroah-Hartman <[email protected]>
Signed-off-by: Wen Zhiwei <[email protected]>

Author: jhovold

drivers/pinctrl/qcom/pinctrl-spmi-gpio.c

@@ -667,7 +667,7 @@ static void pmic_gpio_config_dbg_show(struct pinctrl_dev *pctldev,
 		"push-pull", "open-drain", "open-source"
 	};
 	static const char *const strengths[] = {
-		"no", "high", "medium", "low"
+		"no", "low", "medium", "high"
 	};
 
 	pad = pctldev->desc->pins[pin].drv_data;