[v3,32/39] memory: tegra20-emc: Create tegra20-devfreq device
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Message ID 20200607185530.18113-33-digetx@gmail.com
State Not Applicable, archived
Headers show
Series
  • Introduce memory interconnect for NVIDIA Tegra SoCs
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Commit Message

Dmitry Osipenko June 7, 2020, 6:55 p.m. UTC
The tegra20-devfreq driver provides memory frequency scaling functionality
and it uses EMC clock for the scaling. Since tegra20-devfreq is a software
driver, the device for the driver needs to be created manually. Let's do
it from EMC driver since it provides the clk rate-change functionality.

Signed-off-by: Dmitry Osipenko <digetx@gmail.com>
---
 drivers/memory/tegra/tegra20-emc.c | 3 +++
 1 file changed, 3 insertions(+)

Patch
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diff --git a/drivers/memory/tegra/tegra20-emc.c b/drivers/memory/tegra/tegra20-emc.c
index 2281bf9b784b..6dfd9807e042 100644
--- a/drivers/memory/tegra/tegra20-emc.c
+++ b/drivers/memory/tegra/tegra20-emc.c
@@ -882,6 +882,9 @@  static int tegra_emc_probe(struct platform_device *pdev)
 				err);
 	}
 
+	if (IS_ENABLED(CONFIG_ARM_TEGRA20_DEVFREQ))
+		platform_device_register_simple("tegra20-devfreq", -1, NULL, 0);
+
 	/*
 	 * Don't allow the kernel module to be unloaded. Unloading adds some
 	 * extra complexity which doesn't really worth the effort in a case of