Merge branch 'linux-next' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes...

[GitHub/LineageOS/android_kernel_motorola_exynos9610.git] / drivers / pcmcia / cardbus.c

diff --git a/drivers/pcmcia/cardbus.c b/drivers/pcmcia/cardbus.c
index db77e1f3309a087a6c93c06d251284981df80311..a73b040ddbfb81102fffe2a6da4768155f7689e3 100644 (file)
--- a/drivers/pcmcia/cardbus.c
+++ b/drivers/pcmcia/cardbus.c
@@ -91,7 +91,7 @@ static u_int xlate_rom_addr(void __iomem *b, u_int addr)
 static void cb_release_cis_mem(struct pcmcia_socket * s)
 {
        if (s->cb_cis_virt) {
-               cs_dbg(s, 1, "cb_release_cis_mem()\n");
+               dev_dbg(&s->dev, "cb_release_cis_mem()\n");
                iounmap(s->cb_cis_virt);
                s->cb_cis_virt = NULL;
                s->cb_cis_res = NULL;
@@ -132,7 +132,7 @@ int read_cb_mem(struct pcmcia_socket * s, int space, u_int addr, u_int len, void
        struct pci_dev *dev;
        struct resource *res;
 
-       cs_dbg(s, 3, "read_cb_mem(%d, %#x, %u)\n", space, addr, len);
+       dev_dbg(&s->dev, "read_cb_mem(%d, %#x, %u)\n", space, addr, len);
 
        dev = pci_get_slot(s->cb_dev->subordinate, 0);
        if (!dev)
@@ -184,26 +184,33 @@ fail:
     
 =====================================================================*/
 
-/*
- * Since there is only one interrupt available to CardBus
- * devices, all devices downstream of this device must
- * be using this IRQ.
- */
-static void cardbus_assign_irqs(struct pci_bus *bus, int irq)
+static void cardbus_config_irq_and_cls(struct pci_bus *bus, int irq)
 {
        struct pci_dev *dev;
 
        list_for_each_entry(dev, &bus->devices, bus_list) {
                u8 irq_pin;
 
+               /*
+                * Since there is only one interrupt available to
+                * CardBus devices, all devices downstream of this
+                * device must be using this IRQ.
+                */
                pci_read_config_byte(dev, PCI_INTERRUPT_PIN, &irq_pin);
                if (irq_pin) {
                        dev->irq = irq;
                        pci_write_config_byte(dev, PCI_INTERRUPT_LINE, dev->irq);
                }
 
+               /*
+                * Some controllers transfer very slowly with 0 CLS.
+                * Configure it.  This may fail as CLS configuration
+                * is mandatory only for MWI.
+                */
+               pci_set_cacheline_size(dev);
+
                if (dev->subordinate)
-                       cardbus_assign_irqs(dev->subordinate, irq);
+                       cardbus_config_irq_and_cls(dev->subordinate, irq);
        }
 }
 
@@ -228,7 +235,7 @@ int __ref cb_alloc(struct pcmcia_socket * s)
         */
        pci_bus_size_bridges(bus);
        pci_bus_assign_resources(bus);
-       cardbus_assign_irqs(bus, s->pci_irq);
+       cardbus_config_irq_and_cls(bus, s->pci_irq);
 
        /* socket specific tune function */
        if (s->tune_bridge)