Merge tag 'soc-drivers-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC driver updates from Arnd Bergmann:
 "There are few major updates in the SoC specific drivers, mainly the
  usual reworks and support for variants of the existing SoC. While this
  remains Arm centric for the most part, the branch now also contains
  updates to risc-v and loongarch specific code in drivers/soc/.

  Notable changes include:

   - Support for the newly added Qualcomm Snapdragon variants (MSM8956,
     MSM8976, SM6115, SM4250, SM8150, SA8155 and SM8550) in the soc ID,
     rpmh, rpm, spm and powerdomain drivers.

   - Documentation for the somewhat controversial qcom,board-id
     properties that are required for booting a number of machines

   - A new SoC identification driver for the loongson-2 (loongarch)
     platform

   - memory controller updates for stm32, tegra, and renesas.

   - a new DT binding to better describe LPDDR2/3/4/5 chips in the
     memory controller subsystem

   - Updates for Tegra specific drivers across multiple subsystems,
     improving support for newer SoCs and better identification

   - Minor fixes for Broadcom, Freescale, Apple, Renesas, Sifive, TI,
     Mediatek and Marvell SoC drivers"

* tag 'soc-drivers-6.2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (137 commits)
  soc: qcom: socinfo: Add SM6115 / SM4250 SoC IDs to the soc_id table
  dt-bindings: arm: qcom,ids: Add SoC IDs for SM6115 / SM4250 and variants
  soc: qcom: socinfo: Add SM8150 and SA8155 SoC IDs to the soc_id table
  dt-bindings: arm: qcom,ids: Add SoC IDs for SM8150 and SA8155
  dt-bindings: soc: qcom: apr: document generic qcom,apr compatible
  soc: qcom: Select REMAP_MMIO for ICC_BWMON driver
  soc: qcom: Select REMAP_MMIO for LLCC driver
  soc: qcom: rpmpd: Add SM4250 support
  dt-bindings: power: rpmpd: Add SM4250 support
  dt-bindings: soc: qcom: aoss: Add compatible for SM8550
  soc: qcom: llcc: Add configuration data for SM8550
  dt-bindings: arm: msm: Add LLCC compatible for SM8550
  soc: qcom: llcc: Add v4.1 HW version support
  soc: qcom: socinfo: Add SM8550 ID
  soc: qcom: rpmh-rsc: Avoid unnecessary checks on irq-done response
  soc: qcom: rpmh-rsc: Add support for RSC v3 register offsets
  soc: qcom: rpmhpd: Add SM8550 power domains
  dt-bindings: power: rpmpd: Add SM8550 to rpmpd binding
  soc: qcom: socinfo: Add MSM8956/76 SoC IDs to the soc_id table
  dt-bindings: arm: qcom,ids: Add SoC IDs for MSM8956 and MSM8976
  ...

1 files changed, 34 insertions, 3 deletions

diff --git a/drivers/clk/tegra/clk-bpmp.c b/drivers/clk/tegra/clk-bpmp.c
index d82a71f10c2c..0ecdffaa6b16 100644
--- a/drivers/clk/tegra/clk-bpmp.c
+++ b/drivers/clk/tegra/clk-bpmp.c
@@ -1,6 +1,6 @@
 // SPDX-License-Identifier: GPL-2.0-only
 /*
- * Copyright (C) 2016-2020 NVIDIA Corporation
+ * Copyright (C) 2016-2022 NVIDIA Corporation
  */
 
 #include <linux/clk-provider.h>
@@ -310,6 +310,23 @@ static const struct clk_ops tegra_bpmp_clk_mux_rate_ops = {
 	.set_rate = tegra_bpmp_clk_set_rate,
 };
 
+static const struct clk_ops tegra_bpmp_clk_mux_read_only_ops = {
+	.get_parent = tegra_bpmp_clk_get_parent,
+	.recalc_rate = tegra_bpmp_clk_recalc_rate,
+};
+
+static const struct clk_ops tegra_bpmp_clk_read_only_ops = {
+	.recalc_rate = tegra_bpmp_clk_recalc_rate,
+};
+
+static const struct clk_ops tegra_bpmp_clk_gate_mux_read_only_ops = {
+	.prepare = tegra_bpmp_clk_prepare,
+	.unprepare = tegra_bpmp_clk_unprepare,
+	.is_prepared = tegra_bpmp_clk_is_prepared,
+	.recalc_rate = tegra_bpmp_clk_recalc_rate,
+	.get_parent = tegra_bpmp_clk_get_parent,
+};
+
 static int tegra_bpmp_clk_get_max_id(struct tegra_bpmp *bpmp)
 {
 	struct cmd_clk_get_max_clk_id_response response;
@@ -510,8 +527,22 @@ tegra_bpmp_clk_register(struct tegra_bpmp *bpmp,
 	memset(&init, 0, sizeof(init));
 	init.name = info->name;
 	clk->hw.init = &init;
-
-	if (info->flags & TEGRA_BPMP_CLK_HAS_MUX) {
+	if (info->flags & BPMP_CLK_STATE_CHANGE_DENIED) {
+		if ((info->flags & BPMP_CLK_RATE_PARENT_CHANGE_DENIED) == 0) {
+			dev_WARN(bpmp->dev,
+				"Firmware bug! Inconsistent permission bits for clock %s. State and parent/rate changes disabled.",
+				 init.name);
+		}
+		if (info->flags & TEGRA_BPMP_CLK_HAS_MUX)
+			init.ops = &tegra_bpmp_clk_mux_read_only_ops;
+		else
+			init.ops = &tegra_bpmp_clk_read_only_ops;
+	} else if (info->flags & BPMP_CLK_RATE_PARENT_CHANGE_DENIED) {
+		if (info->flags & TEGRA_BPMP_CLK_HAS_MUX)
+			init.ops = &tegra_bpmp_clk_gate_mux_read_only_ops;
+		else
+			init.ops = &tegra_bpmp_clk_gate_ops;
+	} else if (info->flags & TEGRA_BPMP_CLK_HAS_MUX) {
 		if (info->flags & TEGRA_BPMP_CLK_HAS_SET_RATE)
 			init.ops = &tegra_bpmp_clk_mux_rate_ops;
 		else