diff options
Diffstat (limited to 'target/linux/ipq806x/patches/0170-clk-qcom-Add-KPSS-ACC-GCC-driver.patch')
| -rw-r--r-- | target/linux/ipq806x/patches/0170-clk-qcom-Add-KPSS-ACC-GCC-driver.patch | 161 |
1 files changed, 0 insertions, 161 deletions
diff --git a/target/linux/ipq806x/patches/0170-clk-qcom-Add-KPSS-ACC-GCC-driver.patch b/target/linux/ipq806x/patches/0170-clk-qcom-Add-KPSS-ACC-GCC-driver.patch deleted file mode 100644 index b16108ed43..0000000000 --- a/target/linux/ipq806x/patches/0170-clk-qcom-Add-KPSS-ACC-GCC-driver.patch +++ /dev/null @@ -1,161 +0,0 @@ -From 67a9d5a02b178644da624ef9c32b4e6abb2c4f6e Mon Sep 17 00:00:00 2001 -From: Stephen Boyd <sboyd@codeaurora.org> -Date: Wed, 18 Jun 2014 14:25:41 -0700 -Subject: [PATCH 170/182] clk: qcom: Add KPSS ACC/GCC driver - -The ACC and GCC regions present in KPSSv1 contain registers to -control clocks and power to each Krait CPU and L2. For CPUfreq -purposes probe these devices and expose a mux clock that chooses -between PXO and PLL8. - -Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> ---- - drivers/clk/qcom/Kconfig | 8 +++ - drivers/clk/qcom/Makefile | 1 + - drivers/clk/qcom/kpss-xcc.c | 115 +++++++++++++++++++++++++++++++++++++++++++ - 3 files changed, 124 insertions(+) - create mode 100644 drivers/clk/qcom/kpss-xcc.c - ---- a/drivers/clk/qcom/Kconfig -+++ b/drivers/clk/qcom/Kconfig -@@ -62,6 +62,14 @@ config QCOM_HFPLL - Say Y if you want to support CPU frequency scaling on devices - such as MSM8974, APQ8084, etc. - -+config KPSS_XCC -+ tristate "KPSS Clock Controller" -+ depends on COMMON_CLK_QCOM -+ help -+ Support for the Krait ACC and GCC clock controllers. Say Y -+ if you want to support CPU frequency scaling on devices such -+ as MSM8960, APQ8064, etc. -+ - config KRAIT_CLOCKS - bool - select KRAIT_L2_ACCESSORS ---- a/drivers/clk/qcom/Makefile -+++ b/drivers/clk/qcom/Makefile -@@ -17,4 +17,5 @@ obj-$(CONFIG_MSM_GCC_8960) += gcc-msm896 - obj-$(CONFIG_MSM_GCC_8974) += gcc-msm8974.o - obj-$(CONFIG_MSM_MMCC_8960) += mmcc-msm8960.o - obj-$(CONFIG_MSM_MMCC_8974) += mmcc-msm8974.o -+obj-$(CONFIG_KPSS_XCC) += kpss-xcc.o - obj-$(CONFIG_QCOM_HFPLL) += hfpll.o ---- /dev/null -+++ b/drivers/clk/qcom/kpss-xcc.c -@@ -0,0 +1,115 @@ -+/* Copyright (c) 2014, The Linux Foundation. All rights reserved. -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License version 2 and -+ * only version 2 as published by the Free Software Foundation. -+ * -+ * This program is distributed in the hope that it will be useful, -+ * but WITHOUT ANY WARRANTY; without even the implied warranty of -+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+ * GNU General Public License for more details. -+ */ -+ -+#include <linux/kernel.h> -+#include <linux/init.h> -+#include <linux/module.h> -+#include <linux/platform_device.h> -+#include <linux/err.h> -+#include <linux/io.h> -+#include <linux/of.h> -+#include <linux/of_device.h> -+#include <linux/clk.h> -+#include <linux/clk-provider.h> -+#include <linux/clk/msm-clk-generic.h> -+ -+static int kpss_xcc_set_mux_sel(struct mux_clk *clk, int sel) -+{ -+ writel_relaxed(sel, clk->base + clk->offset); -+ return 0; -+} -+ -+static int kpss_xcc_get_mux_sel(struct mux_clk *clk) -+{ -+ return readl_relaxed(clk->base + clk->offset); -+} -+ -+static const struct clk_mux_ops kpss_xcc_ops = { -+ .set_mux_sel = kpss_xcc_set_mux_sel, -+ .get_mux_sel = kpss_xcc_get_mux_sel, -+}; -+ -+static const char *aux_parents[] = { -+ "pll8_vote", -+ "pxo", -+}; -+ -+static u8 aux_parent_map[] = { -+ 3, -+ 0, -+}; -+ -+static const struct of_device_id kpss_xcc_match_table[] = { -+ { .compatible = "qcom,kpss-acc-v1", .data = (void *)1UL }, -+ { .compatible = "qcom,kpss-gcc" }, -+ {} -+}; -+MODULE_DEVICE_TABLE(of, kpss_xcc_match_table); -+ -+static int kpss_xcc_driver_probe(struct platform_device *pdev) -+{ -+ const struct of_device_id *id; -+ struct clk *clk; -+ struct resource *res; -+ void __iomem *base; -+ struct mux_clk *mux_clk; -+ struct clk_init_data init = { -+ .parent_names = aux_parents, -+ .num_parents = 2, -+ .ops = &clk_ops_gen_mux, -+ }; -+ -+ id = of_match_device(kpss_xcc_match_table, &pdev->dev); -+ if (!id) -+ return -ENODEV; -+ -+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0); -+ base = devm_ioremap_resource(&pdev->dev, res); -+ if (IS_ERR(base)) -+ return PTR_ERR(base); -+ -+ mux_clk = devm_kzalloc(&pdev->dev, sizeof(*mux_clk), GFP_KERNEL); -+ if (!mux_clk) -+ return -ENOMEM; -+ -+ mux_clk->mask = 0x3; -+ mux_clk->parent_map = aux_parent_map; -+ mux_clk->ops = &kpss_xcc_ops; -+ mux_clk->base = base; -+ mux_clk->hw.init = &init; -+ -+ if (id->data) { -+ if (of_property_read_string_index(pdev->dev.of_node, -+ "clock-output-names", 0, &init.name)) -+ return -ENODEV; -+ mux_clk->offset = 0x14; -+ } else { -+ init.name = "acpu_l2_aux"; -+ mux_clk->offset = 0x28; -+ } -+ -+ clk = devm_clk_register(&pdev->dev, &mux_clk->hw); -+ -+ return PTR_ERR_OR_ZERO(clk); -+} -+ -+static struct platform_driver kpss_xcc_driver = { -+ .probe = kpss_xcc_driver_probe, -+ .driver = { -+ .name = "kpss-xcc", -+ .of_match_table = kpss_xcc_match_table, -+ .owner = THIS_MODULE, -+ }, -+}; -+module_platform_driver(kpss_xcc_driver); -+ -+MODULE_LICENSE("GPL v2"); |