linux-kernel - [PATCH v4 04/16] drm/msm/hdmi: move the alt

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Message-Id: <20250209-fd-hdmi-hpd-v4-4-6224568ed87f@linaro.org>
Date: Sun, 09 Feb 2025 07:04:48 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Rob Clark <robdclark@...il.com>, 
 Abhinav Kumar <quic_abhinavk@...cinc.com>, Sean Paul <sean@...rly.run>, 
 Marijn Suijten <marijn.suijten@...ainline.org>, 
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>, 
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>, 
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>, 
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Bjorn Andersson <andersson@...nel.org>, 
 Konrad Dybcio <konradybcio@...nel.org>, 
 Simona Vetter <simona.vetter@...ll.ch>
Cc: linux-arm-msm@...r.kernel.org, dri-devel@...ts.freedesktop.org, 
 freedreno@...ts.freedesktop.org, linux-kernel@...r.kernel.org, 
 devicetree@...r.kernel.org, Jessica Zhang <quic_jesszhan@...cinc.com>, 
 Konrad Dybcio <konradybcio@...nel.org>
Subject: [PATCH v4 04/16] drm/msm/hdmi: move the alt_iface clock to the hpd
 list

According to the vendor kernel [1] , the alt_iface clock should be
enabled together with the rest of HPD clocks, to make HPD to work
properly.

[1] https://git.codelinaro.org/clo/la/kernel/msm-3.18/-/commit/e07a5487e521e57f76083c0a6e2f995414ac6d03

Reviewed-by: Jessica Zhang <quic_jesszhan@...cinc.com>
Reviewed-by: Konrad Dybcio <konrad.dybcio@...aro.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
---
 drivers/gpu/drm/msm/hdmi/hdmi.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/msm/hdmi/hdmi.c b/drivers/gpu/drm/msm/hdmi/hdmi.c
index 9e9900882687fa2ae4a734d5cf10b5bae5af2f87..ebf9d8162c6e5759a3780c74354b6c159598750f 100644
--- a/drivers/gpu/drm/msm/hdmi/hdmi.c
+++ b/drivers/gpu/drm/msm/hdmi/hdmi.c
@@ -233,9 +233,9 @@ static const struct hdmi_platform_config hdmi_tx_8960_config = {
 };
 
 static const char * const pwr_reg_names_8x74[] = {"core-vdda", "core-vcc"};
-static const char * const pwr_clk_names_8x74[] = {"extp", "alt_iface"};
-static const char * const hpd_clk_names_8x74[] = {"iface", "core", "mdp_core"};
-static unsigned long hpd_clk_freq_8x74[] = {0, 19200000, 0};
+static const char * const pwr_clk_names_8x74[] = {"extp"};
+static const char * const hpd_clk_names_8x74[] = {"iface", "core", "mdp_core", "alt_iface"};
+static unsigned long hpd_clk_freq_8x74[] = {0, 19200000, 0, 0};
 
 static const struct hdmi_platform_config hdmi_tx_8974_config = {
 		HDMI_CFG(pwr_reg, 8x74),

-- 
2.39.5