brcm2708: remove linux 3.10 support

[openwrt.git] / target / linux / brcm2708 / patches-3.10 / 0148-bcm2708_fb-report-number-of-dma-copies.patch

diff --git a/target/linux/brcm2708/patches-3.10/0148-bcm2708_fb-report-number-of-dma-copies.patch b/target/linux/brcm2708/patches-3.10/0148-bcm2708_fb-report-number-of-dma-copies.patch
deleted file mode 100644 (file)
index a781723..0000000
--- a/target/linux/brcm2708/patches-3.10/0148-bcm2708_fb-report-number-of-dma-copies.patch
+++ /dev/null
@@ -1,125 +0,0 @@
-From ceb70800efa2f4c92f0c89bf472005decd577d65 Mon Sep 17 00:00:00 2001
-From: Luke Diamand <luked@broadcom.com>
-Date: Tue, 31 Dec 2013 23:07:36 +0000
-Subject: [PATCH 148/196] bcm2708_fb: report number of dma copies
-
-Add a counter (exported via debugfs) reporting the
-number of dma copies that the framebuffer driver
-has done, in order to help evaluate different
-optimization strategies.
-
-Signed-off-by: Luke Diamand <luked@broadcom.com>
----
- drivers/video/bcm2708_fb.c | 55 ++++++++++++++++++++++++++++++++++++++++++++++
- 1 file changed, 55 insertions(+)
-
-diff --git a/drivers/video/bcm2708_fb.c b/drivers/video/bcm2708_fb.c
-index c10c5ee..4d7d963 100644
---- a/drivers/video/bcm2708_fb.c
-+++ b/drivers/video/bcm2708_fb.c
-@@ -27,6 +27,7 @@
- #include <linux/clk.h>
- #include <linux/printk.h>
- #include <linux/console.h>
-+#include <linux/debugfs.h>
- 
- #include <mach/dma.h>
- #include <mach/platform.h>
-@@ -58,6 +59,12 @@ struct fbinfo_s {
-       u16 cmap[256];
- };
- 
-+struct bcm2708_fb_stats {
-+      struct debugfs_regset32 regset;
-+      u32 dma_copies;
-+      u32 dma_irqs;
-+};
-+
- struct bcm2708_fb {
-       struct fb_info fb;
-       struct platform_device *dev;
-@@ -69,10 +76,51 @@ struct bcm2708_fb {
-       void __iomem *dma_chan_base;
-       void *cb_base;          /* DMA control blocks */
-       dma_addr_t cb_handle;
-+      struct dentry *debugfs_dir;
-+      struct bcm2708_fb_stats stats;
- };
- 
- #define to_bcm2708(info)      container_of(info, struct bcm2708_fb, fb)
- 
-+static void bcm2708_fb_debugfs_deinit(struct bcm2708_fb *fb)
-+{
-+      debugfs_remove_recursive(fb->debugfs_dir);
-+      fb->debugfs_dir = NULL;
-+}
-+
-+static int bcm2708_fb_debugfs_init(struct bcm2708_fb *fb)
-+{
-+      static struct debugfs_reg32 stats_registers[] = {
-+              {
-+                      "dma_copies",
-+                      offsetof(struct bcm2708_fb_stats, dma_copies)
-+              },
-+      };
-+
-+      fb->debugfs_dir = debugfs_create_dir(DRIVER_NAME, NULL);
-+      if (!fb->debugfs_dir) {
-+              pr_warn("%s: could not create debugfs entry\n",
-+                      __func__);
-+              return -EFAULT;
-+      }
-+
-+      fb->stats.regset.regs = stats_registers;
-+      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)) {
-+              pr_warn("%s: could not create statistics registers\n",
-+                      __func__);
-+              goto fail;
-+      }
-+      return 0;
-+
-+fail:
-+      bcm2708_fb_debugfs_deinit(fb);
-+      return -EFAULT;
-+}
-+
- static int bcm2708_fb_set_bitfields(struct fb_var_screeninfo *var)
- {
-       int ret = 0;
-@@ -443,8 +491,10 @@ static void bcm2708_fb_copyarea(struct fb_info *info,
-       /* end of dma control blocks chain */
-       cb->next = 0;
- 
-+
-       bcm_dma_start(fb->dma_chan_base, fb->cb_handle);
-       bcm_dma_wait_idle(fb->dma_chan_base);
-+      fb->stats.dma_copies++;
- }
- 
- static void bcm2708_fb_imageblit(struct fb_info *info,
-@@ -552,6 +602,9 @@ static int bcm2708_fb_probe(struct platform_device *dev)
-       }
-       memset(fb, 0, sizeof(struct bcm2708_fb));
- 
-+
-+      bcm2708_fb_debugfs_init(fb);
-+
-       fb->cb_base = dma_alloc_writecombine(&dev->dev, SZ_64K,
-                                            &fb->cb_handle, GFP_KERNEL);
-       if (!fb->cb_base) {
-@@ -607,6 +660,8 @@ static int bcm2708_fb_remove(struct platform_device *dev)
- 
-       dma_free_coherent(NULL, PAGE_ALIGN(sizeof(*fb->info)), (void *)fb->info,
-                         fb->dma);
-+      bcm2708_fb_debugfs_deinit(fb);
-+
-       kfree(fb);
- 
-       return 0;
--- 
-1.9.1
-