ipu_common: Add ldb_clk for use in parenting the pixel clock

Add ldb_clk for use in parenting the pixel clock.

Signed-off-by: Eric Nelson <eric.nelson@boundarydevices.com>
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>

diff --git a/drivers/video/ipu_common.c b/drivers/video/ipu_common.c
index e43a6ec..2020da9 100644 (file)
--- a/drivers/video/ipu_common.c
+++ b/drivers/video/ipu_common.c
@@ -219,8 +219,15 @@ static struct clk ipu_clk = {
        .usecount = 0,
 };
 
+static struct clk ldb_clk = {
+       .name = "ldb_clk",
+       .rate = 65000000,
+       .usecount = 0,
+};
+
 /* Globals */
 struct clk *g_ipu_clk;
+struct clk *g_ldb_clk;
 unsigned char g_ipu_clk_enabled;
 struct clk *g_di_clk[2];
 struct clk *g_pixel_clk[2];
@@ -343,7 +350,7 @@ static int ipu_pixel_clk_set_parent(struct clk *clk, struct clk *parent)
 
        if (parent == g_ipu_clk)
                di_gen &= ~DI_GEN_DI_CLK_EXT;
-       else if (!IS_ERR(g_di_clk[clk->id]) && parent == g_di_clk[clk->id])
+       else if (!IS_ERR(g_di_clk[clk->id]) && parent == g_ldb_clk)
                di_gen |= DI_GEN_DI_CLK_EXT;
        else
                return -EINVAL;
@@ -429,7 +436,8 @@ int ipu_probe(void)
 
        g_ipu_clk = &ipu_clk;
        debug("ipu_clk = %u\n", clk_get_rate(g_ipu_clk));
-
+       g_ldb_clk = &ldb_clk;
+       debug("ldb_clk = %u\n", clk_get_rate(g_ldb_clk));
        ipu_reset();
 
        clk_set_parent(g_pixel_clk[0], g_ipu_clk);

diff --git a/drivers/video/ipu_disp.c b/drivers/video/ipu_disp.c
index fa8fb2c..b4116df 100644 (file)
--- a/drivers/video/ipu_disp.c
+++ b/drivers/video/ipu_disp.c
@@ -64,6 +64,7 @@ static int dmfc_size_28, dmfc_size_29, dmfc_size_24, dmfc_size_27, dmfc_size_23;
 int g_di1_tvout;
 
 extern struct clk *g_ipu_clk;
+extern struct clk *g_ldb_clk;
 extern struct clk *g_di_clk[2];
 extern struct clk *g_pixel_clk[2];
 
@@ -941,7 +942,7 @@ int32_t ipu_init_sync_panel(int disp, uint32_t pixel_clk,
                                udelay(10000);
                        }
                }
-               clk_set_parent(g_pixel_clk[disp], g_di_clk[disp]);
+               clk_set_parent(g_pixel_clk[disp], g_ldb_clk);
        } else {
                if (clk_get_usecount(g_pixel_clk[disp]) != 0)
                        clk_set_parent(g_pixel_clk[disp], g_ipu_clk);