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authorTomi Valkeinen <tomi.valkeinen@ti.com>2011-08-22 13:02:52 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2012-03-12 10:32:58 -0700
commit1825e65dbb5370d5cebd13dbdfe4bce86caf351c (patch)
treeecc375351dd486c44ca74e6eb1146d87e1ef29c5
parent2d339926c077870a29181d37839920ce3ecd7409 (diff)
downloadlwn-1825e65dbb5370d5cebd13dbdfe4bce86caf351c.tar.gz
lwn-1825e65dbb5370d5cebd13dbdfe4bce86caf351c.zip
OMAP: DSS2: HDMI: use default dividers
commit 8d88767a4377171752c22ac39bcb2b505eb751da upstream. Use default regn and regm2 dividers in the hdmi driver if the board file does not define them. Cc: Mythri P K <mythripk@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--arch/arm/mach-omap2/board-4430sdp.c9
-rw-r--r--drivers/video/omap2/dss/hdmi.c15
2 files changed, 13 insertions, 11 deletions
diff --git a/arch/arm/mach-omap2/board-4430sdp.c b/arch/arm/mach-omap2/board-4430sdp.c
index 63de2d396e2d..f515fa29a105 100644
--- a/arch/arm/mach-omap2/board-4430sdp.c
+++ b/arch/arm/mach-omap2/board-4430sdp.c
@@ -617,15 +617,6 @@ static struct omap_dss_device sdp4430_hdmi_device = {
.name = "hdmi",
.driver_name = "hdmi_panel",
.type = OMAP_DISPLAY_TYPE_HDMI,
- .clocks = {
- .dispc = {
- .dispc_fclk_src = OMAP_DSS_CLK_SRC_FCK,
- },
- .hdmi = {
- .regn = 15,
- .regm2 = 1,
- },
- },
.platform_enable = sdp4430_panel_enable_hdmi,
.platform_disable = sdp4430_panel_disable_hdmi,
.channel = OMAP_DSS_CHANNEL_DIGIT,
diff --git a/drivers/video/omap2/dss/hdmi.c b/drivers/video/omap2/dss/hdmi.c
index b0555f4f0a78..f3369cf3337b 100644
--- a/drivers/video/omap2/dss/hdmi.c
+++ b/drivers/video/omap2/dss/hdmi.c
@@ -40,6 +40,9 @@
#include "hdmi.h"
#include "dss_features.h"
+#define HDMI_DEFAULT_REGN 15
+#define HDMI_DEFAULT_REGM2 1
+
static struct {
struct mutex lock;
struct omap_display_platform_data *pdata;
@@ -1069,7 +1072,11 @@ static void hdmi_compute_pll(struct omap_dss_device *dssdev, int phy,
* Input clock is predivided by N + 1
* out put of which is reference clk
*/
- pi->regn = dssdev->clocks.hdmi.regn;
+ if (dssdev->clocks.hdmi.regn == 0)
+ pi->regn = HDMI_DEFAULT_REGN;
+ else
+ pi->regn = dssdev->clocks.hdmi.regn;
+
refclk = clkin / (pi->regn + 1);
/*
@@ -1077,7 +1084,11 @@ static void hdmi_compute_pll(struct omap_dss_device *dssdev, int phy,
* Multiplying by 100 to avoid fractional part removal
*/
pi->regm = (phy * 100 / (refclk)) / 100;
- pi->regm2 = dssdev->clocks.hdmi.regm2;
+
+ if (dssdev->clocks.hdmi.regm2 == 0)
+ pi->regm2 = HDMI_DEFAULT_REGM2;
+ else
+ pi->regm2 = dssdev->clocks.hdmi.regm2;
/*
* fractional multiplier is remainder of the difference between