This is a note to let you know that I've just added the patch titled
phy/rockchip: inno-hdmi: do not power on rk3328 post pll on reg write
to the 5.4-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
phy-rockchip-inno-hdmi-do-not-power-on-rk3328-post-p.patch
and it can be found in the queue-5.4 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit 31d5c7aca77f6c9c354c4cc9704ed1510873e642
Author: Jonas Karlman <jonas@xxxxxxxxx>
Date: Thu Jun 15 17:10:21 2023 +0000
phy/rockchip: inno-hdmi: do not power on rk3328 post pll on reg write
[ Upstream commit 19a1d46bd699940a496d3b0d4e142ef99834988c ]
inno_write is used to configure 0xaa reg, that also hold the
POST_PLL_POWER_DOWN bit.
When POST_PLL_REFCLK_SEL_TMDS is configured the power down bit is not
taken into consideration.
Fix this by keeping the power down bit until configuration is complete.
Also reorder the reg write order for consistency.
Fixes: 53706a116863 ("phy: add Rockchip Innosilicon hdmi phy")
Signed-off-by: Jonas Karlman <jonas@xxxxxxxxx>
Link: https://lore.kernel.org/r/20230615171005.2251032-5-jonas@xxxxxxxxx
Signed-off-by: Vinod Koul <vkoul@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/phy/rockchip/phy-rockchip-inno-hdmi.c b/drivers/phy/rockchip/phy-rockchip-inno-hdmi.c
index 093d2334e8cdc..2b0f5f2b4f339 100644
--- a/drivers/phy/rockchip/phy-rockchip-inno-hdmi.c
+++ b/drivers/phy/rockchip/phy-rockchip-inno-hdmi.c
@@ -1023,9 +1023,10 @@ inno_hdmi_phy_rk3328_power_on(struct inno_hdmi_phy *inno,
inno_write(inno, 0xac, RK3328_POST_PLL_FB_DIV_7_0(cfg->fbdiv));
if (cfg->postdiv == 1) {
- inno_write(inno, 0xaa, RK3328_POST_PLL_REFCLK_SEL_TMDS);
inno_write(inno, 0xab, RK3328_POST_PLL_FB_DIV_8(cfg->fbdiv) |
RK3328_POST_PLL_PRE_DIV(cfg->prediv));
+ inno_write(inno, 0xaa, RK3328_POST_PLL_REFCLK_SEL_TMDS |
+ RK3328_POST_PLL_POWER_DOWN);
} else {
v = (cfg->postdiv / 2) - 1;
v &= RK3328_POST_PLL_POST_DIV_MASK;
@@ -1033,7 +1034,8 @@ inno_hdmi_phy_rk3328_power_on(struct inno_hdmi_phy *inno,
inno_write(inno, 0xab, RK3328_POST_PLL_FB_DIV_8(cfg->fbdiv) |
RK3328_POST_PLL_PRE_DIV(cfg->prediv));
inno_write(inno, 0xaa, RK3328_POST_PLL_POST_DIV_ENABLE |
- RK3328_POST_PLL_REFCLK_SEL_TMDS);
+ RK3328_POST_PLL_REFCLK_SEL_TMDS |
+ RK3328_POST_PLL_POWER_DOWN);
}
for (v = 0; v < 14; v++)
