The patch titled
pm2fb: Permedia 2V memory clock setting
has been added to the -mm tree. Its filename is
pm2fb-permedia-2v-memory-clock-setting.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: pm2fb: Permedia 2V memory clock setting
From: Krzysztof Helt <krzysztof.h1@xxxxx>
Permedia 2V uses its own registers to set a memory clock. The
patch adds these registers and uses them in the set_memclock()
function.
Signed-off-by: Krzysztof Helt <krzysztof.h1@xxxxx>
Signed-off-by: Antonino Daplas <adaplas@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/video/pm2fb.c | 52 +++++++++++++++++++++++++-----------
include/video/permedia2.h | 4 ++
2 files changed, 41 insertions(+), 15 deletions(-)
diff -puN drivers/video/pm2fb.c~pm2fb-permedia-2v-memory-clock-setting drivers/video/pm2fb.c
--- a/drivers/video/pm2fb.c~pm2fb-permedia-2v-memory-clock-setting
+++ a/drivers/video/pm2fb.c
@@ -462,21 +462,43 @@ static void set_memclock(struct pm2fb_pa
int i;
unsigned char m, n, p;
- pm2_mnp(clk, &m, &n, &p);
- WAIT_FIFO(par, 10);
- pm2_RDAC_WR(par, PM2I_RD_MEMORY_CLOCK_3, 6);
- wmb();
- pm2_RDAC_WR(par, PM2I_RD_MEMORY_CLOCK_1, m);
- pm2_RDAC_WR(par, PM2I_RD_MEMORY_CLOCK_2, n);
- wmb();
- pm2_RDAC_WR(par, PM2I_RD_MEMORY_CLOCK_3, 8|p);
- wmb();
- pm2_RDAC_RD(par, PM2I_RD_MEMORY_CLOCK_STATUS);
- rmb();
- for (i = 256;
- i && !(pm2_RD(par, PM2R_RD_INDEXED_DATA) & PM2F_PLL_LOCKED);
- i--)
- ;
+ switch (par->type) {
+ case PM2_TYPE_PERMEDIA2V:
+ pm2v_mnp(clk/2, &m, &n, &p);
+ WAIT_FIFO(par, 8);
+ pm2_WR(par, PM2VR_RD_INDEX_HIGH, PM2VI_RD_MCLK_CONTROL >> 8);
+ pm2v_RDAC_WR(par, PM2VI_RD_MCLK_CONTROL, 0);
+ wmb();
+ pm2v_RDAC_WR(par, PM2VI_RD_MCLK_PRESCALE, m);
+ pm2v_RDAC_WR(par, PM2VI_RD_MCLK_FEEDBACK, n);
+ pm2v_RDAC_WR(par, PM2VI_RD_MCLK_POSTSCALE, p);
+ wmb();
+ pm2v_RDAC_WR(par, PM2VI_RD_MCLK_CONTROL, 1);
+ rmb();
+ for (i = 256;
+ i && !(pm2_RDAC_RD(par, PM2VI_RD_MCLK_CONTROL) & 2);
+ i--)
+ ;
+ pm2_WR(par, PM2VR_RD_INDEX_HIGH, 0);
+ break;
+ case PM2_TYPE_PERMEDIA2:
+ pm2_mnp(clk, &m, &n, &p);
+ WAIT_FIFO(par, 10);
+ pm2_RDAC_WR(par, PM2I_RD_MEMORY_CLOCK_3, 6);
+ wmb();
+ pm2_RDAC_WR(par, PM2I_RD_MEMORY_CLOCK_1, m);
+ pm2_RDAC_WR(par, PM2I_RD_MEMORY_CLOCK_2, n);
+ wmb();
+ pm2_RDAC_WR(par, PM2I_RD_MEMORY_CLOCK_3, 8|p);
+ wmb();
+ pm2_RDAC_RD(par, PM2I_RD_MEMORY_CLOCK_STATUS);
+ rmb();
+ for (i = 256;
+ i && !(pm2_RD(par, PM2R_RD_INDEXED_DATA) & PM2F_PLL_LOCKED);
+ i--)
+ ;
+ break;
+ }
}
static void set_pixclock(struct pm2fb_par* par, u32 clk)
diff -puN include/video/permedia2.h~pm2fb-permedia-2v-memory-clock-setting include/video/permedia2.h
--- a/include/video/permedia2.h~pm2fb-permedia-2v-memory-clock-setting
+++ a/include/video/permedia2.h
@@ -154,6 +154,10 @@
#define PM2VI_RD_CLK1_PRESCALE 0x204
#define PM2VI_RD_CLK1_FEEDBACK 0x205
#define PM2VI_RD_CLK1_POSTSCALE 0x206
+#define PM2VI_RD_MCLK_CONTROL 0x20D
+#define PM2VI_RD_MCLK_PRESCALE 0x20E
+#define PM2VI_RD_MCLK_FEEDBACK 0x20F
+#define PM2VI_RD_MCLK_POSTSCALE 0x210
#define PM2VI_RD_CURSOR_PALETTE 0x303
#define PM2VI_RD_CURSOR_PATTERN 0x400
_
Patches currently in -mm which might be from krzysztof.h1@xxxxx are
skeletonfb-various-corrections.patch
pm2fb-3dlabs-permedia-2v-reference-board-added.patch
pm2fb-permedia-2v-memory-clock-setting.patch
pm2fb-pixclock-setting-restriction.patch
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