linux-kernel - [PATCH v2] clk: qcom: gcc-ipq9574: Add BRANCH_HALT

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Date: Mon,  6 May 2024 12:07:51 +0530
From: Md Sadre Alam <quic_mdalam@...cinc.com>
To: andersson@...nel.org, mturquette@...libre.com, sboyd@...nel.org,
        quic_anusha@...cinc.com, bhupesh.sharma@...aro.org,
        linux-arm-msm@...r.kernel.org, linux-clk@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc: quic_mdalam@...cinc.com, quic_srichara@...cinc.com,
        quic_varada@...cinc.com, stable@...r.kernel.org
Subject: [PATCH v2] clk: qcom: gcc-ipq9574: Add BRANCH_HALT_VOTED flag

Add BRANCH_HALT_VOTED flag to inform clock framework
don't check for CLK_OFF bit.

CRYPTO_AHB_CLK_ENA and CRYPTO_AXI_CLK_ENA enable bit is
present in other VOTE registers also, like TZ.
If anyone else also enabled this clock, even if we turn
off in GCC_APCS_CLOCK_BRANCH_ENA_VOTE | 0x180B004, it won't
turn off.
Also changes the CRYPTO_AHB_CLK_ENA & CRYPTO_AXI_CLK_ENA
offset to 0xb004 from 0x16014.

Cc: stable@...r.kernel.org
Fixes: f6b2bd9cb29a ("clk: qcom: gcc-ipq9574: Enable crypto clocks")
Signed-off-by: Md Sadre Alam <quic_mdalam@...cinc.com>
---
Change in [v2]

* Added Fixes tag and stable kernel tag

* updated commit message about offset change

 drivers/clk/qcom/gcc-ipq9574.c | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/clk/qcom/gcc-ipq9574.c b/drivers/clk/qcom/gcc-ipq9574.c
index 0a3f846695b8..f8b9a1e93bef 100644
--- a/drivers/clk/qcom/gcc-ipq9574.c
+++ b/drivers/clk/qcom/gcc-ipq9574.c
@@ -2140,9 +2140,10 @@ static struct clk_rcg2 pcnoc_bfdcd_clk_src = {
 
 static struct clk_branch gcc_crypto_axi_clk = {
 	.halt_reg = 0x16010,
+	.halt_check = BRANCH_HALT_VOTED,
 	.clkr = {
-		.enable_reg = 0x16010,
-		.enable_mask = BIT(0),
+		.enable_reg = 0xb004,
+		.enable_mask = BIT(15),
 		.hw.init = &(const struct clk_init_data) {
 			.name = "gcc_crypto_axi_clk",
 			.parent_hws = (const struct clk_hw *[]) {
@@ -2156,9 +2157,10 @@ static struct clk_branch gcc_crypto_axi_clk = {
 
 static struct clk_branch gcc_crypto_ahb_clk = {
 	.halt_reg = 0x16014,
+	.halt_check = BRANCH_HALT_VOTED,
 	.clkr = {
-		.enable_reg = 0x16014,
-		.enable_mask = BIT(0),
+		.enable_reg = 0xb004,
+		.enable_mask = BIT(16),
 		.hw.init = &(const struct clk_init_data) {
 			.name = "gcc_crypto_ahb_clk",
 			.parent_hws = (const struct clk_hw *[]) {
-- 
2.34.1