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4295485719
openwrt/target/linux/brcm2708/patches-4.19/950-0337-video-bcm2708_fb-Clean-up-coding-style-issues.patch
Álvaro Fernández Rojas 4295485719 brcm2708: add linux 4.19 support 
Boot tested on Raspberry Pi B+ (BCM2708) and Raspberry Pi 2 (BCM2709)

Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
2019-07-14 12:44:14 +02:00

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From 9236c0f31f2052bbcd6386367ace3ebfad57da3d Mon Sep 17 00:00:00 2001
From: Dave Stevenson <dave.stevenson@raspberrypi.org>
Date: Fri, 25 Jan 2019 17:32:54 +0000
Subject: [PATCH 337/703] video: bcm2708_fb: Clean up coding style issues
Now checkpatch clean except for 2 long lines, missing
SPDX header, and no DT documentation.
Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
---
drivers/video/fbdev/bcm2708_fb.c | 96 ++++++++++++++------------------
1 file changed, 42 insertions(+), 54 deletions(-)
--- a/drivers/video/fbdev/bcm2708_fb.c
+++ b/drivers/video/fbdev/bcm2708_fb.c
@@ -41,7 +41,7 @@
#define MODULE_NAME "bcm2708_fb"
#ifdef BCM2708_FB_DEBUG
-#define print_debug(fmt, ...) pr_debug("%s:%s:%d: "fmt, \
+#define print_debug(fmt, ...) pr_debug("%s:%s:%d: " fmt, \
MODULE_NAME, __func__, __LINE__, ##__VA_ARGS__)
#else
#define print_debug(fmt, ...)
@@ -57,7 +57,7 @@ static int fbheight = 480; /* module par
static int fbdepth = 32; /* module parameter */
static int fbswap; /* module parameter */
-static u32 dma_busy_wait_threshold = 1<<15;
+static u32 dma_busy_wait_threshold = 1 << 15;
module_param(dma_busy_wait_threshold, int, 0644);
MODULE_PARM_DESC(dma_busy_wait_threshold, "Busy-wait for DMA completion below this area");
@@ -132,8 +132,8 @@ static int bcm2708_fb_debugfs_init(struc
fb->stats.regset.nregs = ARRAY_SIZE(stats_registers);
fb->stats.regset.base = &fb->stats;
- if (!debugfs_create_regset32(
- "stats", 0444, fb->debugfs_dir, &fb->stats.regset)) {
+ if (!debugfs_create_regset32("stats", 0444, fb->debugfs_dir,
+ &fb->stats.regset)) {
pr_warn("%s: could not create statistics registers\n",
__func__);
goto fail;
@@ -223,25 +223,22 @@ static int bcm2708_fb_check_var(struct f
{
/* info input, var output */
print_debug("%s(%p) %dx%d (%dx%d), %d, %d\n",
- __func__,
- info,
- info->var.xres, info->var.yres, info->var.xres_virtual,
- info->var.yres_virtual, (int)info->screen_size,
- info->var.bits_per_pixel);
- print_debug("%s(%p) %dx%d (%dx%d), %d\n", __func__, var,
- var->xres, var->yres, var->xres_virtual, var->yres_virtual,
- var->bits_per_pixel);
+ __func__, info, info->var.xres, info->var.yres,
+ info->var.xres_virtual, info->var.yres_virtual,
+ (int)info->screen_size, info->var.bits_per_pixel);
+ print_debug("%s(%p) %dx%d (%dx%d), %d\n", __func__, var, var->xres,
+ var->yres, var->xres_virtual, var->yres_virtual,
+ var->bits_per_pixel);
if (!var->bits_per_pixel)
var->bits_per_pixel = 16;
if (bcm2708_fb_set_bitfields(var) != 0) {
pr_err("%s: invalid bits_per_pixel %d\n", __func__,
- var->bits_per_pixel);
+ var->bits_per_pixel);
return -EINVAL;
}
-
if (var->xres_virtual < var->xres)
var->xres_virtual = var->xres;
/* use highest possible virtual resolution */
@@ -249,7 +246,7 @@ static int bcm2708_fb_check_var(struct f
var->yres_virtual = 480;
pr_err("%s: virtual resolution set to maximum of %dx%d\n",
- __func__, var->xres_virtual, var->yres_virtual);
+ __func__, var->xres_virtual, var->yres_virtual);
}
if (var->yres_virtual < var->yres)
var->yres_virtual = var->yres;
@@ -294,9 +291,9 @@ static int bcm2708_fb_set_par(struct fb_
int ret;
print_debug("%s(%p) %dx%d (%dx%d), %d, %d\n", __func__, info,
- info->var.xres, info->var.yres, info->var.xres_virtual,
- info->var.yres_virtual, (int)info->screen_size,
- info->var.bits_per_pixel);
+ info->var.xres, info->var.yres, info->var.xres_virtual,
+ info->var.yres_virtual, (int)info->screen_size,
+ info->var.bits_per_pixel);
ret = rpi_firmware_property_list(fb->fw, &fbinfo, sizeof(fbinfo));
if (ret) {
@@ -328,12 +325,10 @@ static int bcm2708_fb_set_par(struct fb_
return -ENOMEM;
}
- print_debug(
- "%s: start = %p,%p width=%d, height=%d, bpp=%d, pitch=%d size=%d\n",
- __func__,
- (void *)fb->fb.screen_base, (void *)fb->fb_bus_address,
- fbinfo.xres, fbinfo.yres, fbinfo.bpp,
- fbinfo.pitch, (int)fb->fb.screen_size);
+ print_debug("%s: start = %p,%p width=%d, height=%d, bpp=%d, pitch=%d size=%d\n",
+ __func__, (void *)fb->fb.screen_base,
+ (void *)fb->fb_bus_address, fbinfo.xres, fbinfo.yres,
+ fbinfo.bpp, fbinfo.pitch, (int)fb->fb.screen_size);
return 0;
}
@@ -345,7 +340,6 @@ static inline u32 convert_bitfield(int v
return (val >> (16 - bf->length) & mask) << bf->offset;
}
-
static int bcm2708_fb_setcolreg(unsigned int regno, unsigned int red,
unsigned int green, unsigned int blue,
unsigned int transp, struct fb_info *info)
@@ -379,11 +373,11 @@ static int bcm2708_fb_setcolreg(unsigned
packet->offset = 0;
packet->length = regno + 1;
memcpy(packet->cmap, fb->gpu_cmap,
- sizeof(packet->cmap));
+ sizeof(packet->cmap));
ret = rpi_firmware_property(fb->fw,
- RPI_FIRMWARE_FRAMEBUFFER_SET_PALETTE,
- packet,
- (2 + packet->length) * sizeof(u32));
+ RPI_FIRMWARE_FRAMEBUFFER_SET_PALETTE,
+ packet,
+ (2 + packet->length) * sizeof(u32));
if (ret || packet->offset)
dev_err(info->device,
"Failed to set palette (%d,%u)\n",
@@ -392,9 +386,9 @@ static int bcm2708_fb_setcolreg(unsigned
}
} else if (regno < 16) {
fb->cmap[regno] = convert_bitfield(transp, &fb->fb.var.transp) |
- convert_bitfield(blue, &fb->fb.var.blue) |
- convert_bitfield(green, &fb->fb.var.green) |
- convert_bitfield(red, &fb->fb.var.red);
+ convert_bitfield(blue, &fb->fb.var.blue) |
+ convert_bitfield(green, &fb->fb.var.green) |
+ convert_bitfield(red, &fb->fb.var.red);
}
return regno > 255;
}
@@ -437,8 +431,8 @@ static int bcm2708_fb_pan_display(struct
info->var.yoffset = var->yoffset;
result = bcm2708_fb_set_par(info);
if (result != 0)
- pr_err("%s(%d,%d) returns=%d\n", __func__,
- var->xoffset, var->yoffset, result);
+ pr_err("%s(%d,%d) returns=%d\n", __func__, var->xoffset,
+ var->yoffset, result);
return result;
}
@@ -468,9 +462,8 @@ static void dma_memcpy(struct bcm2708_fb
cb->info |= BCM2708_DMA_INT_EN;
bcm_dma_start(fb->dma_chan_base, fb->cb_handle);
while (bcm_dma_is_busy(dma_chan)) {
- wait_event_interruptible(
- fb->dma_waitq,
- !bcm_dma_is_busy(dma_chan));
+ wait_event_interruptible(fb->dma_waitq,
+ !bcm_dma_is_busy(dma_chan));
}
fb->stats.dma_irqs++;
}
@@ -478,9 +471,9 @@ static void dma_memcpy(struct bcm2708_fb
}
/* address with no aliases */
-#define INTALIAS_NORMAL(x) ((x)&~0xc0000000)
+#define INTALIAS_NORMAL(x) ((x) & ~0xc0000000)
/* cache coherent but non-allocating in L1 and L2 */
-#define INTALIAS_L1L2_NONALLOCATING(x) (((x)&~0xc0000000)|0x80000000)
+#define INTALIAS_L1L2_NONALLOCATING(x) (((x) & ~0xc0000000) | 0x80000000)
static long vc_mem_copy(struct bcm2708_fb *fb, struct fb_dmacopy *ioparam)
{
@@ -498,15 +491,15 @@ static long vc_mem_copy(struct bcm2708_f
if (!fb->gpu.base || !fb->gpu.length) {
pr_err("[%s]: Unable to determine gpu memory (%x,%x)\n",
- __func__, fb->gpu.base, fb->gpu.length);
+ __func__, fb->gpu.base, fb->gpu.length);
return -EFAULT;
}
if (INTALIAS_NORMAL(ioparam->src) < fb->gpu.base ||
INTALIAS_NORMAL(ioparam->src) >= fb->gpu.base + fb->gpu.length) {
pr_err("[%s]: Invalid memory access %x (%x-%x)", __func__,
- INTALIAS_NORMAL(ioparam->src), fb->gpu.base,
- fb->gpu.base + fb->gpu.length);
+ INTALIAS_NORMAL(ioparam->src), fb->gpu.base,
+ fb->gpu.base + fb->gpu.length);
return -EFAULT;
}
@@ -528,8 +521,7 @@ static long vc_mem_copy(struct bcm2708_f
dma_memcpy(fb, bus_addr,
INTALIAS_L1L2_NONALLOCATING((dma_addr_t)p), size);
if (copy_to_user(q, buf, s) != 0) {
- pr_err("[%s]: failed to copy-to-user\n",
- __func__);
+ pr_err("[%s]: failed to copy-to-user\n", __func__);
rc = -EFAULT;
goto out;
}
@@ -755,7 +747,6 @@ static void bcm2708_fb_copyarea(struct f
/* end of dma control blocks chain */
cb->next = 0;
-
if (pixels < dma_busy_wait_threshold) {
bcm_dma_start(fb->dma_chan_base, fb->cb_handle);
bcm_dma_wait_idle(fb->dma_chan_base);
@@ -765,9 +756,8 @@ static void bcm2708_fb_copyarea(struct f
cb->info |= BCM2708_DMA_INT_EN;
bcm_dma_start(fb->dma_chan_base, fb->cb_handle);
while (bcm_dma_is_busy(dma_chan)) {
- wait_event_interruptible(
- fb->dma_waitq,
- !bcm_dma_is_busy(dma_chan));
+ wait_event_interruptible(fb->dma_waitq,
+ !bcm_dma_is_busy(dma_chan));
}
fb->stats.dma_irqs++;
}
@@ -863,7 +853,7 @@ static int bcm2708_fb_register(struct bc
return ret;
print_debug("BCM2708FB: registering framebuffer (%dx%d@%d) (%d)\n",
- fbwidth, fbheight, fbdepth, fbswap);
+ fbwidth, fbheight, fbdepth, fbswap);
ret = register_framebuffer(&fb->fb);
print_debug("BCM2708FB: register framebuffer (%d)\n", ret);
@@ -893,7 +883,7 @@ static int bcm2708_fb_probe(struct platf
if (!fw)
return -EPROBE_DEFER;
- fb = kzalloc(sizeof(struct bcm2708_fb), GFP_KERNEL);
+ fb = kzalloc(sizeof(*fb), GFP_KERNEL);
if (!fb) {
ret = -ENOMEM;
goto free_region;
@@ -927,7 +917,6 @@ static int bcm2708_fb_probe(struct platf
goto free_dma_chan;
}
-
pr_info("BCM2708FB: allocated DMA channel %d\n", fb->dma_chan);
fb->dev = dev;
@@ -936,9 +925,8 @@ static int bcm2708_fb_probe(struct platf
/* failure here isn't fatal, but we'll fail in vc_mem_copy if
* fb->gpu is not valid
*/
- rpi_firmware_property(fb->fw,
- RPI_FIRMWARE_GET_VC_MEMORY,
- &fb->gpu, sizeof(fb->gpu));
+ rpi_firmware_property(fb->fw, RPI_FIRMWARE_GET_VC_MEMORY, &fb->gpu,
+ sizeof(fb->gpu));
ret = bcm2708_fb_register(fb);
if (ret == 0) {
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