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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-27 10:05:51 +0000
commit5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch)
treea94efe259b9009378be6d90eb30d2b019d95c194 /drivers/clk/qcom/apss-ipq-pll.c
parentInitial commit. (diff)
downloadlinux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.tar.xz
linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.zip
Adding upstream version 5.10.209.upstream/5.10.209
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/clk/qcom/apss-ipq-pll.c')
-rw-r--r--drivers/clk/qcom/apss-ipq-pll.c96
1 files changed, 96 insertions, 0 deletions
diff --git a/drivers/clk/qcom/apss-ipq-pll.c b/drivers/clk/qcom/apss-ipq-pll.c
new file mode 100644
index 000000000..bef7899ad
--- /dev/null
+++ b/drivers/clk/qcom/apss-ipq-pll.c
@@ -0,0 +1,96 @@
+// SPDX-License-Identifier: GPL-2.0
+// Copyright (c) 2018, The Linux Foundation. All rights reserved.
+#include <linux/clk-provider.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/regmap.h>
+
+#include "clk-alpha-pll.h"
+
+static const u8 ipq_pll_offsets[] = {
+ [PLL_OFF_L_VAL] = 0x08,
+ [PLL_OFF_ALPHA_VAL] = 0x10,
+ [PLL_OFF_USER_CTL] = 0x18,
+ [PLL_OFF_CONFIG_CTL] = 0x20,
+ [PLL_OFF_CONFIG_CTL_U] = 0x24,
+ [PLL_OFF_STATUS] = 0x28,
+ [PLL_OFF_TEST_CTL] = 0x30,
+ [PLL_OFF_TEST_CTL_U] = 0x34,
+};
+
+static struct clk_alpha_pll ipq_pll = {
+ .offset = 0x0,
+ .regs = ipq_pll_offsets,
+ .flags = SUPPORTS_DYNAMIC_UPDATE,
+ .clkr = {
+ .enable_reg = 0x0,
+ .enable_mask = BIT(0),
+ .hw.init = &(struct clk_init_data){
+ .name = "a53pll",
+ .parent_data = &(const struct clk_parent_data) {
+ .fw_name = "xo",
+ },
+ .num_parents = 1,
+ .ops = &clk_alpha_pll_huayra_ops,
+ },
+ },
+};
+
+static const struct alpha_pll_config ipq_pll_config = {
+ .l = 0x37,
+ .config_ctl_val = 0x04141200,
+ .config_ctl_hi_val = 0x0,
+ .early_output_mask = BIT(3),
+ .main_output_mask = BIT(0),
+};
+
+static const struct regmap_config ipq_pll_regmap_config = {
+ .reg_bits = 32,
+ .reg_stride = 4,
+ .val_bits = 32,
+ .max_register = 0x40,
+ .fast_io = true,
+};
+
+static int apss_ipq_pll_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct regmap *regmap;
+ void __iomem *base;
+ int ret;
+
+ base = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(base))
+ return PTR_ERR(base);
+
+ regmap = devm_regmap_init_mmio(dev, base, &ipq_pll_regmap_config);
+ if (IS_ERR(regmap))
+ return PTR_ERR(regmap);
+
+ clk_alpha_pll_configure(&ipq_pll, regmap, &ipq_pll_config);
+
+ ret = devm_clk_register_regmap(dev, &ipq_pll.clkr);
+ if (ret)
+ return ret;
+
+ return devm_of_clk_add_hw_provider(dev, of_clk_hw_simple_get,
+ &ipq_pll.clkr.hw);
+}
+
+static const struct of_device_id apss_ipq_pll_match_table[] = {
+ { .compatible = "qcom,ipq6018-a53pll" },
+ { }
+};
+MODULE_DEVICE_TABLE(of, apss_ipq_pll_match_table);
+
+static struct platform_driver apss_ipq_pll_driver = {
+ .probe = apss_ipq_pll_probe,
+ .driver = {
+ .name = "qcom-ipq-apss-pll",
+ .of_match_table = apss_ipq_pll_match_table,
+ },
+};
+module_platform_driver(apss_ipq_pll_driver);
+
+MODULE_DESCRIPTION("Qualcomm technology Inc APSS ALPHA PLL Driver");
+MODULE_LICENSE("GPL v2");