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authorLinus Torvalds <torvalds@linux-foundation.org>2022-01-10 08:13:52 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2022-01-10 08:13:52 -0800
commite85195d5bf8979f6db3f12cf8f1294887bf6b037 (patch)
tree7133f9676401c4f384df295b696ca29447f1d524 /drivers/mtd
parent0dca3c5e017ab81ebe21eb9096f657c45a6b17a4 (diff)
parent13ee75c7b57c546f7973984d9a87cfa7d73cbf5c (diff)
Merge tag 'drivers-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC driver updates from Arnd Bergmann: "There are cleanups and minor bugfixes across several SoC specific drivers, for Qualcomm, Samsung, NXP i.MX, AT91, Tegra, Keystone, Renesas, ZynqMP Noteworthy new features are: - The op-tee firmware driver gains support for asynchronous notifications from secure-world firmware. - Qualcomm platforms gain support for new SoC types in various drivers: power domain, cache controller, RPM sleep, soc-info - Samsung SoC drivers gain support for new SoCs in ChipID and PMU, as well as a new USIv2 driver that handles various types of serial communiction (uart, i2c, spi) - Renesas adds support for R-Car S4-8 (R8A779F0) in multiple drivers, as well as memory controller support for RZ/G2L (R9A07G044). - Apple M1 gains support for the PMGR power management driver" * tag 'drivers-5.17' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (94 commits) soc: qcom: rpmh-rsc: Fix typo in a comment soc: qcom: socinfo: Add SM6350 and SM7225 dt-bindings: arm: msm: Don't mark LLCC interrupt as required dt-bindings: firmware: scm: Add SM6350 compatible dt-bindings: arm: msm: Add LLCC for SM6350 soc: qcom: rpmhpd: Sort power-domain definitions and lists soc: qcom: rpmhpd: Remove mx/cx relationship on sc7280 soc: qcom: rpmhpd: Rename rpmhpd struct names soc: qcom: rpmhpd: sm8450: Add the missing .peer for sm8450_cx_ao soc: qcom: socinfo: add SM8450 ID soc: qcom: rpmhpd: Add SM8450 power domains dt-bindings: power: rpmpd: Add SM8450 to rpmpd binding soc: qcom: smem: Update max processor count dt-bindings: arm: qcom: Document SM8450 SoC and boards dt-bindings: firmware: scm: Add SM8450 compatible dt-bindings: arm: cpus: Add kryo780 compatible soc: qcom: rpmpd: Add support for sm6125 dt-bindings: qcom-rpmpd: Add sm6125 power domains soc: qcom: aoss: constify static struct thermal_cooling_device_ops PM: AVS: qcom-cpr: Use div64_ul instead of do_div ...
Diffstat (limited to 'drivers/mtd')
-rw-r--r--drivers/mtd/hyperbus/rpc-if.c4
-rw-r--r--drivers/mtd/nand/raw/tegra_nand.c58
2 files changed, 53 insertions, 9 deletions
diff --git a/drivers/mtd/hyperbus/rpc-if.c b/drivers/mtd/hyperbus/rpc-if.c
index ecb050ba95cd..8daa296f6eb6 100644
--- a/drivers/mtd/hyperbus/rpc-if.c
+++ b/drivers/mtd/hyperbus/rpc-if.c
@@ -130,7 +130,9 @@ static int rpcif_hb_probe(struct platform_device *pdev)
rpcif_enable_rpm(&hyperbus->rpc);
- rpcif_hw_init(&hyperbus->rpc, true);
+ error = rpcif_hw_init(&hyperbus->rpc, true);
+ if (error)
+ return error;
hyperbus->hbdev.map.size = hyperbus->rpc.size;
hyperbus->hbdev.map.virt = hyperbus->rpc.dirmap;
diff --git a/drivers/mtd/nand/raw/tegra_nand.c b/drivers/mtd/nand/raw/tegra_nand.c
index 32431bbe69b8..b36e5260ae27 100644
--- a/drivers/mtd/nand/raw/tegra_nand.c
+++ b/drivers/mtd/nand/raw/tegra_nand.c
@@ -17,8 +17,11 @@
#include <linux/mtd/rawnand.h>
#include <linux/of.h>
#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
#include <linux/reset.h>
+#include <soc/tegra/common.h>
+
#define COMMAND 0x00
#define COMMAND_GO BIT(31)
#define COMMAND_CLE BIT(30)
@@ -1151,6 +1154,7 @@ static int tegra_nand_probe(struct platform_device *pdev)
return -ENOMEM;
ctrl->dev = &pdev->dev;
+ platform_set_drvdata(pdev, ctrl);
nand_controller_init(&ctrl->controller);
ctrl->controller.ops = &tegra_nand_controller_ops;
@@ -1166,14 +1170,23 @@ static int tegra_nand_probe(struct platform_device *pdev)
if (IS_ERR(ctrl->clk))
return PTR_ERR(ctrl->clk);
- err = clk_prepare_enable(ctrl->clk);
+ err = devm_tegra_core_dev_init_opp_table_common(&pdev->dev);
+ if (err)
+ return err;
+
+ /*
+ * This driver doesn't support active power management yet,
+ * so we will simply keep device resumed.
+ */
+ pm_runtime_enable(&pdev->dev);
+ err = pm_runtime_resume_and_get(&pdev->dev);
if (err)
return err;
err = reset_control_reset(rst);
if (err) {
dev_err(ctrl->dev, "Failed to reset HW: %d\n", err);
- goto err_disable_clk;
+ goto err_put_pm;
}
writel_relaxed(HWSTATUS_CMD_DEFAULT, ctrl->regs + HWSTATUS_CMD);
@@ -1188,21 +1201,20 @@ static int tegra_nand_probe(struct platform_device *pdev)
dev_name(&pdev->dev), ctrl);
if (err) {
dev_err(ctrl->dev, "Failed to get IRQ: %d\n", err);
- goto err_disable_clk;
+ goto err_put_pm;
}
writel_relaxed(DMA_MST_CTRL_IS_DONE, ctrl->regs + DMA_MST_CTRL);
err = tegra_nand_chips_init(ctrl->dev, ctrl);
if (err)
- goto err_disable_clk;
-
- platform_set_drvdata(pdev, ctrl);
+ goto err_put_pm;
return 0;
-err_disable_clk:
- clk_disable_unprepare(ctrl->clk);
+err_put_pm:
+ pm_runtime_put_sync_suspend(ctrl->dev);
+ pm_runtime_force_suspend(ctrl->dev);
return err;
}
@@ -1219,11 +1231,40 @@ static int tegra_nand_remove(struct platform_device *pdev)
nand_cleanup(chip);
+ pm_runtime_put_sync_suspend(ctrl->dev);
+ pm_runtime_force_suspend(ctrl->dev);
+
+ return 0;
+}
+
+static int __maybe_unused tegra_nand_runtime_resume(struct device *dev)
+{
+ struct tegra_nand_controller *ctrl = dev_get_drvdata(dev);
+ int err;
+
+ err = clk_prepare_enable(ctrl->clk);
+ if (err) {
+ dev_err(dev, "Failed to enable clock: %d\n", err);
+ return err;
+ }
+
+ return 0;
+}
+
+static int __maybe_unused tegra_nand_runtime_suspend(struct device *dev)
+{
+ struct tegra_nand_controller *ctrl = dev_get_drvdata(dev);
+
clk_disable_unprepare(ctrl->clk);
return 0;
}
+static const struct dev_pm_ops tegra_nand_pm = {
+ SET_RUNTIME_PM_OPS(tegra_nand_runtime_suspend, tegra_nand_runtime_resume,
+ NULL)
+};
+
static const struct of_device_id tegra_nand_of_match[] = {
{ .compatible = "nvidia,tegra20-nand" },
{ /* sentinel */ }
@@ -1234,6 +1275,7 @@ static struct platform_driver tegra_nand_driver = {
.driver = {
.name = "tegra-nand",
.of_match_table = tegra_nand_of_match,
+ .pm = &tegra_nand_pm,
},
.probe = tegra_nand_probe,
.remove = tegra_nand_remove,