linux-kernel - [PATCH v2 2/3] soc: qcom: rpmhpd: Remove mx/cx relationship on sc7280

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <1638871712-18636-3-git-send-email-quic_rjendra@quicinc.com>
Date:   Tue, 7 Dec 2021 15:38:31 +0530
From:   Rajendra Nayak <quic_rjendra@...cinc.com>
To:     <agross@...nel.org>, <bjorn.andersson@...aro.org>
CC:     <linux-arm-msm@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <swboyd@...omium.org>, <mka@...omium.org>,
        Rajendra Nayak <quic_rjendra@...cinc.com>
Subject: [PATCH v2 2/3] soc: qcom: rpmhpd: Remove mx/cx relationship on sc7280

While the requirement to specify the active + sleep and active-only MX
power-domains as the parents of the corresponding CX power domains is
applicable for most SoCs, we have some like the sc7280 where this 
dependency is not applicable.
Define new rpmhpd structs for cx and cx_ao without the mx as
parent and use them for sc7280.

Signed-off-by: Rajendra Nayak <quic_rjendra@...cinc.com>
---
 drivers/soc/qcom/rpmhpd.c | 18 ++++++++++++++++--
 1 file changed, 16 insertions(+), 2 deletions(-)

diff --git a/drivers/soc/qcom/rpmhpd.c b/drivers/soc/qcom/rpmhpd.c
index c71481d..4599efe 100644
--- a/drivers/soc/qcom/rpmhpd.c
+++ b/drivers/soc/qcom/rpmhpd.c
@@ -120,6 +120,20 @@ static struct rpmhpd cx_ao = {
 	.res_name = "cx.lvl",
 };
 
+static struct rpmhpd cx_ao_no_parent;
+static struct rpmhpd cx_no_parent = {
+	.pd = { .name = "cx", },
+	.peer = &cx_ao_no_parent,
+	.res_name = "cx.lvl",
+};
+
+static struct rpmhpd cx_ao_no_parent = {
+	.pd = { .name = "cx_ao", },
+	.active_only = true,
+	.peer = &cx_no_parent,
+	.res_name = "cx.lvl",
+};
+
 static struct rpmhpd mmcx_ao;
 static struct rpmhpd mmcx = {
 	.pd = { .name = "mmcx", },
@@ -273,8 +287,8 @@ static const struct rpmhpd_desc sc7180_desc = {
 
 /* SC7280 RPMH powerdomains */
 static struct rpmhpd *sc7280_rpmhpds[] = {
-	[SC7280_CX] = &cx,
-	[SC7280_CX_AO] = &cx_ao,
+	[SC7280_CX] = &cx_no_parent,
+	[SC7280_CX_AO] = &cx_ao_no_parent,
 	[SC7280_EBI] = &ebi,
 	[SC7280_GFX] = &gfx,
 	[SC7280_MX] = &mx,
-- 
2.7.4