[2/3] clk: meson: meson8b: add the fractional divider for vid_pll_dco

Commit Message

Martin Blumenstingl Dec. 2, 2018, 9:42 p.m. UTC

This "vid_pll_dco" (which should be named HDMI_PLL or - as the datasheet
calls it - HPLL) has a 12-bit wide fractional parameter at
HHI_VID_PLL_CNTL2[11:0]. Add this so we correctly calculate the rate of
this PLL when u-boot is configured for a video mode which uses this
fractional parameter.

Signed-off-by: Martin Blumenstingl <[e-mail]>
---
 drivers/clk/meson/meson8b.c | 5 +++++
 drivers/clk/meson/meson8b.h | 1 +
 2 files changed, 6 insertions(+)

Patch

diff --git a/drivers/clk/meson/meson8b.c b/drivers/clk/meson/meson8b.c
index a4ae9c957fde..0f3f4759fc92 100644
--- a/drivers/clk/meson/meson8b.c
+++ b/drivers/clk/meson/meson8b.c
@@ -137,6 +137,11 @@  static struct clk_regmap meson8b_vid_pll_dco = {
 			.shift   = 10,
 			.width   = 5,
 		},
+		.frac = {
+			.reg_off = HHI_VID_PLL_CNTL2,
+			.shift   = 0,
+			.width   = 12,
+		},
 		.l = {
 			.reg_off = HHI_VID_PLL_CNTL,
 			.shift   = 31,
diff --git a/drivers/clk/meson/meson8b.h b/drivers/clk/meson/meson8b.h
index 0abb331162ab..e953923792d7 100644
--- a/drivers/clk/meson/meson8b.h
+++ b/drivers/clk/meson/meson8b.h
@@ -33,6 +33,7 @@ 
 #define HHI_MPLL_CNTL			0x280 /* 0xa0 offset in data sheet */
 #define HHI_SYS_PLL_CNTL		0x300 /* 0xc0 offset in data sheet */
 #define HHI_VID_PLL_CNTL		0x320 /* 0xc8 offset in data sheet */
+#define HHI_VID_PLL_CNTL2		0x324 /* 0xc9 offset in data sheet */
 
 /*
  * MPLL register offeset taken from the S905 datasheet. Vendor kernel source