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From: Stephen Boyd <swboyd@chromium.org>
To: Georgi Djakov <djakov@kernel.org>
Cc: linux-kernel@vger.kernel.org, patches@lists.linux.dev,
	linux-arm-msm@vger.kernel.org, linux-pm@vger.kernel.org,
	Alex Elder <elder@linaro.org>,
	Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>,
	Bjorn Andersson <bjorn.andersson@linaro.org>,
	Taniya Das <quic_tdas@quicinc.com>,
	Mike Tipton <quic_mdtipton@quicinc.com>
Subject: [PATCH 2/2] interconnect: qcom: sdx55: Drop IP0 interconnects
Date: Tue, 12 Apr 2022 15:00:33 -0700	[thread overview]
Message-ID: <20220412220033.1273607-3-swboyd@chromium.org> (raw)
In-Reply-To: <20220412220033.1273607-1-swboyd@chromium.org>

Similar to the sc7180 commit, let's drop the IP0 interconnects here
because the IP0 resource is also used in the clk-rpmh driver on sdx55.
It's bad to have the clk framework and interconnect framework control
the same RPMh resource without any coordination. The rpmh driver in the
kernel doesn't aggregate resources between clients either, so leaving
control to clk-rpmh avoids any issues with unused interconnects turning
off IP0 behind the back of the clk framework.

Cc: Alex Elder <elder@linaro.org>
Cc: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Cc: Bjorn Andersson <bjorn.andersson@linaro.org>
Cc: Taniya Das <quic_tdas@quicinc.com>
Cc: Mike Tipton <quic_mdtipton@quicinc.com>
Fixes: b2150cab9a97 ("clk: qcom: rpmh: add support for SDX55 rpmh IPA clock")
Signed-off-by: Stephen Boyd <swboyd@chromium.org>
---
 drivers/interconnect/qcom/sdx55.c | 21 ---------------------
 1 file changed, 21 deletions(-)

diff --git a/drivers/interconnect/qcom/sdx55.c b/drivers/interconnect/qcom/sdx55.c
index 03d604f84cc5..e3ac25a997b7 100644
--- a/drivers/interconnect/qcom/sdx55.c
+++ b/drivers/interconnect/qcom/sdx55.c
@@ -18,7 +18,6 @@
 #include "icc-rpmh.h"
 #include "sdx55.h"
 
-DEFINE_QNODE(ipa_core_master, SDX55_MASTER_IPA_CORE, 1, 8, SDX55_SLAVE_IPA_CORE);
 DEFINE_QNODE(llcc_mc, SDX55_MASTER_LLCC, 4, 4, SDX55_SLAVE_EBI_CH0);
 DEFINE_QNODE(acm_tcu, SDX55_MASTER_TCU_0, 1, 8, SDX55_SLAVE_LLCC, SDX55_SLAVE_MEM_NOC_SNOC, SDX55_SLAVE_MEM_NOC_PCIE_SNOC);
 DEFINE_QNODE(qnm_snoc_gc, SDX55_MASTER_SNOC_GC_MEM_NOC, 1, 8, SDX55_SLAVE_LLCC);
@@ -40,7 +39,6 @@ DEFINE_QNODE(xm_pcie, SDX55_MASTER_PCIE, 1, 8, SDX55_SLAVE_ANOC_SNOC);
 DEFINE_QNODE(xm_qdss_etr, SDX55_MASTER_QDSS_ETR, 1, 8, SDX55_SLAVE_SNOC_CFG, SDX55_SLAVE_EMAC_CFG, SDX55_SLAVE_USB3, SDX55_SLAVE_AOSS, SDX55_SLAVE_SPMI_FETCHER, SDX55_SLAVE_QDSS_CFG, SDX55_SLAVE_PDM, SDX55_SLAVE_SNOC_MEM_NOC_GC, SDX55_SLAVE_TCSR, SDX55_SLAVE_CNOC_DDRSS, SDX55_SLAVE_SPMI_VGI_COEX, SDX55_SLAVE_QPIC, SDX55_SLAVE_OCIMEM, SDX55_SLAVE_IPA_CFG, SDX55_SLAVE_USB3_PHY_CFG, SDX55_SLAVE_AOP, SDX55_SLAVE_BLSP_1, SDX55_SLAVE_SDCC_1, SDX55_SLAVE_CNOC_MSS, SDX55_SLAVE_PCIE_PARF, SDX55_SLAVE_ECC_CFG, SDX55_SLAVE_AUDIO, SDX55_SLAVE_AOSS, SDX55_SLAVE_PRNG, SDX55_SLAVE_CRYPTO_0_CFG, SDX55_SLAVE_TCU, SDX55_SLAVE_CLK_CTL, SDX55_SLAVE_IMEM_CFG);
 DEFINE_QNODE(xm_sdc1, SDX55_MASTER_SDCC_1, 1, 8, SDX55_SLAVE_AOSS, SDX55_SLAVE_IPA_CFG, SDX55_SLAVE_ANOC_SNOC, SDX55_SLAVE_AOP, SDX55_SLAVE_AUDIO);
 DEFINE_QNODE(xm_usb3, SDX55_MASTER_USB3, 1, 8, SDX55_SLAVE_ANOC_SNOC);
-DEFINE_QNODE(ipa_core_slave, SDX55_SLAVE_IPA_CORE, 1, 8);
 DEFINE_QNODE(ebi, SDX55_SLAVE_EBI_CH0, 1, 4);
 DEFINE_QNODE(qns_llcc, SDX55_SLAVE_LLCC, 1, 16, SDX55_SLAVE_EBI_CH0);
 DEFINE_QNODE(qns_memnoc_snoc, SDX55_SLAVE_MEM_NOC_SNOC, 1, 8, SDX55_MASTER_MEM_NOC_SNOC);
@@ -82,7 +80,6 @@ DEFINE_QNODE(xs_sys_tcu_cfg, SDX55_SLAVE_TCU, 1, 8);
 DEFINE_QBCM(bcm_mc0, "MC0", true, &ebi);
 DEFINE_QBCM(bcm_sh0, "SH0", true, &qns_llcc);
 DEFINE_QBCM(bcm_ce0, "CE0", false, &qxm_crypto);
-DEFINE_QBCM(bcm_ip0, "IP0", false, &ipa_core_slave);
 DEFINE_QBCM(bcm_pn0, "PN0", false, &qhm_snoc_cfg);
 DEFINE_QBCM(bcm_sh3, "SH3", false, &xm_apps_rdwr);
 DEFINE_QBCM(bcm_sh4, "SH4", false, &qns_memnoc_snoc, &qns_sys_pcie);
@@ -219,22 +216,6 @@ static const struct qcom_icc_desc sdx55_system_noc = {
 	.num_bcms = ARRAY_SIZE(system_noc_bcms),
 };
 
-static struct qcom_icc_bcm *ipa_virt_bcms[] = {
-	&bcm_ip0,
-};
-
-static struct qcom_icc_node *ipa_virt_nodes[] = {
-	[MASTER_IPA_CORE] = &ipa_core_master,
-	[SLAVE_IPA_CORE] = &ipa_core_slave,
-};
-
-static const struct qcom_icc_desc sdx55_ipa_virt = {
-	.nodes = ipa_virt_nodes,
-	.num_nodes = ARRAY_SIZE(ipa_virt_nodes),
-	.bcms = ipa_virt_bcms,
-	.num_bcms = ARRAY_SIZE(ipa_virt_bcms),
-};
-
 static const struct of_device_id qnoc_of_match[] = {
 	{ .compatible = "qcom,sdx55-mc-virt",
 	  .data = &sdx55_mc_virt},
@@ -242,8 +223,6 @@ static const struct of_device_id qnoc_of_match[] = {
 	  .data = &sdx55_mem_noc},
 	{ .compatible = "qcom,sdx55-system-noc",
 	  .data = &sdx55_system_noc},
-	{ .compatible = "qcom,sdx55-ipa-virt",
-	  .data = &sdx55_ipa_virt},
 	{ }
 };
 MODULE_DEVICE_TABLE(of, qnoc_of_match);
-- 
https://chromeos.dev


  parent reply	other threads:[~2022-04-12 22:00 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-04-12 22:00 [PATCH 0/2] interconnect: qcom: Remove IP0 resource Stephen Boyd
2022-04-12 22:00 ` [PATCH 1/2] interconnect: qcom: sc7180: Drop IP0 interconnects Stephen Boyd
2022-04-12 22:54   ` Alex Elder
2022-04-13 20:55   ` Doug Anderson
2022-04-13 21:02     ` Alex Elder
2022-04-13 23:14       ` Stephen Boyd
2022-04-14  0:59         ` Alex Elder
2022-04-12 22:00 ` Stephen Boyd [this message]
2022-04-12 22:54   ` [PATCH 2/2] interconnect: qcom: sdx55: " Alex Elder
2022-04-13  7:37   ` Manivannan Sadhasivam
2022-04-14  2:32 ` [PATCH 0/2] interconnect: qcom: Remove IP0 resource Bjorn Andersson
2022-04-15  0:58 ` [PATCH 3/2] arm64: dts: qcom: sc7180: Remove ipa interconnect node Stephen Boyd
2022-04-15  0:58   ` [PATCH 4/2] ARM: dts: qcom: sdx55: " Stephen Boyd
2022-04-15 20:11     ` Alex Elder
2022-05-04 17:21     ` (subset) " Bjorn Andersson
2022-04-15  0:58   ` [PATCH 5/2] dt-bindings: interconnect: Remove sc7180/sdx55 ipa compatibles Stephen Boyd
2022-04-15 20:15     ` Alex Elder
2022-04-18 19:48       ` Stephen Boyd
2022-05-16 22:16     ` Alex Elder
2022-05-19 17:48       ` Georgi Djakov
2022-04-15 20:11   ` [PATCH 3/2] arm64: dts: qcom: sc7180: Remove ipa interconnect node Alex Elder
2022-04-20  2:56   ` Bjorn Andersson
2022-04-22  7:01     ` Georgi Djakov
2022-04-22 20:34       ` Stephen Boyd
2022-05-04 17:21   ` (subset) " Bjorn Andersson

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