diff options
Diffstat (limited to 'target/linux/ipq806x/patches-4.9/0042-clk-qcom-Add-KPSS-ACC-GCC-driver.patch')
| -rw-r--r-- | target/linux/ipq806x/patches-4.9/0042-clk-qcom-Add-KPSS-ACC-GCC-driver.patch | 209 |
1 files changed, 0 insertions, 209 deletions
diff --git a/target/linux/ipq806x/patches-4.9/0042-clk-qcom-Add-KPSS-ACC-GCC-driver.patch b/target/linux/ipq806x/patches-4.9/0042-clk-qcom-Add-KPSS-ACC-GCC-driver.patch deleted file mode 100644 index 5a76fbc8b6..0000000000 --- a/target/linux/ipq806x/patches-4.9/0042-clk-qcom-Add-KPSS-ACC-GCC-driver.patch +++ /dev/null @@ -1,209 +0,0 @@ -From patchwork Fri Dec 8 09:42:26 2017 -Content-Type: text/plain; charset="utf-8" -MIME-Version: 1.0 -Content-Transfer-Encoding: 7bit -Subject: [v4,08/12] clk: qcom: Add KPSS ACC/GCC driver -From: Sricharan R <sricharan@codeaurora.org> -X-Patchwork-Id: 10102023 -Message-Id: <1512726150-7204-9-git-send-email-sricharan@codeaurora.org> -To: mturquette@baylibre.com, sboyd@codeaurora.org, - devicetree@vger.kernel.org, linux-pm@vger.kernel.org, - linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, - viresh.kumar@linaro.org, linux-arm-kernel@lists.infradead.org -Cc: sricharan@codeaurora.org -Date: Fri, 8 Dec 2017 15:12:26 +0530 - -From: Stephen Boyd <sboyd@codeaurora.org> - -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. - -Cc: <devicetree@vger.kernel.org> -Signed-off-by: Stephen Boyd <sboyd@codeaurora.org> ---- - .../devicetree/bindings/arm/msm/qcom,kpss-acc.txt | 7 ++ - .../devicetree/bindings/arm/msm/qcom,kpss-gcc.txt | 28 +++++++ - drivers/clk/qcom/Kconfig | 8 ++ - drivers/clk/qcom/Makefile | 1 + - drivers/clk/qcom/kpss-xcc.c | 96 ++++++++++++++++++++++ - 5 files changed, 140 insertions(+) - create mode 100644 Documentation/devicetree/bindings/arm/msm/qcom,kpss-gcc.txt - create mode 100644 drivers/clk/qcom/kpss-xcc.c - ---- a/Documentation/devicetree/bindings/arm/msm/qcom,kpss-acc.txt -+++ b/Documentation/devicetree/bindings/arm/msm/qcom,kpss-acc.txt -@@ -21,10 +21,17 @@ PROPERTIES - the register region. An optional second element specifies - the base address and size of the alias register region. - -+- clock-output-names: -+ Usage: optional -+ Value type: <string> -+ Definition: Name of the output clock. Typically acpuX_aux where X is a -+ CPU number starting at 0. -+ - Example: - - clock-controller@2088000 { - compatible = "qcom,kpss-acc-v2"; - reg = <0x02088000 0x1000>, - <0x02008000 0x1000>; -+ clock-output-names = "acpu0_aux"; - }; ---- /dev/null -+++ b/Documentation/devicetree/bindings/arm/msm/qcom,kpss-gcc.txt -@@ -0,0 +1,28 @@ -+Krait Processor Sub-system (KPSS) Global Clock Controller (GCC) -+ -+PROPERTIES -+ -+- compatible: -+ Usage: required -+ Value type: <string> -+ Definition: should be one of: -+ "qcom,kpss-gcc" -+ -+- reg: -+ Usage: required -+ Value type: <prop-encoded-array> -+ Definition: base address and size of the register region -+ -+- clock-output-names: -+ Usage: required -+ Value type: <string> -+ Definition: Name of the output clock. Typically acpu_l2_aux indicating -+ an L2 cache auxiliary clock. -+ -+Example: -+ -+ l2cc: clock-controller@2011000 { -+ compatible = "qcom,kpss-gcc"; -+ reg = <0x2011000 0x1000>; -+ clock-output-names = "acpu_l2_aux"; -+ }; ---- a/drivers/clk/qcom/Kconfig -+++ b/drivers/clk/qcom/Kconfig -@@ -188,6 +188,14 @@ 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 -@@ -33,4 +33,5 @@ obj-$(CONFIG_MSM_MMCC_8974) += mmcc-msm8 - obj-$(CONFIG_MSM_MMCC_8996) += mmcc-msm8996.o - obj-$(CONFIG_QCOM_CLK_RPM) += clk-rpm.o - obj-$(CONFIG_QCOM_CLK_SMD_RPM) += clk-smd-rpm.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 +1,96 @@ -+/* Copyright (c) 2014-2015, 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> -+ -+static const char *aux_parents[] = { -+ "pll8_vote", -+ "pxo", -+}; -+ -+static unsigned int 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; -+ const char *name; -+ -+ 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); -+ -+ if (id->data) { -+ if (of_property_read_string_index(pdev->dev.of_node, -+ "clock-output-names", -+ 0, &name)) -+ return -ENODEV; -+ base += 0x14; -+ } else { -+ name = "acpu_l2_aux"; -+ base += 0x28; -+ } -+ -+ clk = clk_register_mux_table(&pdev->dev, name, aux_parents, -+ ARRAY_SIZE(aux_parents), 0, base, 0, 0x3, -+ 0, aux_parent_map, NULL); -+ -+ platform_set_drvdata(pdev, clk); -+ -+ return PTR_ERR_OR_ZERO(clk); -+} -+ -+static int kpss_xcc_driver_remove(struct platform_device *pdev) -+{ -+ clk_unregister_mux(platform_get_drvdata(pdev)); -+ return 0; -+} -+ -+static struct platform_driver kpss_xcc_driver = { -+ .probe = kpss_xcc_driver_probe, -+ .remove = kpss_xcc_driver_remove, -+ .driver = { -+ .name = "kpss-xcc", -+ .of_match_table = kpss_xcc_match_table, -+ }, -+}; -+module_platform_driver(kpss_xcc_driver); -+ -+MODULE_DESCRIPTION("Krait Processor Sub System (KPSS) Clock Driver"); -+MODULE_LICENSE("GPL v2"); -+MODULE_ALIAS("platform:kpss-xcc"); |