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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-11 08:27:49 +0000
commitace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch)
treeb2d64bc10158fdd5497876388cd68142ca374ed3 /drivers/clk/mediatek/clk-mt2701-hif.c
parentInitial commit. (diff)
downloadlinux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz
linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/clk/mediatek/clk-mt2701-hif.c')
-rw-r--r--drivers/clk/mediatek/clk-mt2701-hif.c60
1 files changed, 60 insertions, 0 deletions
diff --git a/drivers/clk/mediatek/clk-mt2701-hif.c b/drivers/clk/mediatek/clk-mt2701-hif.c
new file mode 100644
index 0000000000..cbd5ece3e9
--- /dev/null
+++ b/drivers/clk/mediatek/clk-mt2701-hif.c
@@ -0,0 +1,60 @@
+// SPDX-License-Identifier: GPL-2.0-only
+/*
+ * Copyright (c) 2014 MediaTek Inc.
+ * Author: Shunli Wang <shunli.wang@mediatek.com>
+ */
+
+#include <linux/clk-provider.h>
+#include <linux/platform_device.h>
+
+#include "clk-mtk.h"
+#include "clk-gate.h"
+
+#include <dt-bindings/clock/mt2701-clk.h>
+
+static const struct mtk_gate_regs hif_cg_regs = {
+ .sta_ofs = 0x0030,
+};
+
+#define GATE_HIF(_id, _name, _parent, _shift) \
+ GATE_MTK(_id, _name, _parent, &hif_cg_regs, _shift, &mtk_clk_gate_ops_no_setclr_inv)
+
+static const struct mtk_gate hif_clks[] = {
+ GATE_DUMMY(CLK_DUMMY, "hif_dummy"),
+ GATE_HIF(CLK_HIFSYS_USB0PHY, "usb0_phy_clk", "ethpll_500m_ck", 21),
+ GATE_HIF(CLK_HIFSYS_USB1PHY, "usb1_phy_clk", "ethpll_500m_ck", 22),
+ GATE_HIF(CLK_HIFSYS_PCIE0, "pcie0_clk", "ethpll_500m_ck", 24),
+ GATE_HIF(CLK_HIFSYS_PCIE1, "pcie1_clk", "ethpll_500m_ck", 25),
+ GATE_HIF(CLK_HIFSYS_PCIE2, "pcie2_clk", "ethpll_500m_ck", 26),
+};
+
+static u16 rst_ofs[] = { 0x34, };
+
+static const struct mtk_clk_rst_desc clk_rst_desc = {
+ .version = MTK_RST_SIMPLE,
+ .rst_bank_ofs = rst_ofs,
+ .rst_bank_nr = ARRAY_SIZE(rst_ofs),
+};
+
+static const struct mtk_clk_desc hif_desc = {
+ .clks = hif_clks,
+ .num_clks = ARRAY_SIZE(hif_clks),
+ .rst_desc = &clk_rst_desc,
+};
+
+static const struct of_device_id of_match_clk_mt2701_hif[] = {
+ { .compatible = "mediatek,mt2701-hifsys", .data = &hif_desc },
+ { /* sentinel */ }
+};
+MODULE_DEVICE_TABLE(of, of_match_clk_mt2701_hif);
+
+static struct platform_driver clk_mt2701_hif_drv = {
+ .probe = mtk_clk_simple_probe,
+ .remove_new = mtk_clk_simple_remove,
+ .driver = {
+ .name = "clk-mt2701-hif",
+ .of_match_table = of_match_clk_mt2701_hif,
+ },
+};
+module_platform_driver(clk_mt2701_hif_drv);
+MODULE_LICENSE("GPL");