@@ -44,7 +44,7 @@
/*
- * Xilinx calls it "PLB TFT LCD Controller" though it can also be used for
+ * Xilinx calls it "TFT LCD Controller" though it can also be used for
* the VGA port on the Xilinx ML40x board. This is a hardware display
* controller for a 640x480 resolution TFT or VGA screen.
*
@@ -54,11 +54,11 @@
* don't start thinking about scrolling). The second allows the LCD to
* be turned on or off as well as rotated 180 degrees.
*
- * In case of direct PLB access the second control register will be at
+ * In case of direct BUS access the second control register will be at
* an offset of 4 as compared to the DCR access where the offset is 1
* i.e. REG_CTRL. So this is taken care in the function
* xilinx_fb_out32 where it left shifts the offset 2 times in case of
- * direct PLB access.
+ * direct BUS access.
*/
#define NUM_REGS 2
#define REG_FB_ADDR 0
@@ -116,7 +116,7 @@ static struct fb_var_screeninfo xilinx_fb_var = {
};
-#define PLB_ACCESS_FLAG 0x1 /* 1 = PLB, 0 = DCR */
+#define BUS_ACCESS_FLAG 0x1 /* 1 = BUS, 0 = DCR */
struct xilinxfb_drvdata {
@@ -146,14 +146,14 @@ struct xilinxfb_drvdata {
container_of(_info, struct xilinxfb_drvdata, info)
/*
- * The XPS TFT Controller can be accessed through PLB or DCR interface.
+ * The XPS TFT Controller can be accessed through BUS or DCR interface.
* To perform the read/write on the registers we need to check on
* which bus its connected and call the appropriate write API.
*/
static void xilinx_fb_out32(struct xilinxfb_drvdata *drvdata, u32 offset,
u32 val)
{
- if (drvdata->flags & PLB_ACCESS_FLAG)
+ if (drvdata->flags & BUS_ACCESS_FLAG)
out_be32(drvdata->regs + (offset << 2), val);
#ifdef CONFIG_PPC_DCR
else
@@ -235,10 +235,10 @@ static int xilinxfb_assign(struct device *dev,
int rc;
int fbsize = pdata->xvirt * pdata->yvirt * BYTES_PER_PIXEL;
- if (drvdata->flags & PLB_ACCESS_FLAG) {
+ if (drvdata->flags & BUS_ACCESS_FLAG) {
/*
* Map the control registers in if the controller
- * is on direct PLB interface.
+ * is on direct BUS interface.
*/
if (!request_mem_region(physaddr, 8, DRIVER_NAME)) {
dev_err(dev, "Couldn't lock memory region at 0x%08lX\n",
@@ -270,7 +270,7 @@ static int xilinxfb_assign(struct device *dev,
if (!drvdata->fb_virt) {
dev_err(dev, "Could not allocate frame buffer memory\n");
rc = -ENOMEM;
- if (drvdata->flags & PLB_ACCESS_FLAG)
+ if (drvdata->flags & BUS_ACCESS_FLAG)
goto err_fbmem;
else
goto err_region;
@@ -323,7 +323,7 @@ static int xilinxfb_assign(struct device *dev,
goto err_regfb;
}
- if (drvdata->flags & PLB_ACCESS_FLAG) {
+ if (drvdata->flags & BUS_ACCESS_FLAG) {
/* Put a banner in the log (for DEBUG) */
dev_dbg(dev, "regs: phys=%lx, virt=%p\n", physaddr,
drvdata->regs);
@@ -348,11 +348,11 @@ err_cmap:
xilinx_fb_out32(drvdata, REG_CTRL, 0);
err_fbmem:
- if (drvdata->flags & PLB_ACCESS_FLAG)
+ if (drvdata->flags & BUS_ACCESS_FLAG)
iounmap(drvdata->regs);
err_map:
- if (drvdata->flags & PLB_ACCESS_FLAG)
+ if (drvdata->flags & BUS_ACCESS_FLAG)
release_mem_region(physaddr, 8);
err_region:
@@ -384,7 +384,7 @@ static int xilinxfb_release(struct device *dev)
xilinx_fb_out32(drvdata, REG_CTRL, 0);
/* Release the resources, as allocated based on interface */
- if (drvdata->flags & PLB_ACCESS_FLAG) {
+ if (drvdata->flags & BUS_ACCESS_FLAG) {
iounmap(drvdata->regs);
release_mem_region(drvdata->regs_phys, 8);
}
@@ -423,18 +423,18 @@ static int xilinxfb_of_probe(struct platform_device *op)
}
/*
- * To check whether the core is connected directly to DCR or PLB
+ * To check whether the core is connected directly to DCR or BUS
* interface and initialize the tft_access accordingly.
*/
of_property_read_u32(op->dev.of_node, "xlnx,dcr-splb-slave-if",
&tft_access);
/*
- * Fill the resource structure if its direct PLB interface
+ * Fill the resource structure if its direct BUS interface
* otherwise fill the dcr_host structure.
*/
if (tft_access) {
- drvdata->flags |= PLB_ACCESS_FLAG;
+ drvdata->flags |= BUS_ACCESS_FLAG;
rc = of_address_to_resource(op->dev.of_node, 0, &res);
if (rc) {
dev_err(&op->dev, "invalid address\n");
Using only PLB name is wrong for a long time because the same access functions are also used for AXI. s/PLB/BUS/g Signed-off-by: Michal Simek <michal.simek@xilinx.com> --- Changes in v3: - New patch in this patchset based on discussions Changes in v2: None drivers/video/xilinxfb.c | 32 ++++++++++++++++---------------- 1 file changed, 16 insertions(+), 16 deletions(-) -- 1.8.2.3