linux-kernel - [PATCH v2 6/6] clk: qcom: gpucc-sa8775p: Update wait

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Message-ID: <20240612-sa8775p-v2-gcc-gpucc-fixes-v2-6-adcc756a23df@quicinc.com>
Date: Wed, 12 Jun 2024 16:38:26 +0530
From: Taniya Das <quic_tdas@...cinc.com>
To: Bjorn Andersson <andersson@...nel.org>,
        Michael Turquette
	<mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Konrad Dybcio
	<konrad.dybcio@...aro.org>,
        Bartosz Golaszewski
	<bartosz.golaszewski@...aro.org>,
        Shazad Hussain <quic_shazhuss@...cinc.com>
CC: <linux-arm-msm@...r.kernel.org>, <linux-clk@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <quic_jkona@...cinc.com>,
        <quic_imrashai@...cinc.com>, Taniya Das <quic_tdas@...cinc.com>
Subject: [PATCH v2 6/6] clk: qcom: gpucc-sa8775p: Update wait_val fields
 for GPU GDSC's

Update wait_val fields as per the default hardware values of the GDSC as
otherwise it would lead to GDSC FSM state stuck causing power on/off
failures of the GSDC.

Fixes: 0afa16afc36d ("clk: qcom: add the GPUCC driver for sa8775p")
Signed-off-by: Taniya Das <quic_tdas@...cinc.com>
---
 drivers/clk/qcom/gpucc-sa8775p.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/clk/qcom/gpucc-sa8775p.c b/drivers/clk/qcom/gpucc-sa8775p.c
index 1f7a02a7503d..3deabf833388 100644
--- a/drivers/clk/qcom/gpucc-sa8775p.c
+++ b/drivers/clk/qcom/gpucc-sa8775p.c
@@ -523,6 +523,9 @@ static struct clk_regmap *gpu_cc_sa8775p_clocks[] = {
 
 static struct gdsc cx_gdsc = {
 	.gdscr = 0x9108,
+	.en_rest_wait_val = 0x2,
+	.en_few_wait_val = 0x2,
+	.clk_dis_wait_val = 0xf,
 	.gds_hw_ctrl = 0x953c,
 	.pd = {
 		.name = "cx_gdsc",
@@ -533,6 +536,9 @@ static struct gdsc cx_gdsc = {
 
 static struct gdsc gx_gdsc = {
 	.gdscr = 0x905c,
+	.en_rest_wait_val = 0x2,
+	.en_few_wait_val = 0x2,
+	.clk_dis_wait_val = 0xf,
 	.pd = {
 		.name = "gx_gdsc",
 		.power_on = gdsc_gx_do_nothing_enable,

-- 
2.45.2