AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2025-01-19 03:16:11 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

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

Browse Source 
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>
This commit is contained in:
Fabio Estevam 2017-07-16 19:56:38 -03:00 committed by Bjorn Helgaas
parent 8c934095fa
commit a8c2038f61
1 changed files with 2 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/pci/dwc/pcie-qcom.c
View File

@ -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);
}