i3c: mipi-i3c-hci-pci: Factor out private registers ioremapping

For neatness, factor out private registers ioremapping.

Signed-off-by: Adrian Hunter <adrian.hunter@intel.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20251128064038.55158-7-adrian.hunter@intel.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>

diff --git a/drivers/i3c/master/mipi-i3c-hci/mipi-i3c-hci-pci.c b/drivers/i3c/master/mipi-i3c-hci/mipi-i3c-hci-pci.c
index abc7bad5e069a61ee62bbda9607080ca53bd38ae..1e1f2c42bd7490cbbf23b5f0bd34b78992d693f6 100644 (file)
--- a/drivers/i3c/master/mipi-i3c-hci/mipi-i3c-hci-pci.c
+++ b/drivers/i3c/master/mipi-i3c-hci/mipi-i3c-hci-pci.c
@@ -27,14 +27,18 @@ static DEFINE_IDA(mipi_i3c_hci_pci_ida);
 #define INTEL_RESETS_RESET_DONE                BIT(1)
 #define INTEL_RESETS_TIMEOUT_US                (10 * USEC_PER_MSEC)
 
+static void __iomem *intel_priv(struct pci_dev *pci)
+{
+       resource_size_t base = pci_resource_start(pci, 0);
+
+       return devm_ioremap(&pci->dev, base + INTEL_PRIV_OFFSET, INTEL_PRIV_SIZE);
+}
+
 static int intel_i3c_init(struct pci_dev *pci)
 {
-       void __iomem *priv;
+       void __iomem *priv = intel_priv(pci);
        u32 reg;
 
-       priv = devm_ioremap(&pci->dev,
-                           pci_resource_start(pci, 0) + INTEL_PRIV_OFFSET,
-                           INTEL_PRIV_SIZE);
        if (!priv)
                return -ENOMEM;