From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Douglas Anderson , Stephen Boyd , Bjorn Andersson , Linus Walleij , Sasha Levin Subject: [PATCH 4.9 049/141] pinctrl: ssbi-gpio: Fix pm8xxx_pin_config_get() to be compliant Date: Sun, 11 Nov 2018 14:25:08 -0800 Message-Id: <20181111221634.181538423@linuxfoundation.org> In-Reply-To: <20181111221627.853046496@linuxfoundation.org> References: <20181111221627.853046496@linuxfoundation.org> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit List-ID: 4.9-stable review patch. If anyone has any objections, please let me know. ------------------ From: Douglas Anderson [ Upstream commit b432414b996d32a1bd9afe2bd595bd5729c1477f ] If you look at "pinconf-groups" in debugfs for ssbi-gpio you'll notice it looks like nonsense. The problem is fairly well described in commit 1cf86bc21257 ("pinctrl: qcom: spmi-gpio: Fix pmic_gpio_config_get() to be compliant") and commit 05e0c828955c ("pinctrl: msm: Fix msm_config_group_get() to be compliant"), but it was pointed out that ssbi-gpio has the same problem. Let's fix it there too. Fixes: b4c45fe974bc ("pinctrl: qcom: ssbi: Family A gpio & mpp drivers") Signed-off-by: Douglas Anderson Reviewed-by: Stephen Boyd Reviewed-by: Bjorn Andersson Signed-off-by: Linus Walleij Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/pinctrl/qcom/pinctrl-ssbi-gpio.c | 28 +++++++++++++++++++++------- 1 file changed, 21 insertions(+), 7 deletions(-) --- a/drivers/pinctrl/qcom/pinctrl-ssbi-gpio.c +++ b/drivers/pinctrl/qcom/pinctrl-ssbi-gpio.c @@ -260,22 +260,32 @@ static int pm8xxx_pin_config_get(struct switch (param) { case PIN_CONFIG_BIAS_DISABLE: - arg = pin->bias == PM8XXX_GPIO_BIAS_NP; + if (pin->bias != PM8XXX_GPIO_BIAS_NP) + return -EINVAL; + arg = 1; break; case PIN_CONFIG_BIAS_PULL_DOWN: - arg = pin->bias == PM8XXX_GPIO_BIAS_PD; + if (pin->bias != PM8XXX_GPIO_BIAS_PD) + return -EINVAL; + arg = 1; break; case PIN_CONFIG_BIAS_PULL_UP: - arg = pin->bias <= PM8XXX_GPIO_BIAS_PU_1P5_30; + if (pin->bias > PM8XXX_GPIO_BIAS_PU_1P5_30) + return -EINVAL; + arg = 1; break; case PM8XXX_QCOM_PULL_UP_STRENGTH: arg = pin->pull_up_strength; break; case PIN_CONFIG_BIAS_HIGH_IMPEDANCE: - arg = pin->disable; + if (!pin->disable) + return -EINVAL; + arg = 1; break; case PIN_CONFIG_INPUT_ENABLE: - arg = pin->mode == PM8XXX_GPIO_MODE_INPUT; + if (pin->mode != PM8XXX_GPIO_MODE_INPUT) + return -EINVAL; + arg = 1; break; case PIN_CONFIG_OUTPUT: if (pin->mode & PM8XXX_GPIO_MODE_OUTPUT) @@ -290,10 +300,14 @@ static int pm8xxx_pin_config_get(struct arg = pin->output_strength; break; case PIN_CONFIG_DRIVE_PUSH_PULL: - arg = !pin->open_drain; + if (pin->open_drain) + return -EINVAL; + arg = 1; break; case PIN_CONFIG_DRIVE_OPEN_DRAIN: - arg = pin->open_drain; + if (!pin->open_drain) + return -EINVAL; + arg = 1; break; default: return -EINVAL;