mirror of
https://github.com/openwrt/openwrt.git
synced 2024-12-28 01:28:59 +00:00
63066d3006
Reworked: - 0034 patchset update Added: - 080 Add support for pinctrl-msm framework Removed: - 0074-ipq806x-usb-Control-USB-master-reset.patch (we now have a dedicated driver for qcom usb) - 0047-mtd-nand-Create-a-BBT-flag-to-access-bad-block-marke (merged upstream) - 310-msm-adhoc-bus-support (it looks like it was never actually used in any dts) Signed-off-by: Christian Lamparter <chunkeey@gmail.com> Signed-off-by: Ansuel Smith <ansuelsmth@gmail.com> [commit subject and description facelift, SoB fix] Signed-off-by: Petr Štetiar <ynezz@true.cz>
143 lines
4.1 KiB
Diff
143 lines
4.1 KiB
Diff
From cb546b797a0da4dbb1a0c76a2a357921887b6189 Mon Sep 17 00:00:00 2001
|
|
From: Stephen Boyd <sboyd@codeaurora.org>
|
|
Date: Tue, 14 Aug 2018 17:42:22 +0530
|
|
Subject: [PATCH 03/12] clk: qcom: Add HFPLL driver
|
|
|
|
On some devices (MSM8974 for example), the HFPLLs are
|
|
instantiated within the Krait processor subsystem as separate
|
|
register regions. Add a driver for these PLLs so that we can
|
|
provide HFPLL clocks for use by the system.
|
|
|
|
Cc: <devicetree@vger.kernel.org>
|
|
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
|
|
Signed-off-by: Sricharan R <sricharan@codeaurora.org>
|
|
Tested-by: Craig Tatlor <ctatlor97@gmail.com>
|
|
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
|
|
---
|
|
drivers/clk/qcom/Kconfig | 8 ++++
|
|
drivers/clk/qcom/Makefile | 1 +
|
|
drivers/clk/qcom/hfpll.c | 96 +++++++++++++++++++++++++++++++++++++++
|
|
3 files changed, 105 insertions(+)
|
|
create mode 100644 drivers/clk/qcom/hfpll.c
|
|
|
|
--- a/drivers/clk/qcom/Kconfig
|
|
+++ b/drivers/clk/qcom/Kconfig
|
|
@@ -272,3 +272,11 @@ config SPMI_PMIC_CLKDIV
|
|
Technologies, Inc. SPMI PMIC. It configures the frequency of
|
|
clkdiv outputs of the PMIC. These clocks are typically wired
|
|
through alternate functions on GPIO pins.
|
|
+
|
|
+config QCOM_HFPLL
|
|
+ tristate "High-Frequency PLL (HFPLL) Clock Controller"
|
|
+ depends on COMMON_CLK_QCOM
|
|
+ help
|
|
+ Support for the high-frequency PLLs present on Qualcomm devices.
|
|
+ Say Y if you want to support CPU frequency scaling on devices
|
|
+ such as MSM8974, APQ8084, etc.
|
|
--- a/drivers/clk/qcom/Makefile
|
|
+++ b/drivers/clk/qcom/Makefile
|
|
@@ -44,3 +44,4 @@ obj-$(CONFIG_SDM_DISPCC_845) += dispcc-s
|
|
obj-$(CONFIG_SDM_GCC_845) += gcc-sdm845.o
|
|
obj-$(CONFIG_SDM_VIDEOCC_845) += videocc-sdm845.o
|
|
obj-$(CONFIG_SPMI_PMIC_CLKDIV) += clk-spmi-pmic-div.o
|
|
+obj-$(CONFIG_QCOM_HFPLL) += hfpll.o
|
|
--- /dev/null
|
|
+++ b/drivers/clk/qcom/hfpll.c
|
|
@@ -0,0 +1,96 @@
|
|
+// SPDX-License-Identifier: GPL-2.0
|
|
+// Copyright (c) 2018, The Linux Foundation. All rights reserved.
|
|
+
|
|
+#include <linux/kernel.h>
|
|
+#include <linux/init.h>
|
|
+#include <linux/module.h>
|
|
+#include <linux/platform_device.h>
|
|
+#include <linux/of.h>
|
|
+#include <linux/clk.h>
|
|
+#include <linux/clk-provider.h>
|
|
+#include <linux/regmap.h>
|
|
+
|
|
+#include "clk-regmap.h"
|
|
+#include "clk-hfpll.h"
|
|
+
|
|
+static const struct hfpll_data hdata = {
|
|
+ .mode_reg = 0x00,
|
|
+ .l_reg = 0x04,
|
|
+ .m_reg = 0x08,
|
|
+ .n_reg = 0x0c,
|
|
+ .user_reg = 0x10,
|
|
+ .config_reg = 0x14,
|
|
+ .config_val = 0x430405d,
|
|
+ .status_reg = 0x1c,
|
|
+ .lock_bit = 16,
|
|
+
|
|
+ .user_val = 0x8,
|
|
+ .user_vco_mask = 0x100000,
|
|
+ .low_vco_max_rate = 1248000000,
|
|
+ .min_rate = 537600000UL,
|
|
+ .max_rate = 2900000000UL,
|
|
+};
|
|
+
|
|
+static const struct of_device_id qcom_hfpll_match_table[] = {
|
|
+ { .compatible = "qcom,hfpll" },
|
|
+ { }
|
|
+};
|
|
+MODULE_DEVICE_TABLE(of, qcom_hfpll_match_table);
|
|
+
|
|
+static const struct regmap_config hfpll_regmap_config = {
|
|
+ .reg_bits = 32,
|
|
+ .reg_stride = 4,
|
|
+ .val_bits = 32,
|
|
+ .max_register = 0x30,
|
|
+ .fast_io = true,
|
|
+};
|
|
+
|
|
+static int qcom_hfpll_probe(struct platform_device *pdev)
|
|
+{
|
|
+ struct resource *res;
|
|
+ struct device *dev = &pdev->dev;
|
|
+ void __iomem *base;
|
|
+ struct regmap *regmap;
|
|
+ struct clk_hfpll *h;
|
|
+ struct clk_init_data init = {
|
|
+ .parent_names = (const char *[]){ "xo" },
|
|
+ .num_parents = 1,
|
|
+ .ops = &clk_ops_hfpll,
|
|
+ };
|
|
+
|
|
+ h = devm_kzalloc(dev, sizeof(*h), GFP_KERNEL);
|
|
+ if (!h)
|
|
+ return -ENOMEM;
|
|
+
|
|
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
|
|
+ base = devm_ioremap_resource(dev, res);
|
|
+ if (IS_ERR(base))
|
|
+ return PTR_ERR(base);
|
|
+
|
|
+ regmap = devm_regmap_init_mmio(&pdev->dev, base, &hfpll_regmap_config);
|
|
+ if (IS_ERR(regmap))
|
|
+ return PTR_ERR(regmap);
|
|
+
|
|
+ if (of_property_read_string_index(dev->of_node, "clock-output-names",
|
|
+ 0, &init.name))
|
|
+ return -ENODEV;
|
|
+
|
|
+ h->d = &hdata;
|
|
+ h->clkr.hw.init = &init;
|
|
+ spin_lock_init(&h->lock);
|
|
+
|
|
+ return devm_clk_register_regmap(&pdev->dev, &h->clkr);
|
|
+}
|
|
+
|
|
+static struct platform_driver qcom_hfpll_driver = {
|
|
+ .probe = qcom_hfpll_probe,
|
|
+ .driver = {
|
|
+ .name = "qcom-hfpll",
|
|
+ .of_match_table = qcom_hfpll_match_table,
|
|
+ },
|
|
+};
|
|
+module_platform_driver(qcom_hfpll_driver);
|
|
+
|
|
+MODULE_DESCRIPTION("QCOM HFPLL Clock Driver");
|
|
+MODULE_LICENSE("GPL v2");
|
|
+MODULE_ALIAS("platform:qcom-hfpll");
|