diff mbox series

drm/msm/hdmi: simplify code in pll_get_integloop_gain

Message ID 20241112074101.2206-1-rex.nie@jaguarmicro.com (mailing list archive)
State Not Applicable
Headers show
Series drm/msm/hdmi: simplify code in pll_get_integloop_gain | expand

Commit Message

Rex Nie Nov. 12, 2024, 7:41 a.m. UTC 
In pll_get_integloop_gain(), digclk_divsel=1 or 2, base=63 or 196ULL,
so the base may be 63, 126, 196, 392. The condition base <= 2046
always true.

Fixes: caedbf17c48d ("drm/msm: add msm8998 hdmi phy/pll support")
Signed-off-by: Rex Nie <rex.nie@jaguarmicro.com>
---
 drivers/gpu/drm/msm/hdmi/hdmi_phy_8998.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Dmitry Baryshkov Nov. 14, 2024, 12:12 p.m. UTC | #1 
On Tue, Nov 12, 2024 at 03:41:00PM +0800, Rex Nie wrote:
> In pll_get_integloop_gain(), digclk_divsel=1 or 2, base=63 or 196ULL,
> so the base may be 63, 126, 196, 392. The condition base <= 2046
> always true.
> 
> Fixes: caedbf17c48d ("drm/msm: add msm8998 hdmi phy/pll support")
> Signed-off-by: Rex Nie <rex.nie@jaguarmicro.com>
> ---
>  drivers/gpu/drm/msm/hdmi/hdmi_phy_8998.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
diff mbox series

Patch

diff --git a/drivers/gpu/drm/msm/hdmi/hdmi_phy_8998.c b/drivers/gpu/drm/msm/hdmi/hdmi_phy_8998.c
index e6ffaf92d26d..1c4211cfa2a4 100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi_phy_8998.c
+++ b/drivers/gpu/drm/msm/hdmi/hdmi_phy_8998.c
@@ -137,7 +137,7 @@  static inline u32 pll_get_integloop_gain(u64 frac_start, u64 bclk, u32 ref_clk,
 
 	base <<= (digclk_divsel == 2 ? 1 : 0);
 
-	return (base <= 2046 ? base : 2046);
+	return base;
 }
 
 static inline u32 pll_get_pll_cmp(u64 fdata, unsigned long ref_clk)