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authorLinhua Xu <linhua.xu@unisoc.com>2020-03-25 09:25:27 +0100
committerLinus Walleij <linus.walleij@linaro.org>2020-03-27 22:07:10 +0100
commitbb0f472f96fa2bda2c3e412cd84f16b15d992a56 (patch)
treea399e20b17dfe3342b088c63b78017ca7e713038 /drivers/pinctrl/sprd
parentpinctrl: tegra: Add SFIO/GPIO programming on Tegra194 (diff)
downloadlinux-bb0f472f96fa2bda2c3e412cd84f16b15d992a56.tar.xz
linux-bb0f472f96fa2bda2c3e412cd84f16b15d992a56.zip
pinctrl: sprd: Use the correct pin output configuration
The Spreadtrum pin controller did not supply registers to set high level or low level for output mode, instead we should let the pin controller current configuration drive values on the line. So we should use the PIN_CONFIG_OUTPUT_ENABLE configuration to enable or disable the output mode. [Baolin Wang changes the commit message] Fixes: 41d32cfce1ae ("pinctrl: sprd: Add Spreadtrum pin control driver") Signed-off-by: Linhua Xu <linhua.xu@unisoc.com> Signed-off-by: Baolin Wang <baolin.wang7@gmail.com> Link: https://lore.kernel.org/r/8a6f91b49c17beb218e46b23084f59a7c7260f86.1585124562.git.baolin.wang7@gmail.com Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/sprd')
-rw-r--r--drivers/pinctrl/sprd/pinctrl-sprd.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/drivers/pinctrl/sprd/pinctrl-sprd.c b/drivers/pinctrl/sprd/pinctrl-sprd.c
index ea04bac3b453..8e396104ad1a 100644
--- a/drivers/pinctrl/sprd/pinctrl-sprd.c
+++ b/drivers/pinctrl/sprd/pinctrl-sprd.c
@@ -464,7 +464,7 @@ static int sprd_pinconf_get(struct pinctrl_dev *pctldev, unsigned int pin_id,
case PIN_CONFIG_INPUT_ENABLE:
arg = (reg >> SLEEP_INPUT_SHIFT) & SLEEP_INPUT_MASK;
break;
- case PIN_CONFIG_OUTPUT:
+ case PIN_CONFIG_OUTPUT_ENABLE:
arg = reg & SLEEP_OUTPUT_MASK;
break;
case PIN_CONFIG_DRIVE_STRENGTH:
@@ -635,9 +635,13 @@ static int sprd_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin_id,
shift = SLEEP_INPUT_SHIFT;
}
break;
- case PIN_CONFIG_OUTPUT:
+ case PIN_CONFIG_OUTPUT_ENABLE:
if (is_sleep_config == true) {
- val |= SLEEP_OUTPUT;
+ if (arg > 0)
+ val |= SLEEP_OUTPUT;
+ else
+ val &= ~SLEEP_OUTPUT;
+
mask = SLEEP_OUTPUT_MASK;
shift = SLEEP_OUTPUT_SHIFT;
}