From: Fabio Estevam <fabio.estevam@nxp.com>
Date: Sun, 16 Jul 2017 22:56:38 +0000 (-0300)
Subject: PCI: qcom: Use gpiod_set_value_cansleep() to allow reset via expanders
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=a8c2038f615ac522aa9eb55dff1b7979bef0f794;p=GitHub%2Fmoto-9609%2Fandroid_kernel_motorola_exynos9610.git

PCI: qcom: Use gpiod_set_value_cansleep() to allow reset via expanders

The reset GPIO can be connected to a I2C or SPI IO expander, which may
sleep, so it is safer to use the gpiod_set_value_cansleep() variant
instead.

Signed-off-by: Fabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Stanimir Varbanov <svarbanov@mm-sol.com>
---

diff --git a/drivers/pci/dwc/pcie-qcom.c b/drivers/pci/dwc/pcie-qcom.c
index 26e84a957c35..e0654c01ca19 100644
--- a/drivers/pci/dwc/pcie-qcom.c
+++ b/drivers/pci/dwc/pcie-qcom.c
@@ -142,13 +142,13 @@ struct qcom_pcie {
 
 static void qcom_ep_reset_assert(struct qcom_pcie *pcie)
 {
-	gpiod_set_value(pcie->reset, 1);
+	gpiod_set_value_cansleep(pcie->reset, 1);
 	usleep_range(PERST_DELAY_US, PERST_DELAY_US + 500);
 }
 
 static void qcom_ep_reset_deassert(struct qcom_pcie *pcie)
 {
-	gpiod_set_value(pcie->reset, 0);
+	gpiod_set_value_cansleep(pcie->reset, 0);
 	usleep_range(PERST_DELAY_US, PERST_DELAY_US + 500);
 }