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authorAndy Shevchenko <andriy.shevchenko@linux.intel.com>2022-06-06 19:41:29 +0300
committerLee Jones <lee@kernel.org>2022-07-14 12:50:14 +0300
commit6e3b29dbc119fa86bc25f822e8c6166552086531 (patch)
tree4a925a167c664d584a44d90d421f2acf005ca5b0 /drivers/mfd
parentc551bd81d198bf1dcd4398d5454acdc0309dbe77 (diff)
downloadlinux-6e3b29dbc119fa86bc25f822e8c6166552086531.tar.xz
mfd: lpc_ich: Factor out lpc_ich_enable_spi_write()
Factor out duplicate code to lpc_ich_enable_spi_write() helper function. Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com> Tested-by: Henning Schild <henning.schild@siemens.com> Acked-by: Hans de Goede <hdegoede@redhat.com> Acked-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Lee Jones <lee@kernel.org>
Diffstat (limited to 'drivers/mfd')
-rw-r--r--drivers/mfd/lpc_ich.c31
1 files changed, 14 insertions, 17 deletions
diff --git a/drivers/mfd/lpc_ich.c b/drivers/mfd/lpc_ich.c
index 9ffab9aafd81..d9175cb8a2d5 100644
--- a/drivers/mfd/lpc_ich.c
+++ b/drivers/mfd/lpc_ich.c
@@ -1100,35 +1100,32 @@ static bool lpc_ich_byt_set_writeable(void __iomem *base, void *data)
return val & BYT_BCR_WPD;
}
-static bool lpc_ich_lpt_set_writeable(void __iomem *base, void *data)
+static bool lpc_ich_set_writeable(struct pci_bus *bus, unsigned int devfn)
{
- struct pci_dev *pdev = data;
u32 bcr;
- pci_read_config_dword(pdev, BCR, &bcr);
+ pci_bus_read_config_dword(bus, devfn, BCR, &bcr);
if (!(bcr & BCR_WPD)) {
bcr |= BCR_WPD;
- pci_write_config_dword(pdev, BCR, bcr);
- pci_read_config_dword(pdev, BCR, &bcr);
+ pci_bus_write_config_dword(bus, devfn, BCR, bcr);
+ pci_bus_read_config_dword(bus, devfn, BCR, &bcr);
}
return bcr & BCR_WPD;
}
-static bool lpc_ich_bxt_set_writeable(void __iomem *base, void *data)
+static bool lpc_ich_lpt_set_writeable(void __iomem *base, void *data)
{
- unsigned int spi = PCI_DEVFN(13, 2);
- struct pci_bus *bus = data;
- u32 bcr;
+ struct pci_dev *pdev = data;
- pci_bus_read_config_dword(bus, spi, BCR, &bcr);
- if (!(bcr & BCR_WPD)) {
- bcr |= BCR_WPD;
- pci_bus_write_config_dword(bus, spi, BCR, bcr);
- pci_bus_read_config_dword(bus, spi, BCR, &bcr);
- }
+ return lpc_ich_set_writeable(pdev->bus, pdev->devfn);
+}
- return bcr & BCR_WPD;
+static bool lpc_ich_bxt_set_writeable(void __iomem *base, void *data)
+{
+ struct pci_dev *pdev = data;
+
+ return lpc_ich_set_writeable(pdev->bus, PCI_DEVFN(13, 2));
}
static int lpc_ich_init_spi(struct pci_dev *dev)
@@ -1185,7 +1182,7 @@ static int lpc_ich_init_spi(struct pci_dev *dev)
res->end = res->start + SPIBASE_APL_SZ - 1;
info->set_writeable = lpc_ich_bxt_set_writeable;
- info->data = bus;
+ info->data = dev;
}
pci_bus_write_config_byte(bus, p2sb, 0xe1, 0x1);