3c1f6e358d
Patches are generated using the "format-patch" command from the following location: *https://www.codeaurora.org/cgit/quic/kernel/galak-msm/log/?h=apq_ipq_base *rev=0771849495b4128cac2faf7d49c85c729fc48b20 Patches numbered 76/77/102/103 have already been integrated in 3.14.12, so they're not in this list. All these patches are either integrated are pending integration into kernel.org, therefore these patches should go away once the kernel gets upgraded to 3.16. Support is currently limited to AP148 board but can be extended to other platforms in the future. These changes do not cover ethernet connectivity. Signed-off-by: Mathieu Olivari <mathieu@codeaurora.org> SVN-Revision: 42334
104 lines
3.2 KiB
Diff
104 lines
3.2 KiB
Diff
From f1db56284b01b1212a211023dcaa7846fd07d0ec Mon Sep 17 00:00:00 2001
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From: Stephen Boyd <sboyd@codeaurora.org>
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Date: Fri, 30 May 2014 17:16:53 -0700
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Subject: [PATCH 173/182] cpufreq: Add module to register cpufreq-krait device
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Register a cpufreq-krait device whenever we detect that a
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"qcom,krait" compatible CPU is present in DT.
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Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
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---
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drivers/cpufreq/Kconfig.arm | 8 +++++++
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drivers/cpufreq/Makefile | 1 +
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drivers/cpufreq/qcom-cpufreq.c | 48 ++++++++++++++++++++++++++++++++++++++++
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3 files changed, 57 insertions(+)
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create mode 100644 drivers/cpufreq/qcom-cpufreq.c
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diff --git a/drivers/cpufreq/Kconfig.arm b/drivers/cpufreq/Kconfig.arm
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index 3129749..6ae884d 100644
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--- a/drivers/cpufreq/Kconfig.arm
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+++ b/drivers/cpufreq/Kconfig.arm
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@@ -123,6 +123,14 @@ config ARM_OMAP2PLUS_CPUFREQ
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depends on ARCH_OMAP2PLUS
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default ARCH_OMAP2PLUS
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+config ARM_QCOM_CPUFREQ
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+ tristate "Qualcomm based"
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+ depends on ARCH_QCOM
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+ help
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+ This adds the CPUFreq driver for Qualcomm SoC based boards.
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+
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+ If in doubt, say N.
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+
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config ARM_S3C_CPUFREQ
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bool
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help
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diff --git a/drivers/cpufreq/Makefile b/drivers/cpufreq/Makefile
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index f6f4485..f5d18a3 100644
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--- a/drivers/cpufreq/Makefile
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+++ b/drivers/cpufreq/Makefile
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@@ -60,6 +60,7 @@ obj-$(CONFIG_ARM_IMX6Q_CPUFREQ) += imx6q-cpufreq.o
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obj-$(CONFIG_ARM_INTEGRATOR) += integrator-cpufreq.o
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obj-$(CONFIG_ARM_KIRKWOOD_CPUFREQ) += kirkwood-cpufreq.o
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obj-$(CONFIG_ARM_OMAP2PLUS_CPUFREQ) += omap-cpufreq.o
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+obj-$(CONFIG_ARM_QCOM_CPUFREQ) += qcom-cpufreq.o
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obj-$(CONFIG_PXA25x) += pxa2xx-cpufreq.o
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obj-$(CONFIG_PXA27x) += pxa2xx-cpufreq.o
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obj-$(CONFIG_PXA3xx) += pxa3xx-cpufreq.o
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diff --git a/drivers/cpufreq/qcom-cpufreq.c b/drivers/cpufreq/qcom-cpufreq.c
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new file mode 100644
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index 0000000..71f4387
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--- /dev/null
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+++ b/drivers/cpufreq/qcom-cpufreq.c
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@@ -0,0 +1,48 @@
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+/* Copyright (c) 2014, The Linux Foundation. All rights reserved.
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+ *
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+ * This program is free software; you can redistribute it and/or modify
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+ * it under the terms of the GNU General Public License version 2 and
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+ * only version 2 as published by the Free Software Foundation.
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+ *
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+ * This program is distributed in the hope that it will be useful,
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+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
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+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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+ * GNU General Public License for more details.
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+ */
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+
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+#include <linux/kernel.h>
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+#include <linux/module.h>
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+#include <linux/cpu.h>
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+#include <linux/of.h>
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+#include <linux/platform_device.h>
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+#include <linux/err.h>
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+
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+static int qcom_cpufreq_driver_init(void)
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+{
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+ struct platform_device_info devinfo = { .name = "cpufreq-krait", };
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+ struct device *cpu_dev;
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+ struct device_node *np;
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+ struct platform_device *pdev;
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+
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+ cpu_dev = get_cpu_device(0);
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+ if (!cpu_dev)
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+ return -ENODEV;
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+
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+ np = of_node_get(cpu_dev->of_node);
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+ if (!np)
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+ return -ENOENT;
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+
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+ if (!of_device_is_compatible(np, "qcom,krait")) {
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+ of_node_put(np);
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+ return -ENODEV;
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+ }
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+ of_node_put(np);
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+
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+ pdev = platform_device_register_full(&devinfo);
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+
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+ return PTR_ERR_OR_ZERO(pdev);
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+}
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+module_init(qcom_cpufreq_driver_init);
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+
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+MODULE_DESCRIPTION("Qualcomm CPUfreq driver");
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+MODULE_LICENSE("GPL v2");
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--
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1.7.10.4
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